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Article #2278

Re: SCSI <-> parallel converter,

#2278
From: Richard Steven Walz
Date: Sat, 30 Mar 1996 06:46
46 lines
2967 bytes
In article <les-2503961647010001@lesmac.rfx.com>,
Les Dittert <les@rfx.rfx.com> wrote:
>In article <31508172.97D@tekram.com>, Karim Farghaly <karim@tekram.com> wrote:
>
>> Jerry Biehler wrote:
>terface.
>> > >
>> > > So, the idea is to use a SCSI/parallel converter (both 8-bit parallel
>> > > transmission designs) to allow a high speed printing through the printer
>> > > parallel port (with the associated software part).
>> > >
>> > > Does someone have heard about such a converter ? or have had a similar 
>
>Interesting idea , but the driver software for the printer has no idea of
>how to use the printer thru a SCSI port.
>An adapter that goes from ether net to the parallel printer would have a
>better chance of working. But , say on an HP inkjet printer , again I think
>a lack  of a driver would be the problem.
>
>Les Dittert ,ALT Systems. Hollywood CA.
>les@rfx.rfx.com
>http://www.rfx.com/folks/les
------------------------------------------------------
Sorry, Les, but it is clear that you don't come here often, do you?
The PC printer port can be used quite effectively for many large-scale
interface tasks with a minimum of knowledge by simply not treating it
as a printer, and by ignoring those BIOS and DOS routines, and
instead, simply treat it as three I/O addresses that have their bits
mapped directly to the pins of the connector, though some are
logically inverted, logical vs voltage, that is. This information is
available in the several parallel port FAQ files that are accessible
on many ftp and web sites. My ftp sites and their mirrors on other
continents are listed in my .sig . The filenames there of note are:
ibmlpt.faq (the famous and most thorough one by Zhahai Stewart),
krislpt.faq (a short reminder for old hands), and tomlpt.faq , which
is the beginners tutorial with examples of programming the parallel
port, even in BASIC ! And the idea of interfacing to SCSI bus is not
at all outrageous, as it HAS been done. Yes, it needs a driver, but
the writing of one is not so difficult a task as it might seem! I
believe there has been talk of one in TCJ of late!
-Steve Walz  rstevew@armory.com
-- 
-Steve Walz  rstevew@armory.com  ftp://ftp.armory.com/pub/user/rstevew
mirrored: ftp://ieee.cas.uc.edu/pub/electronics/faqs/ftp.armory.com
and Europe: ftp://ftp.cised.unina.it/pub/electronics/ftp.armory.com
and Oz: ftp://ftp.peninsula.apana.org.au/pub/electronics/ftp.armory.com
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References: <4ibllm$i82@news-sop.inria.fr> <4ijahk$njn@nadine.teleport.com> <31508172.97D@tekram.com> <les-2503961647010001@lesmac.rfx.com>

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Path: arc1-ca.pugleaf.net!news.scruz.net!rstevew
From: rstevew@armory.com (Richard Steven Walz)
Newsgroups: comp.periphs.printers,comp.periphs,comp.periphs.scsi,sci.electronics.misc
Subject: Re: SCSI <-> parallel converter,
Date: 30 Mar 1996 06:46:43 GMT
Organization: The Armory
Distribution: inet
Message-ID: <4jilcj$4ti@news.scruz.net>
References: <4ibllm$i82@news-sop.inria.fr> <4ijahk$njn@nadine.teleport.com> <31508172.97D@tekram.com> <les-2503961647010001@lesmac.rfx.com>
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