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From: rs4u#@ANDREW.CMU.EDU (Richard Siegel)
Newsgroups: comp.sys.mac
Subject: Programming for High Baud Rates
Message-ID: <MS.V3.18.rs4u.80022e03.dorrance.ibm032.743.6@andrew.cmu.edu>
Date: Thu, 9-Apr-87 07:14:21 EST
Article-I.D.: andrew.MS.V3.18.rs4u.80022e03.dorrance.ibm032.743.6
Posted: Thu Apr  9 07:14:21 1987
Date-Received: Mon, 13-Apr-87 06:01:40 EST
Sender: daemon@ucbvax.BERKELEY.EDU
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I've heard that the serial ports on the Mac (all machines) can communicate
at up to a megabit (1024Kbaud??) per second, unclocked, and 230.4 KBaud,
clocked (this is Appletalk speed, yes?). I'm interested in doing high-speed
serial communications with some instrumentation, and I was wondering
how to set the baud rate that high. Using SerReset only allows
me to go up to 57.6 kbaud. On IM vol 2, page 254, a call
is described that allows you to set the baud rate to any value, which is
supplied as an *integer*, which limits me to 32K baud. I think. Is this true?
How do I get the most speed out of the ports, in terms of baud rate?

Thanks in advance for any help.

		-Rich