SHIYAN.zip_数字时钟_时钟

#include <reg51.h> #include <absacc.h> #define ZX XBYTE[0xffdc] //字型口 #define ZW XBYTE[0xffdd] //字位口 unsigned char code aa[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90}; unsigned char second=50; //秒 unsigned char minute=59; //分 unsigned char hours=23; //时 unsigned char j; unsigned char i; void T0_inti(void) { TMOD=0x01; //工作方式1 16位 TH0=(65536-50000)/256; //初始化初值 TL0=(65536-50000)%256; EA=1; //开启总中断 ET0=1; //开启定时器0中断 TR0=1; //开启计时器 } void T1_inti(void) { TMOD=0x10; //工作方式1 16位 TH1=(65536-1000)/256; //初始化初值 TL1=(65536-1000)%256; EA=1; //开启总中断 ET1=1; //开启定时器0中断 TR1=1; //开启计时器 } void delay_ms(unsigned int x) { unsigned int i; unsigned int j; for(i=0;i<x;i++) for(j=0;j<20;j++); } void main(void) { T0_inti(); T1_inti(); while(1); } void T0_int(void) interrupt 1 { TH0=(65536-50000)/256; //初始化初值 TL0=(65536-50000)%256; i++; if(i==10) { i=0; second++; if(second==60) { minute++; second=0; } if(minute==60) { hours++; minute=0; } if(hours==24) { hours=0; } } } void T1_int(void) interrupt 3 { TH1=(65536-1000)/256; //初始化初值 TL1=(65536-1000)%256; j++; switch(j) { case 1 : {ZX=aa[second%10];ZW=0x01;delay_ms(5);ZW=0;break;} case 2 : {ZX=aa[second/10];ZW=0x02;delay_ms(5);ZW=0;break;} case 3 : {ZX=aa[minute%10];ZW=0x04;delay_ms(5);ZW=0;break;} case 4 : {ZX=aa[minute/10];ZW=0x08;delay_ms(5);ZW=0;break;} case 5 : {ZX=aa[hours%10];ZW=0x10;delay_ms(5);ZW=0;break;} case 6 : {ZX=aa[hours/10];ZW=0x20;delay_ms(5);ZW=0;break;} } if(j==6) j=0; }