Newsgroups: comp.sys.amiga.hardware
Path: utzoo!censor!comspec!darrell
From: darrell@comspec.uucp (Darrell Grainger)
Subject: Re: 19200baud amiga
Organization: Comspec Communications Inc., Toronto Ontario Canada
Date: Thu, 14 Feb 91 02:44:48 GMT
Message-ID: <1991Feb14.024448.15788@comspec.uucp>
Summary: Getting 19200 on an A2000
References: <4741@mindlink.UUCP> <1991Feb10.232155.19137@cunixf.cc.columbia.edu>

In article <1991Feb10.232155.19137@cunixf.cc.columbia.edu>, es1@cunixb.cc.columbia.edu (Ethan Solomita) writes:
> In article <4741@mindlink.UUCP> Harvey_Taylor@mindlink.UUCP (Harvey Taylor) writes:
> >In Msg-ID: <CSHORT.91Feb4170947@aiaia.nmsu.edu>, cshort@nmsu.edu
> >                                               (Spmg*d (chris)) writes:
> >|hi
> >|
> >|i've got my amiga 1000 at work wired (pins 2,3,7) to a sparc station.
> >|the setup works great at 9600 baud, but i would really like to run
> >|things at 19,200 (i'm greedy, eh). here's the problem:
> >|
> >|when i cat a large file i get overflow errors &
> >|when i try to d/u load i get bad CRC's. i'm using Atalk III and
> >|unix based send zmodem (sz 3.07)
> >|
> >|any suggestions. again this setup works fine at 9600 baud.
> >|
> >
> >    The problem is the serial.device. I have heard that it was supposed to
> > be okay at 19.2K baud tho.
> 
> 	I use 19.2 all the time, through a direct ROLM hookup
> though, no modem. I have never had a problem, but then my
> experience is only with an 020 and 030. It is possible that the
> 68000 isn't fast enough to handle it. Make sure nothing else is
> running in the background, competing for time.
> 	-- Ethan

 I have setup an Amiga 2000 (unaccelerated) with a USRobotics HST and Atalk-III
at 19200 baud with 8 colours and no problems. The trick is to enable RTS/CTS
handshaking and make sure the modem is doing the same.

 In the case of connecting to a SPARCstation you have to make sure the cable
you are using supports the RTS and CTS lines plus the SPARCstation has to
have RTS/CTS handshaking enable. This might slow things down a little but not
as much as the CRC errors.

Darrell Grainger 

