On 10/19/05, Laszlo Zsolt Nagy <gandalf@designaproduct.biz> wrote:

> Now that this is working, I plan to create an interrupt handler; so that
> when a command arrives from the COM port,
> the PIC will process it immediately; but do its normal tasks otherwise.
> One command will be two or four bytes (sent
> over the USART). I think I need to create a tiny stack and fill it up in
> the interrupt handler. Finally, process the command
> only after all of command bytes has arrived.
>
> I have never written an interrupt handler. I read the docs about
> interrupts, but I'm not sure how to start. Can you please
> point me to an example? (Especially, 18F452 or compatible, if possible.)
> The documentation only has code fragments,
> not a complete program. It would be easier to understand a working
> example than develop from scratch.

[Microchip Application Notes AN774]
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en012073


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