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Byron Jeff <byronjeff@mail.clayton.edu> writes:

> On Sat, Jan 05, 2013 at 03:54:34PM +0000, Rupert Swarbrick wrote:
>> Hi,
>>=20
>> Can anyone point out what I'm doing wrong with the following (minimal)
>> code? I can't seem to convince my 16F1824 to output anything on RA5 (pin
>> 2 in the DIP package).
>>=20
>> I presume that I've configured the pin to be doing something else, but
>> I've pored over the datasheet for ages and can't work out what I've
>> missed. Changing the BSF line to "bsf LATA, 4" switches on pin 3 as
>> expected. Does anyone have any ideas?
>
> Nothing sticks out. Have you tried a chip swap yet?

I hadn't, but it doesn't seem to help. Also, I vaguely remember having
weird behaviour with pin two a few months back (with a different
physical chip, of course), so I assumed it must be something with a
config option or the like.

> I agree with Jan-Eric that using the codes for the Configs is a good idea=
..

Shall do.

> Also I would suggest changing the gotos to branches, so that PCLATH can b=
e
> removed from the equation. With the enhanced parts, I very rarely use got=
o
> anymore.

Ooh! I hadn't noticed the BRA instruction.

> Finally is anything connected to RA5? There may be a load dragging the
> output buffer.

Just the multimeter :-)

Rupert

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