求用PCF8563做个实时时钟的C源程序和电路图!？ Word 文档

#include<reg51.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit pcf8563_scl=P0^4;
sbit pcf8563_sda=P0^3;
uchar
num[10]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; //数字表
sbit clk=P2^0;
sbit dio=P2^1;
sbit cfd=P2^2; //充放电开关，
sbit en=P2^3;
sbit rw=P2^4;
sbit rs=P2^5;
sbit deng=P2^6; //测试灯
sbit adcs=P2^7;
bit busy=0;
uchar sg;
uchar sd;
uchar fg;
uchar fd;
uchar mg;
uchar md;
uchar hou=0;
uchar min=0;
uchar sec=0;
uchar subadd; uchar dat;
uchar number;
void start_pcf8563();
void send_pcf8563_byte();
void LcdIni(void);
void WrOp(uchar dat);
void WrDat(uchar dat);
void ChkBusy(void);
void display0(void);
void display1(void);
void stop_pcf8563();
void receive_pcf8563_byte(); void spit_time();
void LcdIni()//初始化LCD {WrOp(0x01);
WrOp(0x38);
WrOp(0x0c);
WrOp(0x06);
}
void WrOp(uchar dat)//写LCD显示地址{
P1 =dat;
rs=0;
rw=0;
en=0;
ChkBusy();
en=1;
}
void WrDat(uchar dat)//写LCD显示数据{ P1=dat;
rs=1;
rw=0;
en=0;
ChkBusy();
en=1;
}
void ChkBusy() //检查LCD是否忙{
P1=0xff;
rs=0;
rw=1;
en=0;
_nop_();
en=1;
while(P1&0x80);
}
void display0() //显示必要的背景{
WrOp(0x80);
WrDat('T');
WrOp(0x81);
WrDat(':');
WrOp(0x84);
WrDat(':');
WrOp(0x87);
WrDat(':');
}
void spit_time()
{
sg=(int)hou/10;
sd=(int)hou%10;
fg=(int)min/10;
fd=(int)min%10;
mg=(int)sec/10;
md=(int)sec%10;
}
void display1()//显示时间六位{
uchar temp6;
uchar temp5; uchar temp4; uchar temp3; uchar temp2; uchar temp1;
WrOp(0x82); temp6=num[sg]; WrDat(temp6);
WrOp(0x83); temp5=num[sd]; WrDat(temp5);
WrOp(0x85); temp4=num[fg]; WrDat(temp4);
WrOp(0x86); temp3=num[fd]; WrDat(temp3);
WrOp(0x88);
temp2=num[mg];
WrDat(temp2);
WrOp(0x89);
temp1=num[md];
WrDat(temp1);
}
void Send_pcf8563_byte(uchar bb) //向PCF8563发送一个字节{
uchar aa;
pcf8563_scl=0;
for(aa=0;aa<8;aa++)
{
if((bb&0x80)==0x80)
{
pcf8563_sda=1;
}
else
{
pcf8563_sda=0;
}
pcf8563_scl=1;
pcf8563_scl=0;
bb=bb<<1;
}
_nop_();
_nop_();
pcf8563_sda=1;
pcf8563_scl=1;
busy=0;
if(pcf8563_sda)
{
busy=1;
}
else
{
_nop_();
_nop_();
pcf8563_scl=0;
busy=0;
}
}
void write_pcf8563(uchar subadd,uchar dat)// 向PCF8563对应地址写数据
{
start_pcf8563();
Send_pcf8563_byte(0xa2);
if(!busy)
{
Send_pcf8563_byte(subadd);
if(!busy)
{
Send_pcf8563_byte(dat);
}
}
stop_pcf8563();
}
void read_pcf8563() //读当时的时，分，钞{
start_pcf8563();
Send_pcf8563_byte(0xa2);
if(!busy)
{
Send_pcf8563_byte(0x02);
if(!busy)
{
start_pcf8563();
Send_pcf8563_byte(0xa3);
receive_pcf8563_byte();
sec=number&0x7f;
start_pcf8563();
Send_pcf8563_byte(0xa3);
receive_pcf8563_byte();
min=number&0x7f;
start_pcf8563();
Send_pcf8563_byte(0xa3);
receive_pcf8563_byte();
hou=number&0x3f;
}
}
stop_pcf8563();
}
void receive_pcf8563_byte() //从PCF8563接受一个字节{uchar cc;
pcf8563_sda=1;
number=0;
for(cc=0;cc<8;cc++)
{
number<<=1;
pcf8563_scl=0;
pcf8563_scl=1;
_nop_();
_nop_();
number= number|pcf8563_sda;
}
pcf8563_scl=0;
_nop_();
_nop_();
}
void start_pcf8563() //开启PCF8563IIC
{
pcf8563_sda=1;
pcf8563_scl=1;
pcf8563_sda=0;//SCL为低，SDA执行一个上跳
pcf8563_scl=0;//SCL为低，嵌住数据线
}
void stop_pcf8563() //关闭PCF8563IIC
{
pcf8563_sda=0;
pcf8563_scl=1;
pcf8563_sda=1;//SCL为高，SDA执行一个上跳
pcf8563_scl=0;//SCL为低，嵌住数据线
}
void main(void)
{
LcdIni(); //初始化屏
display0(); //显示必要的背影
write_pcf8563(0x02,sec); //写钞
write_pcf8563(0x03,min); //写分
write_pcf8563(0x04,hou); //写时
while(1)
{
read_pcf8563();//读当前时间
spit_time(); //切害时间，为显示做准备display1(); //显示当前时间
} }。