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Article #5201

Re: Pointer needed on bi-direction parallel i/o

#5201
From: Bill Seymour
Date: Fri, 07 Sep 1990 17:33
45 lines
2572 bytes
In article <dillon.5762@overload.Berkeley.CA.US> dillon@overload.Berkeley.CA.US (Matthew Dillon) writes:
:In article <1990Aug29.202423.25341@agora.uucp> billsey@agora.uucp (Bill Seymour) writes:
:>
:>Normally, you just jumper
:>between select and acknowledge for two machines.
:
:    Yes, exactly.  I dunno how you would go about making such a cable, but
:    the connections are the same.

	Seems to be a simple enough task with ribbon cables. Build a gender
changer type gizmo on one end that does the jumpering (maybe conversion
between 1000 and 2000 parallel port at the same time) then hook each machine
into a chained ribbon cable. Just like with SCSI.

:    I think Doug needs to add a few
:    additional options to NET: to support more than two amigas, setting
:    UNIT=2 will not work (it only checks 0, non-0 from what I understand)

	I, for one, will keep on bugging him. :-} Too bad he has to work
for a living... He could get so much more PD done if he didn't...

:    Three amigas will probably work but likely 4 will be unreliable... one
:    would need to make a circuit board with real open collector drivers (use
:    the same spec as IEEE-488 for line loading).

	I'll have to start looking into this... Maybe I'll end up with a whole
bunch of little circuit boards that hook to each machines parallel port...
Gee, I could cenvert to fiber at the same time and allow for *long* networks.
Put in things like switches to go between printer/network... :-}

:					    -Matt
:
:>     -Bill Seymour		...tektronix!reed!percival!agora!billsey
:
:    Matthew Dillon	    dillon@Overload.Berkeley.CA.US
:    891 Regal Rd.	    uunet.uu.net!overload!dillon
:    Berkeley, Ca. 94708
:    USA


-- 
     -Bill Seymour             ...tektronix!reed!percival!agora!billsey
=============================================================================
Bejed, Inc.       NES, Inc.        Northwest Amiga Group    At Home Sometimes
(503) 281-8153    (503) 246-9311   (503) 656-7393 BBS       (503) 640-0842
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Message-ID: <1990Sep7.173321.4731@agora.uucp>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!orc!inews!iwarp.intel.com!psueea!parsely!agora!billsey
References: <dillon.5650@overload.Berkeley.CA.US> <1990Aug29.202423.25341@agora.uucp> <dillon.5762@overload.Berkeley.CA.US>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!orc!inews!iwarp.intel.com!psueea!parsely!agora!billsey
From: billsey@agora.uucp (Bill Seymour)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Pointer needed on bi-direction parallel i/o
Message-ID: <1990Sep7.173321.4731@agora.uucp>
Date: 7 Sep 90 17:33:21 GMT
References: <dillon.5650@overload.Berkeley.CA.US> <1990Aug29.202423.25341@agora.uucp> <dillon.5762@overload.Berkeley.CA.US>
Organization: Open Communication Forum
Lines: 45