You set up the the port if analog or digital by ANSEL -- you can set which
port is analog and which is digital.

Tamas


On 04/09/06, john <john@raystorm.co.uk> wrote:
>
> How do you  set cmcon if you still want to use one (or 2) of the analog
> comparators, but require the rest digital, or is there another way to
> set this?
>
> Regards
>
> John
>
> Bob Axtell wrote:
>
> >Renzo wrote:
> >
> >
> >>I have a circuit, mainly a counter, with Led display driven by a
> >>16F84a that runs perfectly.
> >>I changed the chip with a 16F628A , no change in the circuit I only
> >>replaced in the program the RAM beginning with 20h instead of 0Ch and
> >>of course processor and include file..
> >>Now to start I have to momentary ground Rb0 and Rb4 never change.
> >>
> >>There are any other replacement to do? There is some article that
> >>deal with this problem?
> >>Thanks
> >>Renzo Giurini
> >>
> >>
> >>
> >>
> >There are a few other changes, too. Look at the Microchip Spec sheet for
> >the PIC16F628A.
> >At the very least, CMCON will have to be loaded with 7 to turn off the
> >analog comparators,
> >and enable digital signal operation.
> >
> >--Bob
> >
> >
>
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