Path: utzoo!attcan!uunet!aplcen!uakari.primate.wisc.edu!brutus.cs.uiuc.edu!apple!dlyons
From: dlyons@Apple.COM (David A. Lyons)
Newsgroups: comp.sys.apple
Subject: Re: Appletalk and Serial Ports
Message-ID: <39143@apple.Apple.COM>
Date: 2 Mar 90 20:05:56 GMT
References: <0ZvSrYi00VRhM4YlZO@andrew.cmu.edu>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 24

In article <0ZvSrYi00VRhM4YlZO@andrew.cmu.edu> jm7e+@ANDREW.CMU.EDU ("Jeremy G. Mereness") writes:
>What is it with the //GS and Appletalk? I am chagrined to discover
>that I cannot use my serial port if I also use Appletalk!
>
>I haven't discovered what the firmware is going to do, i.e. just
>turning on the Appletalk firmware in the control panel, but if
>Appleshare drivers are installed and running on the system, the
>machine is bombarded with interrupts that, among other things like
>hinder performance, raise hell with communications through the modem
>port!

It works for me--don't know what the problem is for you.  I've successfully
done 9600-baud communication through one serial port, while using the
other one for AppleTalk.  I didn't notice any dropped characters.  The
com program was using interrupts, intercepting the serial interrupt
vector.
-- 
David A. Lyons, Apple Computer, Inc.      |   DAL Systems
Apple II Developer Technical Support      |   P.O. Box 875
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