LZ: Mac Serial Link

Subject: LZ: Mac Serial Link
From: A.K.A. TheWiz <dankna@bergen.org>
Date: Thu, 3 Oct 1996 14:44:56 -0400 (EDT)
In-Reply-To: <Pine.A32.3.93.961003111010.69526A-100000@gpu3.srv.ualberta.ca>

> I was thinking about trying to use the actual in/ out pins... or maybe the
> external floppy port.  Oooh, better yet, SCSI!!! :)   As if that would
> work. You might be able to assert cts and rts by hooking both ports
> together, and opening "/pAin" and "/pAOut" and toggling the "openness" of
> "/pBin" and "/pBout"  Or maybe a hardware "bit dropper" that only
> transmits one of eight bits, but expands a bit into a byte...


  Of course, then you need two connectors.  Still, it might be worth 
looking into.  But shouldn't RS-422 have it's own method for flow 
control?


  How do you use the actual I/O pins?  Inside Macintosh &amp; "The Guide to 
Macintosh Family Hardware" both yield nothing on low-level serial port 
access.  There's info about the serial port hardware, &amp; about the control 
software, but nothing else (that I could see).  Did you find something I 
didn't?


                     /***********************************
                     *           Daniel Knapp           *
                     *       FeatherWate Software       *
                     *     email: dankna@bergen.org     *
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                     * The sysop is in Berkely, though. *
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