98 lines
1.5 KiB
C
98 lines
1.5 KiB
C
#include "TIMER.h"
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/*periode_timer=peridoe_horloge*prescaler*resolution
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debordement stocké dans registre UIF
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fixer val prescaler+ autoreload(equivalent resolution)
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demarrage timer => CEN=1*/
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void (*ptr1_func)(void);
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void (*ptr2_func)(void);
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void (*ptr3_func)(void);
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void (*ptr4_func)(void);
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void MyTimer_Base_Init ( MyTimer_Struct_TypeDef * Timer)
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{
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if(Timer->Timer==TIM1)
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{
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RCC->APB2ENR |= 0x01<<11;
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}
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else if (Timer->Timer==TIM2)
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{
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RCC->APB1ENR |= 0x01;
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}
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else if (Timer->Timer==TIM3)
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{
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RCC->APB1ENR |= 0x01<<1;
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}
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else if (Timer->Timer==TIM4)
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{
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RCC->APB1ENR |= 0x01<<2;
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}
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Timer->Timer->ARR=Timer->ARR;
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Timer->Timer->PSC=Timer->PSC;
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}
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void MyTimer_ActiveIT (TIM_TypeDef * Timer, char Prio, void (*IT_function)(void))
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{
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int num_tim;
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Timer->DIER |= 0x01;
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if(Timer==TIM1)
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{
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num_tim=TIM1_UP_IRQn;
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ptr1_func=IT_function;
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}
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else if(Timer==TIM2)
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{
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num_tim=TIM2_IRQn;
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ptr2_func=IT_function;
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}
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else if(Timer==TIM3)
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{
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num_tim=TIM3_IRQn;
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ptr3_func=IT_function;
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}
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else if(Timer==TIM4)
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{
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num_tim=TIM4_IRQn;
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ptr4_func=IT_function;
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}
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NVIC->ISER[0] |= 0x01<<num_tim;
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NVIC->IP[num_tim] |= Prio << 4;
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}
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void TIM2_IRQHandler (void)
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{
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if(ptr2_func!=0)
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{
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(*ptr2_func)();
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}
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TIM2->SR &= ~(1<<0) ;
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}
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void TIM3_IRQHandler (void)
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{
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if(ptr3_func!=0)
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{
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(*ptr3_func)();
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}
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TIM3->SR &= ~(1<<0) ;
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}
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void TIM4_IRQHandler (void)
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{
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if(ptr4_func!=0)
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{
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(*ptr4_func)();
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}
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TIM4->SR &= ~(1<<0) ;
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}
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void TIM1_UP_IRQHandler (void) // à vérifier
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{
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if(ptr1_func!=0)
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{
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(*ptr1_func)();
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}
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TIM1->SR &= ~(1<<0) ;
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}
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