Nigel Duckworth wrote:
>
> My project is a gas fire controller using a 16F873, during the ignition
> sequence the program will regularly restart as if a hardware reset has been
> performed, I do not have the watchdog enabled.
> The source of the noise is the mains powered spark generator which my
> customer insists must remain on the same PCB.

I had the same problem with an PIC powered ignition system. The PICs
don't like strong EMI near them, so you'll need to shield the PIC or the
spark generator or both.

--
Best regards

Tony

ICmicro's
http://www.picnpoke.com
mailto:sales@picnpoke.com

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu