Emm, sorry I found the problem.
It was the line CCP2CON =3D   0x00;. Deleting this line it works.



-----Original Message-----
From: Carlos Ojea <carlosojea@leveltelecom.es>
To: pic microcontroller discussion list <PICLIST@MITVMA.MIT.EDU>
Date: mi=E9rcoles 26 de diciembre de 2001 13:31
Subject: [PIC]: CCP2 does not interrupt


>Hello :
>
>I want to use ccp2 in capture mode, but I dont understand why CCP2IF is
>always '0'.
>
>I do this init:
>
> TMR3H =3D   0x00;
> TMR3L =3D   0x00;
> T3CONbits.TMR3CS =3D  0;
> T3CONbits.TMR3ON =3D  1;
>
> CCP2CON =3D   0x00;
> TRISBbits.TRISB3=3D  1;
> CCP2CON =3D   0x04;
> PIR2bits.CCP2IF =3D  0;
> PIE2bits.CCP2IE =3D  1;
> INTCONbits.PEIE =3D  1;
> INTCONbits.GIE  =3D  1;
> message =3D 0;
>
>And then, in my interrupt routine I do this:
>
>void InterruptHandler()
>{
>
> if(PIR2bits.CCP2IF && PIE2bits.CCP2IE)
>
>
>        PIR2bits.CCP2IF =3D 0;
>        message =3D 1;
> }
> return;
>}
>
>Value of 'message' is always 0 because CCP2IF is always 0, and I am sure
>that in my RB3/CCP2 pin I have a signal changing between 5v and 0v every
>second.
>
>What is happening?
>
>

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