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51 timer and external interrupt

Publisher:asdfrewqppLatest update time:2015-10-16 Source: eefocus Reading articles on mobile phones Scan QR code
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#include

#define uint unsigned int
#define uchar unsigned char
 sbit p2_0=P2^0;
 sbit p2_2=P2^1;
 sbit p2_4=P2^2;
uchar num=11;
 uchar tt=0;
 uchar bai,shi,ge,bai1,num1;
 uchar code table[]=
 {~0x3f,~0x06,~0x5b,~0x4f,
~0x66,~0x6d,~0x7d,~0x07,
~0x7f,~0x6f,~0x77,~0x7c,
~0x39,~0x5e,~0x79,~0x71};
void delay(uint z);
void main()
{
  TMOD=0x01;//Set timing mode
  TH0=(65536-50000)/256;   //Calculate the timing time
  TL0=(65536-50000)%6;
  EA=1;  //Open the general interrupt
  EX0=1;
  IT0=1;
  ET0=1; //
  TR0=1; //Open 0 timer
   p2_0=1;
  p2_4=1;
 p2_2=1;

while(1)
    
//      if(tt==120)
    
//   { tt=0; 
 
     //  num=10;
 
//    } 
         
    
 
     
     
     
    
//  num=12;  
  shi=num/10;
  ge=num; 
  p2_0=0;
  P0=table[shi];
  delay(14);
  p2_0=1;
  p2_2=0;
  P0=table[ge];
  delay(14);
  p2_2=1;
      
   
    }
   
 
 


void delay(uint z)
{
 uint x,y;
 for(x=z;x>0;x--)
  for(y=110;y>0;y--); 
}
void ds() interrupt 1 
{
  TH0=(65536-50000)/256;
  TL0=(65536-50000)%6;
  tt++;
 
     
}
//void zd() interrupt 0
//{
// num++ ;
//}

Reference address：51 timer and external interrupt

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