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#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit LSA=P2^2;
sbit LSB=P2^3;
sbit LSC=P2^4;
sbit led1=P2^0;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
void delayms(uint);
void display(uchar,uchar);
uchar shi,ge,num,num1,num2;
void main()
{
TMOD=0x11;
TH0=(65535-45872)/256;
TL0=(65535-45872)%256;
TH1=(65535-45872)/256;
TH1=(65535-45872)%256;
EA=1;
ET0=1;
ET1=1;
TR0=1;
TR1=1;
while(1)
{
display(shi,ge);
}
}
void display(uchar shi,uchar ge )
{
P0=table[shi];
LSA=0; LSB=0; LSC=0;
P0=0xff;
delayms(5);
P0=table[ge];
LSA=1;LSB=0;LSC=0;
P0=0xff;
delayms(5);
shi=num/10;
ge=num%10;
}
void delayms(uint zms)
{
uint i,j;
for(i=zms;i>0;i--)
for(j=110;j>0;j--);
}
void T0_time()interrupt 1
{
TH0=(65535-45872)/256;
TL0=(65535-45872)%256;
num++;
if(num1==4)
{
num1=0;
led1=~led1;
}
}
void T1_time()interrupt 3
{
TH1=(65535-45872)/256;
TL1=(65535-45872)%256;
num2++;
if(num2==20)
{
num2=0;
num++;
if(num==60)
num=0;
}
}
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