单片机+proteus+闹钟仿真

#include "reg52.h" #include "intrins.h" #include <stdio.h> sbit j=P3^0; sbit s1=P3^2; sbit s2=P3^3; sbit s3=P3^4; sbit s4=P3^5; void Timer0Init(); void Delay10ms(); void shumaguan(); void shijianxianshi(); void naozhongxianshi(); void bao(); void tiao(); unsigned char code xu[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xbf,0xbf}; unsigned char zhongjian[]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}; int i,shi,fen,miao,n,nmia,nshi=0,nfen=0,nmiao=10,t,a; void main() { Timer0Init(); while(1) { shumaguan(); tiao(); if(t==0) shijianxianshi(); if(t==1) naozhongxianshi(); bao(); } } void tiao() { if(s1==0) { Delay10ms(); if(s1==0) { t++; if(t==2) t=0; } while(!s1); } if(s2==0) { Delay10ms(); if(s2==0) { a++; if(a>2) a=0; } while(!s2); } if(s3==0) { Delay10ms(); if(s3==0) { if(a==0) { nmiao++; if(nmiao>59) nmiao=0; } if(a==1) { nfen++; if(nfen>59) nfen=0; } if(a==2) { nshi++; if(nshi>23) nshi=0; } } while(!s3); } if(s4==0) { Delay10ms(); if(s4==0) { if(a==0) { nmiao--; if(nmiao<0) nmiao=59; } if(a==1) { nfen--; if(nfen<0) nfen=59; } if(a==2) { nshi--; if(nshi<0) nshi=23; } } while(!s4); } } void bao() { nmia=nmiao+1; if(shi==nfen&fen==nfen&miao==nmiao) j=0; if(shi==nfen&fen==nfen&miao==nmia) j=1; } void naozhongxianshi() { zhongjian[0]=xu[nshi/10]; zhongjian[1]=xu[nshi%10]; zhongjian[2]=0xbf; zhongjian[3]=xu[nfen/10]; zhongjian[4]=xu[nfen%10]; zhongjian[5]=0xbf; zhongjian[6]=xu[nmiao/10]; zhongjian[7]=xu[nmiao%10]; } void shijianxianshi() { zhongjian[0]=xu[shi/10]; zhongjian[1]=xu[shi%10]; zhongjian[2]=0xbf; zhongjian[3]=xu[fen/10]; zhongjian[4]=xu[fen%10]; zhongjian[5]=0xbf; zhongjian[6]=xu[miao/10]; zhongjian[7]=xu[miao%10]; } void Timer0Init() //5毫秒@11.0592MHz { TMOD &= 0xF0; //设置定时器模式 TL0 = 0x00; //设置定时初值 TH0 = 0x28; //设置定时初值 TF0 = 0; //清除TF0标志 TR0 = 1; //定时器0开始计时 EA=1;ET0=1; } void Timer0() interrupt 1 { n++; if(n>200) { miao++; n=0; } if(miao>59) { fen++; miao=0; } if(fen>59) { shi++; fen=0; } if(shi>23) { shi=0; } } void shumaguan() { P2=0x00; P1=0xff; P2=1<<i; P1=zhongjian[i]; i++; if(i>7) i=0; } void Delay10ms() //@11.0592MHz { unsigned char i, j; i = 108; j = 145; do { while (--j); } while (--i); }