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else
raise Unknown_Device;
end if;
end Enable_Clock;
-----------
-- Reset --
-----------
procedure Reset (This : in out Timer) is
begin
if This'Address = TIM1_Base then
RCC_Periph.APB2RSTR.TIM1RST := True;
RCC_Periph.APB2RSTR.TIM1RST := False;
elsif This'Address = TIM2_Base then
RCC_Periph.APB1RSTR.TIM2RST := True;
RCC_Periph.APB1RSTR.TIM2RST := False;
elsif This'Address = TIM3_Base then
RCC_Periph.APB1RSTR.TIM3RST := True;
RCC_Periph.APB1RSTR.TIM3RST := False;
elsif This'Address = TIM4_Base then
RCC_Periph.APB1RSTR.TIM4RST := True;
RCC_Periph.APB1RSTR.TIM4RST := False;
elsif This'Address = TIM5_Base then
RCC_Periph.APB1RSTR.TIM5RST := True;
RCC_Periph.APB1RSTR.TIM5RST := False;
elsif This'Address = TIM6_Base then
RCC_Periph.APB1RSTR.TIM6RST := True;
RCC_Periph.APB1RSTR.TIM6RST := False;
elsif This'Address = TIM7_Base then
RCC_Periph.APB1RSTR.TIM7RST := True;
RCC_Periph.APB1RSTR.TIM7RST := False;
elsif This'Address = TIM8_Base then
RCC_Periph.APB2RSTR.TIM8RST := True;
RCC_Periph.APB2RSTR.TIM8RST := False;
elsif This'Address = TIM9_Base then
RCC_Periph.APB2RSTR.TIM9RST := True;
RCC_Periph.APB2RSTR.TIM9RST := False;
elsif This'Address = TIM10_Base then
RCC_Periph.APB2RSTR.TIM10RST := True;
RCC_Periph.APB2RSTR.TIM10RST := False;
elsif This'Address = TIM11_Base then
RCC_Periph.APB2RSTR.TIM11RST := True;
RCC_Periph.APB2RSTR.TIM11RST := False;
elsif This'Address = TIM12_Base then
RCC_Periph.APB1RSTR.TIM12RST := True;
RCC_Periph.APB1RSTR.TIM12RST := False;
elsif This'Address = TIM13_Base then
RCC_Periph.APB1RSTR.TIM13RST := True;
RCC_Periph.APB1RSTR.TIM13RST := False;
elsif This'Address = TIM14_Base then
RCC_Periph.APB1RSTR.TIM14RST := True;
RCC_Periph.APB1RSTR.TIM14RST := False;
else
raise Unknown_Device;
end if;
end Reset;
------------------------------
-- System_Clock_Frequencies --
------------------------------
function System_Clock_Frequencies return RCC_System_Clocks
is
Source : constant UInt2 := RCC_Periph.CFGR.SWS;
Result : RCC_System_Clocks;
begin
Result.I2SCLK := 0;
case Source is
when 0 =>
-- HSI as source
Result.SYSCLK := HSI_VALUE;
when 1 =>
-- HSE as source
Result.SYSCLK := HSE_VALUE;
when 2 =>
-- PLL as source
declare
HSE_Source : constant Boolean := RCC_Periph.PLLCFGR.PLLSRC;
Pllm : constant UInt32 :=
UInt32 (RCC_Periph.PLLCFGR.PLLM);
Plln : constant
UInt32 :=
UInt32 (RCC_Periph.PLLCFGR.PLLN);
Pllp : constant
UInt32 :=
(UInt32 (RCC_Periph.PLLCFGR.PLLP) + 1) * 2;
Pllvco : UInt32;
begin
if not HSE_Source then
Pllvco := HSI_VALUE;
else
Pllvco := HSE_VALUE;
end if;
Pllvco := Pllvco / Pllm;
Result.I2SCLK := Pllvco;