/* Electronica IV
 * Projecto de Elevador
 * Controlo de um motor DC atraves de um pic16f877 da microchip
 *
 * Helder Cabrita 27470 & Jose Pereira 28102
 * 
 *
 * Programa de escrita e leitura na/da EPROM
 * filename: EPROM.C
 * version 1.0 BETA++ @ 04.04.2006 01.36
 * */

#include <pic1687x.h>
#include "eprom.h"
#include "serial.h"
unsigned char readByteEPROM(unsigned char address)
{
	EEADR = address;
	EEPGD = 0;
	RD = 1;
	return EEDATA;
}

void writeByteEPROM(unsigned char byte,unsigned char address)
{
	unsigned int i;
	if (WR == 0)
	{
		EEADR = address;
		EEDATA = byte;
		EEPGD = 0;
		WREN = 1;
		GIE=0;	
		EECON2= 0x55;
		EECON2= 0xAA;
		WR=1;
		GIE=1;
		WREN = 0;
		RD = 1;	
	}
	for(i=0;i<65000;i++) asm("nop");
}