exter_eeprom.c

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

void Ex_EEPROM_Block_Select(unsigned char addru)
{
	if(addru)
	{
		eeprom_write_command = EEPROM_WRITE | 0x08;
		eeprom_read_command = EEPROM_READ | 0x08;
	}
	else
	{
		eeprom_write_command = EEPROM_WRITE;
		eeprom_read_command = EEPROM_READ;
	}
}

void Fill_PrePost_Zero(unsigned char al,unsigned char ah)
{
	unsigned char i;
	for(i=0;i<(Total_Segment*5);i++)
	{
		i2c_start();
		i2c_write(EEPROM_WRITE);
		i2c_write(ah);
		i2c_write(al);
		i2c_write(0);
		i2c_stop();
		al++;
		if(al == 0)
			ah++;
		delay_ms(10);
	}
}