57 lines
2.1 KiB
C
57 lines
2.1 KiB
C
#include "MyPWM.h"
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#include "stm32f1xx_ll_bus.h" // Pour l'activation des horloges
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#include "stm32f1xx_ll_tim.h"
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void MyPWM_Conf_Output(TIM_TypeDef * Timer, int channel)
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{
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LL_TIM_OC_InitTypeDef My_LL_Tim_OC_Init_Struct;
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//Configuration du output channel en PWM
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LL_TIM_OC_StructInit(&My_LL_Tim_OC_Init_Struct);
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//Configure le mode de la PWM : PWM1 = 1 jusqu'à la CompareValue puis 0, PWM2 = l'inverse
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My_LL_Tim_OC_Init_Struct.OCMode = LL_TIM_OCMODE_PWM1;
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LL_TIM_OC_Init(Timer,channel,&My_LL_Tim_OC_Init_Struct);
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//Activation du channel pour le timer considéré
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LL_TIM_CC_EnableChannel(Timer, channel);
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}
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//Configurer obligatoirement les channels 1 et 2 sur IC1 et IC2 ou IC3 et IC4
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void MyPWM_Conf_Input(TIM_TypeDef * Timer, int channel1, int channel2)
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{
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LL_TIM_IC_InitTypeDef My_LL_Tim_IC_Init_Struct;
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//Configuration du channel1 (front montant, mappé sur TI1 = valeurs par défaut)
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LL_TIM_IC_StructInit(&My_LL_Tim_IC_Init_Struct);
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LL_TIM_IC_Init(Timer,channel1,&My_LL_Tim_IC_Init_Struct);
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//Configuration du channel2 (front descendant, mappé sur TI1 = valeurs modifiées)
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LL_TIM_IC_StructInit(&My_LL_Tim_IC_Init_Struct);
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//Détection sur front descendant
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My_LL_Tim_IC_Init_Struct.ICPolarity = LL_TIM_IC_POLARITY_FALLING;
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//Mappage sur TI1
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My_LL_Tim_IC_Init_Struct.ICActiveInput = LL_TIM_ACTIVEINPUT_INDIRECTTI;
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LL_TIM_IC_Init(Timer,channel2,&My_LL_Tim_IC_Init_Struct);
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//Definition du trigger
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LL_TIM_SetTriggerInput(Timer, LL_TIM_TS_TI1FP1);
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//Configure le mode esclave en mode RESET
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LL_TIM_SetSlaveMode(Timer, LL_TIM_SLAVEMODE_RESET);
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//Activation des 2 channels pour le timer considéré
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LL_TIM_CC_EnableChannel(Timer, channel1);
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LL_TIM_CC_EnableChannel(Timer, channel2);
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}
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void MyPWM_Set_Impulse_Duration(TIM_TypeDef * Timer, uint32_t CompareValue, int channel)
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{
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if (channel==LL_TIM_CHANNEL_CH1) LL_TIM_OC_SetCompareCH1(Timer, CompareValue);
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else if (channel==LL_TIM_CHANNEL_CH2) LL_TIM_OC_SetCompareCH2(Timer, CompareValue);
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else if (channel==LL_TIM_CHANNEL_CH3) LL_TIM_OC_SetCompareCH3(Timer, CompareValue);
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else LL_TIM_OC_SetCompareCH4(Timer, CompareValue);
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}
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