It's not a crystal designed to work in 3rd overtone mode is it?
RP

On 15/11/06, Przemyslaw Lopaciuk <pic@amusementcity.com> wrote:
> Hi,
> I'm using PIC18F8621 with 40 MHz crystal and I've just tested it with an oscilloscope.
> The odd thing is that it shows that the frequency is about 13MHz on both outputs (X1 and X2).
> What could be the reason of it? Load capacitance?
>
> I would be very grateful for every advice.
>
> Thank you,
> Sam
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