#include "p18f458.h"
void CCP1_ISR(void);
void rising(void);
void falling(void);
unsigned char disp = 0;
unsigned char rf = 0;
#pragma interrupt chk_isr 
void chk_isr (void)
{
  if (PIR1bits.CCP1IF==1)
    CCP1_ISR();
}
#pragma code My_HiPrio_Int=0x0008
void My_HiPrio_Int (void)
{
  _asm
  GOTO chk_isr
  _endasm
}
#pragma code
void main()
  {
    CCP1CON=0x05; 		
    T3CON=0x0;  		
    T1CON=0x0; 		
    TRISB=0x0; 			
    TRISD=0x0; 			
    TRISCbits.TRISC2=1; 	
    CCPR1H=0x0; 		
    CCPR1L=0x0; 		
	  PIE1bits.CCP1IE=1;	
	  INTCONbits.PEIE=1;	
	  INTCONbits.GIE=1; 	
	  while(1)
	  {
      TMR1H=0x0; 		
	    TMR1L=0x0; 		
      while(disp==0); 	
	    disp=0;       	
	    TMR1L-=15; 		
	    PORTB=TMR1L; 	
	    PORTD=TMR1H; 	
	  }
	}
void CCP1_ISR()
  {
    if(rf==0) rising();
	  else falling();
	}
void rising()
  {
	T1CONbits.TMR1ON=1; 		
	rf=1; 				
	CCP1CONbits.CCP1M0=0; 	
	PIR1bits.CCP1IF=0; 		
  }
void falling()
  {
	T1CONbits.TMR1ON=0; 		
	disp=1;   				
	rf=0;					
	CCP1CONbits.CCP1M0=1; 	
	PIR1bits.CCP1IF=0; 		
	}