Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!ames!hc!lanl!opus!whack
From: whack@nmsu.edu (Warren J Hack)
Newsgroups: comp.sys.atari.st
Subject: Re: ST @ 38400 baud???
Message-ID: <237@opus.NMSU.EDU>
Date: 28 May 89 20:00:14 GMT
References: <43609a62.14a1f@gtephx.UUCP> <1506@atari.UUCP> <8551@chinet.chi.il.us> <18870@cup.portal.com>
Reply-To: whack@opus.UUCP (PUT YOUR NAME HERE)
Organization: NMSU Astronomy
Lines: 29

Newsgroups: comp.sys.atari.st
Well, here goes again...

The postings about the cartridge port spurned some questions of my own
with (maybe) some answers for everyone else.  The E. Arthur Brown Co. is
selling two items for the ST cartridge port that I found intriguing.  
The first is an adaptor for the port to convert it into a standard 44 pin
connector that will fit directly with the Radio Shack prototyping boards.
For $15, they suggest such uses as RAM disks and clock boards.  The second
item is a 24 Bit I/O board for TTL level I/O that can be software configured
for either 24 bit individual I/O or 16 bit with 5 levels of interrupts.  
Instructions come with it to tell how to use this to WRITE to the port.  
For $50, this seems extremely intriguing.  

My questions concern using these for supporting expansion cards.  Could
these be used to support IBM-expansion boards such as VGA/EGA graphics or
to support a math coporcessor board, or something like that?  I am not a
very computer technically oriented person and would appreciate any responses
about these ideas (feasibility, possibility, ...).  If nothing else, this
gives those people looking for ways to use thier cartridge port an answer 
on WRITING to it.  Please e-mail me your repsonses and I will post the 
collective repsonses.  

Warren J. Hack
INTERNET:     whack@nmsu.edu
BITNET:       gast9042@nmsuvm1.BITNET

Disclaimer: I am not associated with E. Arthur Brown Co. or anyone else
            (except my wife)...