#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar tab[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E};
uchar data_H,data_L;
uchar a,b;
void delay(uint k)
{
uint m,n;
for(m=0;m<k;m++)
{
for(n=0;n<120;n++);
}
}
void display(void)
{
P2=0x01;
P0=tab[data_H];
delay(1);
P2=0x02;
P0=tab[data_L];
delay(1);
}
void count0() interrupt 1
{
TH0=0xFF;
TL0=0xFF;
delay(20);
if(T0==0)
{
if(a==99)
a=0;
else
a++;
}
}
void datain(void)
{
data_L=a%10;
data_H=a/10;
}
void T0_init(void)
{
TMOD=0x05;
TH0=0xff;
TL0=0xff;
TR0=1;
ET0=1;
EA=1;
}
void main(void)
{
TMOD=0x05;
TH0=0xff;
TL0=0xff;
ET0=1;
TR0=1;
EA=1;
a=0;
T0_init();
while(1)
{
datain();
display();
}
}
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