[PIC] PIC16F877A PIC Capture Mode Not working

[asking]

i need to detect PWM signal of 50HZ. I have written simple code just to turn on led on Every Rising Edge. But my CCP Capture mode is not running. Please look at code, anything missing ? Please help..

// Interrupt Handler
void interrupt()
{

  // CCP1 Interrupt
  if(PIR1.CCP1IF == 1)   // if the CCP1 Interrupt flag is set...
  {
    PORTB.F5 = 1;
     PIR1.CCP1IF = 0;
  }
  else PORTB.F5 = 0;
}


void main() {
ADCON1 = 0x07;
CMCON = 0x07;
TRISA = 0b00000000;
PORTA = 0;
PORTB = 0;
PORTC = 0;
PORTD = 0;
TRISB = 0b00000000;
TRISC = 0b00000100;
TRISD = 0b00000000;


//CCP1 MODULE INITIALIZATION

T1CON = 0b00110001;
CCP1CON = 0b00000101;
INTCON = 0b11000000;


while(1)
{
// write program here
}

}

 

[thirunavukkarasu]

add CCP1IE=1; IN MAIN FUNETION. this will enable ccp1 interrupt

- - - Updated - - -

GIE=1; THIS WILL ENABLES THE GLOBAL INTERRUPT, with out setting this bit no interrupts will work

- - - Updated - - -

u are just checking the flag, with out enable the appropriate interrupt