Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!ncar!news.miami.edu!umiami!jdeitch
From: jdeitch@umiami.ir.miami.edu (Jonathan Deitch)
Newsgroups: comp.sys.apple2
Subject: Re: //c serial ports.
Message-ID: <1991Mar27.234409.8398@umiami.ir.miami.edu>
Date: 28 Mar 91 04:44:09 GMT
References: <1991Mar26.191258.8367@umiami.ir.miami.edu> <1991Mar28.013526.17057@sserve.cc.adfa.oz.au>
Organization: Univ of Miami IR
Lines: 50

In article <1991Mar28.013526.17057@sserve.cc.adfa.oz.au>, pgc@csadfa.cs.adfa.oz.au (Phil Clark) writes:
> From article <1991Mar26.191258.8367@umiami.ir.miami.edu>, by jdeitch@umiami.ir.miami.edu (Jonathan Deitch):
>> In article <7175@munnari.oz.au>, a.guillaume@trl.oz.au (andrew guillaume) writes:
>>> 
>>> In article <1991Mar26.043509.24160@sserve.cc.adfa.oz.au>,
>>> pgc@csadfa.cs.adfa.oz.au (Phil Clark) writes:
>>>> I seem to remember reading somewhere, possibly in this newsgroup, that
>>>> Applesoft basic has problems keeping up with data via the serial ports of
>>>> a //c at greater than about 1200 baud. 
> 
>          (Lots & lots of unnecessary deleted!)
> 
> 
>> On the "Boat Anchor" //c, Apple had some design problems with the serial ports
> 
>                    (more lots deleted)
> 
>>BTW : they sometimes will give you the Unidisk 3.5"
>> motherboard as this upgrade for nothing extra.
> 
> 
> Yes, they will do this for you free!! of charge and the unidisc upgrade is
> included. I had this done but the problem is still there even afterward.
> 
> Any more ideas??
> 
> 
> Phil Clark [VK1PC]         Department of Computer Science,     Phone: 
>                            Australian Defence Force Academy,   +61 6 268 8157
> Email:                     Northcott Drive, Campbell,          Fax:
> pgc@csadfa.cs.adfa.oz.au   Canberra, Australia, 2600.          +61 6 268 8581

I have no idea what could cause this problem to continue, unless it's your
modem or cable or both at fault - or telephone line noise.  I've got more
unathorized stuff in my //c like MIDI ports and the like and have desoldered
and moved serial chips and the like and haven't had a bit of trouble.  I'm
using the //c right now via modem to call in to Miami's VAX.  I'm stumped as to
a computer based cause of your problem.

Try using a different modem or taking your //c to the computer center and using
a direct connect line with a shielded cable.

Other than that, I with you luck !

- Jonathan
 
------------------------------------------------------------------------------
Internet : jdeitch@umiami.miami.edu               | "Good musicians execute
------------------------------------------------- |  their music but bad ones
"I'm a Time Lord.  I walk in eternity !" - Dr Who |  murder it !!! "