David VanHorn wrote:
>
> >
> >Good point.  I'll have to try that even though it doesn't seem to be
> >logically the cause since the program code is the same in either case.
> >Only SPBRG, the baud divisor differs between tests.  I guess it is
> >another one of those "it can't be but is" situations.  Thanks for the
> >suggestion.
>
> I'm not having a problem with this .
>
> Your byte transmission time adds to whatever processing between bytes time
> there is.
> If you have a lot of that, then doubling the baud rate wouldn't make much
> difference.

My point is it is making a *lot* of difference--the "wrong" way.  At
19.2k the idle time between bytes is 55us whereas at 38.4k the idle time
is about 185us.

David Koski

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