On Sunday, Jan 4, 2004, at 05:04 US/Pacific, Wouter van Ooijen wrote:

> for the sake of the argument let's say 3% deviation is OK. Mind
> you, that is *total* deviation. How accurate do you assume the peer
> side
> is? 2%, like you claim for the PIC side?
>
There ought to be a whole slew of applications where it is valid to
assume
that the other side is at least crystal controlled (ie a PC or similar)

That doesn't mean that it will be perfectly on speed, of course.  Most
commercial HW uarts require you to pick a BRG crystal that provides 0
error only on SOME of the available bitrates.

BillW

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