#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit D1=P1^0;
sbit dula=P2^6;
sbit wela=P2^7;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f};
uchar a,b,m_shi,m_ge,s_shi,s_ge,s_num,m_num;
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void display(uchar m_shi,m_ge,s_shi,s_ge)
{
dula=1;
P0=table[s_shi];
dula=0;
P0=0xff;
wela=1;
P0=0xfe;
wela=0;
delay(5);
dula=1;
P0=table[s_ge];
dula=0;
P0=0xff;
wela=1;
P0=0xfd;
wela=0;
delay(5);
dula=1;
P0=table[m_shi];
dula=0;
P0=0xff;
wela=1;
P0=0xfb;
wela=0;
delay(5);
dula=1;
P0=table[m_ge];
dula=0;
P0=0xff;
wela=1;
P0=0xf7;
wela=0;
delay(5);
}
void t0() interrupt 1
{
TH0=(65536-45872)/256;
TL0=(65536-45872)%256;
a++;
if(a==4)
{
a=0;
D1=~D1;
}
}
void t1() interrupt 3
{
TH0=(65536-45872)/256;
TL0=(65536-45872)%256;
b++;
if(b==1)
{
b=0;
s_num++;
if(s_num==60)
{
s_shi=0;
s_ge=0;
m_num++;
if(m_num==60)
{
m_shi=0;
m_ge=0;
}
}
m_shi=m_num/10;
m_ge =m_num%10;
s_shi=s_num/10;
s_ge =s_num%10;
}
}
void main()
{
TMOD=0x11;
TH0=(65536-45872)/256;
TL0=(65536-45872)%256;
TH1=(65536-45872)/256;
TL1=(65536-45872)%256;
EA=1;
ET0=1;
ET1=1;
TR0=1;
TR1=1;
while(1)
{
display(s_shi,s_ge,m_shi,m_ge);
}
}
