Drew Vassallo wrote:
>
> My only comment is that you say "here's the relevant code section" or
> something similar, but if you have an unknown problem, how do you know
> what's relevant?
>
> For instance, you neglect to include your "context_restore" section.  Are
> you using a "retfie" to return from the ISR?


You just gave me an idea which caused me to take another look at the
code.   Yes I was using a 'retfie'.  But ... later in the ISR, in the TMR0 handler, I was clearing INTE, thus
effectively disabling the RB0 interrupt
the first time a TMR0 interrupt occurred.


Argghhh!  (Thanks for the hint that got me going in the right direction...)

--
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Tim Daneliuk
tundra@tundraware.com

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