piclist 2000\11\12\163435a >
Thread: Crystals and Cap's
face BY : David VanHorn email (remove spam text)

>Oh and I've also tried a 20MHz crystal as well and still nothing. I must be
>doing something really silly. Why will the 10MHz one work and not the 16MHz.
>Surely it can ony be the capacitance? Do I just try loads of different

Something else must be wrong.
I'm no expert on the pic driver ckt, I know it has several modes, as you
mentioned, and I've seen mention of series resistances, and paralell...
Never seen so many variables on a micro's osc before.

I'd stick with the right caps though.

One thing to check. Do the caps connect DIRECTLY to the pic's ground pin?
They definitely should. I've not seen it stop the osc before, but
connecting them anywhere else opens the door for EMI, in both directions.

Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9

http://www.piclist.com hint: To leave the PICList


In reply to: <001601c04ced$917814e0$242aff3e@atlas800>
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