I'm using this as the resonator.  It has built in caps.
http://www.ecsxtal.com/pdf2/ZTT.PDF

ZTT-4.00MG
  -Dan


----- Original Message -----
From: "Peter Onion" <ponion@SRD.BT.CO.UK>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Friday, February 01, 2002 5:21 AM
Subject: Re: [Pic]: Measuring resonator frequency


> On 01-Feb-02 Dans_PIC_Stuff wrote:
> > How can I connect a scope to a resonator to measure it's actual
frequency?
> > I took a 16F84 with a 4MHz resonator to my Electronics AC circuits class
and
> > tried testing it on one of their scopes but it didn't look too prety and
it
> > made the PIC's program slow down dramatically.  Any tips?
>
> Does your 'scope probe have a "x10" setting ?
>
> If so try using that as it will have less of a effect on the oscillator
circuit.
> (Don't forget that the scope will display one tenth of the signal
apmlitude).
>
> Also it sounds that the oscillation is marginal if connecting a scope
probe can
> upset the clock speed of the PIC.  Are you using the recomended capacitors
in
> the circuit ?
>
> Peter.
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads