為什么我的單片機數碼管掃描不成功，實在找不出問題了，拜托大佬指點迷津

ID:148486 · 發表于 2019-5-17 13:36

#include<reg52.h>
sbit ENEND = P1^4;
sbit ADDR0 = P1^0;
sbit ADDR1 = P1^1;
sbit ADDR2 = P1^2;
sbit ADDR3 = P1^3;
unsigned char code numtab[] = {0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8,0x80, 0x90, 0x88, 0x83, 0xC6, 0xA1, 0x86, 0x8E};
unsigned char LedBuff[6]= {0};
unsigned int cnt = 0;
unsigned char i = 0;
void main()
{
unsigned long sec = 0;
ENEND = 0;
ADDR3 = 1;
P0 = 0xff;
TMOD = 0X01;
TH0 = 0xfc;
TL0 = 0x66;
TR0 = 1;
EA = 1;
ET0 = 1;
while(1)
{
if (cnt == 1000)
{
cnt = 0;
sec++;
if(sec>99)
sec=0;
LedBuff[0] = sec%10;
LedBuff[1] = sec/10;
}
}
}
/* 定時器0中斷服務函數控制位并顯示對應的數值*/
void Iterruptimer0() interrupt 1
{
TH0 = 0XFC;
TL0 = 0X66;
cnt++;
P0 = 0XFF;
switch(i)
{
case 0 : ADDR2 = 1;ADDR1 = 0;ADDR0 = 1;i++; P0 = numtab[LedBuff[0]];break;
case 1 : ADDR2 = 1;ADDR1 = 0;ADDR0 = 0;i=0; P0 = numtab[LedBuff[1]];break;
default : break;
}
}