#include<reg51.h>
#define U8 unsigned char
code U8 tab[]={0xa0,0xbb,0x62,0x2a,0x39,0x2c,0x24,0xba,0x20,0x28};
code U8 scn[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb};
U8 buf[]={0,0,0,0,0,0};
U8 cnt=0;
U8 h=12; //記小時
U8 m=58; //記分鐘
U8 s=55; //記秒
void main(void)
{
EA=1;
ET0=1;
TMOD=0x01;
TH0=0xee;
TL0=0;
TR0=1;
while(1);
}
void int0(void)interrupt 1
{
U8 i=0,a;
TH0=0xee;
TL0=0;
i=cnt&0x05;
a=tab[buf];
if((i==1)&&cnt<100)
{
a=a&0xdf;
}
P0=a;
P2=scn;
if(cnt==200)
{
cnt=0;
s++;
if(s==60)
{
m++;
s=0;
if(m==60)
{
h++;
m=0;
if(h==24)
{
h=0;
}
}
}
buf[0]=h/10;
buf[1]=h%10;
buf[2]=m/10;
buf[3]=m%10;
buf[4]=s/10;
buf[5]=s%10;
}
cnt++;
}
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