/* Main.c file generated by New Project wizard
*
* Created: ?? 5? 18 2017
* Processor: AT89C51
* Compiler: Keil for 8051
*/
#include
#include
#define uchar unsigned char
uchar u = 0,scond = 0;
uchar duan[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
void delay()
{
uchar j = 100;
while(j--);
}
void main(void)
{
TMOD = 0x01;
ET0 = 1;
TR0 = 1;
EA = 1;
TH0 = (65535-50000)/256;
TL0 = (65535-50000)%256;
P2 = duan[scond/10];
P3 = duan[scond%10];
while(1);
}
void timer(void) interrupt 1
{
TH0 = (65535-50000)/256;
TL0 = (65535-50000)%256;
u++;
if(u == 20)
{
u = 0;
scond++;
if(scond == 60)
{
scond = 0;
}
}
P2 = duan[scond/10];
P3 = duan[scond%10];
}
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