Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!oberon!sm.unisys.com!hplabs!hpda!hpcuhb!hpcllla!hpclisp!hpclkms!ken
From: ken@hpclkms.HP.COM (Kenneth Sumrall)
Newsgroups: comp.sys.atari.8bit
Subject: Re: Atari 800XL Parallel Bus Documentation
Message-ID: <1270016@hpclkms.HP.COM>
Date: 1 Feb 89 21:00:56 GMT
References: <307@ultb.UUCP>
Organization: Hewlett-Packard Calif. Language Lab
Lines: 19

/ hpclkms:comp.sys.atari.8bit / ajy2208@ultb.UUCP (A.J. Yarusso ) / 12:33 pm  Jan 30, 1989 /
>    For a long time I have been wanting to experiment with the parallel port
>in the back of my 800XL.  However, I can't find any info whatsoever about
>it.  I have the XL supplements to the tech notes, but it doesn't even mention
>the port....

A few years back either Analog or Antic published a four part series on
interfacing to the parallel port on the XL.  It doesn't mention the XE
parallel port, but it does present a full details for building an RS-232
port that runs over the parallel port, including hardware, and software
drivers.  I don't remember the issues, but if you need to know, I have them
at home and can look it up for you.

Ken "Parallel ports do it 8 at a time" Sumrall
ken%hpclove@hplabs.hp.com
...!hplabs!hpclove!ken

P.S.  My failing memory thinks that it was Antic magazine in the Jan. thru
Apr. issues of 1985, but I could be mistaken.