#include <p18f4580.h>
void main(void)
  {
    TRISAbits.TRISA4=1;
	TRISB=0;
    T0CON=0x68;		
    TMR0L=0;					
    while(1)					
      {
       do
        {
         T0CONbits.TMR0ON=1;			
         PORTB=TMR0L;				
        } 
        while(INTCONbits.TMR0IF==0);	
        T0CONbits.TMR0ON=0;			
        INTCONbits.TMR0IF=0;			
     }
  }