#include <reg52.h>
sbit ADDR2 = P1^2;
sbit ADDR1 = P1^1;
sbit ADDR0 = P1^0;
sbit ENLED = P1^4;
sbit ADDR3 = P1^3;
unsigned char code LedChar[16]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E};
unsigned char LedBuff[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
void delay_ms(unsigned int x)
{
unsigned int i,j;
if(x==1000)
{
for(i=0;i<19601;i++)
{
for(j=5;j>0;j--);
}
}
else while(x--)for(j=115;j>0;j--);
}
void main()
{
unsigned char Second=0;
ADDR3 = 1;
ENLED = 0;
ADDR2 = 0;
ADDR1 = 0;
ADDR0 = 0;
while(1)
{
LedBuff[0]=LedChar[Second];
P0=0x7F & LedBuff[0];
Second++;
if(Second>=10)Second=0;
delay_ms(1000);
}
}
4