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這是我的程序：
#include<reg51.h>
//#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
uchar temp,bai,shi,ge;
uint aa,time;
void delay(uint z);
void display(uchar bai,uchar shi,uchar ge);
void init();
sbit wela=P2^7;
sbit dula=P2^6;
void main()
{
init();
time=60;
while(1)
{
display(bai,shi,ge);
}
}
void display(uchar bai,uchar shi,uchar ge)
{
dula=1;
P0=table[bai];
dula=0;
P0=0x00;
wela=1;
P0=0xf7;
wela=0;
delay(time) ;
dula=1;
P0=table[shi];
dula=0;
P0=0x00;
wela=1;
P0=0xef;
wela=0;
delay(time) ;
dula=1;
P0=table[ge];
dula=0;
P0=0x00;
wela=1;
P0=0xdf;
wela=0;
delay(time) ;
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
{
for(y=110;y>0;y--);
}
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
aa++;
if (aa==20)
{ aa=0;
if(temp==100)
temp=0;
temp++;
}
bai=temp/100;
shi=temp%100/10;
ge=temp%10;
}
void init()
{
temp=0;
wela=0;
dula=0;
TMOD=0x01;//設(shè)置定時(shí)器0為工作方式1；
TH0=(65536-50000)/256;//定時(shí)器高8位值；
TL1=(65536-50000)%256;//定時(shí)器低8位值；
EA=1;//開總中斷；
ET0=1;//打開定時(shí)器0中斷；
TR0=1;//啟動(dòng)定時(shí)器0；
} |
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