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Article #1116

Re: > 9600 bps

#1116
From: Jerry Scoggins
Date: Tue, 29 Sep 1992 08:51
35 lines
1816 bytes
vhs@rhein-main.de sayz:
>In article <1992Sep23.064108.7652@unixg.ubc.ca> besler@geop.ubc.ca (Steve  
>Besler) writes:
>> 
>> 
>> 	I seem to remember from somewhere that NeXT serial ports can
>> not exceed 9600 bps.  Is this true?
>> 
>> 	Just wondering...
>> 
>> 	Steve Besler
>
>Wrong. I've been running kermit at 19.200bps for a year or so (on 2.1,
>obviously). I did have to hack kermit a *very* little to insert EXTA for
>19200bps and EXTB for 38400bps (which doesn't seem to work quite reliably).
>These values are defined in /usr/include/sys/ttydev.h
>Since they're non-UNIX-standard, they are not generally used.
>
>--
>Volker Herminghaus-Shirai (vhs@rhein-main.de)

Well, how about a little story...

I have a TurboColor running System 2.2   I use the SupraFax 14.4K with the 
hardware handshaking cable.  I originally had problems with IComm and 
TIP talking reliable at 38K.  I received transmit and receive errors on my 
modem with lousy recovery.  However, I had a temporary fix:  renice  
Yep, it worked.  Just giving it a higher priority was enough to get the data
when it interrupted.

However, I've upgraded my system RAM from 16Megs to 32Megs.  Now that my 
machine isn't having to swap/page memory, it doesn't miss those interrupts 
for the serial line.  Everything is peachy now.  :-)

++jerry(); // jscoggin@netcom.netcom.com
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Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!decwrl!csus.edu!netcom.com!jscoggin
References: <1992Sep23.064108.7652@unixg.ubc.ca> <1992Sep24.214436.18596@rhein-main.de>

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From: jscoggin@netcom.com (Jerry Scoggins)
Subject: Re: > 9600 bps
Message-ID: <0b+ph5m.jscoggin@netcom.com>
Date: Tue, 29 Sep 92 08:51:14 GMT
Organization: Netcom - Online Communication Services (408 241-9760 guest)
References: <1992Sep23.064108.7652@unixg.ubc.ca> <1992Sep24.214436.18596@rhein-main.de>
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