Asynchronours Serial I/O - AN555
John Payson email (remove spam text)
> Actually, sharing the oscillator doesn't buy you any speed; you can
> go just as fast with separate clocks as you can with a single clock.
Sure it buys you speed. Once you've gotten the two PICs synchronized,
they can exchange unlimitted amounts of data, bidirectionally, at a rate
of 1 byte per 17 clocks (if the ports are located favorably). By
contrast, if you use non-synchronized clocks you couldn't do better than 3
clocks/bit, and even then you'd have to resync yourself at most every 30
bits or so.
In reply to: <199708200449.XAA08360@dfw-ix7.ix.netcom.com>
See also: www.piclist.com/techref/io/serials.htm?key=serial
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