On 9 July 2010 14:55,  <chiptech@vsnl.com> wrote:
> Matt,
>
>> It might be better if you include all of the code you are running. You
>> do not show any of the setup here. Have you set RC1/2 as digital pins?
>
> Yes, in ANSEL.
>
>> At power up, these pins will be configured for digital inputs.
>> Either try clearing the relevant bits in ANSEL, or use RC4/5
>> Also, make sure that you have cleared the relevant bits in TRISC to
>> set the pins as outputs.
>
> Yes.
>
> I have mentioned tha the o/p toggles between +5V and 0V at low frequency but at higher frequencies, it does not reach 0V but reaches only 1V.

Have you tried using RC4/5, to elimitate any possible interference
from the analogue circuitry on RC1/2?

Matt
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