单片机实验，求助电子时钟的C语言程序？？

Question

如题所述

Answer 1

#include"reg51.h"
#define uint unsigned int
#define uchar unsigned char
void init();
void display(uchar,uchar,uchar,uchar,uchar,uchar);
sbit wela=P2^7;
sbit dula=P2^6;
sbit key0=P3^4;
sbit key1=P3^5;
sbit key2=P3^6;
sbit key3=P3^7;
uchar aa,bb,cc,bai,shi,ge;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};

uchar temp1=0,temp2=0,temp3=0;

void delay(uint z)
{
uint x,y;
for(x=0;x<z;x++)
for(y=0;y<110;y++);
}

void main()
{

init();
while(1)
{
display(aa,bb,cc,bai,shi,ge);
if(key0!=1)
{
delay(5);
if(key0!=1)
{
while(!key0)
display(aa,bb,cc,bai,shi,ge);
temp3++;
if(temp3==24)
temp3=0;
}

}
if(key1!=1)
{
delay(5);
if(key1!=1)
{
while(!key1)
display(aa,bb,cc,bai,shi,ge);
temp2++;
if(temp2==60)
temp2=0;
}

}
if(key3!=1)
{
delay(5);
if(key3!=1)
{
temp1=0;temp2=0;temp3=0;
}

}
if(key2!=1)
{
delay(5);
if(key2!=1)
{
temp1=0;
}

}
}

}
void init()
{
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;
}
void timer0() interrupt 1
{

uchar a;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
a++;
if(a==19)
{
a=0;
aa=temp3/10;
bb=temp3%10;
cc=temp2/10;
bai=temp2%10;
shi=temp1/10;
ge=temp1%10;
temp1++;

if(temp1==60)
{
temp1=0;
temp2++;
if(temp2==60)
{
temp2=0;
temp3++;
if(temp3==24)
{
temp1=0;temp2=0;temp3=0;
}
}

}

}

}
void display(uchar aa,uchar bb,uchar cc,uchar bai,uchar shi,uchar ge) //显示子函数
{
dula=1;
P0=table[aa];
dula=0;
P0=0xff;
wela=1;
P0=0xfe;
wela=0;
delay(1);

dula=1;
P0=table[bb];
dula=0;
P0=0xff;
wela=1;
P0=0xfd;
wela=0;
delay(1);

dula=1;
P0=table[cc];
dula=0;
P0=0xff;
wela=1;
P0=0xfb;
wela=0;
delay(1);
dula=1;
P0=table[bai];
dula=0;
P0=0xff;
wela=1;
P0=0xf7;
wela=0;
delay(1);

dula=1;
P0=table[shi];
dula=0;
P0=0xff;
wela=1;
P0=0xef;
wela=0;
delay(1);

dula=1;
P0=table[ge];
dula=0;
P0=0xff;
wela=1;
P0=0xdf;
wela=0;
delay(1);
}