#include "REG52.h"
unsigned char code smgduan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0,64}; //共阴0~F消隐减号
unsigned char Js=0, miao=0;//中断计时 秒 分 时 毫秒
sbit k0=P2^1;
sbit k1=P2^2;
void smxs(unsigned char mz, unsigned char w)
{
unsigned char Xd=0;
P1=255;
P1=255-smgduan[mz];
P0=w;
while(++Xd);
}
void ZhongDuanSheZhi()
{
TH0+=(65536-9216*5)/256;/*定时器赋初值,定时50ms触发中断,自动补偿方式*/
TL0+=(65536-9216*5)%256;
TMOD=0X01;//16位定时器/计数器
TR0=1; //启动定时器T0。
ET0=1; //开启定时器
EA=1; //全局中断开关
}
void main()
{
unsigned char Xd=0,k=1;//消抖
unsigned int shu=0;
ZhongDuanSheZhi();
while(1)
{
if(k0==0&&++Xd==0){k=!k;Js=0;while(k0==0);}
if(k1==0&&++Xd==0){TR0=!TR0;Js=0;while(k1==0);}
smxs(shu/1000,16);smxs(shu/100%10,32);smxs(shu/10%10,64);smxs(shu%10,128);
if(Js==20)
{
Js=0;
if(shu<10000)if(k)++shu;else --shu;
}
}
}
void ZhongDuan() interrupt 1
{
++Js;
TH0+=0X4c;
TL0+=0X00;
}