單片機+數碼館仿真失敗

ID:692206 · 發(fā)表于 2021-4-22 22:53

  仿真只顯示13v

#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f
};
uchar Tcount;
uint wei3,wei2,wei1,wei0,num;
bit timerflag,ADflag;
sbit AD_end       =P3^2;
sbit OE=P2^5;
sbit ST=P2^6;
void AD_INT() interrupt 0
{ADflag=1;
AD_end=1;
}
void T0_int()interrupt 1
{TL0|=0xb0;
TH0=0x3c;
if(--Tcount==0)
   {Tcount=20;
   timerflag=1;}

}
void delay(uint z)
{uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void main()
{
Tcount=20;
TMOD=0x01;
TL0=0xb0;
TH0=0x3c;
IT0=1;
TR0=1;
ET0=1;
EX0=1;
EA=1;

while(1)
{ P2=P2&0xf0|0x07;
  P0=table[wei0];
  delay(1);
  P2=P2&0xf0|0x0b;
  P0=table[wei1];
  delay(1);
  P2=P2&0xf0|0x0d;
  P0=table[wei2]|0x80;
  delay(1);
  P2=P2&0xf0|0x0e;
  P0=table[wei3];
  delay(1);
  if(timerflag==1)
{timerflag=0;
   ADflag=0;
   ST=1;
         ST=0;

   while(!ADflag);
      {OE=1;
      num=P1*20-2500;
      wei3=num/1000;
      wei2=num%1000/100;
      wei1=num%100/10;
      wei0=num%10;
      OE=0;
      ADflag=0;}
}
}
}

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