求用PCF8563做个实时时钟的C源程序和电路图！？

答案:1 悬赏:30 手机版

解决时间 2021-04-16 09:25

提问者网友：你独家记忆
2021-04-15 14:21

最佳答案

五星知识达人网友：独行浪子会拥风
2021-04-15 15:40

#include
#include

#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
}
}

我要举报

如以上问答信息为低俗、色情、不良、暴力、侵权、涉及违法等信息，可以点下面链接进行举报！