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1、数码时钟，计时器#include #defineuchar unsigned char #define uint unsigned int uchar code shuma = 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f; uint x,count,dism,disf,diss;sbit wei=P27;sbit duan=P26;/数码管显示时间 void display (uint miao,uint fen,uint shi) /显示秒表uint ma,mb,fena,fenb,shia,shib;ma=miao/10;mb=mia
2、o%10;/显示分钟fena=fen/10;fenb=fen%10;/显示时钟shia=shi/10;shib=shi%10; /时针if(shi0) P0=0xff;wei=1;wei=0;/去除余晖；P0=shumashia;duan=1;duan=0;P0=0xfe;wei=1;wei=0;P0=0xff;wei=1;wei=0;P0=shumashib|0x80;duan=1;duan=0; /与0x80按位或，取小数点P0=0xfd;wei=1;wei=0;/分针if(fen0)P0=0xff;wei=1;wei=0;P0=shumafena;duan=1;duan=0;P0=0xf
3、b;wei=1;wei=0; P0=0xff;wei=1;wei=0;P0=shumafenb|0x80;duan=1;duan=0;P0=0xf7;wei=1;wei=0;/秒针P0=0xff;wei=1;wei=0;P0=shumama;duan=1;duan=0;P0=0xef;wei=1;wei=0;P0=0xff;wei=1;wei=0;P0=shumamb;duan=1;duan=0;P0=0xdf;wei=1;wei=0;/主函数void main ()EA=1;ET1=1;TMOD=0X10; TH1=(65536-50000)/256;TL1=(65536-50000)%256;TR1=1;count=0;dism=0;disf=0;diss=0;while(1) display(dism,disf,diss);if(count=5)count=0;dism+; if(dism=60) disf+;dism=0; if(disf=60) diss+;disf=0;/定时器1中断void time1() interrupt 3TH1=(65536-50000)/256;TL1=(65536-50000)%256;count+;
