DriverSTM_RC/Source/Eeprom.c

/*
 * V1.0
 */

#include <Eeprom.h>

/****Private fonction */

void readEeprom(uint8_t *tab, int len){
	//TODO (EEPROM IMPORTANT) On donne pas d'adresse a laqeuel on veux lire.
	HAL_I2C_Master_Receive(&EEprom.I2C,EepromADD,tab,len,1000);
}

void writeEeprom(uint8_t *tab, int len){
	//TODO (EEPROM IMPORTANT) On donne pas d'adresse a laqeuel on veux ecrire
	HAL_GPIO_WritePin(&EEprom.WC_PORT,EEprom.WC_PIN,0);
	HAL_I2C_Master_Transmit(&EEprom.I2C,EepromADD,tab,len,1000);
	HAL_GPIO_WritePin(&EEprom.WC_PORT,EEprom.WC_PIN,1);
}

uint16_t readPointerEcriture(){
	uint8_t t[2];
	t[0]=0x00;
	t[1]=0x00;
	writeEeprom(t,2);
	readEeprom(t,2);
	uint16_t res = t[0]<<8 & t[1];
	return res;
}

void writePointerEcriture(uint16_t p){
	uint8_t t[4];
	t[0]=0x00;
	t[1]=0x00;
	t[2]=(uint8_t)p>>8;
	t[3]=(uint8_t)p>>8;
	writeEeprom(t,4);
}

uint16_t readPointerLecture(){
	uint8_t t[2];
	t[0]=0x00;
	t[1]=0x01;
	writeEeprom(t,2);
	readEeprom(t,2);
	uint16_t res = t[0]<<8 & t[1];
	return res;
}

void writePointerLecture(uint16_t p){
	uint8_t t[4];
	t[0]=0x00;
	t[1]=0x01;
	t[2]=(uint8_t)p>>8;
	t[3]=(uint8_t)p>>8;
	writeEeprom(t,4);
}

/** Public Fonction*/

void initEprom(I2C_HandleTypeDef typ,GPIO_TypeDef port, uint16_t pin){
	EEprom.I2C = typ;
	EEprom.WC_PORT = port;
	EEprom.WC_PIN = pin;
}


void writeData(uint16_t add, uint8_t *tab, uint8_t size){
	uint8_t t[size+2];
	t[0]=add>>8;
	t[1]=add;
	for(int i=0;i<size;i++)
		t[i+2]=tab[i];
	writeEeprom(t,size+2);
}

void readData(uint16_t add, uint8_t *tab, uint8_t size){
	uint8_t t[size+2];
	t[0]=add>>8;
	t[1]=add;
	writeEeprom(t,2);
	readEeprom(tab,size);
}

//fonction pour tester le hard de l'Eeprom
void testEeprom(){
	uint16_t add = 0x04AA;
	writePointerEcriture(add);
	add = readPointerEcriture();
}