inter_eeprom.c

This is the source code for 5x7 Matrix display developed using PIC Microcontroller

void EEPROM_Write(unsigned char ewaddr,unsigned char ewdata)
{
	unsigned char status=0;
	EEADR = ewaddr;
	EEDATA = ewdata;
	EECON1bits.EEPGD = 0;
	EECON1bits.CFGS = 0;
	EECON1bits.WREN = 1;
	
	if(INTCONbits.GIE) 
	{
		status = 1;
		INTCONbits.GIE = 0;
	}

	EECON2 = 0x55;
	EECON2 = 0xAA;
	EECON1bits.WR = 1;
	
	while(EECON1bits.WR);
	if(status)
	{
		INTCONbits.GIE = 1;
	}
	EECON1bits.WREN = 0;
}

unsigned char EEPROM_Read(unsigned char eraddr)
{
	EEADR = eraddr;
	EECON1bits.EEPGD = 0;
	EECON1bits.CFGS = 0;
	EECON1bits.RD = 1;
	return EEDATA;
}