Just a few remarks...

Note that on many of the newer parts (all nanoWatt'ers, both
16- and 18-series, I think (?)) a zero value in the osccillator
tuning (OSCTUNE), actualy meens that you are at the specified freq
(within limits as specified in the data sheet, of course). On these
there is no factory programmed constant, since the intosc is callibrated
as it is.

> For flash parts I am just going to determine a new OSCCAL constant using
> the experimental rig I set up. But that won't do me any good for OTP
> parts, which by my current evidence seems to mean I can't spec them
> where clock accuracy is needed (RS232 synth, eg.).

Ever heard of those things called "crystals" ?

Jan-Erik.

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