>Bob:
> > > Anybody have any idea how much OSCTUNE 'pulls' the internal oscillator
> > > frequency in nanoWatt PICs? (like the PIC18F2320, for example). I
> > > couldn't seem to find anything in the datasheets.
>
>Olin:
> > I don't think I've ever seen a spec for that.  I think the only thing
>you
> > can rely on is that it can pull the internal oscillator enough so that
>one
> > of the settings results in the specified frequency within the specified
> > tolerance.
>
>Bob:
>I was afraid of that.
>
>Actually, according the datasheet I was looking at (18F2320), they don't
>even specify a tolerance. They say +/- 1 % typical, untuned, but give no
>maximum error.

So does that imply that the error for this is +/- 1% across the entire width
and breadth of the temperature spectrum, or does the error begin to go
south at temp extremes, and to a point where OSCTUNE can no longer
tug it back into line?

I guess I'll find out soon enough, because I'm working on a nanoWatt
project now that may or may not use the internal oscillator.

Mike H.

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