#include <reg51.h>
sbit T1 = P3^5;
void main(void)
  {
    T1=1;				
    TMOD=0x60;			
    TH1=0;				
    while(1)			
      {
       do
        {
          TR1=1;		
          P1=TL1;		
        } 
       while(TF1==0);		
       TR1=0;			
       TF1=0;			
     }
  }