#include "stm32f10x.h"


void (*pointeur_fonction_USART1)(void);
void (*pointeur_fonction_USART2)(void);
void (*pointeur_fonction_USART3)(void);


void MyUART_Init(USART_TypeDef *USART)
{
	if (USART == USART1){
		RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
		NVIC->ISER[1] |= (0x1 << 5);
		NVIC->IPR[44]=10;
		USART->BRR=72000000/9600;
		
	}else if (USART == USART2){
		RCC->APB1ENR |= RCC_APB1ENR_USART2EN;
		NVIC->ISER[1] |= (0x1 << 6);
		NVIC->IPR[44]=10;
		USART->BRR=36000000/9600;
		
	}else if (USART == USART3){
		RCC->APB1ENR |= RCC_APB1ENR_USART3EN;
		NVIC->ISER[1] |= (0x1 << 7);
		NVIC->IPR[44]=10;
		USART->BRR=36000000/9600;
		
	}
	
	USART -> CR1 |= USART_CR1_UE; //uart enable
//	USART->CR1 |= USART_CR1_M; //donnee de 8 bits ????????????????
	USART -> CR1 |= USART_CR1_TE; //transmission enable
	USART -> CR1 |= USART_CR1_RE; //recp enable
	USART -> CR1 |= USART_CR1_RXNEIE; //interruption recep enable 

}

char MyUART_Get(USART_TypeDef *USART)
{
	return USART->DR;
}

void MyUART_Activ_IT(USART_TypeDef *USART, char Prio, void (*interrupt) (void)){
	if (USART == USART1){
		NVIC->ISER[1] |= (0x1 << 5);
		NVIC->IPR[44] = Prio<<4;
		pointeur_fonction_USART1=interrupt; 
		
	}else if (USART == USART2){
		NVIC->ISER[1] |= (0x1 << 6);
		NVIC->IPR[45]=Prio<<4;
		pointeur_fonction_USART2=interrupt; 
		
	}else if (USART == USART3){
		NVIC->ISER[1] |= (0x1 << 7);
		NVIC->IPR[46]=Prio<<4;
		pointeur_fonction_USART3=interrupt; 
	}
}

void MyUART_Emission(USART_TypeDef *USART, char data){
	USART->DR=data;
//	int i = 0; 
//	while (data[i]!=0){
//		USART->DR = data[i];
//		while ((USART->SR & (0x1 << 0x7))==0){
//			;
//		}		
//		i++;
//	}
}

void USART1_IRQHandler (void)
{
	pointeur_fonction_USART1(); 
}

void USART2_IRQHandler (void)
{
	pointeur_fonction_USART2(); 
}

void USART3_IRQHandler (void)
{
	pointeur_fonction_USART3(); 
}