How does one figure the size of the caps to use with the crystals.  4pf,
10pf ? I find different values in others projects.
Is there a formula specific to the freq, or is it an isolation mechanism
where I could dip into my big bag of .01uf's to get the job done just as
well?

Thanks

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Mike Harrison
> Sent: Tuesday, June 11, 2002 10:30 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC] - Serial Woes and Crystals
>
>
> Maybe he means the resonator error plus the error from using 20MHz
> rather than 18.<whateveritis> to get standard baud rates ?
>
> On Tue, 11 Jun 2002 08:53:36 -0600, you wrote:
>
> >At 05:16 PM 6/10/02 -0400, Rick C. wrote:
> >>20 mhz resonators aren't accurate enough for standard serial
> baud rates. Yes,
> >>you need 2 caps on the xtal and almost any of the ones Digikey
> sells will
> >>work.
> >
> >I beg to differ - 20 MHz resonators ARE accurate enough for serial baud
> >rates!  Every resonator I have used is accurate to better than 0.5% which
> >is plenty good enough.
> >
> >dwayne
> >
> >--
> >Dwayne Reid   <dwayner@planet.eon.net>
> >Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
> >(780) 489-3199 voice          (780) 487-6397 fax
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