79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
#include "Driver_TIMER.h"
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//réservation d'un espace mémoire pour un pointeur de fonction associé à chacun des timers
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void (* IT_function_TIM1) (void) = 0x0;
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void (* IT_function_TIM2) (void) = 0x0;
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void (* IT_function_TIM3) (void) = 0x0;
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void (* IT_function_TIM4) (void) = 0x0;
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void MyTimer_Base_Init(MyTimer_Struct_TypeDef * Timer) {
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Timer -> Timer -> ARR = Timer -> ARR -1;
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Timer -> Timer -> PSC = Timer -> PSC -1;
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}
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void Activate_TIM(int i) {
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if (i==1) {
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//le timer1 est sur apb2enr
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RCC-> APB2ENR |= 0x01 << 11 ;
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}
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else {
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//les autres timers sont sur apb1enr
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RCC-> APB1ENR |= 0x01 << (i-2) ;
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}
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}
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void MyTimer_Active_IT ( TIM_TypeDef * Timer , char Prio , void (* IT_function) (void)) {
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//active l'interruption sur timer et pointe vers la fonction IT_function avec la priorité prio
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//"Trigger DMA request enabled"
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Timer -> DIER |= 1;
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if (Timer == TIM1) {
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NVIC_EnableIRQ(TIM1_TRG_COM_IRQn);
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NVIC_SetPriority(TIM1_TRG_COM_IRQn, Prio);
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IT_function_TIM1 = IT_function ;
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}
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else if (Timer == TIM2) {
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NVIC_EnableIRQ(TIM2_IRQn);
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NVIC_SetPriority(TIM2_IRQn, Prio);
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IT_function_TIM2 = IT_function ;
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}
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else if (Timer == TIM3) {
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NVIC_EnableIRQ(TIM3_IRQn);
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NVIC_SetPriority(TIM3_IRQn, Prio);
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IT_function_TIM3 = IT_function ;
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}
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else if (Timer == TIM4) {
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NVIC_EnableIRQ(TIM4_IRQn);
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NVIC_SetPriority(TIM4_IRQn, Prio);
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IT_function_TIM4 = IT_function ;
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}
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}
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void TIM1_TRG_COM_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM1->SR &= ~1;
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if (IT_function_TIM1)
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(* IT_function_TIM1) ();
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}
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void TIM2_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM2->SR &= ~1;
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if(IT_function_TIM2)
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(* IT_function_TIM2) ();
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}
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void TIM3_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM3->SR &= ~1;
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if(IT_function_TIM3)
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(* IT_function_TIM3) ();
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}
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void TIM4_IRQHandler(void) {
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//on met à 0 le flag d'interruption
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TIM4->SR &= ~1;
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if(IT_function_TIM4)
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(* IT_function_TIM4) ();
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}
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