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Rates : out Angle_Rates)
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is
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Ctrl4 : UInt8;
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UInt8s_To_Read : constant Integer := 6; -- ie, three 2-UInt8 integers
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-- the number of UInt8s in an Angle_Rates record object
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Received : SPI_Data_8b (1 .. UInt8s_To_Read);
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begin
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Read (This, CTRL_REG4, Ctrl4);
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Read_UInt8s (This, OUT_X_L, Received, UInt8s_To_Read);
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-- The above has the effect of separate reads, as follows:
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-- Read (This, OUT_X_L, Received (1));
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-- Read (This, OUT_X_H, Received (2));
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-- Read (This, OUT_Y_L, Received (3));
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-- Read (This, OUT_Y_H, Received (4));
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-- Read (This, OUT_Z_L, Received (5));
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-- Read (This, OUT_Z_H, Received (6));
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if (Ctrl4 and Endian_Selection_Mask) = L3GD20_Big_Endian'Enum_Rep then
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Swap2 (Received (1)'Address);
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Swap2 (Received (3)'Address);
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Swap2 (Received (5)'Address);
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end if;
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Rates.X := As_Angle_Rate_Pointer (Received (1)'Address).all;
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Rates.Y := As_Angle_Rate_Pointer (Received (3)'Address).all;
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Rates.Z := As_Angle_Rate_Pointer (Received (5)'Address).all;
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end Get_Raw_Angle_Rates;
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--------------------------
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-- Configure_Interrupt1 --
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--------------------------
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procedure Configure_Interrupt1
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(This : in out Three_Axis_Gyroscope;
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Triggers : Threshold_Event_List;
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Latched : Boolean := False;
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Active_Edge : Interrupt1_Active_Edge := L3GD20_Interrupt1_High_Edge;
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Combine_Events : Boolean := False;
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Sample_Count : Sample_Counter := 0)
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is
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Config : UInt8;
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Ctrl3 : UInt8;
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begin
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Read (This, CTRL_REG3, Ctrl3);
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Ctrl3 := Ctrl3 and 16#DF#;
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Ctrl3 := Ctrl3 or Active_Edge'Enum_Rep;
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Ctrl3 := Ctrl3 or INT1_Interrupt_Enable;
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Write (This, CTRL_REG3, Ctrl3);
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if Sample_Count > 0 then
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Set_Duration_Counter (This, Sample_Count);
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end if;
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Config := 0;
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if Latched then
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Config := Config or Int1_Latch_Enable_Bit;
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end if;
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if Combine_Events then
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Config := Config or Logically_And_Or_Events_Bit;
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end if;
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for Event of Triggers loop
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Config := Config or Axes_Interrupt_Enablers (Event.Axis);
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end loop;
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Write (This, INT1_CFG, Config);
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for Event of Triggers loop
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Set_Threshold (This, Event.Axis, Event.Threshold);
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end loop;
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end Configure_Interrupt1;
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----------------------------
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-- Set_Interrupt_Pin_Mode --
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----------------------------
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procedure Set_Interrupt_Pin_Mode
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(This : in out Three_Axis_Gyroscope;
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Mode : Pin_Modes)
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is
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Ctrl3 : UInt8;
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begin
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Read (This, CTRL_REG3, Ctrl3);
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Ctrl3 := Ctrl3 and (not Interrupt_Pin_Mode_Bit);
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Ctrl3 := Ctrl3 or Mode'Enum_Rep;
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Write (This, CTRL_REG3, Ctrl3);
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end Set_Interrupt_Pin_Mode;
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-----------------------
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-- Enable_Interrupt1 --
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-----------------------
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procedure Enable_Interrupt1 (This : in out Three_Axis_Gyroscope) is
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