pcf8563.c

ti dm642 board library, good for dm642 developer.

/*
 *  Copyright 2005 by Zhongxon Digital Incorporated.
 *  All rights reserved. Property of Zhongxon Digital Incorporated.
 */
 
/*
 *  ======== pcf8563.c ========
 *  RTC module for the EVMDM642
 */
#include <stdio.h>
#include <csl.h>
#include <csl_i2c.h>
#include "devnum.h"
#include "evmdm642_i2c.h"
#include "pcf8563.h"



void pcf8563_init()
{
	Uint8 buf[]={0,   /*控制/状态寄存器1*/
				 0,   /*控制/状态寄存器2*/
				 0,   /*秒/VL 寄存器*/
				 0x55,/*分钟寄存器*/
				 0x20,/*小时寄存器*/
				 0x07,/*日寄存器*/
				 0x02,/*星期寄存器*/
				 0x06,/*月/世纪寄存器*/
				 0x05,/*年寄存器*/
				 0,   /*分钟报警寄存器*/
				 0,   /*小时报警寄存器*/
				 0,   /*日报警寄存器*/
				 0,   /*星期报警寄存器*/
				 0,   /*CLKOUT 频率寄存器*/
				 0x03,/*定时器控制器寄存器*/
				 0xff /*定时器倒计数数值寄存器*/
				 };
				 
	EVMDM642_IIC_write(EVMDM642_I2C_hI2C,PCF8563_ADDRESS,0x00,buf,16); 
}


void set_pcf8563(Uint8 *pbuf)
{
	EVMDM642_IIC_write(EVMDM642_I2C_hI2C,PCF8563_ADDRESS,0x00,pbuf,16);

}

void get_pcf8563(Uint8 *pbuf)
{
	Uint8 buf[8];
	EVMDM642_IIC_read(EVMDM642_I2C_hI2C,PCF8563_ADDRESS,0x02,buf,7);
	*pbuf++=buf[0] & 0xff;
	*pbuf++=buf[1] & 0x7f;
	*pbuf++=buf[2] & 0x3f;
	*pbuf++=buf[3] & 0x3f;
	*pbuf++=buf[4] & 0x07;
	*pbuf++=buf[5] & 0x1f;
	*pbuf  =buf[6] & 0xff;

}