Hello,

    I'm building a little gadget using a PCB I've made some time ago.
This PCB was made for a PIC16F628 using it's internal 4MHz oscillator,
and the two XTAL pins are connected to two side-by-side LEDs on the PCB.

    Now, this gadget needs to run at 20MHz, so I'm soldering the XTAL
pins at those PCB holes made for the two LEDs. The thing is working very
well, but I don't have where to place the two (15-33pF) XTAL capacitors
on this PCB.

    My question is: Can I just leave out those caps? I know the caps are
needed for giving the oscillator better stability, but if this little
gadget are working ok without the caps, will it do any harm? Like
someday this gadget wouldn't startup, or will it suddenly stop...

    Best regards,

    Brusque

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