Well, I'm going to look more closely whats is going on with PEIE,
everybody assumes it's the origin of my problems, so let's dig the code
again..


[ ] s
Horta


----- Original Message -----
From: Rudy Rudy <piclist@RUDYRUDY.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, January 28, 2002 5:14 PM
Subject: Re: [PIC]: 628 Comparators, they are devil's creatures or what?


> Horta,
>
> Nope.  PEIE is NOT always on.  It's OFF by default.  If you haven't been
> turning it on, this might be the problem.  And TMR0 does not depend on
> PEIE.  Again, look at page 107 in the datasheet.
>
>
> ------------------
> Rudy Rudy
> http://www.rudyrudy.com
> rudy@rudyrudy.com
> ------------------
>
>
> >     YEP, PEIE is on and always on because I have another interrupt
> working
> > ok(  TMR0... remember?..).
> >
> >     I'm still looking for help but I have D/A routine working ok with
> > pooling aproach, testing C2OUT for end of convertion purpose. The
> interupt
> > solution would be much more elegant  :
> >
> >     Thanks a lot for your help so far.
> >
> > [ ]s
> > Horta
> >
> >
> > ----- Original Message -----
> > From: Rudy Rudy <piclist@RUDYRUDY.COM>
> > To: <PICLIST@MITVMA.MIT.EDU>
> > Sent: Monday, January 28, 2002 1:32 PM
> > Subject: Re: [PIC]: 628 Comparators, they are devil's creatures or
> what?
> >
> >
> > > Horta,
> > >
> > > Have you enable PEIE ???  You also need to set PEIE bit (in addition
> to
> > > GIE, CMIE).  Look at spec sheet page 107.
> > >
> > > ------------------
> > > Rudy Rudy
> > > http://www.rudyrudy.com
> > > rudy@rudyrudy.com
> > > ------------------
> > >
> > >
> > > >      Hi fellows, I'm living in hell since I started to write a D/A
> > > interrupt
> > > > driven subroutine. Does anybody has any tip I don't have?
> > > >
> > > >  CMCON = 5    : using only 1 comparator
> > > >
> > > >  Things I observed:
> > > >
> > > >  1) if I disable comparators interrupt enable flag (CMIE) inside
> the
> > > >  interrupt routine, and enable it again later in the main program
> i do
> > > not
> > > >  get any further interrupt (duh?) (I have a bit being forced to
> one at
> > > the
> > > >  entry and to 0  at the int sub routine exit). In the other hand I
> > > have T0
> > > >  interrupt running absolutelly flawlessly refreshing my display
> > > >
> > > >  2) Probabily the comparators have no histeresis because I can
> observe
> > > until
> > > >  1 to 8 pulses in my spy bit( see above), it's not a problem
> because
> > > I'm
> > > >  concerned about the first one so I can disregard the others.
> > > >
> > > >      I'm relatively confident I'm taking care of  GIE, CMIE and
> CMIF
> > > bits, I
> > > >  have to deliver this software tomorrow morning but I'm almost
> giving
> > > up
> > > > does
> > > >  anybody have any advise????
> > > >
> > > >  Thanks in advance
> > > >  Horta
> > > >
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