#include "stm32f10x.h"

	
void EnableTimer(TIM_TypeDef *Timer){
	if(Timer == TIM2){
		RCC -> APB1ENR |= RCC_APB1ENR_TIM2EN;
	}
	else if(Timer == TIM3){
		RCC -> APB1ENR |= RCC_APB1ENR_TIM3EN;
	}
	else if(Timer == TIM4){
		RCC -> APB1ENR |= RCC_APB1ENR_TIM4EN;
	}
	else if(Timer == TIM1){
		RCC->APB2ENR |= RCC_APB2ENR_TIM1EN;
	}
	else{
	}
}


 	void MyTimer_Base_Init(TIM_TypeDef *Timer, unsigned short Autoreload, unsigned short Prescaler){
	
		if (Timer == TIM1) {
				RCC->APB2ENR |= RCC_APB2ENR_TIM1EN; //L'horloge est enabléd
		} else if (Timer == TIM2) {
				TIM2->CR1 |= TIM_CR1_CEN; //On enable l'horloge interne
				RCC->APB1ENR |= RCC_APB1ENR_TIM2EN;
		} else if (Timer == TIM3) {		
				RCC->APB1ENR |= RCC_APB1ENR_TIM3EN;
		} else if (Timer == TIM4) {
				RCC->APB1ENR |= RCC_APB1ENR_TIM4EN;
		}
		Timer->ARR = Autoreload;
		Timer->PSC = Prescaler;
		
	};
	


void (*pFnc) (void);

void MyTimer_ActiveIT (TIM_TypeDef * Timer , char prio, void (*IT_function)(void)){
		Timer->DIER |= TIM_DIER_UIE;
    IRQn_Type IRQn;
    if (Timer == TIM2) IRQn = TIM2_IRQn;
    else if (Timer == TIM3) IRQn = TIM3_IRQn;
    else IRQn = TIM4_IRQn;
		NVIC_EnableIRQ(IRQn);
		NVIC_SetPriority(IRQn, prio);
	
	pFnc = IT_function;
};


void TIM2_IRQHandler(void){	
	if (pFnc != 0){
		(*pFnc) (); /* appel indirect de la fonction */
	}
	TIM2->SR &= ~TIM_SR_UIF;
};


void TIM3_IRQHandler(void){
	TIM3->SR &= ~TIM_SR_UIF;

};

void TIM4_IRQHandler(void){
	TIM4->SR &= ~TIM_SR_UIF;

};