Help NeededCapture Module:

[Rob1234]

Dear Readers,

I am generating a 30 ms signal using Timer 0 and i toggle a particular pin on a port. I capture this Signal and i want to toggle another pin based upon the Capture IF SET.

My Code

Code: Select all

MCU : PIC16F877A
Crystal Frequency : 8 MHz

// TO Capture a 30 ms signal and to Toggle a port pin.

void interrupt()
{
 if(intcon.tmr0if==1)
 {
   intcon.tmr0if = 0 ;

   PORTD.F0 = ~ PORTD.F0;
Tmr0 = 22;
 }

 else if(PIR1.CCp1if==1)
 { 
  PIR1.CCP1if = 0; 
  PORTD.F5 = ~ PORTD.F5;
}

 else if(PIR1.TMR1IF==1)
 { 
 PIR1.TMR1IF = 0;
}

}

 void main()
{

 TRISC.F2 = 1;           // Config PORTC Pin 2 = Input

 TRISD = 0x00;          // Config PORTD as output pins
 
 intcon.gie   = 1;
 intcon.peie  = 1;

intcon.T0CS = 0 ;                               // Timer 0 Internal Clock 
intcon.T0SE = 0 ;

TMR0 = 22;

Option_reg = 0x07;                           // 
 
PIR1.Tmr1IF = 0;                            // Timer 1 Interrupt Flag Cleared
PIE1.TMR1IE = 1;                           // Timer  1 Interrupt Enable Set

T1con = 0x01;                                  // Timer 1 Internal Clock

PIR1.CCP1IF = 0;                           // Capture Flag Clear
PIE1.CCP1IE = 1;                           // Capture Enable Set

CCP1CON = 5;                                // Capture Rising Edge 

 for(;;)
{                                           // Run a Blank Loop Infintely
}
}

When the code is executed, PORTD.F2 generates a good square wave of 30 ms interval.. but .. the PORTD.F5 doesnt toggle..

Please help me out with the Capture Module.

Your guidelines are most welcome.

Rob.