Gerhard Fiedler <PICLIST@mitvma.mit.edu> wrote:

> > If you just want to use a crystal instead of a full-blown
> > oscillator, daisy-chain the two PICs: One crystal leg to PIC#1's
> > OSC1, PIC#1's OSC2 to PIC#2's OSC1, PIC#2's OSC2 to the other
> > leg of the crystal).  Some tinkering with the load capacitors is
> > likely to be required.
>
> Hey, that's something new... You think that works better than
> connecting the crystal to one PIC in a traditional form, and then
> going from this PIC's clock output to the other PIC's clock input?

    Actually, no.

    Daisy-chaining two PICs like that shouldn't work at all, for a
    number of reasons, not the least of which is the added
    180-degree phase-shift of the second PIC's oscillator.

    I have no idea what I was thinking; please forget you ever read
    that post.

    -Andrew

=== Andrew Warren -- aiw@cypress.com
=== Principal Design Engineer
=== Cypress Semiconductor Corporation
===
=== Opinions expressed above do not
=== necessarily represent those of
=== Cypress Semiconductor Corporation

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