#include "stm32f10x.h"
#include "stdio.h"
#include "Driver_SPI.h"

void driver_spi_1_init(char Prio, void (*IT_function)(void))
{
	/*Activation de la clock*/
	RCC->APB2ENR = RCC_APB2ENR_SPI1EN;
	/*Select the freq*/
	SPI1->CR1 |= SPI_CR1_BR_1; //5Mhz max -> fPCLK = 36Mhz -> 010: fPCLK/8
	/*Select Master mode*/
	SPI1->CR1 |= SPI_CR1_MSTR;
	/*Software slave management*/
	SPI1->CR1 |= SPI_CR1_SSM;
	/*Clock Phase Selection*/
	SPI1->CR1 |= SPI_CR1_CPHA;
	/*Clock Polarity Selection*/
	SPI1->CR1 |= SPI_CR1_CPOL;
	/*Mode 16bits - 16-bit data frame format*/
	//SPI1->CR1 |= SPI_CR1_DFF;
	/*Activation de l'interruption*/
	SPI1->CR2 |= SPI_CR2_RXNEIE;
	NVIC_EnableIRQ(SPI_IRQn);
	NVIC_SetPriority(ADC1_2_IRQn, Prio);
	/*Vider le buffer d'emission/réception 0xFFFF*/
	SPI1->DR = SPI_DR_DR;
	/*Enable SPI*/
	SPI1->CR1 |= SPI_CR1_SPE;
}

void driver_spi_1_write(uint16_t data_write)
{
	SPI1->DR = data_write;
	/*Active la sélection du SLAVE*/
	SPI1->CR1 |= SPI_CR1_SSI;
}

uint16_t driver_spi_1_read()
{
 //Abaissage automatique du flag RxNE
	return SPI1->DR;
}