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<tr class="memdesc:gad5054d19c205eebab5f2c6e42d8cbb3c"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a Q31 vector. <a href="group__BasicNegate.html#gad5054d19c205eebab5f2c6e42d8cbb3c">More...</a><br/></td></tr>
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<tr class="memdesc:gaea178c9f486ed4704f8723a2efee271c"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a Q7 vector. <a href="group__BasicNegate.html#gaea178c9f486ed4704f8723a2efee271c">More...</a><br/></td></tr>
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<tr class="memdesc:ga4ea8c9e1829e3b4d297f87e4a40478ad"><td class="mdescLeft"> </td><td class="mdescRight">Adds a constant offset to a floating-point vector. <a href="group__BasicOffset.html#ga4ea8c9e1829e3b4d297f87e4a40478ad">More...</a><br/></td></tr>
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<tr class="memitem:gaffc78c4cda3e39b518d79cef293532b7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicOffset.html#gaffc78c4cda3e39b518d79cef293532b7">arm_offset_q15</a> (const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> offset, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:gaffc78c4cda3e39b518d79cef293532b7"><td class="mdescLeft"> </td><td class="mdescRight">Adds a constant offset to a Q15 vector. <a href="group__BasicOffset.html#gaffc78c4cda3e39b518d79cef293532b7">More...</a><br/></td></tr>
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<tr class="memdesc:ga55604198ef59f391a96ec95c188fca85"><td class="mdescLeft"> </td><td class="mdescRight">Adds a constant offset to a Q31 vector. <a href="group__BasicOffset.html#ga55604198ef59f391a96ec95c188fca85">More...</a><br/></td></tr>
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<tr class="memitem:gaeecbacd3fb37c608ec25474d3a0dffa9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__PID.html#gaeecbacd3fb37c608ec25474d3a0dffa9">arm_pid_reset_q31</a> (<a class="el" href="structarm__pid__instance__q31.html">arm_pid_instance_q31</a> *S)</td></tr>
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<tr class="memitem:gad0630e3743da2b5aedbe2bb624a8532f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__power.html#gad0630e3743da2b5aedbe2bb624a8532f">arm_power_f32</a> (const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pResult)</td></tr>
<tr class="memdesc:gad0630e3743da2b5aedbe2bb624a8532f"><td class="mdescLeft"> </td><td class="mdescRight">Sum of the squares of the elements of a floating-point vector. <a href="group__power.html#gad0630e3743da2b5aedbe2bb624a8532f">More...</a><br/></td></tr>
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<tr class="memitem:gae490bf87084bcdb5dc9fd1d2ef4030b9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__power.html#gae490bf87084bcdb5dc9fd1d2ef4030b9">arm_power_q31</a> (const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, <a class="el" href="arm__math_8h.html#a5aea1cb12fc02d9d44c8abf217eaa5c6">q63_t</a> *pResult)</td></tr>
<tr class="memdesc:gae490bf87084bcdb5dc9fd1d2ef4030b9"><td class="mdescLeft"> </td><td class="mdescRight">Sum of the squares of the elements of a Q31 vector. <a href="group__power.html#gae490bf87084bcdb5dc9fd1d2ef4030b9">More...</a><br/></td></tr>
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<tr class="memdesc:gaeb3b9b8e0a4c4bb2549ede074cf43f58"><td class="mdescLeft"> </td><td class="mdescRight">Sum of the squares of the elements of a Q7 vector. <a href="group__power.html#gaeb3b9b8e0a4c4bb2549ede074cf43f58">More...</a><br/></td></tr>
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<tr class="memdesc:ga5a75381e7d63ea3a3a315344615281cf"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q15 vector to floating-point vector. <a href="group__q15__to__x.html#ga5a75381e7d63ea3a3a315344615281cf">More...</a><br/></td></tr>
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<tr class="memitem:ga39647b2109a5c64a067b776302c4a083"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__q15__to__x.html#ga39647b2109a5c64a067b776302c4a083">arm_q15_to_q31</a> (const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga39647b2109a5c64a067b776302c4a083"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q15 vector to Q31 vector. <a href="group__q15__to__x.html#ga39647b2109a5c64a067b776302c4a083">More...</a><br/></td></tr>
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<tr class="memdesc:ga837ce281d0e2d5fc445c48334307db19"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q15 vector to Q7 vector. <a href="group__q15__to__x.html#ga837ce281d0e2d5fc445c48334307db19">More...</a><br/></td></tr>
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<tr class="memdesc:ga19a9d023aca1f99abd5da6f13a42b6cf"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q31 vector to floating-point vector. <a href="group__q31__to__x.html#ga19a9d023aca1f99abd5da6f13a42b6cf">More...</a><br/></td></tr>
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<tr class="memitem:ga775f3a1996f00a8048c4b7acba2e0828"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__q31__to__x.html#ga775f3a1996f00a8048c4b7acba2e0828">arm_q31_to_q15</a> (const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga775f3a1996f00a8048c4b7acba2e0828"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q31 vector to Q15 vector. <a href="group__q31__to__x.html#ga775f3a1996f00a8048c4b7acba2e0828">More...</a><br/></td></tr>
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<tr class="memdesc:gabef5357eb3348b3b5b38915fffce8f3d"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q31 vector to Q7 vector. <a href="group__q31__to__x.html#gabef5357eb3348b3b5b38915fffce8f3d">More...</a><br/></td></tr>
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<tr class="memdesc:ga840d8a0e8499d02a54f459bb29f5d63c"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q7 vector to floating-point vector. <a href="group__q7__to__x.html#ga840d8a0e8499d02a54f459bb29f5d63c">More...</a><br/></td></tr>
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<tr class="memitem:ga1023c3832ca6be3a6d17ef338cafa28b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__q7__to__x.html#ga1023c3832ca6be3a6d17ef338cafa28b">arm_q7_to_q15</a> (const <a class="el" href="arm__math_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pSrc, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga1023c3832ca6be3a6d17ef338cafa28b"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q7 vector to Q15 vector. <a href="group__q7__to__x.html#ga1023c3832ca6be3a6d17ef338cafa28b">More...</a><br/></td></tr>
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<tr class="memdesc:ga3c73bfb98fc5a1b4f612264662d0549c"><td class="mdescLeft"> </td><td class="mdescRight">Converts the elements of the Q7 vector to Q31 vector. <a href="group__q7__to__x.html#ga3c73bfb98fc5a1b4f612264662d0549c">More...</a><br/></td></tr>
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<tr class="memitem:ac00819467b00656801a5f6a9a5e6d824"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__f32_8c.html#ac00819467b00656801a5f6a9a5e6d824">arm_radix4_butterfly_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint16_t fftLen, const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pCoef, uint16_t twidCoefModifier)</td></tr>
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<tr class="memitem:ab3c001e14852633e343079f97cd96f44"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__f32_8c.html#ab3c001e14852633e343079f97cd96f44">arm_radix4_butterfly_inverse_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint16_t fftLen, const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pCoef, uint16_t twidCoefModifier, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> onebyfftLen)</td></tr>
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<tr class="memitem:a81008b023cbc9d37b3ff849877d1eb52"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__f32_8c.html#a81008b023cbc9d37b3ff849877d1eb52">arm_bitreversal_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint16_t <a class="el" href="arm__fft__bin__example__f32_8c.html#a9b500899c581f6df3ffc0a9f3a9ef6aa">fftSize</a>, uint16_t bitRevFactor, const uint16_t *pBitRevTab)</td></tr>
<tr class="memdesc:a81008b023cbc9d37b3ff849877d1eb52"><td class="mdescLeft"> </td><td class="mdescRight">In-place floating-point bit reversal function. <a href="#a81008b023cbc9d37b3ff849877d1eb52">More...</a><br/></td></tr>
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<tr class="memitem:afe1ca79cba2ffb718de94d57af948c9c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__f32_8c.html#afe1ca79cba2ffb718de94d57af948c9c">arm_split_rfft_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pATable, const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pBTable, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pDst, uint32_t modifier)</td></tr>
<tr class="memdesc:afe1ca79cba2ffb718de94d57af948c9c"><td class="mdescLeft"> </td><td class="mdescRight">Core Real FFT process. <a href="#afe1ca79cba2ffb718de94d57af948c9c">More...</a><br/></td></tr>
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<tr class="memitem:a522656f688f96b46d74ecced3d641ba7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__f32_8c.html#a522656f688f96b46d74ecced3d641ba7">arm_split_rifft_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pATable, const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pBTable, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pDst, uint32_t modifier)</td></tr>
<tr class="memdesc:a522656f688f96b46d74ecced3d641ba7"><td class="mdescLeft"> </td><td class="mdescRight">Core Real IFFT process. <a href="#a522656f688f96b46d74ecced3d641ba7">More...</a><br/></td></tr>
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<tr class="memitem:ga3df1766d230532bc068fc4ed69d0fcdc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RealFFT.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32</a> (const <a class="el" href="structarm__rfft__instance__f32.html">arm_rfft_instance_f32</a> *S, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pDst)</td></tr>
<tr class="memdesc:ga3df1766d230532bc068fc4ed69d0fcdc"><td class="mdescLeft"> </td><td class="mdescRight">Processing function for the floating-point RFFT/RIFFT. <a href="group__RealFFT.html#ga3df1766d230532bc068fc4ed69d0fcdc">More...</a><br/></td></tr>
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<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a81008b023cbc9d37b3ff849877d1eb52"></a>
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<td class="memname">void arm_bitreversal_f32 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"><em>fftSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"><em>bitRevFactor</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const uint16_t * </td>
<td class="paramname"><em>pBitRevTab</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to in-place floating-point data buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftSize</td><td>length of FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitRevFactor</td><td>bit reversal modifier that supports different size FFTs with the same bit reversal table </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pBitRevTab</td><td>points to bit reversal table </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</div>
</div>
<a class="anchor" id="ac00819467b00656801a5f6a9a5e6d824"></a>
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<td class="memname">void arm_radix4_butterfly_f32 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pCoef</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"><em>twidCoefModifier</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>end of ComplexFFT group brief Core function for the floating-point CFFT butterfly process. param[in,out] pSrc points to the in-place buffer of floating-point data type param[in] fftLen length of the FFT param[in] pCoef points to the twiddle coefficient buffer param[in] twidCoefModifier twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table return none </p>
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<td class="memname">void arm_radix4_butterfly_inverse_f32 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pCoef</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint16_t </td>
<td class="paramname"><em>twidCoefModifier</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td>
<td class="paramname"><em>onebyfftLen</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>brief Core function for the floating-point CIFFT butterfly process. param[in,out] pSrc points to the in-place buffer of floating-point data type param[in] fftLen length of the FFT param[in] pCoef points to twiddle coefficient buffer param[in] twidCoefModifier twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. param[in] onebyfftLen value of 1/fftLen return none </p>
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<td class="memname">void arm_split_rfft_f32 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pATable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pBTable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>modifier</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>end of RealFFT group </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pATable</td><td>points to twiddle Coef A buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pBTable</td><td>points to twiddle Coef B buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</div>
</div>
<a class="anchor" id="a522656f688f96b46d74ecced3d641ba7"></a>
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<td class="memname">void arm_split_rifft_f32 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pATable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pBTable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>modifier</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pATable</td><td>points to twiddle Coef A buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pBTable</td><td>points to twiddle Coef B buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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Functions</h2></td></tr>
<tr class="memitem:a2f74435c5e0b3ea1ca2335e9119be7cc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__fast__f32_8c.html#a2f74435c5e0b3ea1ca2335e9119be7cc">stage_rfft_f32</a> (const <a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> *S, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *p, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pOut)</td></tr>
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<tr class="memitem:a7b48b01d0ec30d8d206d99d5dbf5f946"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__fast__f32_8c.html#a7b48b01d0ec30d8d206d99d5dbf5f946">merge_rfft_f32</a> (const <a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> *S, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *p, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pOut)</td></tr>
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<tr class="memitem:ga180d8b764d59cbb85d37a2d5f7cd9799"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RealFFT.html#ga180d8b764d59cbb85d37a2d5f7cd9799">arm_rfft_fast_f32</a> (<a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> *S, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *p, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pOut, uint8_t <a class="el" href="arm__fft__bin__example__f32_8c.html#a379ccb99013d369a41b49619083c16ef">ifftFlag</a>)</td></tr>
<tr class="memdesc:ga180d8b764d59cbb85d37a2d5f7cd9799"><td class="mdescLeft"> </td><td class="mdescRight">Processing function for the floating-point real FFT. <a href="group__RealFFT.html#ga180d8b764d59cbb85d37a2d5f7cd9799">More...</a><br/></td></tr>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void merge_rfft_f32 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> * </td>
<td class="paramname"><em>S</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>p</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pOut</em> </td>
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<td>)</td>
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<td class="memname">void stage_rfft_f32 </td>
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<td class="paramtype">const <a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> * </td>
<td class="paramname"><em>S</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>p</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pOut</em> </td>
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Functions</h2></td></tr>
<tr class="memitem:ga153c8faa97b7ab8b1aef75fe6ac1b3a2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RealFFT.html#ga153c8faa97b7ab8b1aef75fe6ac1b3a2">arm_rfft_32_fast_init_f32</a> (<a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> *S)</td></tr>
<tr class="memdesc:ga153c8faa97b7ab8b1aef75fe6ac1b3a2"><td class="mdescLeft"> </td><td class="mdescRight">Initialization function for the 32pt floating-point real FFT. <a href="group__RealFFT.html#ga153c8faa97b7ab8b1aef75fe6ac1b3a2">More...</a><br/></td></tr>
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<tr class="memitem:ga0f67de6a0e5d87011f35426112d2d91b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RealFFT.html#ga0f67de6a0e5d87011f35426112d2d91b">arm_rfft_64_fast_init_f32</a> (<a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> *S)</td></tr>
<tr class="memdesc:ga0f67de6a0e5d87011f35426112d2d91b"><td class="mdescLeft"> </td><td class="mdescRight">Initialization function for the 64pt floating-point real FFT. <a href="group__RealFFT.html#ga0f67de6a0e5d87011f35426112d2d91b">More...</a><br/></td></tr>
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<tr class="memdesc:gade8432f9318953234761e8e0f2c9e1d2"><td class="mdescLeft"> </td><td class="mdescRight">Initialization function for the 128pt floating-point real FFT. <a href="group__RealFFT.html#gade8432f9318953234761e8e0f2c9e1d2">More...</a><br/></td></tr>
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<tr class="memitem:ga678afbb042d942c3dd5a33877ef66492"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RealFFT.html#ga678afbb042d942c3dd5a33877ef66492">arm_rfft_256_fast_init_f32</a> (<a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a> *S)</td></tr>
<tr class="memdesc:ga678afbb042d942c3dd5a33877ef66492"><td class="mdescLeft"> </td><td class="mdescRight">Initialization function for the 256pt floating-point real FFT. <a href="group__RealFFT.html#ga678afbb042d942c3dd5a33877ef66492">More...</a><br/></td></tr>
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<tr class="memdesc:ga9a0e72918318f9d1c03973eab379e580"><td class="mdescLeft"> </td><td class="mdescRight">Initialization function for the 512pt floating-point real FFT. <a href="group__RealFFT.html#ga9a0e72918318f9d1c03973eab379e580">More...</a><br/></td></tr>
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<tr class="memdesc:ga71547c601079d55c2525204aa00ef9c2"><td class="mdescLeft"> </td><td class="mdescRight">Initialization function for the 1024pt floating-point real FFT. <a href="group__RealFFT.html#ga71547c601079d55c2525204aa00ef9c2">More...</a><br/></td></tr>
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<tr class="memdesc:gaad50a08bb8191e1a138b5f72a268727a"><td class="mdescLeft"> </td><td class="mdescRight">Initialization function for the 4096pt floating-point real FFT. <a href="group__RealFFT.html#gaad50a08bb8191e1a138b5f72a268727a">More...</a><br/></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:a8bc3e55eab484573a72adf768a59dcb1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__q15_8c.html#a8bc3e55eab484573a72adf768a59dcb1">arm_split_rfft_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pATable, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pBTable, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t modifier)</td></tr>
<tr class="memdesc:a8bc3e55eab484573a72adf768a59dcb1"><td class="mdescLeft"> </td><td class="mdescRight">Core Real FFT process. <a href="#a8bc3e55eab484573a72adf768a59dcb1">More...</a><br/></td></tr>
<tr class="separator:a8bc3e55eab484573a72adf768a59dcb1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa7c916585af6035f064a4f53d85de00a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__q15_8c.html#aa7c916585af6035f064a4f53d85de00a">arm_split_rifft_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pATable, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pBTable, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t modifier)</td></tr>
<tr class="memdesc:aa7c916585af6035f064a4f53d85de00a"><td class="mdescLeft"> </td><td class="mdescRight">Core Real IFFT process. <a href="#aa7c916585af6035f064a4f53d85de00a">More...</a><br/></td></tr>
<tr class="separator:aa7c916585af6035f064a4f53d85de00a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga00e615f5db21736ad5b27fb6146f3fc5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RealFFT.html#ga00e615f5db21736ad5b27fb6146f3fc5">arm_rfft_q15</a> (const <a class="el" href="structarm__rfft__instance__q15.html">arm_rfft_instance_q15</a> *S, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst)</td></tr>
<tr class="memdesc:ga00e615f5db21736ad5b27fb6146f3fc5"><td class="mdescLeft"> </td><td class="mdescRight">Processing function for the Q15 RFFT/RIFFT. <a href="group__RealFFT.html#ga00e615f5db21736ad5b27fb6146f3fc5">More...</a><br/></td></tr>
<tr class="separator:ga00e615f5db21736ad5b27fb6146f3fc5"><td class="memSeparator" colspan="2"> </td></tr>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void arm_split_rfft_q15 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pATable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pBTable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>modifier</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
<p>end of RealFFT group </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pATable</td><td>points to twiddle Coef A buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pBTable</td><td>points to twiddle Coef B buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<dl class="section user"><dt></dt><dd>The function implements a Real FFT </dd></dl>
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<td class="memname">void arm_split_rifft_q15 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pATable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pBTable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>modifier</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pATable</td><td>points to twiddle Coef A buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pBTable</td><td>points to twiddle Coef B buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<dl class="section user"><dt></dt><dd>The function implements a Real IFFT </dd></dl>
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Functions</h2></td></tr>
<tr class="memitem:a5a842f3fd929c352132b521cadcb5d22"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__q31_8c.html#a5a842f3fd929c352132b521cadcb5d22">arm_split_rfft_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pATable, const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pBTable, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst, uint32_t modifier)</td></tr>
<tr class="memdesc:a5a842f3fd929c352132b521cadcb5d22"><td class="mdescLeft"> </td><td class="mdescRight">Core Real FFT process. <a href="#a5a842f3fd929c352132b521cadcb5d22">More...</a><br/></td></tr>
<tr class="separator:a5a842f3fd929c352132b521cadcb5d22"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac8c8d151a7f08f1c6f1c0554f1bb51da"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__rfft__q31_8c.html#ac8c8d151a7f08f1c6f1c0554f1bb51da">arm_split_rifft_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pATable, const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pBTable, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst, uint32_t modifier)</td></tr>
<tr class="memdesc:ac8c8d151a7f08f1c6f1c0554f1bb51da"><td class="mdescLeft"> </td><td class="mdescRight">Core Real IFFT process. <a href="#ac8c8d151a7f08f1c6f1c0554f1bb51da">More...</a><br/></td></tr>
<tr class="separator:ac8c8d151a7f08f1c6f1c0554f1bb51da"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gabaeab5646aeea9844e6d42ca8c73fe3a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31</a> (const <a class="el" href="structarm__rfft__instance__q31.html">arm_rfft_instance_q31</a> *S, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst)</td></tr>
<tr class="memdesc:gabaeab5646aeea9844e6d42ca8c73fe3a"><td class="mdescLeft"> </td><td class="mdescRight">Processing function for the Q31 RFFT/RIFFT. <a href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">More...</a><br/></td></tr>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void arm_split_rfft_q31 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pATable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pBTable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>modifier</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>end of RealFFT group </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pATable</td><td>points to twiddle Coef A buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pBTable</td><td>points to twiddle Coef B buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</div>
</div>
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<td class="memname">void arm_split_rifft_q31 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pSrc</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>fftLen</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pATable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pBTable</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pDst</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>modifier</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pATable</td><td>points to twiddle Coef A buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pBTable</td><td>points to twiddle Coef B buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">modifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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<tr class="memitem:gaeb487e726e3755a7614a29c9d16a93e7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__RMS.html#gaeb487e726e3755a7614a29c9d16a93e7">arm_rms_f32</a> (const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pResult)</td></tr>
<tr class="memdesc:gaeb487e726e3755a7614a29c9d16a93e7"><td class="mdescLeft"> </td><td class="mdescRight">Root Mean Square of the elements of a floating-point vector. <a href="group__RMS.html#gaeb487e726e3755a7614a29c9d16a93e7">More...</a><br/></td></tr>
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<tr class="memdesc:ga8be796318d41c7cbb68f8f3c0b96020f"><td class="mdescLeft"> </td><td class="mdescRight">Root Mean Square of the elements of a Q15 vector. <a href="group__RMS.html#ga8be796318d41c7cbb68f8f3c0b96020f">More...</a><br/></td></tr>
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<tr class="memdesc:ga20586bc59cabbfc38a935c2448833dd2"><td class="mdescLeft"> </td><td class="mdescRight">Root Mean Square of the elements of a Q31 vector. <a href="group__RMS.html#ga20586bc59cabbfc38a935c2448833dd2">More...</a><br/></td></tr>
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<tr class="memitem:ga4663809f04249df5ea186ea09335e687"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicScale.html#ga4663809f04249df5ea186ea09335e687">arm_scale_q15</a> (const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> scaleFract, int8_t shift, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga4663809f04249df5ea186ea09335e687"><td class="mdescLeft"> </td><td class="mdescRight">Multiplies a Q15 vector by a scalar. <a href="group__BasicScale.html#ga4663809f04249df5ea186ea09335e687">More...</a><br/></td></tr>
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<tr class="memitem:ga8b2b6ea2e39ca464e8f2cfdd937c022b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicScale.html#ga8b2b6ea2e39ca464e8f2cfdd937c022b">arm_scale_q31</a> (const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> scaleFract, int8_t shift, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga8b2b6ea2e39ca464e8f2cfdd937c022b"><td class="mdescLeft"> </td><td class="mdescRight">Multiplies a Q31 vector by a scalar. <a href="group__BasicScale.html#ga8b2b6ea2e39ca464e8f2cfdd937c022b">More...</a><br/></td></tr>
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<tr class="memdesc:ga0d135086c6b813251b47a0d127b75eb8"><td class="mdescLeft"> </td><td class="mdescRight">Multiplies a Q7 vector by a scalar. <a href="group__BasicScale.html#ga0d135086c6b813251b47a0d127b75eb8">More...</a><br/></td></tr>
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<tr class="memitem:gab7a2f614c2fcee25cb8bae4c2a6bc3ab"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicShift.html#gab7a2f614c2fcee25cb8bae4c2a6bc3ab">arm_shift_q15</a> (const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, int8_t shiftBits, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:gab7a2f614c2fcee25cb8bae4c2a6bc3ab"><td class="mdescLeft"> </td><td class="mdescRight">Shifts the elements of a Q15 vector a specified number of bits. <a href="group__BasicShift.html#gab7a2f614c2fcee25cb8bae4c2a6bc3ab">More...</a><br/></td></tr>
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<tr class="memitem:gabc69335d1cf2eba1c469c8c8291f3589"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicShift.html#gabc69335d1cf2eba1c469c8c8291f3589">arm_shift_q31</a> (const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, int8_t shiftBits, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:gabc69335d1cf2eba1c469c8c8291f3589"><td class="mdescLeft"> </td><td class="mdescRight">Shifts the elements of a Q31 vector a specified number of bits. <a href="group__BasicShift.html#gabc69335d1cf2eba1c469c8c8291f3589">More...</a><br/></td></tr>
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<tr class="memdesc:ga87bbb3db84f2af6c38f4fc17cbecfd2e"><td class="mdescLeft"> </td><td class="mdescRight">Shifts the elements of a Q7 vector a specified number of bits. <a href="group__BasicShift.html#ga87bbb3db84f2af6c38f4fc17cbecfd2e">More...</a><br/></td></tr>
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<tr class="memitem:aeea2952e70a1040a6efa555564bbeeab"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a> (float *pRef, float *pTest, uint32_t buffSize)</td></tr>
<tr class="memdesc:aeea2952e70a1040a6efa555564bbeeab"><td class="mdescLeft"> </td><td class="mdescRight">Caluclation of SNR. <a href="#aeea2952e70a1040a6efa555564bbeeab">More...</a><br/></td></tr>
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<tr class="memitem:ac8209be1b8081e833c3ec2e85ad2255b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#ac8209be1b8081e833c3ec2e85ad2255b">arm_provide_guard_bits_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *input_buf, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, uint32_t guard_bits)</td></tr>
<tr class="memdesc:ac8209be1b8081e833c3ec2e85ad2255b"><td class="mdescLeft"> </td><td class="mdescRight">Provide guard bits for Input buffer. <a href="#ac8209be1b8081e833c3ec2e85ad2255b">More...</a><br/></td></tr>
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<tr class="memitem:a23f94b0fbfed6d620f38e26bc64cf2f8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a23f94b0fbfed6d620f38e26bc64cf2f8">arm_float_to_q12_20</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a23f94b0fbfed6d620f38e26bc64cf2f8"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed in q12.20 format. <a href="#a23f94b0fbfed6d620f38e26bc64cf2f8">More...</a><br/></td></tr>
<tr class="separator:a23f94b0fbfed6d620f38e26bc64cf2f8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a64d5207c035db13cddde479317dd131e"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a64d5207c035db13cddde479317dd131e">arm_compare_fixed_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pIn, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a64d5207c035db13cddde479317dd131e"><td class="mdescLeft"> </td><td class="mdescRight">Compare MATLAB Reference Output and ARM Test output. <a href="#a64d5207c035db13cddde479317dd131e">More...</a><br/></td></tr>
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<tr class="memitem:a32f9f3d19e53161382c5bd39e3df50fb"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a32f9f3d19e53161382c5bd39e3df50fb">arm_compare_fixed_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a32f9f3d19e53161382c5bd39e3df50fb"><td class="mdescLeft"> </td><td class="mdescRight">Compare MATLAB Reference Output and ARM Test output. <a href="#a32f9f3d19e53161382c5bd39e3df50fb">More...</a><br/></td></tr>
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<tr class="memitem:aead320f821f927000386d9d7d5ad6d27"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#aead320f821f927000386d9d7d5ad6d27">arm_provide_guard_bits_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *input_buf, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, uint32_t guard_bits)</td></tr>
<tr class="memdesc:aead320f821f927000386d9d7d5ad6d27"><td class="mdescLeft"> </td><td class="mdescRight">Provide guard bits for Input buffer. <a href="#aead320f821f927000386d9d7d5ad6d27">More...</a><br/></td></tr>
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<tr class="memitem:a392f7c2e7ab9bb58931c4efb56693029"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a392f7c2e7ab9bb58931c4efb56693029">arm_provide_guard_bits_q7</a> (<a class="el" href="arm__math_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *input_buf, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, uint32_t guard_bits)</td></tr>
<tr class="memdesc:a392f7c2e7ab9bb58931c4efb56693029"><td class="mdescLeft"> </td><td class="mdescRight">Provide guard bits for Input buffer. <a href="#a392f7c2e7ab9bb58931c4efb56693029">More...</a><br/></td></tr>
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<tr class="memitem:a60ff6e0b31a5e9105c7280797e457742"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a60ff6e0b31a5e9105c7280797e457742">arm_calc_guard_bits</a> (uint32_t num_adds)</td></tr>
<tr class="memdesc:a60ff6e0b31a5e9105c7280797e457742"><td class="mdescLeft"> </td><td class="mdescRight">Caluclates number of guard bits. <a href="#a60ff6e0b31a5e9105c7280797e457742">More...</a><br/></td></tr>
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<tr class="memitem:a13580a6ff7a8a68146de727bdf8fba88"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a13580a6ff7a8a68146de727bdf8fba88">arm_apply_guard_bits</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pIn, uint32_t numSamples, uint32_t guard_bits)</td></tr>
<tr class="memdesc:a13580a6ff7a8a68146de727bdf8fba88"><td class="mdescLeft"> </td><td class="mdescRight">Apply guard bits to buffer. <a href="#a13580a6ff7a8a68146de727bdf8fba88">More...</a><br/></td></tr>
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<tr class="memitem:ace1e1f7b72573d1934782ec999a04f99"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#ace1e1f7b72573d1934782ec999a04f99">arm_calc_2pow</a> (uint32_t numShifts)</td></tr>
<tr class="memdesc:ace1e1f7b72573d1934782ec999a04f99"><td class="mdescLeft"> </td><td class="mdescRight">Calculates pow(2, numShifts) <a href="#ace1e1f7b72573d1934782ec999a04f99">More...</a><br/></td></tr>
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<tr class="memitem:a23cdb5202efd9233f4e92b5f22287eac"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a23cdb5202efd9233f4e92b5f22287eac">arm_float_to_q14</a> (float *pIn, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a23cdb5202efd9233f4e92b5f22287eac"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q14. <a href="#a23cdb5202efd9233f4e92b5f22287eac">More...</a><br/></td></tr>
<tr class="separator:a23cdb5202efd9233f4e92b5f22287eac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a16764fdbc174a79f04b07032cf902079"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a16764fdbc174a79f04b07032cf902079">arm_float_to_q30</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a16764fdbc174a79f04b07032cf902079"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q30 format. <a href="#a16764fdbc174a79f04b07032cf902079">More...</a><br/></td></tr>
<tr class="separator:a16764fdbc174a79f04b07032cf902079"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a098c587b93469a7a6bcc521d42fdf6f9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#a098c587b93469a7a6bcc521d42fdf6f9">arm_float_to_q29</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a098c587b93469a7a6bcc521d42fdf6f9"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q30 format. <a href="#a098c587b93469a7a6bcc521d42fdf6f9">More...</a><br/></td></tr>
<tr class="separator:a098c587b93469a7a6bcc521d42fdf6f9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa1049b3adb14331612bb762237391625"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#aa1049b3adb14331612bb762237391625">arm_float_to_q28</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:aa1049b3adb14331612bb762237391625"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q28 format. <a href="#aa1049b3adb14331612bb762237391625">More...</a><br/></td></tr>
<tr class="separator:aa1049b3adb14331612bb762237391625"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab9768d92bb94894d8294047bdf76a16a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8c.html#ab9768d92bb94894d8294047bdf76a16a">arm_clip_f32</a> (float *pIn, uint32_t numSamples)</td></tr>
<tr class="memdesc:ab9768d92bb94894d8294047bdf76a16a"><td class="mdescLeft"> </td><td class="mdescRight">Clip the float values to +/- 1. <a href="#ab9768d92bb94894d8294047bdf76a16a">More...</a><br/></td></tr>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void arm_apply_guard_bits </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pIn</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">uint32_t </td>
<td class="paramname"><em>guard_bits</em> </td>
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<td>)</td>
<td></td><td></td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">guard_bits</td><td>guard bits </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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<td class="memname">uint32_t arm_calc_2pow </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numShifts</em></td><td>)</td>
<td></td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">numShifts</td><td>number of shifts </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>pow(2, numShifts) </dd></dl>
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<td class="memname">uint32_t arm_calc_guard_bits </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>num_adds</em></td><td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">num_adds</td><td>number of additions </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>guard bits The function Caluclates the number of guard bits depending on the numtaps </dd></dl>
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<td class="memname">void arm_clip_f32 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">pIn</td><td>input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
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<td class="memname">uint32_t arm_compare_fixed_q15 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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</table>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>Pointer to Ref buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pOut</td><td>Pointer to Test buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>maximum difference </dd></dl>
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<td class="memname">uint32_t arm_compare_fixed_q31 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>Pointer to Ref buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pOut</td><td>Pointer to Test buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>maximum difference </dd></dl>
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<td class="memname">void arm_float_to_q12_20 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
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<td></td>
<td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to outputbuffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the input buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point(q12.20) values </dd></dl>
</div>
</div>
<a class="anchor" id="a23cdb5202efd9233f4e92b5f22287eac"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_float_to_q14 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
<a class="anchor" id="aa1049b3adb14331612bb762237391625"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_float_to_q28 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
<a class="anchor" id="a098c587b93469a7a6bcc521d42fdf6f9"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_float_to_q29 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
<a class="anchor" id="a16764fdbc174a79f04b07032cf902079"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_float_to_q30 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
<a class="anchor" id="ac8209be1b8081e833c3ec2e85ad2255b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_provide_guard_bits_q15 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>input_buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>blockSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>guard_bits</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">input_buf</td><td>Pointer to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>block Size </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">guard_bits</td><td>guard bits </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function Provides the guard bits for the buffer to avoid overflow </dd></dl>
</div>
</div>
<a class="anchor" id="aead320f821f927000386d9d7d5ad6d27"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_provide_guard_bits_q31 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>input_buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>blockSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>guard_bits</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">input_buf</td><td>Pointer to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>block Size </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">guard_bits</td><td>guard bits </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function Provides the guard bits for the buffer to avoid overflow </dd></dl>
</div>
</div>
<a class="anchor" id="a392f7c2e7ab9bb58931c4efb56693029"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_provide_guard_bits_q7 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> * </td>
<td class="paramname"><em>input_buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>blockSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>guard_bits</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">input_buf</td><td>Pointer to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>block Size </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">guard_bits</td><td>guard bits </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function Provides the guard bits for the buffer to avoid overflow </dd></dl>
</div>
</div>
<a class="anchor" id="aeea2952e70a1040a6efa555564bbeeab"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">float arm_snr_f32 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pRef</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pTest</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>buffSize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pRef</td><td>Pointer to the reference buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pTest</td><td>Pointer to the test buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">buffSize</td><td>total number of samples </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>SNR The function Caluclates signal to noise ratio for the reference output and test output </dd></dl>
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<a href="#func-members">Functions</a> </div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:aeea2952e70a1040a6efa555564bbeeab"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a> (float *pRef, float *pTest, uint32_t buffSize)</td></tr>
<tr class="memdesc:aeea2952e70a1040a6efa555564bbeeab"><td class="mdescLeft"> </td><td class="mdescRight">Caluclation of SNR. <a href="#aeea2952e70a1040a6efa555564bbeeab">More...</a><br/></td></tr>
<tr class="separator:aeea2952e70a1040a6efa555564bbeeab"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a23f94b0fbfed6d620f38e26bc64cf2f8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a23f94b0fbfed6d620f38e26bc64cf2f8">arm_float_to_q12_20</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a23f94b0fbfed6d620f38e26bc64cf2f8"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed in q12.20 format. <a href="#a23f94b0fbfed6d620f38e26bc64cf2f8">More...</a><br/></td></tr>
<tr class="separator:a23f94b0fbfed6d620f38e26bc64cf2f8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac8209be1b8081e833c3ec2e85ad2255b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#ac8209be1b8081e833c3ec2e85ad2255b">arm_provide_guard_bits_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *input_buf, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, uint32_t guard_bits)</td></tr>
<tr class="memdesc:ac8209be1b8081e833c3ec2e85ad2255b"><td class="mdescLeft"> </td><td class="mdescRight">Provide guard bits for Input buffer. <a href="#ac8209be1b8081e833c3ec2e85ad2255b">More...</a><br/></td></tr>
<tr class="separator:ac8209be1b8081e833c3ec2e85ad2255b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aead320f821f927000386d9d7d5ad6d27"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#aead320f821f927000386d9d7d5ad6d27">arm_provide_guard_bits_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *input_buf, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, uint32_t guard_bits)</td></tr>
<tr class="memdesc:aead320f821f927000386d9d7d5ad6d27"><td class="mdescLeft"> </td><td class="mdescRight">Provide guard bits for Input buffer. <a href="#aead320f821f927000386d9d7d5ad6d27">More...</a><br/></td></tr>
<tr class="separator:aead320f821f927000386d9d7d5ad6d27"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a23cdb5202efd9233f4e92b5f22287eac"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a23cdb5202efd9233f4e92b5f22287eac">arm_float_to_q14</a> (float *pIn, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a23cdb5202efd9233f4e92b5f22287eac"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q14. <a href="#a23cdb5202efd9233f4e92b5f22287eac">More...</a><br/></td></tr>
<tr class="separator:a23cdb5202efd9233f4e92b5f22287eac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a098c587b93469a7a6bcc521d42fdf6f9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a098c587b93469a7a6bcc521d42fdf6f9">arm_float_to_q29</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a098c587b93469a7a6bcc521d42fdf6f9"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q30 format. <a href="#a098c587b93469a7a6bcc521d42fdf6f9">More...</a><br/></td></tr>
<tr class="separator:a098c587b93469a7a6bcc521d42fdf6f9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa1049b3adb14331612bb762237391625"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#aa1049b3adb14331612bb762237391625">arm_float_to_q28</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:aa1049b3adb14331612bb762237391625"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q28 format. <a href="#aa1049b3adb14331612bb762237391625">More...</a><br/></td></tr>
<tr class="separator:aa1049b3adb14331612bb762237391625"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a16764fdbc174a79f04b07032cf902079"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a16764fdbc174a79f04b07032cf902079">arm_float_to_q30</a> (float *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a16764fdbc174a79f04b07032cf902079"><td class="mdescLeft"> </td><td class="mdescRight">Converts float to fixed q30 format. <a href="#a16764fdbc174a79f04b07032cf902079">More...</a><br/></td></tr>
<tr class="separator:a16764fdbc174a79f04b07032cf902079"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab9768d92bb94894d8294047bdf76a16a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#ab9768d92bb94894d8294047bdf76a16a">arm_clip_f32</a> (float *pIn, uint32_t numSamples)</td></tr>
<tr class="memdesc:ab9768d92bb94894d8294047bdf76a16a"><td class="mdescLeft"> </td><td class="mdescRight">Clip the float values to +/- 1. <a href="#ab9768d92bb94894d8294047bdf76a16a">More...</a><br/></td></tr>
<tr class="separator:ab9768d92bb94894d8294047bdf76a16a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a60ff6e0b31a5e9105c7280797e457742"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a60ff6e0b31a5e9105c7280797e457742">arm_calc_guard_bits</a> (uint32_t num_adds)</td></tr>
<tr class="memdesc:a60ff6e0b31a5e9105c7280797e457742"><td class="mdescLeft"> </td><td class="mdescRight">Caluclates number of guard bits. <a href="#a60ff6e0b31a5e9105c7280797e457742">More...</a><br/></td></tr>
<tr class="separator:a60ff6e0b31a5e9105c7280797e457742"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a13580a6ff7a8a68146de727bdf8fba88"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a13580a6ff7a8a68146de727bdf8fba88">arm_apply_guard_bits</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pIn, uint32_t numSamples, uint32_t guard_bits)</td></tr>
<tr class="memdesc:a13580a6ff7a8a68146de727bdf8fba88"><td class="mdescLeft"> </td><td class="mdescRight">Apply guard bits to buffer. <a href="#a13580a6ff7a8a68146de727bdf8fba88">More...</a><br/></td></tr>
<tr class="separator:a13580a6ff7a8a68146de727bdf8fba88"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a64d5207c035db13cddde479317dd131e"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a64d5207c035db13cddde479317dd131e">arm_compare_fixed_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pIn, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a64d5207c035db13cddde479317dd131e"><td class="mdescLeft"> </td><td class="mdescRight">Compare MATLAB Reference Output and ARM Test output. <a href="#a64d5207c035db13cddde479317dd131e">More...</a><br/></td></tr>
<tr class="separator:a64d5207c035db13cddde479317dd131e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a32f9f3d19e53161382c5bd39e3df50fb"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a32f9f3d19e53161382c5bd39e3df50fb">arm_compare_fixed_q31</a> (<a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pIn, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pOut, uint32_t numSamples)</td></tr>
<tr class="memdesc:a32f9f3d19e53161382c5bd39e3df50fb"><td class="mdescLeft"> </td><td class="mdescRight">Compare MATLAB Reference Output and ARM Test output. <a href="#a32f9f3d19e53161382c5bd39e3df50fb">More...</a><br/></td></tr>
<tr class="separator:a32f9f3d19e53161382c5bd39e3df50fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7c94faac575a175e824d5f9879c97c68"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example_2math__helper_8h.html#a7c94faac575a175e824d5f9879c97c68">arm_calc_2pow</a> (uint32_t guard_bits)</td></tr>
<tr class="memdesc:a7c94faac575a175e824d5f9879c97c68"><td class="mdescLeft"> </td><td class="mdescRight">Calculates pow(2, numShifts) <a href="#a7c94faac575a175e824d5f9879c97c68">More...</a><br/></td></tr>
<tr class="separator:a7c94faac575a175e824d5f9879c97c68"><td class="memSeparator" colspan="2"> </td></tr>
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<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a13580a6ff7a8a68146de727bdf8fba88"></a>
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<td class="memname">void arm_apply_guard_bits </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>guard_bits</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">guard_bits</td><td>guard bits </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</div>
</div>
<a class="anchor" id="a7c94faac575a175e824d5f9879c97c68"></a>
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<td class="memname">uint32_t arm_calc_2pow </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numShifts</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">numShifts</td><td>number of shifts </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>pow(2, numShifts) </dd></dl>
</div>
</div>
<a class="anchor" id="a60ff6e0b31a5e9105c7280797e457742"></a>
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<td class="memname">uint32_t arm_calc_guard_bits </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>num_adds</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">num_adds</td><td>number of additions </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>guard bits The function Caluclates the number of guard bits depending on the numtaps </dd></dl>
</div>
</div>
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<td class="memname">void arm_clip_f32 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">pIn</td><td>input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
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<td class="memname">uint32_t arm_compare_fixed_q15 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>Pointer to Ref buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pOut</td><td>Pointer to Test buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>maximum difference </dd></dl>
</div>
</div>
<a class="anchor" id="a32f9f3d19e53161382c5bd39e3df50fb"></a>
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<td class="memname">uint32_t arm_compare_fixed_q31 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>Pointer to Ref buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pOut</td><td>Pointer to Test buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>maximum difference </dd></dl>
</div>
</div>
<a class="anchor" id="a23f94b0fbfed6d620f38e26bc64cf2f8"></a>
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<td class="memname">void arm_float_to_q12_20 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to outputbuffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the input buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point(q12.20) values </dd></dl>
</div>
</div>
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<td class="memname">void arm_float_to_q14 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
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<td class="memname">void arm_float_to_q28 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
<a class="anchor" id="a098c587b93469a7a6bcc521d42fdf6f9"></a>
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<div class="memproto">
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<td class="memname">void arm_float_to_q29 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
<a class="anchor" id="a16764fdbc174a79f04b07032cf902079"></a>
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<td class="memname">void arm_float_to_q30 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pIn</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>pOut</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>numSamples</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pIn</td><td>pointer to input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pOut</td><td>pointer to output buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">numSamples</td><td>number of samples in the buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function converts floating point values to fixed point values </dd></dl>
</div>
</div>
<a class="anchor" id="ac8209be1b8081e833c3ec2e85ad2255b"></a>
<div class="memitem">
<div class="memproto">
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<td class="memname">void arm_provide_guard_bits_q15 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
<td class="paramname"><em>input_buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>blockSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>guard_bits</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">input_buf</td><td>Pointer to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>block Size </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">guard_bits</td><td>guard bits </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function Provides the guard bits for the buffer to avoid overflow </dd></dl>
</div>
</div>
<a class="anchor" id="aead320f821f927000386d9d7d5ad6d27"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void arm_provide_guard_bits_q31 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
<td class="paramname"><em>input_buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>blockSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>guard_bits</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">input_buf</td><td>Pointer to input buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>block Size </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">guard_bits</td><td>guard bits </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none The function Provides the guard bits for the buffer to avoid overflow </dd></dl>
</div>
</div>
<a class="anchor" id="aeea2952e70a1040a6efa555564bbeeab"></a>
<div class="memitem">
<div class="memproto">
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<tr>
<td class="memname">float arm_snr_f32 </td>
<td>(</td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pRef</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">float * </td>
<td class="paramname"><em>pTest</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>buffSize</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pRef</td><td>Pointer to the reference buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pTest</td><td>Pointer to the test buffer </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">buffSize</td><td>total number of samples </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>SNR The function Caluclates signal to noise ratio for the reference output and test output </dd></dl>
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Macros</h2></td></tr>
<tr class="memitem:abc004a7fade488e72310fd96c0a101dc"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a></td></tr>
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<tr class="memitem:ac1d8ddb4f9a957eef3ad13d44de4d804"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a></td></tr>
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<tr class="memitem:afcf795f5a96fd55561abe69f56224630"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a></td></tr>
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<tr class="memitem:a6d3c6a4484dcaac72fbfe5100c39b9b6"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a6d3c6a4484dcaac72fbfe5100c39b9b6">DELTA_ERROR</a></td></tr>
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<tr class="memitem:a9156349d99957ded15d8aa3aa11723de"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a9156349d99957ded15d8aa3aa11723de">DELTA_COEFF</a></td></tr>
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<tr class="memitem:a09bc9e6a44f0291cfcf578f2efcddfab"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a09bc9e6a44f0291cfcf578f2efcddfab">MU</a></td></tr>
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<tr class="memitem:a4b6b859e1e3f6021a360390be287ca2c"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a4b6b859e1e3f6021a360390be287ca2c">NUMFRAMES</a></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ac786d43cbc17bb09738447034ff8e22e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#ac786d43cbc17bb09738447034ff8e22e">test_signal_converge_example</a> (void)</td></tr>
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<tr class="memitem:a8f521e839d4fad24a4f12a18dfeae5d4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a8f521e839d4fad24a4f12a18dfeae5d4">test_signal_converge</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *<a class="el" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memitem:afd2975c4763ec935771e6f63bfe7758b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#afd2975c4763ec935771e6f63bfe7758b">getinput</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *input, uint32_t fr_cnt, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memitem:a52d2cba30e6946c95578be946ac12a65"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a> (void)</td></tr>
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Variables</h2></td></tr>
<tr class="memitem:a358ec4e79689e6d3787b89fe78bdb772"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a358ec4e79689e6d3787b89fe78bdb772">firStateF32</a> [<a class="el" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>+<a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>]</td></tr>
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<tr class="memitem:a652d3507a776117b4860b3e18f2d2d64"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structarm__fir__instance__f32.html">arm_fir_instance_f32</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a652d3507a776117b4860b3e18f2d2d64">LPF_instance</a></td></tr>
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<tr class="memitem:aad7c60c30c5af397bb75e603f250f9d3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a> [32]</td></tr>
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<tr class="memitem:aede8780f021b7f5c33df0c5ee2183ee6"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#aede8780f021b7f5c33df0c5ee2183ee6">FIRCoeff_f32</a> [32]</td></tr>
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<tr class="memitem:a16e759789fbc05f878863f009066c8ea"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a> [<a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>]</td></tr>
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<tr class="memitem:ae6bcc00ea126543ab33d6174549eacda"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a> [<a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>]</td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<td class="memname">#define BLOCKSIZE</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a2">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">#define DELTA_COEFF</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a37">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">#define DELTA_ERROR</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a34">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">#define MU</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a24">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">#define NUMFRAMES</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a26">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">#define NUMTAPS</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a1">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">#define TEST_LENGTH_SAMPLES</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a7">arm_signal_converge_example_f32.c</a>.</dd>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void getinput </td>
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<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
<td class="paramname"><em>input</em>, </td>
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<td class="paramname"><em>fr_cnt</em>, </td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a14">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">int32_t main </td>
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<td class="paramtype">void </td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a21">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> test_signal_converge </td>
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<td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
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<td class="paramtype">uint32_t </td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a11">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> test_signal_converge_example </td>
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<td class="paramtype">void </td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a10">arm_signal_converge_example_f32.c</a>.</dd>
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<h2 class="groupheader">Variable Documentation</h2>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> err_signal[<a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a12">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> errOutput[<a class="el" href="arm__signal__converge__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a6">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> FIRCoeff_f32[32]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a17">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> firStateF32[<a class="el" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>+<a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_fir_example_f32_8c-example.html#a4">arm_fir_example_f32.c</a>, and <a class="el" href="arm_signal_converge_example_f32_8c-example.html#a0">arm_signal_converge_example_f32.c</a>.</dd>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a9">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> lmsNormCoeff_f32[32]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a16">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> lmsStateF32[<a class="el" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>+<a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a5">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="structarm__fir__instance__f32.html">arm_fir_instance_f32</a> LPF_instance</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a4">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> testInput_f32[<a class="el" href="arm__signal__converge__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a15">arm_signal_converge_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> wire1[<a class="el" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_signal_converge_example_f32_8c-example.html#a18">arm_signal_converge_example_f32.c</a>.</dd>
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<tr class="memitem:af8a1d2ed31f7c9a00fec46a798edb61b"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__sin__cos__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a></td></tr>
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<tr class="memitem:a52d2cba30e6946c95578be946ac12a65"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__sin__cos__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a> (void)</td></tr>
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<tr class="memitem:a8b3b7113988efd5bf11a247d07ae39a1"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__sin__cos__example__f32_8c.html#a8b3b7113988efd5bf11a247d07ae39a1">testInput_f32</a> [<a class="el" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]</td></tr>
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<tr class="memitem:a8bcb5c1f75ed5f1737e435f0de1850a3"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__sin__cos__example__f32_8c.html#a8bcb5c1f75ed5f1737e435f0de1850a3">testRefOutput_f32</a></td></tr>
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<tr class="memitem:ab6558f40a619c2502fbc24c880fd4fb0"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__sin__cos__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a></td></tr>
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<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<tr class="memdesc:ga4420d45c37d58c310ef9ae1b5fe58020"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point sin_cos function. <a href="group__SinCos.html#ga4420d45c37d58c310ef9ae1b5fe58020">More...</a><br/></td></tr>
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<tr class="memitem:ga287b6ce703636c7e8cb9833b290ae4ce"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__STD.html#ga287b6ce703636c7e8cb9833b290ae4ce">arm_std_f32</a> (const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pResult)</td></tr>
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<tr class="memitem:ga4179a8150b161ce2c3d734d8cb19cebe"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__STD.html#ga4179a8150b161ce2c3d734d8cb19cebe">arm_std_q15</a> (const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pResult)</td></tr>
<tr class="memdesc:ga4179a8150b161ce2c3d734d8cb19cebe"><td class="mdescLeft"> </td><td class="mdescRight">Standard deviation of the elements of a Q15 vector. <a href="group__STD.html#ga4179a8150b161ce2c3d734d8cb19cebe">More...</a><br/></td></tr>
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<tr class="memdesc:ga76b8b2aec34269c6de0b090cab00fb33"><td class="mdescLeft"> </td><td class="mdescRight">Floating-point vector subtraction. <a href="group__BasicSub.html#ga76b8b2aec34269c6de0b090cab00fb33">More...</a><br/></td></tr>
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<tr class="memdesc:ga33a096c2860eca18bbc4e6966409064f"><td class="mdescLeft"> </td><td class="mdescRight">Q15 vector subtraction. <a href="group__BasicSub.html#ga33a096c2860eca18bbc4e6966409064f">More...</a><br/></td></tr>
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<tr class="memdesc:ga913159f71589b56dbfb03ddc1210a59c"><td class="mdescLeft"> </td><td class="mdescRight">Q31 vector subtraction. <a href="group__BasicSub.html#ga913159f71589b56dbfb03ddc1210a59c">More...</a><br/></td></tr>
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<tr class="memitem:ga162990b82a18231c4e606ba0e6584c7e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicSub.html#ga162990b82a18231c4e606ba0e6584c7e">arm_sub_q7</a> (const <a class="el" href="arm__math_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pSrcA, const <a class="el" href="arm__math_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pSrcB, <a class="el" href="arm__math_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
<tr class="memdesc:ga162990b82a18231c4e606ba0e6584c7e"><td class="mdescLeft"> </td><td class="mdescRight">Q7 vector subtraction. <a href="group__BasicSub.html#ga162990b82a18231c4e606ba0e6584c7e">More...</a><br/></td></tr>
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<tr class="memitem:gaae455544f0c8ac92469a1e25d3906515"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__variance.html#gaae455544f0c8ac92469a1e25d3906515">arm_var_f32</a> (const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pResult)</td></tr>
<tr class="memdesc:gaae455544f0c8ac92469a1e25d3906515"><td class="mdescLeft"> </td><td class="mdescRight">Variance of the elements of a floating-point vector. <a href="group__variance.html#gaae455544f0c8ac92469a1e25d3906515">More...</a><br/></td></tr>
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<tr class="memdesc:gaef3ebc6401209c3f93749e08d341ab48"><td class="mdescLeft"> </td><td class="mdescRight">Variance of the elements of a Q15 vector. <a href="group__variance.html#gaef3ebc6401209c3f93749e08d341ab48">More...</a><br/></td></tr>
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<tr class="memitem:ga87a07c87c1d85104de0ea4a3d017454c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__variance.html#ga87a07c87c1d85104de0ea4a3d017454c">arm_var_q31</a> (const <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, <a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pResult)</td></tr>
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<tr class="memitem:acc43b372d92d5027b9f9cac782c8b3c7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__variance__example__f32_8c.html#acc43b372d92d5027b9f9cac782c8b3c7">wire1</a> [<a class="el" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]</td></tr>
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<tr class="memitem:a41a9afab5be5ccd2e6f618b83102f0d1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__variance__example__f32_8c.html#a41a9afab5be5ccd2e6f618b83102f0d1">wire2</a> [<a class="el" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]</td></tr>
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<tr class="memitem:af61f43ad332a2322e43ced590b6d9768"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__variance__example__f32_8c.html#af61f43ad332a2322e43ced590b6d9768">wire3</a> [<a class="el" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]</td></tr>
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<tr class="memitem:a9170ec9e681e2b519fe9c46a30455841"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__variance__example__f32_8c.html#a9170ec9e681e2b519fe9c46a30455841">testInput_f32</a> [32]</td></tr>
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<tr class="memitem:ab6558f40a619c2502fbc24c880fd4fb0"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a></td></tr>
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<tr class="memitem:a26cbbfe2a7905669e8440159465050df"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__variance__example__f32_8c.html#a26cbbfe2a7905669e8440159465050df">refVarianceOut</a></td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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<td class="memname">#define DELTA</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a16">arm_variance_example_f32.c</a>.</dd>
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<td class="memname">#define MAX_BLOCKSIZE</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a1">arm_variance_example_f32.c</a>.</dd>
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<td class="memname">int32_t main </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a7">arm_variance_example_f32.c</a>.</dd>
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<h2 class="groupheader">Variable Documentation</h2>
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<td class="memname">uint32_t blockSize</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a5">arm_variance_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> refVarianceOut</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a6">arm_variance_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> testInput_f32[32]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a4">arm_variance_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> wire1[<a class="el" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a0">arm_variance_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> wire2[<a class="el" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]</td>
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<dl><dt><b>Examples: </b></dt><dd><a class="el" href="arm_variance_example_f32_8c-example.html#a2">arm_variance_example_f32.c</a>.</dd>
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<td class="memname"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> wire3[<a class="el" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]</td>
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<div class="title">arm_class_marks_example_f32.c</div> </div>
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<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_class_marks_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code to calculate Minimum, Maximum</span></div>
<div class="line"><span class="comment">* Mean, std and variance of marks obtained in a class</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment">* -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define USE_STATIC_INIT</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Global defines</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define TEST_LENGTH_SAMPLES (20*4)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** List of Marks scored by 20 students for 4 subjects</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a0153222efa82b7f1a0ea3835921bf921">testMarks_f32</a>[<a name="a1"></a><a class="code" href="arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>] =</div>
<div class="line">{</div>
<div class="line"> 42.000000, 37.000000, 81.000000, 28.000000,</div>
<div class="line"> 83.000000, 72.000000, 36.000000, 38.000000,</div>
<div class="line"> 32.000000, 51.000000, 63.000000, 64.000000,</div>
<div class="line"> 97.000000, 82.000000, 95.000000, 90.000000,</div>
<div class="line"> 66.000000, 51.000000, 54.000000, 42.000000,</div>
<div class="line"> 67.000000, 56.000000, 45.000000, 57.000000,</div>
<div class="line"> 67.000000, 69.000000, 35.000000, 52.000000,</div>
<div class="line"> 29.000000, 81.000000, 58.000000, 47.000000,</div>
<div class="line"> 38.000000, 76.000000, 100.000000, 29.000000,</div>
<div class="line"> 33.000000, 47.000000, 29.000000, 50.000000,</div>
<div class="line"> 34.000000, 41.000000, 61.000000, 46.000000,</div>
<div class="line"> 52.000000, 50.000000, 48.000000, 36.000000,</div>
<div class="line"> 47.000000, 55.000000, 44.000000, 40.000000,</div>
<div class="line"> 100.000000, 94.000000, 84.000000, 37.000000,</div>
<div class="line"> 32.000000, 71.000000, 47.000000, 77.000000,</div>
<div class="line"> 31.000000, 50.000000, 49.000000, 35.000000,</div>
<div class="line"> 63.000000, 67.000000, 40.000000, 31.000000,</div>
<div class="line"> 29.000000, 68.000000, 61.000000, 38.000000,</div>
<div class="line"> 31.000000, 28.000000, 28.000000, 76.000000,</div>
<div class="line"> 55.000000, 33.000000, 29.000000, 39.000000</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Number of subjects X 1</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a993b9b2a1faf43b319c1c6d58b26e7a1">testUnity_f32</a>[4] =</div>
<div class="line">{</div>
<div class="line"> 1.000, 1.000, 1.000, 1.000</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** f32 Output buffer</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[<a class="code" href="arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Global defines</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------- */</span></div>
<div class="line"><span class="preprocessor">#define NUMSTUDENTS 20</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define NUMSUBJECTS 4</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Global variables</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> uint32_t <a name="a4"></a><a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a> = 20;</div>
<div class="line"> uint32_t <a name="a5"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a3d01884f63bcb694226ca7c24980757a">numSubjects</a> = 4;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__class__marks__example__f32_8c.html#aad32888fa966b3d9db9c31bcbba9d9ef">max_marks</a>, <a name="a7"></a><a class="code" href="arm__class__marks__example__f32_8c.html#abb7687fa07ec54d8e792cfcbfe2ca809">min_marks</a>, <a name="a8"></a><a class="code" href="arm__class__marks__example__f32_8c.html#acc9290716b3c97381ce52d14b4b01681">mean</a>, <a name="a9"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a150b0cf729b51893379f5b5548d4f989">std</a>, <a name="a10"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a3bd39c4335d84be071cc1eaa9b0a8642">var</a>;</div>
<div class="line"> uint32_t <a name="a11"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a798cf43a3725d7df2fcaf3f328969f53">student_num</a>;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Main f32 test function. It returns maximum marks secured and student number</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a12"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>()</div>
<div class="line">{</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#ifndef USE_STATIC_INIT</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"> <a name="_a13"></a><a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> srcA;</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> srcB;</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> dstC;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Input and output matrices initializations */</span></div>
<div class="line"> <a name="a14"></a><a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&srcA, <a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, <a class="code" href="arm__class__marks__example__f32_8c.html#a3d01884f63bcb694226ca7c24980757a">numSubjects</a>, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__class__marks__example__f32_8c.html#a0153222efa82b7f1a0ea3835921bf921">testMarks_f32</a>);</div>
<div class="line"> <a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&srcB, <a class="code" href="arm__class__marks__example__f32_8c.html#a3d01884f63bcb694226ca7c24980757a">numSubjects</a>, 1, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__class__marks__example__f32_8c.html#a993b9b2a1faf43b319c1c6d58b26e7a1">testUnity_f32</a>);</div>
<div class="line"> <a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&dstC, <a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, 1, <a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>);</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#else</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"> <span class="comment">/* Static Initializations of Input and output matrix sizes and array */</span></div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> srcA = {<a name="a15"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a9d89ac0707e7c9363544986d47a70bd3">NUMSTUDENTS</a>, <a name="a16"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a7b02f9b34bf2cd4d12633f5bf30771ec">NUMSUBJECTS</a>, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__class__marks__example__f32_8c.html#a0153222efa82b7f1a0ea3835921bf921">testMarks_f32</a>};</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> srcB = {<a class="code" href="arm__class__marks__example__f32_8c.html#a7b02f9b34bf2cd4d12633f5bf30771ec">NUMSUBJECTS</a>, 1, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__class__marks__example__f32_8c.html#a993b9b2a1faf43b319c1c6d58b26e7a1">testUnity_f32</a>};</div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> dstC = {<a class="code" href="arm__class__marks__example__f32_8c.html#a9d89ac0707e7c9363544986d47a70bd3">NUMSTUDENTS</a>, 1, <a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>};</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> *Call the Matrix multiplication process function</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a17"></a><a class="code" href="group__MatrixMult.html#ga917bf0270310c1d3f0eda1fc7c0026a0">arm_mat_mult_f32</a>(&srcA, &srcB, &dstC);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Max function to calculate max marks among numStudents</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a18"></a><a class="code" href="group__Max.html#gad1eabd31544fe59c414d9ce5bd0cc151">arm_max_f32</a>(<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#aad32888fa966b3d9db9c31bcbba9d9ef">max_marks</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#a798cf43a3725d7df2fcaf3f328969f53">student_num</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Min function to calculate min marks among numStudents</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a19"></a><a class="code" href="group__Min.html#ga514e2c920c432e1a3df2cb03f01d2797">arm_min_f32</a>(<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#abb7687fa07ec54d8e792cfcbfe2ca809">min_marks</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#a798cf43a3725d7df2fcaf3f328969f53">student_num</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Mean function to calculate mean</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a20"></a><a class="code" href="group__mean.html#gae4fb7698771d7c24f536ed24347c1488">arm_mean_f32</a>(<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#acc9290716b3c97381ce52d14b4b01681">mean</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the std function to calculate standard deviation</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a21"></a><a class="code" href="group__STD.html#ga287b6ce703636c7e8cb9833b290ae4ce">arm_std_f32</a>(<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#a150b0cf729b51893379f5b5548d4f989">std</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the var function to calculate variance</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <a name="a22"></a><a class="code" href="group__variance.html#gaae455544f0c8ac92469a1e25d3906515">arm_var_f32</a>(<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="arm__class__marks__example__f32_8c.html#ab3b66d06b4af1af4ea2740d0ccf4e7bd">numStudents</a>, &<a class="code" href="arm__class__marks__example__f32_8c.html#a3bd39c4335d84be071cc1eaa9b0a8642">var</a>);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
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<div class="title">arm_convolution_example_f32.c</div> </div>
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<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_convolution_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code demonstrating Convolution of two input signals using fft.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
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<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
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<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment">* -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "math_helper.h"</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Defines each of the tests performed</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="preprocessor">#define MAX_BLOCKSIZE 128</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA (0.000001f)</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SNR_THRESHOLD 90</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare I/O buffers</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__convolution__example__f32_8c.html#aed74eacd4b96cc7f71b64d18f2e95705">Ak</a>[<a name="a1"></a><a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]; <span class="comment">/* Input A */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__convolution__example__f32_8c.html#a88a0167516ae7ed66203fd60e6ddeea3">Bk</a>[<a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]; <span class="comment">/* Input B */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__convolution__example__f32_8c.html#a13521f3164dc55679f43b7cb2e41e098">AxB</a>[<a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a> * 2]; <span class="comment">/* Output */</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Test input data for Floating point Convolution example for 32-blockSize</span></div>
<div class="line"><span class="comment">* Generated by the MATLAB randn() function</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a4"></a><a class="code" href="arm__convolution__example__f32_8c.html#a7db2f016e1afcb524a2fdc3c5a3cb640">testInputA_f32</a>[64] =</div>
<div class="line">{</div>
<div class="line"> -0.808920, 1.357369, 1.180861, -0.504544, 1.762637, -0.703285,</div>
<div class="line"> 1.696966, 0.620571, -0.151093, -0.100235, -0.872382, -0.403579,</div>
<div class="line"> -0.860749, -0.382648, -1.052338, 0.128113, -0.646269, 1.093377,</div>
<div class="line"> -2.209198, 0.471706, 0.408901, 1.266242, 0.598252, 1.176827,</div>
<div class="line"> -0.203421, 0.213596, -0.851964, -0.466958, 0.021841, -0.698938,</div>
<div class="line"> -0.604107, 0.461778, -0.318219, 0.942520, 0.577585, 0.417619,</div>
<div class="line"> 0.614665, 0.563679, -1.295073, -0.764437, 0.952194, -0.859222,</div>
<div class="line"> -0.618554, -2.268542, -1.210592, 1.655853, -2.627219, -0.994249,</div>
<div class="line"> -1.374704, 0.343799, 0.025619, 1.227481, -0.708031, 0.069355,</div>
<div class="line"> -1.845228, -1.570886, 1.010668, -1.802084, 1.630088, 1.286090,</div>
<div class="line"> -0.161050, -0.940794, 0.367961, 0.291907</div>
<div class="line"></div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a5"></a><a class="code" href="arm__convolution__example__f32_8c.html#acb22287e7e096b677e352dfd363ba60d">testInputB_f32</a>[64] =</div>
<div class="line">{</div>
<div class="line"> 0.933724, 0.046881, 1.316470, 0.438345, 0.332682, 2.094885,</div>
<div class="line"> 0.512081, 0.035546, 0.050894, -2.320371, 0.168711, -1.830493,</div>
<div class="line"> -0.444834, -1.003242, -0.531494, -1.365600, -0.155420, -0.757692,</div>
<div class="line"> -0.431880, -0.380021, 0.096243, -0.695835, 0.558850, -1.648962,</div>
<div class="line"> 0.020369, -0.363630, 0.887146, 0.845503, -0.252864, -0.330397,</div>
<div class="line"> 1.269131, -1.109295, -1.027876, 0.135940, 0.116721, -0.293399,</div>
<div class="line"> -1.349799, 0.166078, -0.802201, 0.369367, -0.964568, -2.266011,</div>
<div class="line"> 0.465178, 0.651222, -0.325426, 0.320245, -0.784178, -0.579456,</div>
<div class="line"> 0.093374, 0.604778, -0.048225, 0.376297, -0.394412, 0.578182,</div>
<div class="line"> -1.218141, -1.387326, 0.692462, -0.631297, 0.153137, -0.638952,</div>
<div class="line"> 0.635474, -0.970468, 1.334057, -0.111370</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <span class="keywordtype">float</span> <a name="a6"></a><a class="code" href="arm__convolution__example__f32_8c.html#a7ede41b07b8766013744c8fdbb80af75">testRefOutput_f32</a>[127] =</div>
<div class="line">{</div>
<div class="line"> -0.818943, 1.229484, -0.533664, 1.016604, 0.341875, -1.963656,</div>
<div class="line"> 5.171476, 3.478033, 7.616361, 6.648384, 0.479069, 1.792012,</div>
<div class="line"> -1.295591, -7.447818, 0.315830, -10.657445, -2.483469, -6.524236,</div>
<div class="line"> -7.380591, -3.739005, -8.388957, 0.184147, -1.554888, 3.786508,</div>
<div class="line"> -1.684421, 5.400610, -1.578126, 7.403361, 8.315999, 2.080267,</div>
<div class="line"> 11.077776, 2.749673, 7.138962, 2.748762, 0.660363, 0.981552,</div>
<div class="line"> 1.442275, 0.552721, -2.576892, 4.703989, 0.989156, 8.759344,</div>
<div class="line"> -0.564825, -3.994680, 0.954710, -5.014144, 6.592329, 1.599488,</div>
<div class="line"> -13.979146, -0.391891, -4.453369, -2.311242, -2.948764, 1.761415,</div>
<div class="line"> -0.138322, 10.433007, -2.309103, 4.297153, 8.535523, 3.209462,</div>
<div class="line"> 8.695819, 5.569919, 2.514304, 5.582029, 2.060199, 0.642280,</div>
<div class="line"> 7.024616, 1.686615, -6.481756, 1.343084, -3.526451, 1.099073,</div>
<div class="line"> -2.965764, -0.173723, -4.111484, 6.528384, -6.965658, 1.726291,</div>
<div class="line"> 1.535172, 11.023435, 2.338401, -4.690188, 1.298210, 3.943885,</div>
<div class="line"> 8.407885, 5.168365, 0.684131, 1.559181, 1.859998, 2.852417,</div>
<div class="line"> 8.574070, -6.369078, 6.023458, 11.837963, -6.027632, 4.469678,</div>
<div class="line"> -6.799093, -2.674048, 6.250367, -6.809971, -3.459360, 9.112410,</div>
<div class="line"> -2.711621, -1.336678, 1.564249, -1.564297, -1.296760, 8.904013,</div>
<div class="line"> -3.230109, 6.878013, -7.819823, 3.369909, -1.657410, -2.007358,</div>
<div class="line"> -4.112825, 1.370685, -3.420525, -6.276605, 3.244873, -3.352638,</div>
<div class="line"> 1.545372, 0.902211, 0.197489, -1.408732, 0.523390, 0.348440, 0</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare Global variables</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line">uint32_t <a name="a7"></a><a class="code" href="arm__convolution__example__f32_8c.html#ace48ed566e2cd6a680f0681192e6af28">srcALen</a> = 64; <span class="comment">/* Length of Input A */</span></div>
<div class="line">uint32_t <a name="a8"></a><a class="code" href="arm__convolution__example__f32_8c.html#aea71286f498978c5ed3775609b974fc8">srcBLen</a> = 64; <span class="comment">/* Length of Input B */</span></div>
<div class="line">uint32_t <a name="a9"></a><a class="code" href="arm__convolution__example__f32_8c.html#a9c49c44c8bc5c432d220d33a26b4b589">outLen</a>; <span class="comment">/* Length of convolution output */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a10"></a><a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a>; <span class="comment">/* output SNR */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a11"></a><a class="code" href="arm__convolution__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a12"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>; <span class="comment">/* Status of the example */</span></div>
<div class="line"> <a name="_a13"></a><a class="code" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a> cfft_instance; <span class="comment">/* CFFT Structure instance */</span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* CFFT Structure instance pointer */</span></div>
<div class="line"> <a class="code" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a> *cfft_instance_ptr =</div>
<div class="line"> (<a class="code" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a>*) &cfft_instance;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* output length of convolution */</span></div>
<div class="line"> <a class="code" href="arm__convolution__example__f32_8c.html#a9c49c44c8bc5c432d220d33a26b4b589">outLen</a> = <a class="code" href="arm__convolution__example__f32_8c.html#ace48ed566e2cd6a680f0681192e6af28">srcALen</a> + <a class="code" href="arm__convolution__example__f32_8c.html#aea71286f498978c5ed3775609b974fc8">srcBLen</a> - 1;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialise the fft input buffers with all zeros */</span></div>
<div class="line"> <a name="a14"></a><a class="code" href="group__Fill.html#ga2248e8d3901b4afb7827163132baad94">arm_fill_f32</a>(0.0, <a class="code" href="arm__convolution__example__f32_8c.html#aed74eacd4b96cc7f71b64d18f2e95705">Ak</a>, <a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>);</div>
<div class="line"> <a class="code" href="group__Fill.html#ga2248e8d3901b4afb7827163132baad94">arm_fill_f32</a>(0.0, <a class="code" href="arm__convolution__example__f32_8c.html#a88a0167516ae7ed66203fd60e6ddeea3">Bk</a>, <a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Copy the input values to the fft input buffers */</span></div>
<div class="line"> <a name="a15"></a><a class="code" href="group__copy.html#gaa6dfe9554ca61eb3d1eee498396bce88">arm_copy_f32</a>(<a class="code" href="arm__convolution__example__f32_8c.html#a7db2f016e1afcb524a2fdc3c5a3cb640">testInputA_f32</a>, <a class="code" href="arm__convolution__example__f32_8c.html#aed74eacd4b96cc7f71b64d18f2e95705">Ak</a>, <a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>/2);</div>
<div class="line"> <a class="code" href="group__copy.html#gaa6dfe9554ca61eb3d1eee498396bce88">arm_copy_f32</a>(<a class="code" href="arm__convolution__example__f32_8c.html#acb22287e7e096b677e352dfd363ba60d">testInputB_f32</a>, <a class="code" href="arm__convolution__example__f32_8c.html#a88a0167516ae7ed66203fd60e6ddeea3">Bk</a>, <a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>/2);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialize the CFFT function to compute 64 point fft */</span></div>
<div class="line"> status = <a name="a16"></a><a class="code" href="group__ComplexFFT.html#gaf336459f684f0b17bfae539ef1b1b78a">arm_cfft_radix4_init_f32</a>(cfft_instance_ptr, 64, 0, 1);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Transform input a[n] from time domain to frequency domain A[k] */</span></div>
<div class="line"> <a name="a17"></a><a class="code" href="group__ComplexFFT.html#ga521f670cd9c571bc61aff9bec89f4c26">arm_cfft_radix4_f32</a>(cfft_instance_ptr, <a class="code" href="arm__convolution__example__f32_8c.html#aed74eacd4b96cc7f71b64d18f2e95705">Ak</a>);</div>
<div class="line"> <span class="comment">/* Transform input b[n] from time domain to frequency domain B[k] */</span></div>
<div class="line"> <a class="code" href="group__ComplexFFT.html#ga521f670cd9c571bc61aff9bec89f4c26">arm_cfft_radix4_f32</a>(cfft_instance_ptr, <a class="code" href="arm__convolution__example__f32_8c.html#a88a0167516ae7ed66203fd60e6ddeea3">Bk</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Complex Multiplication of the two input buffers in frequency domain */</span></div>
<div class="line"> <a name="a18"></a><a class="code" href="group__CmplxByCmplxMult.html#gae221504b01e4abfe5f335eafd801b4ed">arm_cmplx_mult_cmplx_f32</a>(<a class="code" href="arm__convolution__example__f32_8c.html#aed74eacd4b96cc7f71b64d18f2e95705">Ak</a>, <a class="code" href="arm__convolution__example__f32_8c.html#a88a0167516ae7ed66203fd60e6ddeea3">Bk</a>, <a class="code" href="arm__convolution__example__f32_8c.html#a13521f3164dc55679f43b7cb2e41e098">AxB</a>, <a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>/2);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialize the CIFFT function to compute 64 point ifft */</span></div>
<div class="line"> status = <a class="code" href="group__ComplexFFT.html#gaf336459f684f0b17bfae539ef1b1b78a">arm_cfft_radix4_init_f32</a>(cfft_instance_ptr, 64, 1, 1);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Transform the multiplication output from frequency domain to time domain,</span></div>
<div class="line"><span class="comment"> that gives the convolved output */</span></div>
<div class="line"> <a class="code" href="group__ComplexFFT.html#ga521f670cd9c571bc61aff9bec89f4c26">arm_cfft_radix4_f32</a>(cfft_instance_ptr, <a class="code" href="arm__convolution__example__f32_8c.html#a13521f3164dc55679f43b7cb2e41e098">AxB</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* SNR Calculation */</span></div>
<div class="line"> <a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> = <a name="a19"></a><a class="code" href="arm__convolution__example_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a>((<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__convolution__example__f32_8c.html#a7ede41b07b8766013744c8fdbb80af75">testRefOutput_f32</a>, <a class="code" href="arm__convolution__example__f32_8c.html#a13521f3164dc55679f43b7cb2e41e098">AxB</a>, <a class="code" href="arm__convolution__example__f32_8c.html#ace48ed566e2cd6a680f0681192e6af28">srcALen</a> + srcBLen - 1);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Compare the SNR with threshold to test whether the</span></div>
<div class="line"><span class="comment"> computed output is matched with the reference output values. */</span></div>
<div class="line"> <span class="keywordflow">if</span> ( <a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> > <a name="a20"></a><a class="code" href="arm__convolution__example__f32_8c.html#af08ec3fef897d77c6817638bf0e0c5c6">SNR_THRESHOLD</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a21"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
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<div class="title">arm_dotproduct_example_f32.c</div> </div>
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<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_dotproduct_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code computing dot product of two vectors.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include <math.h></span></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Defines each of the tests performed</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="preprocessor">#define MAX_BLOCKSIZE 32</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA (0.000001f)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Test input data for Floating point Dot Product example for 32-blockSize</span></div>
<div class="line"><span class="comment">* Generated by the MATLAB randn() function</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Test input data of srcA for blockSize 32</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a0c248a472fdc0507e4ab7d693e4876b6">srcA_buf_f32</a>[<a name="a1"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>] =</div>
<div class="line">{</div>
<div class="line"> -0.4325648115282207, -1.6655843782380970, 0.1253323064748307,</div>
<div class="line"> 0.2876764203585489, -1.1464713506814637, 1.1909154656429988,</div>
<div class="line"> 1.1891642016521031, -0.0376332765933176, 0.3272923614086541,</div>
<div class="line"> 0.1746391428209245, -0.1867085776814394, 0.7257905482933027,</div>
<div class="line"> -0.5883165430141887, 2.1831858181971011, -0.1363958830865957,</div>
<div class="line"> 0.1139313135208096, 1.0667682113591888, 0.0592814605236053,</div>
<div class="line"> -0.0956484054836690, -0.8323494636500225, 0.2944108163926404,</div>
<div class="line"> -1.3361818579378040, 0.7143245518189522, 1.6235620644462707,</div>
<div class="line"> -0.6917757017022868, 0.8579966728282626, 1.2540014216025324,</div>
<div class="line"> -1.5937295764474768, -1.4409644319010200, 0.5711476236581780,</div>
<div class="line"> -0.3998855777153632, 0.6899973754643451</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Test input data of srcB for blockSize 32</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a67d9082c1585d4854ae9ca38db170ff5">srcB_buf_f32</a>[<a class="code" href="arm__dotproduct__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>] =</div>
<div class="line">{</div>
<div class="line"> 1.7491401329284098, 0.1325982188803279, 0.3252281811989881,</div>
<div class="line"> -0.7938091410349637, 0.3149236145048914, -0.5272704888029532,</div>
<div class="line"> 0.9322666565031119, 1.1646643544607362, -2.0456694357357357,</div>
<div class="line"> -0.6443728590041911, 1.7410657940825480, 0.4867684246821860,</div>
<div class="line"> 1.0488288293660140, 1.4885752747099299, 1.2705014969484090,</div>
<div class="line"> -1.8561241921210170, 2.1343209047321410, 1.4358467535865909,</div>
<div class="line"> -0.9173023332875400, -1.1060770780029008, 0.8105708062681296,</div>
<div class="line"> 0.6985430696369063, -0.4015827425012831, 1.2687512030669628,</div>
<div class="line"> -0.7836083053674872, 0.2132664971465569, 0.7878984786088954,</div>
<div class="line"> 0.8966819356782295, -0.1869172943544062, 1.0131816724341454,</div>
<div class="line"> 0.2484350696132857, 0.0596083377937976</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/* Reference dot product output */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#ad57c1f9ad68d098d79b15ec6844a26fc">refDotProdOut</a> = 5.9273644806352142;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare Global variables</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a4"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#ad0bfd425dfe1ff2bda80fb957e464098">multOutput</a>[<a class="code" href="arm__dotproduct__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>]; <span class="comment">/* Intermediate output */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a5"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">testOutput</a>; <span class="comment">/* Final ouput */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a6"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>; <span class="comment">/* Status of the example */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a7"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> uint32_t i; <span class="comment">/* Loop counter */</span></div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> diff; <span class="comment">/* Difference between reference and test outputs */</span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Multiplication of two input buffers */</span></div>
<div class="line"> <a name="a8"></a><a class="code" href="group__BasicMult.html#gacf950935141cad927bea886e88fd9e9b">arm_mult_f32</a>(<a class="code" href="arm__dotproduct__example__f32_8c.html#a0c248a472fdc0507e4ab7d693e4876b6">srcA_buf_f32</a>, <a class="code" href="arm__dotproduct__example__f32_8c.html#a67d9082c1585d4854ae9ca38db170ff5">srcB_buf_f32</a>, <a class="code" href="arm__dotproduct__example__f32_8c.html#ad0bfd425dfe1ff2bda80fb957e464098">multOutput</a>, <a class="code" href="arm__dotproduct__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Accumulate the multiplication output values to</span></div>
<div class="line"><span class="comment"> get the dot product of the two inputs */</span></div>
<div class="line"> <span class="keywordflow">for</span>(i=0; i< <a class="code" href="arm__dotproduct__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>; i++)</div>
<div class="line"> {</div>
<div class="line"> <a name="a9"></a><a class="code" href="group__BasicAdd.html#gabfef1e86e458314a61f4baa441d9765e">arm_add_f32</a>(&<a class="code" href="arm__dotproduct__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">testOutput</a>, &<a class="code" href="arm__dotproduct__example__f32_8c.html#ad0bfd425dfe1ff2bda80fb957e464098">multOutput</a>[i], &<a class="code" href="arm__dotproduct__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">testOutput</a>, 1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* absolute value of difference between ref and test */</span></div>
<div class="line"> diff = fabsf(<a class="code" href="arm__dotproduct__example__f32_8c.html#ad57c1f9ad68d098d79b15ec6844a26fc">refDotProdOut</a> - <a class="code" href="arm__dotproduct__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">testOutput</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Comparison of dot product value with reference */</span></div>
<div class="line"> <span class="keywordflow">if</span> (diff > <a name="a10"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">DELTA</a>)</div>
<div class="line"> {</div>
<div class="line"> <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> = <a name="a11"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> ( <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> == <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
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<div class="title">arm_fft_bin_example_f32.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_fft_bin_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code demonstrating calculation of Max energy bin of</span></div>
<div class="line"><span class="comment">* frequency domain of input signal.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__const__structs_8h.html">arm_const_structs.h</a>"</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define TEST_LENGTH_SAMPLES 2048</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* -------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* External Input and Output buffer Declarations for FFT Bin Example</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#a3d8ecb82590486ceebccc76263963b16">testInput_f32_10khz</a>[<a name="a1"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#aaaf907bde12051bc8bb5d48b7d315a35">testOutput</a>[<a class="code" href="arm__fft__bin__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>/2];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Global variables for FFT Bin Example</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line">uint32_t <a name="a3"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#a9b500899c581f6df3ffc0a9f3a9ef6aa">fftSize</a> = 1024;</div>
<div class="line">uint32_t <a name="a4"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#a379ccb99013d369a41b49619083c16ef">ifftFlag</a> = 0;</div>
<div class="line">uint32_t <a name="a5"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#a4d2e31c38e8172505e0a369a6898657d">doBitReverse</a> = 1;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* Reference index at which max energy of bin ocuurs */</span></div>
<div class="line">uint32_t <a name="a6"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#aec50b0f697fd9e7e7e244487a4bd57e4">refIndex</a> = 213, <a name="a7"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#a4a391651dbb95db35ccba70fc4f9e049">testIndex</a> = 0;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Max magnitude FFT Bin test</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a8"></a><a class="code" href="arm__fft__bin__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"></div>
<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a9"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> maxValue;</div>
<div class="line"></div>
<div class="line"> status = <a name="a10"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Process the data through the CFFT/CIFFT module */</span></div>
<div class="line"> <a name="a11"></a><a class="code" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a>(&<a name="a12"></a><a class="code" href="arm__const__structs_8h.html#a05abc294a9159abbd6ffb4f188fe18b1">arm_cfft_sR_f32_len1024</a>, <a class="code" href="arm__fft__bin__example__f32_8c.html#a3d8ecb82590486ceebccc76263963b16">testInput_f32_10khz</a>, <a class="code" href="arm__fft__bin__example__f32_8c.html#a379ccb99013d369a41b49619083c16ef">ifftFlag</a>, <a class="code" href="arm__fft__bin__example__f32_8c.html#a4d2e31c38e8172505e0a369a6898657d">doBitReverse</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Process the data through the Complex Magnitude Module for</span></div>
<div class="line"><span class="comment"> calculating the magnitude at each bin */</span></div>
<div class="line"> <a name="a13"></a><a class="code" href="group__cmplx__mag.html#gaba4e0eff7816fe80d01121fb4cf6c6bc">arm_cmplx_mag_f32</a>(<a class="code" href="arm__fft__bin__example__f32_8c.html#a3d8ecb82590486ceebccc76263963b16">testInput_f32_10khz</a>, <a class="code" href="arm__fft__bin__example__f32_8c.html#aaaf907bde12051bc8bb5d48b7d315a35">testOutput</a>, <a class="code" href="arm__fft__bin__example__f32_8c.html#a9b500899c581f6df3ffc0a9f3a9ef6aa">fftSize</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Calculates maxValue and returns corresponding BIN value */</span></div>
<div class="line"> <a name="a14"></a><a class="code" href="group__Max.html#gad1eabd31544fe59c414d9ce5bd0cc151">arm_max_f32</a>(<a class="code" href="arm__fft__bin__example__f32_8c.html#aaaf907bde12051bc8bb5d48b7d315a35">testOutput</a>, <a class="code" href="arm__fft__bin__example__f32_8c.html#a9b500899c581f6df3ffc0a9f3a9ef6aa">fftSize</a>, &maxValue, &<a class="code" href="arm__fft__bin__example__f32_8c.html#a4a391651dbb95db35ccba70fc4f9e049">testIndex</a>);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="arm__fft__bin__example__f32_8c.html#a4a391651dbb95db35ccba70fc4f9e049">testIndex</a> != <a class="code" href="arm__fft__bin__example__f32_8c.html#aec50b0f697fd9e7e7e244487a4bd57e4">refIndex</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a15"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Loop here if the signals fail the PASS check.</span></div>
<div class="line"><span class="comment"> ** This denotes a test failure</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
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<div class="title">arm_fir_example_f32.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment"> * Title: arm_fir_example_f32.c</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Description: Example code demonstrating how an FIR filter can be used</span></div>
<div class="line"><span class="comment"> * as a low pass filter.</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment"> * Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment"> *</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Include Files</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "math_helper.h"</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Macro Defines</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define TEST_LENGTH_SAMPLES 320</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define SNR_THRESHOLD_F32 140.0f</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define BLOCK_SIZE 32</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define NUM_TAPS 29</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* -------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * The input signal and reference output (computed with MATLAB)</span></div>
<div class="line"><span class="comment"> * are defined externally in arm_fir_lpf_data.c.</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__fir__example__f32_8c.html#a35d190391c204b677e2839d76ede6e8b">testInput_f32_1kHz_15kHz</a>[<a name="a1"></a><a class="code" href="arm__fir__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__fir__example__f32_8c.html#a12d0acaa028f1dcd964d2d188e7df331">refOutput</a>[<a class="code" href="arm__fir__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* -------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Declare Test output buffer</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__fir__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[<a class="code" href="arm__fir__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* -------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Declare State buffer of size (numTaps + blockSize - 1)</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a4"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a358ec4e79689e6d3787b89fe78bdb772">firStateF32</a>[<a name="a5"></a><a class="code" href="arm__fir__example__f32_8c.html#ad51ded0bbd705f02f73fc60c0b721ced">BLOCK_SIZE</a> + <a name="a6"></a><a class="code" href="arm__fir__example__f32_8c.html#a7579d94e0a80fb9d376ea6c7897f73b0">NUM_TAPS</a> - 1];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** FIR Coefficients buffer generated using fir1() MATLAB function.</span></div>
<div class="line"><span class="comment">** fir1(28, 6/24)</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a7"></a><a class="code" href="arm__fir__example__f32_8c.html#ae070afd14f437ad1ae0a947e4403dd0e">firCoeffs32</a>[<a class="code" href="arm__fir__example__f32_8c.html#a7579d94e0a80fb9d376ea6c7897f73b0">NUM_TAPS</a>] = {</div>
<div class="line"> -0.0018225230f, -0.0015879294f, +0.0000000000f, +0.0036977508f, +0.0080754303f, +0.0085302217f, -0.0000000000f, -0.0173976984f,</div>
<div class="line"> -0.0341458607f, -0.0333591565f, +0.0000000000f, +0.0676308395f, +0.1522061835f, +0.2229246956f, +0.2504960933f, +0.2229246956f,</div>
<div class="line"> +0.1522061835f, +0.0676308395f, +0.0000000000f, -0.0333591565f, -0.0341458607f, -0.0173976984f, -0.0000000000f, +0.0085302217f,</div>
<div class="line"> +0.0080754303f, +0.0036977508f, +0.0000000000f, -0.0015879294f, -0.0018225230f</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Global variables for FIR LPF Example</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">uint32_t <a name="a8"></a><a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a> = <a class="code" href="arm__fir__example__f32_8c.html#ad51ded0bbd705f02f73fc60c0b721ced">BLOCK_SIZE</a>;</div>
<div class="line">uint32_t <a name="a9"></a><a class="code" href="arm__fir__example__f32_8c.html#af7d5613bda9a19b2ccae5d6cb79a22bc">numBlocks</a> = <a class="code" href="arm__fir__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>/<a class="code" href="arm__fir__example__f32_8c.html#ad51ded0bbd705f02f73fc60c0b721ced">BLOCK_SIZE</a>;</div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a10"></a><a class="code" href="arm__fir__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a>;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * FIR LPF Example</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a11"></a><a class="code" href="arm__fir__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> uint32_t i;</div>
<div class="line"> <a name="_a12"></a><a class="code" href="structarm__fir__instance__f32.html">arm_fir_instance_f32</a> S;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a13"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *inputF32, *outputF32;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialize input and output buffer pointers */</span></div>
<div class="line"> inputF32 = &<a class="code" href="arm__fir__example__f32_8c.html#a35d190391c204b677e2839d76ede6e8b">testInput_f32_1kHz_15kHz</a>[0];</div>
<div class="line"> outputF32 = &<a class="code" href="arm__fir__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[0];</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Call FIR init function to initialize the instance structure. */</span></div>
<div class="line"> <a name="a14"></a><a class="code" href="group__FIR.html#ga5afaa7b8e6735bbc19e582aa9755b0e1">arm_fir_init_f32</a>(&S, <a class="code" href="arm__fir__example__f32_8c.html#a7579d94e0a80fb9d376ea6c7897f73b0">NUM_TAPS</a>, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)&<a class="code" href="arm__fir__example__f32_8c.html#ae070afd14f437ad1ae0a947e4403dd0e">firCoeffs32</a>[0], &<a class="code" href="arm__signal__converge__example__f32_8c.html#a358ec4e79689e6d3787b89fe78bdb772">firStateF32</a>[0], <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the FIR process function for every blockSize samples</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">for</span>(i=0; i < <a class="code" href="arm__fir__example__f32_8c.html#af7d5613bda9a19b2ccae5d6cb79a22bc">numBlocks</a>; i++)</div>
<div class="line"> {</div>
<div class="line"> <a name="a15"></a><a class="code" href="group__FIR.html#ga0cf008f650a75f5e2cf82d10691b64d9">arm_fir_f32</a>(&S, inputF32 + (i * <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>), outputF32 + (i * blockSize), blockSize);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Compare the generated output against the reference output computed</span></div>
<div class="line"><span class="comment"> ** in MATLAB.</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a class="code" href="arm__fir__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> = <a name="a16"></a><a class="code" href="arm__convolution__example_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a>(&<a class="code" href="arm__fir__example__f32_8c.html#a12d0acaa028f1dcd964d2d188e7df331">refOutput</a>[0], &<a class="code" href="arm__fir__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[0], <a class="code" href="arm__fir__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="arm__fir__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> < <a name="a17"></a><a class="code" href="arm__fir__example__f32_8c.html#af7d1dd4deffa8e7ed6429e5dd0fe1812">SNR_THRESHOLD_F32</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a18"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">else</span></div>
<div class="line"> {</div>
<div class="line"> status = <a name="a19"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Loop here if the signal does not match the reference output.</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
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<div class="title">arm_graphic_equalizer_example_q31.c</div> </div>
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<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_graphic_equalizer_example_q31.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example showing an audio graphic equalizer constructed</span></div>
<div class="line"><span class="comment">* out of Biquad filters.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "math_helper.h"</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* Length of the overall data in the test */</span></div>
<div class="line"><span class="preprocessor">#define TESTLENGTH 320</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* Block size for the underlying processing */</span></div>
<div class="line"><span class="preprocessor">#define BLOCKSIZE 32</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* Total number of blocks to run */</span></div>
<div class="line"><span class="preprocessor">#define NUMBLOCKS (TESTLENGTH/BLOCKSIZE)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* Number of 2nd order Biquad stages per filter */</span></div>
<div class="line"><span class="preprocessor">#define NUMSTAGES 2</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor">#define SNR_THRESHOLD_F32 98</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* -------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * External Declarations for Input and Output buffers</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[<a name="a1"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>];</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a3293e83a154108a1d398bb042e293894">testOutput</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>];</div>
<div class="line"></div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9cbbafa975d67bc8ee8ea3260fdd5638">testRefOutput_f32</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Q31 state buffers for Band1, Band2, Band3, Band4, Band5</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a5aea1cb12fc02d9d44c8abf217eaa5c6">q63_t</a> <a name="a4"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a8e7062fa3f8b5ed9849566d16270f4ec">biquadStateBand1Q31</a>[4 * 2];</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a5aea1cb12fc02d9d44c8abf217eaa5c6">q63_t</a> <a name="a5"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4a82090b15ebd0a45048d94f16131782">biquadStateBand2Q31</a>[4 * 2];</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> <a name="a6"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#ad487a54340631b764952fccf599adc8a">biquadStateBand3Q31</a>[4 * 2];</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> <a name="a7"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a122ed5f6d8665139fbe9424a073b3474">biquadStateBand4Q31</a>[4 * 2];</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> <a name="a8"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af88658a8c5f87eeea26da30305921b59">biquadStateBand5Q31</a>[4 * 2];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Q31 input and output buffers</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> <a name="a9"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>[<a name="a10"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"><a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> <a name="a11"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Entire coefficient table. There are 10 coefficients per 4th order Biquad</span></div>
<div class="line"><span class="comment">** cascade filter. The first 10 coefficients correspond to the -9 dB gain</span></div>
<div class="line"><span class="comment">** setting of band 1; the next 10 coefficient correspond to the -8 dB gain</span></div>
<div class="line"><span class="comment">** setting of band 1; and so on. There are 10*19=190 coefficients in total</span></div>
<div class="line"><span class="comment">** for band 1 (gains = -9, -8, -7, ..., 9). After this come the 190 coefficients</span></div>
<div class="line"><span class="comment">** for band 2.</span></div>
<div class="line"><span class="comment">**</span></div>
<div class="line"><span class="comment">** The coefficients are in Q29 format and require a postShift of 2.</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> <a name="a12"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[950] = {</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Band 1, -9 dB gain */</span></div>
<div class="line"> 535576962, -1071153923, 535576962, 1073741824, -536870912, 535576962, -1063501998, 527979313, 1060865294, -524146981,</div>
<div class="line"> <span class="comment">/* Band 1, -8 dB gain */</span></div>
<div class="line"> 535723226, -1071446451, 535723226, 1073741824, -536870912, 535723226, -1063568947, 527903217, 1061230578, -524503778,</div>
<div class="line"> 535868593, -1071737186, 535868593, 1073741824, -536870912, 535868593, -1063627467, 527819780, 1061585502, -524850686,</div>
<div class="line"> 536013181, -1072026363, 536013181, 1073741824, -536870912, 536013181, -1063677598, 527728935, 1061930361, -525187972,</div>
<div class="line"> 536157109, -1072314217, 536157109, 1073741824, -536870912, 536157109, -1063719372, 527630607, 1062265438, -525515897,</div>
<div class="line"> 536300492, -1072600983, 536300492, 1073741824, -536870912, 536300492, -1063752815, 527524720, 1062591011, -525834716,</div>
<div class="line"> 536443447, -1072886894, 536443447, 1073741824, -536870912, 536443447, -1063777945, 527411186, 1062907350, -526144676,</div>
<div class="line"> 536586091, -1073172183, 536586091, 1073741824, -536870912, 536586091, -1063794775, 527289917, 1063214717, -526446017,</div>
<div class="line"> 536728541, -1073457082, 536728541, 1073741824, -536870912, 536728541, -1063803308, 527160815, 1063513366, -526738975,</div>
<div class="line"> 536870912, -1073741824, 536870912, 1073741824, -536870912, 536870912, -1063803543, 527023777, 1063803543, -527023777,</div>
<div class="line"> 537013321, -1074026642, 537013321, 1073741824, -536870912, 537013321, -1063795470, 526878696, 1064085490, -527300648,</div>
<div class="line"> 537155884, -1074311768, 537155884, 1073741824, -536870912, 537155884, -1063779073, 526725455, 1064359439, -527569803,</div>
<div class="line"> 537298718, -1074597435, 537298718, 1073741824, -536870912, 537298718, -1063754328, 526563934, 1064625617, -527831454,</div>
<div class="line"> 537441939, -1074883878, 537441939, 1073741824, -536870912, 537441939, -1063721205, 526394005, 1064884245, -528085806,</div>
<div class="line"> 537585666, -1075171331, 537585666, 1073741824, -536870912, 537585666, -1063679666, 526215534, 1065135536, -528333059,</div>
<div class="line"> 537730015, -1075460030, 537730015, 1073741824, -536870912, 537730015, -1063629666, 526028380, 1065379699, -528573409,</div>
<div class="line"> 537875106, -1075750212, 537875106, 1073741824, -536870912, 537875106, -1063571152, 525832396, 1065616936, -528807045,</div>
<div class="line"> 538021057, -1076042114, 538021057, 1073741824, -536870912, 538021057, -1063504065, 525627429, 1065847444, -529034151,</div>
<div class="line"> 538167989, -1076335977, 538167989, 1073741824, -536870912, 538167989, -1063428338, 525413317, 1066071412, -529254907,</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Band 2, -9 dB gain */</span></div>
<div class="line"> 531784976, -1055497692, 523873415, 1066213307, -529420241, 531784976, -1040357886, 509828014, 1028908252, -494627367,</div>
<div class="line"> <span class="comment">/* Band 2, -8 dB gain */</span></div>
<div class="line"> 532357636, -1056601982, 524400080, 1066115844, -529326645, 532357636, -1040623406, 509562600, 1030462237, -496062122,</div>
<div class="line"> 532927392, -1057707729, 524931110, 1066024274, -529239070, 532927392, -1040848253, 509262081, 1031969246, -497457090,</div>
<div class="line"> 533494678, -1058816094, 525467240, 1065939047, -529157961, 533494678, -1041032161, 508925950, 1033429976, -498812573,</div>
<div class="line"> 534059929, -1059928204, 526009170, 1065860582, -529083734, 534059929, -1041174868, 508553717, 1034845124, -500128887,</div>
<div class="line"> 534623580, -1061045148, 526557561, 1065789260, -529016764, 534623580, -1041276126, 508144920, 1036215393, -501406373,</div>
<div class="line"> 535186068, -1062167969, 527113032, 1065725420, -528957385, 535186068, -1041335703, 507699125, 1037541500, -502645399,</div>
<div class="line"> 535747827, -1063297666, 527676151, 1065669351, -528905879, 535747827, -1041353386, 507215934, 1038824183, -503846368,</div>
<div class="line"> 536309295, -1064435183, 528247436, 1065621289, -528862476, 536309295, -1041328990, 506694984, 1040064203, -505009724,</div>
<div class="line"> 536870912, -1065581413, 528827349, 1065581413, -528827349, 536870912, -1041262354, 506135953, 1041262354, -506135953,</div>
<div class="line"> 537433117, -1066737194, 529416295, 1065549847, -528800610, 537433117, -1041153346, 505538564, 1042419457, -507225588,</div>
<div class="line"> 537996352, -1067903307, 530014622, 1065526651, -528782316, 537996352, -1041001864, 504902578, 1043536370, -508279208,</div>
<div class="line"> 538561061, -1069080480, 530622620, 1065511830, -528772462, 538561061, -1040807833, 504227800, 1044613981, -509297437,</div>
<div class="line"> 539127690, -1070269387, 531240527, 1065505333, -528770987, 539127690, -1040571205, 503514074, 1045653211, -510280946,</div>
<div class="line"> 539696690, -1071470656, 531868525, 1065507054, -528777778, 539696690, -1040291951, 502761277, 1046655011, -511230450,</div>
<div class="line"> 540268512, -1072684867, 532506750, 1065516837, -528792672, 540268512, -1039970063, 501969320, 1047620358, -512146700,</div>
<div class="line"> 540843613, -1073912567, 533155297, 1065534483, -528815459, 540843613, -1039605542, 501138139, 1048550251, -513030484,</div>
<div class="line"> 541422451, -1075154268, 533814224, 1065559750, -528845892, 541422451, -1039198394, 500267687, 1049445708, -513882621,</div>
<div class="line"> 542005489, -1076410460, 534483561, 1065592362, -528883686, 542005489, -1038748624, 499357932, 1050307760, -514703956,</div>
<div class="line"> 518903861, -1001986830, 486725277, 1037235801, -502367695, 518903861, -945834422, 446371043, 902366163, -400700571,</div>
<div class="line"> 520899989, -1005630916, 488289126, 1036926846, -502147311, 520899989, -946490935, 445581846, 907921945, -404936158,</div>
<div class="line"> 522893209, -1009290002, 489869792, 1036650484, -501961419, 522893209, -947006359, 444685310, 913306106, -409075225,</div>
<div class="line"> 524884763, -1012968199, 491470256, 1036407567, -501810737, 524884763, -947377809, 443679533, 918521018, -413116221,</div>
<div class="line"> 526875910, -1016669649, 493093518, 1036198712, -501695739, 526875910, -947602324, 442562672, 923569247, -417057897,</div>
<div class="line"> 528867927, -1020398503, 494742575, 1036024293, -501616651, 528867927, -947676875, 441332970, 928453558, -420899319,</div>
<div class="line"> 530862111, -1024158905, 496420407, 1035884447, -501573457, 530862111, -947598385, 439988777, 933176909, -424639872,</div>
<div class="line"> 532859778, -1027954970, 498129955, 1035779077, -501565907, 532859778, -947363742, 438528571, 937742446, -428279254,</div>
<div class="line"> 534862260, -1031790763, 499874098, 1035707863, -501593525, 534862260, -946969823, 436950987, 942153486, -431817474,</div>
<div class="line"> 536870912, -1035670279, 501655630, 1035670279, -501655630, 536870912, -946413508, 435254839, 946413508, -435254839,</div>
<div class="line"> 538887107, -1039597419, 503477238, 1035665609, -501751354, 538887107, -945691703, 433439146, 950526127, -438591937,</div>
<div class="line"> 540912240, -1043575967, 505341475, 1035692963, -501879659, 540912240, -944801359, 431503152, 954495080, -441829621,</div>
<div class="line"> 542947726, -1047609569, 507250741, 1035751307, -502039364, 542947726, -943739490, 429446349, 958324201, -444968987,</div>
<div class="line"> 544995000, -1051701717, 509207261, 1035839473, -502229165, 544995000, -942503190, 427268492, 962017400, -448011351,</div>
<div class="line"> 547055523, -1055855728, 511213065, 1035956193, -502447657, 547055523, -941089647, 424969617, 965578640, -450958226,</div>
<div class="line"> 549130774, -1060074734, 513269973, 1036100110, -502693359, 549130774, -939496155, 422550049, 969011913, -453811298,</div>
<div class="line"> 551222259, -1064361672, 515379585, 1036269804, -502964731, 551222259, -937720119, 420010407, 972321228, -456572401,</div>
<div class="line"> 553331507, -1068719280, 517543273, 1036463810, -503260192, 553331507, -935759057, 417351601, 975510582, -459243495,</div>
<div class="line"> 555460072, -1073150100, 519762181, 1036680633, -503578144, 555460072, -933610600, 414574832, 978583948, -461826644,</div>
<div class="line"> 494084017, -851422604, 404056273, 930151631, -423619864, 494084017, -673714108, 339502486, 561843007, -265801750,</div>
<div class="line"> 498713542, -859177141, 406587077, 929211656, -423786402, 498713542, -673274906, 338185129, 573719128, -272222942,</div>
<div class="line"> 503369016, -867012190, 409148384, 928362985, -424054784, 503369016, -672533059, 336693984, 585290277, -278599028,</div>
<div class="line"> 508052536, -874935599, 411746438, 927604291, -424422151, 508052536, -671478538, 335026905, 596558312, -284920289,</div>
<div class="line"> 512766286, -882955583, 414387826, 926933782, -424885216, 512766286, -670100998, 333182045, 607525792, -291177811,</div>
<div class="line"> 517512534, -891080712, 417079474, 926349262, -425440318, 517512534, -668389789, 331157902, 618195914, -297363485,</div>
<div class="line"> 522293635, -899319903, 419828635, 925848177, -426083491, 522293635, -666333963, 328953368, 628572440, -303470012,</div>
<div class="line"> 527112032, -907682405, 422642886, 925427679, -426810526, 527112032, -663922286, 326567785, 638659631, -309490882,</div>
<div class="line"> 531970251, -916177781, 425530105, 925084675, -427617023, 531970251, -661143261, 324000998, 648462180, -315420352,</div>
<div class="line"> 536870912, -924815881, 428498454, 924815881, -428498454, 536870912, -657985147, 321253420, 657985147, -321253420,</div>
<div class="line"> 541816719, -933606817, 431556352, 924617870, -429450209, 541816719, -654435997, 318326093, 667233900, -326985786,</div>
<div class="line"> 546810467, -942560921, 434712438, 924487114, -430467639, 546810467, -650483688, 315220754, 676214053, -332613816,</div>
<div class="line"> 551855042, -951688708, 437975532, 924420027, -431546101, 551855042, -646115970, 311939896, 684931422, -338134495,</div>
<div class="line"> 556953421, -961000826, 441354588, 924413001, -432680993, 556953421, -641320513, 308486839, 693391970, -343545389,</div>
<div class="line"> 562108672, -970508005, 444858642, 924462435, -433867780, 562108672, -636084967, 304865786, 701601770, -348844597,</div>
<div class="line"> 567323959, -980220994, 448496743, 924564764, -435102022, 567323959, -630397020, 301081886, 709566963, -354030710,</div>
<div class="line"> 572602539, -990150500, 452277894, 924716482, -436379394, 572602539, -624244471, 297141281, 717293726, -359102767,</div>
<div class="line"> 577947763, -1000307125, 456210977, 924914158, -437695705, 577947763, -617615296, 293051155, 724788245, -364060214,</div>
<div class="line"> 583363084, -1010701292, 460304674, 925154455, -439046908, 583363084, -610497723, 288819761, 732056685, -368902865,</div>
<div class="line"> 387379495, -506912469, 196933274, 840112184, -347208270, 387379495, 506912469, 196933274, -840112184, -347208270,</div>
<div class="line"> 401658082, -532275898, 207149427, 833765363, -343175316, 401658082, 532275898, 207149427, -833765363, -343175316,</div>
<div class="line"> 416472483, -558722695, 217902617, 827270154, -339107319, 416472483, 558722695, 217902617, -827270154, -339107319,</div>
<div class="line"> 431841949, -586290861, 229212798, 820624988, -335007540, 431841949, 586290861, 229212798, -820624988, -335007540,</div>
<div class="line"> 447786335, -615019650, 241100489, 813828443, -330879528, 447786335, 615019650, 241100489, -813828443, -330879528,</div>
<div class="line"> 464326111, -644949597, 253586805, 806879270, -326727141, 464326111, 644949597, 253586805, -806879270, -326727141,</div>
<div class="line"> 481482377, -676122557, 266693475, 799776409, -322554559, 481482377, 676122557, 266693475, -799776409, -322554559,</div>
<div class="line"> 499276882, -708581728, 280442865, 792519013, -318366296, 499276882, 708581728, 280442865, -792519013, -318366296,</div>
<div class="line"> 517732032, -742371685, 294857996, 785106465, -314167221, 517732032, 742371685, 294857996, -785106465, -314167221,</div>
<div class="line"> 536870912, -777538408, 309962566, 777538408, -309962566, 536870912, 777538408, 309962566, -777538408, -309962566,</div>
<div class="line"> 556717294, -814129313, 325780968, 769814766, -305757943, 556717294, 814129313, 325780968, -769814766, -305757943,</div>
<div class="line"> 577295658, -852193284, 342338310, 761935777, -301559360, 577295658, 852193284, 342338310, -761935777, -301559360,</div>
<div class="line"> 598631206, -891780698, 359660433, 753902014, -297373230, 598631206, 891780698, 359660433, -753902014, -297373230,</div>
<div class="line"> 620749877, -932943463, 377773927, 745714425, -293206383, 620749877, 932943463, 377773927, -745714425, -293206383,</div>
<div class="line"> 643678365, -975735041, 396706151, 737374355, -289066077, 643678365, 975735041, 396706151, -737374355, -289066077,</div>
<div class="line"> 667444134, -1020210487, 416485252, 728883588, -284960004, 667444134, 1020210487, 416485252, -728883588, -284960004,</div>
<div class="line"> 692075438, -1066426476, 437140179, 720244375, -280896294, 692075438, 1066426476, 437140179, -720244375, -280896294,</div>
<div class="line"> 717601336, -1114441339, 458700704, 711459472, -276883515, 717601336, 1114441339, 458700704, -711459472, -276883515,</div>
<div class="line"> 744051710, -1164315096, 481197437, 702532174, -272930673, 744051710, 1164315096, 481197437, -702532174, -272930673</div>
<div class="line"></div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Desired gains, in dB, per band</span></div>
<div class="line"><span class="comment">** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keywordtype">int</span> <a name="a13"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[5] = {0, -3, 6, 4, -6};</div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a14"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af06013f588a7003278de222913c9d819">snr</a>;</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Graphic equalizer Example</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a15"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *inputF32, *outputF32;</div>
<div class="line"> <a name="_a16"></a><a class="code" href="structarm__biquad__cas__df1__32x64__ins__q31.html">arm_biquad_cas_df1_32x64_ins_q31</a> S1;</div>
<div class="line"> <a class="code" href="structarm__biquad__cas__df1__32x64__ins__q31.html">arm_biquad_cas_df1_32x64_ins_q31</a> S2;</div>
<div class="line"> <a name="_a17"></a><a class="code" href="structarm__biquad__casd__df1__inst__q31.html">arm_biquad_casd_df1_inst_q31</a> S3;</div>
<div class="line"> <a class="code" href="structarm__biquad__casd__df1__inst__q31.html">arm_biquad_casd_df1_inst_q31</a> S4;</div>
<div class="line"> <a class="code" href="structarm__biquad__casd__df1__inst__q31.html">arm_biquad_casd_df1_inst_q31</a> S5;</div>
<div class="line"> <span class="keywordtype">int</span> i;</div>
<div class="line"> int32_t <a name="a18"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"></div>
<div class="line"> inputF32 = &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[0];</div>
<div class="line"> outputF32 = &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a3293e83a154108a1d398bb042e293894">testOutput</a>[0];</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialize the state and coefficient buffers for all Biquad sections */</span></div>
<div class="line"></div>
<div class="line"> <a name="a19"></a><a class="code" href="group__BiquadCascadeDF1__32x64.html#ga426cd78591a717e87d66d1eaa9a3d074">arm_biquad_cas_df1_32x64_init_q31</a>(&S1, <a name="a20"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,</div>
<div class="line"> (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*0 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[0] + 9)],</div>
<div class="line"> &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a8e7062fa3f8b5ed9849566d16270f4ec">biquadStateBand1Q31</a>[0], 2);</div>
<div class="line"></div>
<div class="line"> <a class="code" href="group__BiquadCascadeDF1__32x64.html#ga426cd78591a717e87d66d1eaa9a3d074">arm_biquad_cas_df1_32x64_init_q31</a>(&S2, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,</div>
<div class="line"> (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*1 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[1] + 9)],</div>
<div class="line"> &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4a82090b15ebd0a45048d94f16131782">biquadStateBand2Q31</a>[0], 2);</div>
<div class="line"></div>
<div class="line"> <a name="a21"></a><a class="code" href="group__BiquadCascadeDF1.html#ga5563b156af44d1be2a7548626988bf4e">arm_biquad_cascade_df1_init_q31</a>(&S3, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,</div>
<div class="line"> (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*2 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[2] + 9)],</div>
<div class="line"> &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#ad487a54340631b764952fccf599adc8a">biquadStateBand3Q31</a>[0], 2);</div>
<div class="line"></div>
<div class="line"> <a class="code" href="group__BiquadCascadeDF1.html#ga5563b156af44d1be2a7548626988bf4e">arm_biquad_cascade_df1_init_q31</a>(&S4, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,</div>
<div class="line"> (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*3 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[3] + 9)],</div>
<div class="line"> &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a122ed5f6d8665139fbe9424a073b3474">biquadStateBand4Q31</a>[0], 2);</div>
<div class="line"></div>
<div class="line"> <a class="code" href="group__BiquadCascadeDF1.html#ga5563b156af44d1be2a7548626988bf4e">arm_biquad_cascade_df1_init_q31</a>(&S5, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,</div>
<div class="line"> (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*4 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[4] + 9)],</div>
<div class="line"> &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af88658a8c5f87eeea26da30305921b59">biquadStateBand5Q31</a>[0], 2);</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Call the process functions and needs to change filter coefficients</span></div>
<div class="line"><span class="comment"> for varying the gain of each band */</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">for</span>(i=0; i < <a name="a22"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a814e34126e1b8150f4de047e1a9e7030">NUMBLOCKS</a>; i++)</div>
<div class="line"> {</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Convert block of input data from float to Q31</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a23"></a><a class="code" href="group__float__to__x.html#gaae21be47db707e79552f3e8221a48fb0">arm_float_to_q31</a>(inputF32 + (i*<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>), <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, BLOCKSIZE);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Scale down by 1/8. This provides additional headroom so that the</span></div>
<div class="line"><span class="comment"> ** graphic EQ can apply gain.</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a24"></a><a class="code" href="group__BasicScale.html#ga8b2b6ea2e39ca464e8f2cfdd937c022b">arm_scale_q31</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, 0x7FFFFFFF, -3, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Q31 Biquad Cascade DF1 32x64 process function for band1, band2</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a25"></a><a class="code" href="group__BiquadCascadeDF1__32x64.html#ga953a83e69685de6575cff37feb358a93">arm_biquad_cas_df1_32x64_q31</a>(&S1, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"> <a class="code" href="group__BiquadCascadeDF1__32x64.html#ga953a83e69685de6575cff37feb358a93">arm_biquad_cas_df1_32x64_q31</a>(&S2, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Call the Q31 Biquad Cascade DF1 process function for band3, band4, band5</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a26"></a><a class="code" href="group__BiquadCascadeDF1.html#ga4e7dad0ee6949005909fd4fcf1249b79">arm_biquad_cascade_df1_q31</a>(&S3, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"> <a class="code" href="group__BiquadCascadeDF1.html#ga4e7dad0ee6949005909fd4fcf1249b79">arm_biquad_cascade_df1_q31</a>(&S4, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"> <a class="code" href="group__BiquadCascadeDF1.html#ga4e7dad0ee6949005909fd4fcf1249b79">arm_biquad_cascade_df1_q31</a>(&S5, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Convert Q31 result back to float</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a27"></a><a class="code" href="group__q31__to__x.html#ga19a9d023aca1f99abd5da6f13a42b6cf">arm_q31_to_float</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, outputF32 + (i * <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>), BLOCKSIZE);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Scale back up</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a28"></a><a class="code" href="group__BasicScale.html#ga5e769c8e22da173674c6abca7291e713">arm_scale_f32</a>(outputF32 + (i * <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>), 8.0f, outputF32 + (i * BLOCKSIZE), BLOCKSIZE);</div>
<div class="line"> };</div>
<div class="line"></div>
<div class="line"> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af06013f588a7003278de222913c9d819">snr</a> = <a name="a29"></a><a class="code" href="arm__convolution__example_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9cbbafa975d67bc8ee8ea3260fdd5638">testRefOutput_f32</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a3293e83a154108a1d398bb042e293894">testOutput</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af06013f588a7003278de222913c9d819">snr</a> < <a name="a30"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af7d1dd4deffa8e7ed6429e5dd0fe1812">SNR_THRESHOLD_F32</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a31"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">else</span></div>
<div class="line"> {</div>
<div class="line"> status = <a name="a32"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Loop here if the signal does not match the reference output.</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
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<div class="title">arm_linear_interp_example_f32.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_linear_interp_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code demonstrating usage of sin function</span></div>
<div class="line"><span class="comment">* and uses linear interpolation to get higher precision</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "math_helper.h"</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define SNR_THRESHOLD 90</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define TEST_LENGTH_SAMPLES 10</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define XSPACING (0.00005f)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Test input data for F32 SIN function</span></div>
<div class="line"><span class="comment">* Generated by the MATLAB rand() function</span></div>
<div class="line"><span class="comment">* randn('state', 0)</span></div>
<div class="line"><span class="comment">* xi = (((1/4.18318581819710)* randn(blockSize, 1) * 2* pi));</span></div>
<div class="line"><span class="comment">* --------------------------------------------------------------------*/</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a4be0c4d25e63ce04b8cc8ad070805287">testInputSin_f32</a>[<a name="a1"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>] =</div>
<div class="line">{</div>
<div class="line"> -0.649716504673081170, -2.501723745497831200,</div>
<div class="line"> 0.188250329003310100, 0.432092748487532540,</div>
<div class="line"> -1.722010988459680800, 1.788766476323060600,</div>
<div class="line"> 1.786136060975809500, -0.056525543169408797,</div>
<div class="line"> 0.491596272728153760, 0.262309671126153390</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Reference out of SIN F32 function for Block Size = 10</span></div>
<div class="line"><span class="comment">* Calculated from sin(testInputSin_f32)</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a5a33218d422603f3e5267b6984bdddd1">testRefSinOutput32_f32</a>[<a class="code" href="arm__linear__interp__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>] =</div>
<div class="line">{</div>
<div class="line"> -0.604960695383043530, -0.597090287967934840,</div>
<div class="line"> 0.187140422442966500, 0.418772124875992690,</div>
<div class="line"> -0.988588831792106880, 0.976338412038794010,</div>
<div class="line"> 0.976903856413481100, -0.056495446835214236,</div>
<div class="line"> 0.472033731854734240, 0.259311907228582830</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Method 1: Test out Buffer Calculated from Cubic Interpolation</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[<a class="code" href="arm__linear__interp__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Method 2: Test out buffer Calculated from Linear Interpolation</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a4"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a8ca7d0ad6e04efed464bcaacedacf925">testLinIntOutput</a>[<a class="code" href="arm__linear__interp__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* External table used for linear interpolation</span></div>
<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div>
<div class="line"><span class="keyword">extern</span> <span class="keywordtype">float</span> <a name="a5"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a1a5a6c95f39221fcf8129fe478f54696">arm_linear_interep_table</a>[188495];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Global Variables for caluclating SNR's for Method1 & Method 2</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#ad492c21cf2dd4e9199ae46c77f812cbc">snr1</a>;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a7"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a269948ab25f230d33e3f22eab85aa1cf">snr2</a>;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Calculation of Sine values from Cubic Interpolation and Linear interpolation</span></div>
<div class="line"><span class="comment">* ---------------------------------------------------------------------------- */</span></div>
<div class="line">int32_t <a name="a8"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> uint32_t i;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a9"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"></div>
<div class="line"> <a name="_a10"></a><a class="code" href="structarm__linear__interp__instance__f32.html">arm_linear_interp_instance_f32</a> S = {188495, -3.141592653589793238, <a name="a11"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a0ecae49cebd837aac53411c8f877503d">XSPACING</a>, &<a class="code" href="arm__linear__interp__example__f32_8c.html#a1a5a6c95f39221fcf8129fe478f54696">arm_linear_interep_table</a>[0]};</div>
<div class="line"></div>
<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Method 1: Test out Calculated from Cubic Interpolation</span></div>
<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div>
<div class="line"> <span class="keywordflow">for</span>(i=0; i< <a class="code" href="arm__linear__interp__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>; i++)</div>
<div class="line"> {</div>
<div class="line"> <a class="code" href="arm__linear__interp__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[i] = <a name="a12"></a><a class="code" href="group__sin.html#gae164899c4a3fc0e946dc5d55555fe541">arm_sin_f32</a>(<a class="code" href="arm__linear__interp__example__f32_8c.html#a4be0c4d25e63ce04b8cc8ad070805287">testInputSin_f32</a>[i]);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Method 2: Test out Calculated from Cubic Interpolation and Linear interpolation</span></div>
<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">for</span>(i=0; i< <a class="code" href="arm__linear__interp__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>; i++)</div>
<div class="line"> {</div>
<div class="line"> <a class="code" href="arm__linear__interp__example__f32_8c.html#a8ca7d0ad6e04efed464bcaacedacf925">testLinIntOutput</a>[i] = <a name="a13"></a><a class="code" href="group__LinearInterpolate.html#ga5335f60532bab8cee1e7c22f76a41805">arm_linear_interp_f32</a>(&S, <a class="code" href="arm__linear__interp__example__f32_8c.html#a4be0c4d25e63ce04b8cc8ad070805287">testInputSin_f32</a>[i]);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * SNR calculation for method 1</span></div>
<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div>
<div class="line"> <a class="code" href="arm__linear__interp__example__f32_8c.html#ad492c21cf2dd4e9199ae46c77f812cbc">snr1</a> = <a name="a14"></a><a class="code" href="arm__convolution__example_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a>(<a class="code" href="arm__linear__interp__example__f32_8c.html#a5a33218d422603f3e5267b6984bdddd1">testRefSinOutput32_f32</a>, <a class="code" href="arm__linear__interp__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, 2);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * SNR calculation for method 2</span></div>
<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div>
<div class="line"> <a class="code" href="arm__linear__interp__example__f32_8c.html#a269948ab25f230d33e3f22eab85aa1cf">snr2</a> = <a class="code" href="arm__convolution__example_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a>(<a class="code" href="arm__linear__interp__example__f32_8c.html#a5a33218d422603f3e5267b6984bdddd1">testRefSinOutput32_f32</a>, <a class="code" href="arm__linear__interp__example__f32_8c.html#a8ca7d0ad6e04efed464bcaacedacf925">testLinIntOutput</a>, 2);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Initialise status depending on SNR calculations</span></div>
<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div>
<div class="line"> <span class="keywordflow">if</span> ( <a class="code" href="arm__linear__interp__example__f32_8c.html#a269948ab25f230d33e3f22eab85aa1cf">snr2</a> > <a class="code" href="arm__linear__interp__example__f32_8c.html#ad492c21cf2dd4e9199ae46c77f812cbc">snr1</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a15"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">else</span></div>
<div class="line"> {</div>
<div class="line"> status = <a name="a16"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Loop here if the signals fail the PASS check.</span></div>
<div class="line"><span class="comment"> ** This denotes a test failure</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
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<div class="title">arm_matrix_example_f32.c</div> </div>
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<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_matrix_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code demonstrating least square fit to data</span></div>
<div class="line"><span class="comment">* using matrix functions</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "math_helper.h"</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define SNR_THRESHOLD 90</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* --------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Test input data(Cycles) taken from FIR Q15 module for differant cases of blockSize</span></div>
<div class="line"><span class="comment">* and tapSize</span></div>
<div class="line"><span class="comment">* --------------------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__matrix__example__f32_8c.html#a974d5f0aace6a99e29ca767907fb3b9f">B_f32</a>[4] =</div>
<div class="line">{</div>
<div class="line"> 782.0, 7577.0, 470.0, 4505.0</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/* --------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Formula to fit is C1 + C2 * numTaps + C3 * blockSize + C4 * numTaps * blockSize</span></div>
<div class="line"><span class="comment">* -------------------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a1"></a><a class="code" href="arm__matrix__example__f32_8c.html#aed27b92d9847194d9dcce40cecf2b48a">A_f32</a>[16] =</div>
<div class="line">{</div>
<div class="line"> <span class="comment">/* Const, numTaps, blockSize, numTaps*blockSize */</span></div>
<div class="line"> 1.0, 32.0, 4.0, 128.0,</div>
<div class="line"> 1.0, 32.0, 64.0, 2048.0,</div>
<div class="line"> 1.0, 16.0, 4.0, 64.0,</div>
<div class="line"> 1.0, 16.0, 64.0, 1024.0,</div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Temporary buffers for storing intermediate values</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="comment">/* Transpose of A Buffer */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__matrix__example__f32_8c.html#a46dc2aa6dfc692af7b4a1379d7329ccd">AT_f32</a>[16];</div>
<div class="line"><span class="comment">/* (Transpose of A * A) Buffer */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__matrix__example__f32_8c.html#a867497c6bf86014513bf2ad3551aa896">ATMA_f32</a>[16];</div>
<div class="line"><span class="comment">/* Inverse(Transpose of A * A) Buffer */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a4"></a><a class="code" href="arm__matrix__example__f32_8c.html#a44425c149c52b326a3b7a77676686f00">ATMAI_f32</a>[16];</div>
<div class="line"><span class="comment">/* Test Output Buffer */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a5"></a><a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>[4];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Reference ouput buffer C1, C2, C3 and C4 taken from MATLAB</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__matrix__example__f32_8c.html#a6184758419722fa16bb883097c2f596b">xRef_f32</a>[4] = {73.0, 8.0, 21.25, 2.875};</div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a7"></a><a class="code" href="arm__matrix__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a>;</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Max magnitude FFT Bin test</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a8"></a><a class="code" href="arm__matrix__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"></div>
<div class="line"> <a name="_a9"></a><a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> A; <span class="comment">/* Matrix A Instance */</span></div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> AT; <span class="comment">/* Matrix AT(A transpose) instance */</span></div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> ATMA; <span class="comment">/* Matrix ATMA( AT multiply with A) instance */</span></div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> ATMAI; <span class="comment">/* Matrix ATMAI(Inverse of ATMA) instance */</span></div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> B; <span class="comment">/* Matrix B instance */</span></div>
<div class="line"> <a class="code" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a> X; <span class="comment">/* Matrix X(Unknown Matrix) instance */</span></div>
<div class="line"></div>
<div class="line"> uint32_t srcRows, srcColumns; <span class="comment">/* Temporary variables */</span></div>
<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a10"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialise A Matrix Instance with numRows, numCols and data array(A_f32) */</span></div>
<div class="line"> srcRows = 4;</div>
<div class="line"> srcColumns = 4;</div>
<div class="line"> <a name="a11"></a><a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&A, srcRows, srcColumns, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#aed27b92d9847194d9dcce40cecf2b48a">A_f32</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialise Matrix Instance AT with numRows, numCols and data array(AT_f32) */</span></div>
<div class="line"> srcRows = 4;</div>
<div class="line"> srcColumns = 4;</div>
<div class="line"> <a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&AT, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a46dc2aa6dfc692af7b4a1379d7329ccd">AT_f32</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* calculation of A transpose */</span></div>
<div class="line"> status = <a name="a12"></a><a class="code" href="group__MatrixTrans.html#gad7dd9f108429da13d3864696ceeec789">arm_mat_trans_f32</a>(&A, &AT);</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialise ATMA Matrix Instance with numRows, numCols and data array(ATMA_f32) */</span></div>
<div class="line"> srcRows = 4;</div>
<div class="line"> srcColumns = 4;</div>
<div class="line"> <a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&ATMA, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a867497c6bf86014513bf2ad3551aa896">ATMA_f32</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* calculation of AT Multiply with A */</span></div>
<div class="line"> status = <a name="a13"></a><a class="code" href="group__MatrixMult.html#ga917bf0270310c1d3f0eda1fc7c0026a0">arm_mat_mult_f32</a>(&AT, &A, &ATMA);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialise ATMAI Matrix Instance with numRows, numCols and data array(ATMAI_f32) */</span></div>
<div class="line"> srcRows = 4;</div>
<div class="line"> srcColumns = 4;</div>
<div class="line"> <a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&ATMAI, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a44425c149c52b326a3b7a77676686f00">ATMAI_f32</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* calculation of Inverse((Transpose(A) * A) */</span></div>
<div class="line"> status = <a name="a14"></a><a class="code" href="group__MatrixInv.html#ga542be7aabbf7a2297a4b62cf212910e3">arm_mat_inverse_f32</a>(&ATMA, &ATMAI);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* calculation of (Inverse((Transpose(A) * A)) * Transpose(A)) */</span></div>
<div class="line"> status = <a class="code" href="group__MatrixMult.html#ga917bf0270310c1d3f0eda1fc7c0026a0">arm_mat_mult_f32</a>(&ATMAI, &AT, &ATMA);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialise B Matrix Instance with numRows, numCols and data array(B_f32) */</span></div>
<div class="line"> srcRows = 4;</div>
<div class="line"> srcColumns = 1;</div>
<div class="line"> <a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&B, srcRows, srcColumns, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#a974d5f0aace6a99e29ca767907fb3b9f">B_f32</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialise X Matrix Instance with numRows, numCols and data array(X_f32) */</span></div>
<div class="line"> srcRows = 4;</div>
<div class="line"> srcColumns = 1;</div>
<div class="line"> <a class="code" href="group__MatrixInit.html#ga11e3dc41592a6401c13182fef9416a27">arm_mat_init_f32</a>(&X, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* calculation ((Inverse((Transpose(A) * A)) * Transpose(A)) * B) */</span></div>
<div class="line"> status = <a class="code" href="group__MatrixMult.html#ga917bf0270310c1d3f0eda1fc7c0026a0">arm_mat_mult_f32</a>(&ATMA, &B, &X);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Comparison of reference with test output */</span></div>
<div class="line"> <a class="code" href="arm__matrix__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> = <a name="a15"></a><a class="code" href="arm__convolution__example_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab">arm_snr_f32</a>((<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#a6184758419722fa16bb883097c2f596b">xRef_f32</a>, <a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>, 4);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Initialise status depending on SNR calculations</span></div>
<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div>
<div class="line"> <span class="keywordflow">if</span> ( <a class="code" href="arm__matrix__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> > <a name="a16"></a><a class="code" href="arm__matrix__example__f32_8c.html#af08ec3fef897d77c6817638bf0e0c5c6">SNR_THRESHOLD</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a17"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">else</span></div>
<div class="line"> {</div>
<div class="line"> status = <a name="a18"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> ** Loop here if the signals fail the PASS check.</span></div>
<div class="line"><span class="comment"> ** This denotes a test failure</span></div>
<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div>
<div class="line"> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
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<div class="title">arm_signal_converge_example_f32.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_signal_converge_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code demonstrating convergence of an adaptive</span></div>
<div class="line"><span class="comment">* filter.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"><span class="preprocessor">#include "math_helper.h"</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">** Global defines for the simulation</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#define TEST_LENGTH_SAMPLES 1536</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define NUMTAPS 32</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define BLOCKSIZE 32</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA_ERROR 0.000001f</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA_COEFF 0.0001f</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define MU 0.5f</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="preprocessor">#define NUMFRAMES (TEST_LENGTH_SAMPLES / BLOCKSIZE)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare FIR state buffers and structure</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a358ec4e79689e6d3787b89fe78bdb772">firStateF32</a>[<a name="a1"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a> + <a name="a2"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"><a name="_a3"></a><a class="code" href="structarm__fir__instance__f32.html">arm_fir_instance_f32</a> <a name="a4"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a652d3507a776117b4860b3e18f2d2d64">LPF_instance</a>;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare LMSNorm state buffers and structure</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a5"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a706980f6f654d199c61e08e7814bd0a1">lmsStateF32</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a> + <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a276e8a27484cf9389dabf047e76992ed">errOutput</a>[<a name="a7"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"><a name="_a8"></a><a class="code" href="structarm__lms__norm__instance__f32.html">arm_lms_norm_instance_f32</a> <a name="a9"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a519f9b4db839245f3bf2075ff4c17605">lmsNorm_instance</a>;</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Function Declarations for Signal Convergence Example</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a10"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#ac786d43cbc17bb09738447034ff8e22e">test_signal_converge_example</a>( <span class="keywordtype">void</span> );</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Internal functions</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a11"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a8f521e839d4fad24a4f12a18dfeae5d4">test_signal_converge</a>(<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* <a name="a12"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>,</div>
<div class="line"> uint32_t <a name="a13"></a><a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"><span class="keywordtype">void</span> <a name="a14"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#afd2975c4763ec935771e6f63bfe7758b">getinput</a>(<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* input,</div>
<div class="line"> uint32_t fr_cnt,</div>
<div class="line"> uint32_t <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* External Declarations for FIR F32 module Test</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a15"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#aac98609c83ad8ed2b05c4fd82d2ba59b">testInput_f32</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a16"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>[32];</div>
<div class="line"><span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a17"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#aede8780f021b7f5c33df0c5ee2183ee6">FIRCoeff_f32</a>[32];</div>
<div class="line"><span class="keyword">extern</span> <a class="code" href="structarm__lms__norm__instance__f32.html">arm_lms_norm_instance_f32</a> <a class="code" href="arm__signal__converge__example__f32_8c.html#a519f9b4db839245f3bf2075ff4c17605">lmsNorm_instance</a>;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare I/O buffers</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a18"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a19"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a4e370163c81ae2b72cc655a6b79e4c6a">wire2</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a20"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Signal converge test</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a21"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> uint32_t i;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a22"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"> uint32_t index;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> minValue;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialize the LMSNorm data structure */</span></div>
<div class="line"> <a name="a23"></a><a class="code" href="group__LMS__NORM.html#gac7ccbaea863882056eee815456464670">arm_lms_norm_init_f32</a>(&lmsNorm_instance, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#a706980f6f654d199c61e08e7814bd0a1">lmsStateF32</a>, <a name="a24"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a09bc9e6a44f0291cfcf578f2efcddfab">MU</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Initialize the FIR data structure */</span></div>
<div class="line"> <a name="a25"></a><a class="code" href="group__FIR.html#ga5afaa7b8e6735bbc19e582aa9755b0e1">arm_fir_init_f32</a>(&LPF_instance, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__signal__converge__example__f32_8c.html#aede8780f021b7f5c33df0c5ee2183ee6">FIRCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#a358ec4e79689e6d3787b89fe78bdb772">firStateF32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Loop over the frames of data and execute each of the processing</span></div>
<div class="line"><span class="comment"> * functions in the system.</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">for</span>(i=0; i < <a name="a26"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a4b6b859e1e3f6021a360390be287ca2c">NUMFRAMES</a>; i++)</div>
<div class="line"> {</div>
<div class="line"> <span class="comment">/* Read the input data - uniformly distributed random noise - into wire1 */</span></div>
<div class="line"> <a name="a27"></a><a class="code" href="group__copy.html#gaa6dfe9554ca61eb3d1eee498396bce88">arm_copy_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#aac98609c83ad8ed2b05c4fd82d2ba59b">testInput_f32</a> + (i * <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>), <a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>, BLOCKSIZE);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Execute the FIR processing function. Input wire1 and output wire2 */</span></div>
<div class="line"> <a name="a28"></a><a class="code" href="group__FIR.html#ga0cf008f650a75f5e2cf82d10691b64d9">arm_fir_f32</a>(&LPF_instance, <a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#a4e370163c81ae2b72cc655a6b79e4c6a">wire2</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Execute the LMS Norm processing function*/</span></div>
<div class="line"></div>
<div class="line"> <a name="a29"></a><a class="code" href="group__LMS__NORM.html#ga72b3755ed1cf97622851cbbeff83c69e">arm_lms_norm_f32</a>(&lmsNorm_instance, <span class="comment">/* LMSNorm instance */</span></div>
<div class="line"> <a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>, <span class="comment">/* Input signal */</span></div>
<div class="line"> <a class="code" href="arm__signal__converge__example__f32_8c.html#a4e370163c81ae2b72cc655a6b79e4c6a">wire2</a>, <span class="comment">/* Reference Signal */</span></div>
<div class="line"> <a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>, <span class="comment">/* Converged Signal */</span></div>
<div class="line"> <a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, <span class="comment">/* Error Signal, this will become small as the signal converges */</span></div>
<div class="line"> <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>); <span class="comment">/* BlockSize */</span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* apply overall gain */</span></div>
<div class="line"> <a name="a30"></a><a class="code" href="group__BasicScale.html#ga5e769c8e22da173674c6abca7291e713">arm_scale_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>, 5, <a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>); <span class="comment">/* in-place buffer */</span></div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> status = <a name="a31"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* -------------------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Test whether the error signal has reached towards 0.</span></div>
<div class="line"><span class="comment"> * ----------------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a32"></a><a class="code" href="group__BasicAbs.html#ga0e8fc7df3033cdbe9cda8a766a46e6d9">arm_abs_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
<div class="line"> <a name="a33"></a><a class="code" href="group__Min.html#ga514e2c920c432e1a3df2cb03f01d2797">arm_min_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>, &minValue, &index);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> (minValue > <a name="a34"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a6d3c6a4484dcaac72fbfe5100c39b9b6">DELTA_ERROR</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a35"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Test whether the filter coefficients have converged.</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <a name="a36"></a><a class="code" href="group__BasicSub.html#ga76b8b2aec34269c6de0b090cab00fb33">arm_sub_f32</a>((<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__signal__converge__example__f32_8c.html#aede8780f021b7f5c33df0c5ee2183ee6">FIRCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>);</div>
<div class="line"></div>
<div class="line"> <a class="code" href="group__BasicAbs.html#ga0e8fc7df3033cdbe9cda8a766a46e6d9">arm_abs_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>);</div>
<div class="line"> <a class="code" href="group__Min.html#ga514e2c920c432e1a3df2cb03f01d2797">arm_min_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>, &minValue, &index);</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> (minValue > <a name="a37"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a9156349d99957ded15d8aa3aa11723de">DELTA_COEFF</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment"> * Loop here if the signals did not pass the convergence check.</span></div>
<div class="line"><span class="comment"> * This denotes a test failure</span></div>
<div class="line"><span class="comment"> * ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
</div><!-- fragment --> </div><!-- contents -->
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<div class="header">
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<div class="title">arm_sin_cos_example_f32.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 12. March 2014</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_sin_cos_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code demonstrating sin and cos calculation of input signal.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment">* -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include <math.h></span></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Defines each of the tests performed</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="preprocessor">#define MAX_BLOCKSIZE 32</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA (0.0001f)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Test input data for Floating point sin_cos example for 32-blockSize</span></div>
<div class="line"><span class="comment">* Generated by the MATLAB randn() function</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a8b3b7113988efd5bf11a247d07ae39a1">testInput_f32</a>[<a name="a1"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>] =</div>
<div class="line">{</div>
<div class="line"> -1.244916875853235400, -4.793533929171324800, 0.360705030233248850, 0.827929644170887320, -3.299532218312426900, 3.427441903227623800, 3.422401784294607700, -0.108308165334010680,</div>
<div class="line"> 0.941943896490312180, 0.502609575000365850, -0.537345278736373500, 2.088817392965764500, -1.693168684143455700, 6.283185307179590700, -0.392545884746175080, 0.327893095115825040,</div>
<div class="line"> 3.070147440456292300, 0.170611405884662230, -0.275275082396073010, -2.395492805446796300, 0.847311163536506600, -3.845517018083148800, 2.055818378415868300, 4.672594161978930800,</div>
<div class="line"> -1.990923030266425800, 2.469305197656249500, 3.609002606064021000, -4.586736582331667500, -4.147080139136136300, 1.643756718868359500, -1.150866392366494800, 1.985805026477433800</div>
<div class="line"></div>
<div class="line"></div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a8bcb5c1f75ed5f1737e435f0de1850a3">testRefOutput_f32</a> = 1.000000000;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare Global variables</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line">uint32_t <a name="a3"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a> = 32;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a4"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">testOutput</a>;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a5"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a7"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a8"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Max magnitude FFT Bin test</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a9"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"></div>
<div class="line">int32_t <a name="a10"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> diff;</div>
<div class="line"> uint32_t i;</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">for</span>(i=0; i< <a class="code" href="arm__sin__cos__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>; i++)</div>
<div class="line"> {</div>
<div class="line"> <a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a> = <a name="a11"></a><a class="code" href="group__cos.html#gace15287f9c64b9b4084d1c797d4c49d8">arm_cos_f32</a>(<a class="code" href="arm__sin__cos__example__f32_8c.html#a8b3b7113988efd5bf11a247d07ae39a1">testInput_f32</a>[i]);</div>
<div class="line"> <a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a> = <a name="a12"></a><a class="code" href="group__sin.html#gae164899c4a3fc0e946dc5d55555fe541">arm_sin_f32</a>(<a class="code" href="arm__sin__cos__example__f32_8c.html#a8b3b7113988efd5bf11a247d07ae39a1">testInput_f32</a>[i]);</div>
<div class="line"></div>
<div class="line"> <a name="a13"></a><a class="code" href="group__BasicMult.html#gacf950935141cad927bea886e88fd9e9b">arm_mult_f32</a>(&<a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>, 1);</div>
<div class="line"> <a class="code" href="group__BasicMult.html#gacf950935141cad927bea886e88fd9e9b">arm_mult_f32</a>(&<a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>, 1);</div>
<div class="line"></div>
<div class="line"> <a name="a14"></a><a class="code" href="group__BasicAdd.html#gabfef1e86e458314a61f4baa441d9765e">arm_add_f32</a>(&<a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>, &<a class="code" href="arm__sin__cos__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">testOutput</a>, 1);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* absolute value of difference between ref and test */</span></div>
<div class="line"> diff = fabsf(<a class="code" href="arm__sin__cos__example__f32_8c.html#a8bcb5c1f75ed5f1737e435f0de1850a3">testRefOutput_f32</a> - <a class="code" href="arm__sin__cos__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">testOutput</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Comparison of sin_cos value with reference */</span></div>
<div class="line"> <span class="keywordflow">if</span> (diff > <a name="a15"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">DELTA</a>)</div>
<div class="line"> {</div>
<div class="line"> <a class="code" href="arm__sin__cos__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> = <a name="a16"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">if</span> ( <a class="code" href="arm__sin__cos__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> == <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line">}</div>
<div class="line"></div>
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<div class="title">arm_variance_example_f32.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* $Date: 17. January 2013</span></div>
<div class="line"><span class="comment">* $Revision: V1.4.0</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div>
<div class="line"><span class="comment">* Title: arm_variance_example_f32.c</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Description: Example code demonstrating variance calculation of input sequence.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
<div class="line"><span class="comment">* are met:</span></div>
<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div>
<div class="line"><span class="comment">* distribution.</span></div>
<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div>
<div class="line"><span class="comment">* software without specific prior written permission.</span></div>
<div class="line"><span class="comment">*</span></div>
<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><span class="comment">* -------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#include <math.h></span></div>
<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Defines each of the tests performed</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><span class="preprocessor">#define MAX_BLOCKSIZE 32</span></div>
<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA (0.000001f)</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare I/O buffers</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__variance__example__f32_8c.html#acc43b372d92d5027b9f9cac782c8b3c7">wire1</a>[<a name="a1"></a><a class="code" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>];</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a2"></a><a class="code" href="arm__variance__example__f32_8c.html#a41a9afab5be5ccd2e6f618b83102f0d1">wire2</a>[<a class="code" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>];</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a3"></a><a class="code" href="arm__variance__example__f32_8c.html#af61f43ad332a2322e43ced590b6d9768">wire3</a>[<a class="code" href="arm__variance__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>];</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Test input data for Floating point Variance example for 32-blockSize</span></div>
<div class="line"><span class="comment">* Generated by the MATLAB randn() function</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a4"></a><a class="code" href="arm__variance__example__f32_8c.html#a9170ec9e681e2b519fe9c46a30455841">testInput_f32</a>[32] =</div>
<div class="line">{</div>
<div class="line"> -0.432564811528221, -1.665584378238097, 0.125332306474831, 0.287676420358549,</div>
<div class="line"> -1.146471350681464, 1.190915465642999, 1.189164201652103, -0.037633276593318,</div>
<div class="line"> 0.327292361408654, 0.174639142820925, -0.186708577681439, 0.725790548293303,</div>
<div class="line"> -0.588316543014189, 2.183185818197101, -0.136395883086596, 0.113931313520810,</div>
<div class="line"> 1.066768211359189, 0.059281460523605, -0.095648405483669, -0.832349463650022,</div>
<div class="line"> 0.294410816392640, -1.336181857937804, 0.714324551818952, 1.623562064446271,</div>
<div class="line"> -0.691775701702287, 0.857996672828263, 1.254001421602532, -1.593729576447477,</div>
<div class="line"> -1.440964431901020, 0.571147623658178, -0.399885577715363, 0.689997375464345</div>
<div class="line"></div>
<div class="line">};</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Declare Global variables</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line">uint32_t <a name="a5"></a><a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a> = 32;</div>
<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__variance__example__f32_8c.html#a26cbbfe2a7905669e8440159465050df">refVarianceOut</a> = 0.903941793931839;</div>
<div class="line"></div>
<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
<div class="line"><span class="comment">* Variance calculation test</span></div>
<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
<div class="line"></div>
<div class="line">int32_t <a name="a7"></a><a class="code" href="arm__variance__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
<div class="line">{</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a8"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a9"></a><a class="code" href="arm__class__marks__example__f32_8c.html#acc9290716b3c97381ce52d14b4b01681">mean</a>, oneByBlockSize;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> variance;</div>
<div class="line"> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> diff;</div>
<div class="line"></div>
<div class="line"> status = <a name="a10"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#if defined(FILEIO)</span></div>
<div class="line"><span class="preprocessor"></span> printf(<span class="stringliteral">"START\n"</span>);</div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span></div>
<div class="line"> </div>
<div class="line"> <span class="comment">/* Calculation of mean value of input */</span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* x' = 1/blockSize * (x(0)* 1 + x(1) * 1 + ... + x(n-1) * 1) */</span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Fill wire1 buffer with 1.0 value */</span></div>
<div class="line"> <a name="a11"></a><a class="code" href="group__Fill.html#ga2248e8d3901b4afb7827163132baad94">arm_fill_f32</a>(1.0, <a class="code" href="arm__variance__example__f32_8c.html#acc43b372d92d5027b9f9cac782c8b3c7">wire1</a>, <a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Calculate the dot product of wire1 and wire2 */</span></div>
<div class="line"> <span class="comment">/* (x(0)* 1 + x(1) * 1 + ...+ x(n-1) * 1) */</span></div>
<div class="line"> <a name="a12"></a><a class="code" href="group__BasicDotProd.html#gadf26f6bc62d6416528663ad3e46fbf67">arm_dot_prod_f32</a>(<a class="code" href="arm__variance__example__f32_8c.html#a9170ec9e681e2b519fe9c46a30455841">testInput_f32</a>, <a class="code" href="arm__variance__example__f32_8c.html#acc43b372d92d5027b9f9cac782c8b3c7">wire1</a>, <a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, &mean);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Calculation of 1/blockSize */</span></div>
<div class="line"> oneByBlockSize = 1.0 / (<a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* 1/blockSize * (x(0)* 1 + x(1) * 1 + ... + x(n-1) * 1) */</span></div>
<div class="line"> <a name="a13"></a><a class="code" href="group__BasicMult.html#gacf950935141cad927bea886e88fd9e9b">arm_mult_f32</a>(&mean, &oneByBlockSize, &mean, 1);</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Calculation of variance value of input */</span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* (1/blockSize) * (x(0) - x') * (x(0) - x') + (x(1) - x') * (x(1) - x') + ... + (x(n-1) - x') * (x(n-1) - x') */</span></div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Fill wire2 with mean value x' */</span></div>
<div class="line"> <a class="code" href="group__Fill.html#ga2248e8d3901b4afb7827163132baad94">arm_fill_f32</a>(mean, <a class="code" href="arm__variance__example__f32_8c.html#a41a9afab5be5ccd2e6f618b83102f0d1">wire2</a>, <a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* wire3 contains (x-x') */</span></div>
<div class="line"> <a name="a14"></a><a class="code" href="group__BasicSub.html#ga76b8b2aec34269c6de0b090cab00fb33">arm_sub_f32</a>(<a class="code" href="arm__variance__example__f32_8c.html#a9170ec9e681e2b519fe9c46a30455841">testInput_f32</a>, <a class="code" href="arm__variance__example__f32_8c.html#a41a9afab5be5ccd2e6f618b83102f0d1">wire2</a>, <a class="code" href="arm__variance__example__f32_8c.html#af61f43ad332a2322e43ced590b6d9768">wire3</a>, <a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* wire2 contains (x-x') */</span></div>
<div class="line"> <a name="a15"></a><a class="code" href="group__copy.html#gaa6dfe9554ca61eb3d1eee498396bce88">arm_copy_f32</a>(<a class="code" href="arm__variance__example__f32_8c.html#af61f43ad332a2322e43ced590b6d9768">wire3</a>, <a class="code" href="arm__variance__example__f32_8c.html#a41a9afab5be5ccd2e6f618b83102f0d1">wire2</a>, <a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* (x(0) - x') * (x(0) - x') + (x(1) - x') * (x(1) - x') + ... + (x(n-1) - x') * (x(n-1) - x') */</span></div>
<div class="line"> <a class="code" href="group__BasicDotProd.html#gadf26f6bc62d6416528663ad3e46fbf67">arm_dot_prod_f32</a>(<a class="code" href="arm__variance__example__f32_8c.html#a41a9afab5be5ccd2e6f618b83102f0d1">wire2</a>, <a class="code" href="arm__variance__example__f32_8c.html#af61f43ad332a2322e43ced590b6d9768">wire3</a>, <a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>, &variance);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Calculation of 1/blockSize */</span></div>
<div class="line"> oneByBlockSize = 1.0 / (<a class="code" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a> - 1);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Calculation of variance */</span></div>
<div class="line"> <a class="code" href="group__BasicMult.html#gacf950935141cad927bea886e88fd9e9b">arm_mult_f32</a>(&variance, &oneByBlockSize, &variance, 1);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* absolute value of difference between ref and test */</span></div>
<div class="line"> diff = fabsf(<a class="code" href="arm__variance__example__f32_8c.html#a26cbbfe2a7905669e8440159465050df">refVarianceOut</a> - variance);</div>
<div class="line"></div>
<div class="line"> <span class="comment">/* Comparison of variance value with reference */</span></div>
<div class="line"> </div>
<div class="line"> <span class="keywordflow">if</span> (diff > <a name="a16"></a><a class="code" href="arm__variance__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">DELTA</a>)</div>
<div class="line"> {</div>
<div class="line"> status = <a name="a17"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"></div>
<div class="line"><span class="preprocessor">#if !defined(FILEIO)</span></div>
<div class="line"><span class="preprocessor"></span> <span class="keywordflow">if</span> ( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> <span class="keywordflow">while</span> (1);</div>
<div class="line"> }</div>
<div class="line"></div>
<div class="line"> <span class="keywordflow">while</span> (1); <span class="comment">/* main function does not return */</span></div>
<div class="line"><span class="preprocessor">#else</span></div>
<div class="line"><span class="preprocessor"></span> <span class="keywordflow">if</span> (status == <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
<div class="line"> {</div>
<div class="line"> printf(<span class="stringliteral">"SUCCESS\n"</span>);</div>
<div class="line"> }</div>
<div class="line"> <span class="keywordflow">else</span></div>
<div class="line"> {</div>
<div class="line"> printf(<span class="stringliteral">"FAILURE\n"</span>);</div>
<div class="line"> }</div>
<div class="line"><span class="preprocessor">#endif</span></div>
<div class="line"><span class="preprocessor"></span>}</div>
<div class="line"></div>
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</td><td valign="top"><a class="el" href="structarm__cfft__instance__q15.html">arm_cfft_instance_q15</a>   </td><td valign="top"><a class="el" href="structarm__fir__decimate__instance__q15.html">arm_fir_decimate_instance_q15</a>   </td><td rowspan="2" valign="bottom"><a name="letter_i"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">  i  </div></td></tr></table>
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</td></tr>
<tr><td valign="top"><a class="el" href="structarm__bilinear__interp__instance__q31.html">arm_bilinear_interp_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__cfft__radix2__instance__q31.html">arm_cfft_radix2_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__fir__instance__q31.html">arm_fir_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__iir__lattice__instance__q31.html">arm_iir_lattice_instance_q31</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__bilinear__interp__instance__q7.html">arm_bilinear_interp_instance_q7</a>   </td><td valign="top"><a class="el" href="structarm__cfft__radix4__instance__f32.html">arm_cfft_radix4_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__fir__instance__q7.html">arm_fir_instance_q7</a>   </td><td rowspan="2" valign="bottom"><a name="letter_l"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">  l  </div></td></tr></table>
</td><td valign="top"><a class="el" href="structarm__pid__instance__f32.html">arm_pid_instance_f32</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__biquad__cas__df1__32x64__ins__q31.html">arm_biquad_cas_df1_32x64_ins_q31</a>   </td><td valign="top"><a class="el" href="structarm__cfft__radix4__instance__q15.html">arm_cfft_radix4_instance_q15</a>   </td><td valign="top"><a class="el" href="structarm__fir__interpolate__instance__f32.html">arm_fir_interpolate_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__pid__instance__q15.html">arm_pid_instance_q15</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__biquad__cascade__df2T__instance__f32.html">arm_biquad_cascade_df2T_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__cfft__radix4__instance__q31.html">arm_cfft_radix4_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__fir__interpolate__instance__q15.html">arm_fir_interpolate_instance_q15</a>   </td><td valign="top"><a class="el" href="structarm__linear__interp__instance__f32.html">arm_linear_interp_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__pid__instance__q31.html">arm_pid_instance_q31</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__biquad__cascade__df2T__instance__f64.html">arm_biquad_cascade_df2T_instance_f64</a>   </td><td rowspan="2" valign="bottom"><a name="letter_d"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">  d  </div></td></tr></table>
</td><td valign="top"><a class="el" href="structarm__fir__interpolate__instance__q31.html">arm_fir_interpolate_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__lms__instance__f32.html">arm_lms_instance_f32</a>   </td><td rowspan="2" valign="bottom"><a name="letter_r"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">  r  </div></td></tr></table>
</td></tr>
<tr><td valign="top"><a class="el" href="structarm__biquad__cascade__stereo__df2T__instance__f32.html">arm_biquad_cascade_stereo_df2T_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__fir__lattice__instance__f32.html">arm_fir_lattice_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__lms__instance__q15.html">arm_lms_instance_q15</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__biquad__casd__df1__inst__f32.html">arm_biquad_casd_df1_inst_f32</a>   </td><td valign="top"><a class="el" href="structarm__dct4__instance__f32.html">arm_dct4_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__fir__lattice__instance__q15.html">arm_fir_lattice_instance_q15</a>   </td><td valign="top"><a class="el" href="structarm__lms__instance__q31.html">arm_lms_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__rfft__fast__instance__f32.html">arm_rfft_fast_instance_f32</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__biquad__casd__df1__inst__q15.html">arm_biquad_casd_df1_inst_q15</a>   </td><td valign="top"><a class="el" href="structarm__dct4__instance__q15.html">arm_dct4_instance_q15</a>   </td><td valign="top"><a class="el" href="structarm__fir__lattice__instance__q31.html">arm_fir_lattice_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__lms__norm__instance__f32.html">arm_lms_norm_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__rfft__instance__f32.html">arm_rfft_instance_f32</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__biquad__casd__df1__inst__q31.html">arm_biquad_casd_df1_inst_q31</a>   </td><td valign="top"><a class="el" href="structarm__dct4__instance__q31.html">arm_dct4_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__fir__sparse__instance__f32.html">arm_fir_sparse_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__lms__norm__instance__q15.html">arm_lms_norm_instance_q15</a>   </td><td valign="top"><a class="el" href="structarm__rfft__instance__q15.html">arm_rfft_instance_q15</a>   </td></tr>
<tr><td rowspan="2" valign="bottom"><a name="letter_c"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">  c  </div></td></tr></table>
</td><td rowspan="2" valign="bottom"><a name="letter_f"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">  f  </div></td></tr></table>
</td><td valign="top"><a class="el" href="structarm__fir__sparse__instance__q15.html">arm_fir_sparse_instance_q15</a>   </td><td valign="top"><a class="el" href="structarm__lms__norm__instance__q31.html">arm_lms_norm_instance_q31</a>   </td><td valign="top"><a class="el" href="structarm__rfft__instance__q31.html">arm_rfft_instance_q31</a>   </td></tr>
<tr><td valign="top"><a class="el" href="structarm__fir__sparse__instance__q31.html">arm_fir_sparse_instance_q31</a>   </td><td rowspan="2" valign="bottom"><a name="letter_m"></a><table border="0" cellspacing="0" cellpadding="0"><tr><td><div class="ah">  m  </div></td></tr></table>
</td><td></td></tr>
<tr><td valign="top"><a class="el" href="structarm__cfft__instance__f32.html">arm_cfft_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__fir__decimate__instance__f32.html">arm_fir_decimate_instance_f32</a>   </td><td valign="top"><a class="el" href="structarm__fir__sparse__instance__q7.html">arm_fir_sparse_instance_q7</a>   </td><td></td></tr>
<tr><td></td><td></td><td></td><td valign="top"><a class="el" href="structarm__matrix__instance__f32.html">arm_matrix_instance_f32</a>   </td><td></td></tr>
<tr><td></td><td></td><td></td><td></td><td></td></tr>
</table>
<div class="qindex"><a class="qindex" href="#letter_B">B</a> | <a class="qindex" href="#letter_C">C</a> | <a class="qindex" href="#letter_D">D</a> | <a class="qindex" href="#letter_F">F</a> | <a class="qindex" href="#letter_I">I</a> | <a class="qindex" href="#letter_L">L</a> | <a class="qindex" href="#letter_M">M</a> | <a class="qindex" href="#letter_P">P</a> | <a class="qindex" href="#letter_R">R</a></div>
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| YifuLiu/AliOS-Things | components/cmsis/docs/DSP/html/classes.html | HTML | apache-2.0 | 17,557 |
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| YifuLiu/AliOS-Things | components/cmsis/docs/DSP/html/cmsis.css | CSS | apache-2.0 | 20,795 |
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<title>CMSIS-DSP: Deprecated List</title>
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<td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
<td style="padding-left: 0.5em;">
<div id="projectname">CMSIS-DSP
 <span id="projectnumber">Version 1.7.0</span>
</div>
<div id="projectbrief">CMSIS DSP Software Library</div>
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</div><!--header-->
<div class="contents">
<div class="textblock"><dl class="reflist">
<dt><a class="anchor" id="_deprecated000001"></a>Global <a class="el" href="arm__math_8h.html#a9de2e0a5785be82866bcb96012282248">__SIMD32</a> (addr)</dt>
<dd></dd>
<dt><a class="anchor" id="_deprecated000002"></a>Global <a class="el" href="group__ComplexFFT.html#ga9fadd650b802f612ae558ddaab789a6d">arm_cfft_radix2_f32</a> (const <a class="el" href="structarm__cfft__radix2__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix2_instance_f32</a> *S, float32_t *pSrc)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the floating-point Radix-2 CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000003"></a>Global <a class="el" href="group__ComplexFFT.html#gac9565e6bc7229577ecf5e090313cafd7">arm_cfft_radix2_init_f32</a> (<a class="el" href="structarm__cfft__radix2__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix2_instance_f32</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the floating-point CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
<li>value = 0: forward transform</li>
<li>value = 1: inverse transform </li>
</ul>
</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
<li>value = 0: disables bit reversal of output</li>
<li>value = 1: enables bit reversal of output </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
</ul>
</dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000004"></a>Global <a class="el" href="group__ComplexFFT.html#ga5c5b2127b3c4ea2d03692127f8543858">arm_cfft_radix2_init_q15</a> (<a class="el" href="structarm__cfft__radix2__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q15</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q15 CFFT/CIFFT structure. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
<li>value = 0: forward transform</li>
<li>value = 1: inverse transform </li>
</ul>
</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
<li>value = 0: disables bit reversal of output</li>
<li>value = 1: enables bit reversal of output </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
</ul>
</dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000005"></a>Global <a class="el" href="group__ComplexFFT.html#gabec9611e77382f31e152668bf6b4b638">arm_cfft_radix2_init_q31</a> (<a class="el" href="structarm__cfft__radix2__instance__q31.html" title="Instance structure for the Radix-2 Q31 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q31</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q31 CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
<li>value = 0: forward transform</li>
<li>value = 1: inverse transform </li>
</ul>
</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
<li>value = 0: disables bit reversal of output</li>
<li>value = 1: enables bit reversal of output </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
</ul>
</dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000006"></a>Global <a class="el" href="group__ComplexFFT.html#ga55b424341dc3efd3fa0bcaaff4bdbf40">arm_cfft_radix2_q15</a> (const <a class="el" href="structarm__cfft__radix2__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q15</a> *S, q15_t *pSrc)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the fixed-point CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000007"></a>Global <a class="el" href="group__ComplexFFT.html#ga6321f703ec87a274aedaab33d3e766b4">arm_cfft_radix2_q31</a> (const <a class="el" href="structarm__cfft__radix2__instance__q31.html" title="Instance structure for the Radix-2 Q31 CFFT/CIFFT function. ">arm_cfft_radix2_instance_q31</a> *S, q31_t *pSrc)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the fixed-point CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000008"></a>Global <a class="el" href="group__ComplexFFT.html#ga521f670cd9c571bc61aff9bec89f4c26">arm_cfft_radix4_f32</a> (const <a class="el" href="structarm__cfft__radix4__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix4_instance_f32</a> *S, float32_t *pSrc)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the floating-point Radix-4 CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000009"></a>Global <a class="el" href="group__ComplexFFT.html#gaf336459f684f0b17bfae539ef1b1b78a">arm_cfft_radix4_init_f32</a> (<a class="el" href="structarm__cfft__radix4__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix4_instance_f32</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
<dd>Do not use this function. It has been superceded by <a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the floating-point CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
<li>value = 0: forward transform</li>
<li>value = 1: inverse transform </li>
</ul>
</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
<li>value = 0: disables bit reversal of output</li>
<li>value = 1: enables bit reversal of output </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
</ul>
</dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000010"></a>Global <a class="el" href="group__ComplexFFT.html#ga0c2acfda3126c452e75b81669e8ad9ef">arm_cfft_radix4_init_q15</a> (<a class="el" href="structarm__cfft__radix4__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q15</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q15 CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
<li>value = 0: forward transform</li>
<li>value = 1: inverse transform </li>
</ul>
</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
<li>value = 0: disables bit reversal of output</li>
<li>value = 1: enables bit reversal of output </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
</ul>
</dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000011"></a>Global <a class="el" href="group__ComplexFFT.html#gad5caaafeec900c8ff72321c01bbd462c">arm_cfft_radix4_init_q31</a> (<a class="el" href="structarm__cfft__radix4__instance__q31.html" title="Instance structure for the Q31 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q31</a> *S, uint16_t fftLen, uint8_t ifftFlag, uint8_t bitReverseFlag)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the Q31 CFFT/CIFFT structure. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ifftFlag</td><td>flag that selects transform direction<ul>
<li>value = 0: forward transform</li>
<li>value = 1: inverse transform </li>
</ul>
</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
<li>value = 0: disables bit reversal of output</li>
<li>value = 1: enables bit reversal of output </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLen</code> is not a supported length </li>
</ul>
</dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000012"></a>Global <a class="el" href="group__ComplexFFT.html#ga8d66cdac41b8bf6cefdb895456eee84a">arm_cfft_radix4_q15</a> (const <a class="el" href="structarm__cfft__radix4__instance__q15.html" title="Instance structure for the Q15 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q15</a> *S, q15_t *pSrc)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the Q15 CFFT/CIFFT structure. </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer. Processing occurs in-place. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000013"></a>Global <a class="el" href="group__ComplexFFT.html#gafde3ee1f58cf393b45a9073174fff548">arm_cfft_radix4_q31</a> (const <a class="el" href="structarm__cfft__radix4__instance__q31.html" title="Instance structure for the Q31 CFFT/CIFFT function. ">arm_cfft_radix4_instance_q31</a> *S, q31_t *pSrc)</dt>
<dd>Do not use this function. It has been superseded by <a class="el" href="group__ComplexFFT.html#ga5a0008bd997ab6e2e299ef2fb272fb4b">arm_cfft_q31</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the Q31 CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to the complex data buffer of size <code>2*fftLen</code>. Processing occurs in-place </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000014"></a>Global <a class="el" href="group__RealFFT.html#ga3df1766d230532bc068fc4ed69d0fcdc">arm_rfft_f32</a> (const <a class="el" href="structarm__rfft__instance__f32.html" title="Instance structure for the floating-point RFFT/RIFFT function. ">arm_rfft_instance_f32</a> *S, float32_t *pSrc, float32_t *pDst)</dt>
<dd>Do not use this function. It has been superceded by <a class="el" href="group__RealFFT.html#ga180d8b764d59cbb85d37a2d5f7cd9799">arm_rfft_fast_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">S</td><td>points to an instance of the floating-point RFFT/RIFFT structure </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to the input buffer </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output buffer </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
</dd>
<dt><a class="anchor" id="_deprecated000015"></a>Global <a class="el" href="group__RealFFT.html#ga10717ee326bf50832ef1c25b85a23068">arm_rfft_init_f32</a> (<a class="el" href="structarm__rfft__instance__f32.html" title="Instance structure for the floating-point RFFT/RIFFT function. ">arm_rfft_instance_f32</a> *S, <a class="el" href="structarm__cfft__radix4__instance__f32.html" title="Instance structure for the floating-point CFFT/CIFFT function. ">arm_cfft_radix4_instance_f32</a> *S_CFFT, uint32_t fftLenReal, uint32_t ifftFlagR, uint32_t bitReverseFlag)</dt>
<dd>Do not use this function. It has been superceded by <a class="el" href="group__RealFFT.html#gac5fceb172551e7c11eb4d0e17ef15aa3">arm_rfft_fast_init_f32</a> and will be removed in the future. <dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in,out]</td><td class="paramname">S</td><td>points to an instance of the floating-point RFFT/RIFFT structure </td></tr>
<tr><td class="paramdir">[in,out]</td><td class="paramname">S_CFFT</td><td>points to an instance of the floating-point CFFT/CIFFT structure </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">fftLenReal</td><td>length of the FFT. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ifftFlagR</td><td>flag that selects transform direction<ul>
<li>value = 0: forward transform</li>
<li>value = 1: inverse transform </li>
</ul>
</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">bitReverseFlag</td><td>flag that enables / disables bit reversal of output<ul>
<li>value = 0: disables bit reversal of output</li>
<li>value = 1: enables bit reversal of output </li>
</ul>
</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a> : Operation successful</li>
<li><a class="el" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a74897e18d4b8f62b12a7d8a01dd2bb35">ARM_MATH_ARGUMENT_ERROR</a> : <code>fftLenReal</code> is not a supported length</li>
</ul>
</dd></dl>
</dd>
</dl>
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