qiangdaqi.rar_51计时程序_60S 51

#include<reg52.h> #define uchar unsigned char #define uint unsigned int sbit dula=P2^6; sbit wela=P2^7; sbit key1=P3^4; sbit key2=P3^5; sbit key3=P3^3; sbit key4=P3^2; uchar count,k; xianshi(); uint disnum,i,a[3],n; uchar code tabledu[]={ 0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; uchar code tablewe[]= {0xfe,0xfd,0xfb,0xf7,0xef,0xdf}; display(uint); delay(uchar); ss(){a[i]=disnum;i++;} void main() { P0=tabledu[0]; dula=1; dula=0; P0=0xf0; wela=1; wela=0; EA=1; EX0=1; IT0=1; if(key1==0) { delay(50); if(key1==0) {EA=1; ET1=1; TMOD=0x10; TH1=(65536-5000)/256; TL1=(65536-5000)%256; TR1=1; while(key4&&(key3||!i)) { display(disnum); if((key2==0)&&(i<3)) {//delay(10); if(key2==0){ ss(); while(!key2);} } } i=0; while(key4){if(key3==0) { while(!key3) xianshi(); } display(a[i]); } } } } void time() interrupt 3 { TH1=(65536-5000)/256; TL1=(65536-5000)%256; count++; if(count==2) { count=0; if(disnum==6000) disnum=0; disnum++;} } void exta0() interrupt 0 { P0=0x00; wela=1; wela=0; P0=tabledu[0]; dula=1; dula=0; P0=0xf0; wela=1; wela=0; } xianshi() {if(i==2)i=-1;i++;} display(uint n) {P0=0xff; wela=1; wela=0; P0=tabledu[n/1000]; dula=1; dula=0; P0=0xfe; wela=1; wela=0; delay(1); P0=0xff; wela=1; wela=0; P0=tabledu[n%1000/100]; dula=1; dula=0; P0=0xfd; wela=1; wela=0; delay(1); P0=0xff; wela=1; wela=0; P0=tabledu[n%1000%100/10]; dula=1; dula=0; P0=0xfb; wela=1; wela=0; delay(1); P0=0xff; wela=1; wela=0; P0=tabledu[n%1000%100%10]; dula=1; dula=0; P0=0xf7; wela=1; wela=0; delay(1); } delay(uchar z) { uchar a,b; for(a=z;a>0;a--) for(b=200;b>0;b--); }