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Date: Fri, 11 Oct 1991 19:41:23 +0200
From: Juri Munkki <jmunkki@hila.hut.fi>
Message-Id: <199110111741.AA01040@hila.hut.fi>
To: glove-list@karazm.math.UH.EDU
Subject: Macintosh...
As far as I know, Macs do not have parallel ports. Of course it is possible
to use a SCSI port as a parallel port, but it takes some logic and if you
keep things simple, you have to forget about using a proper SCSI protocol.

The serial port should be quite adequate for the glove. The only problem
is that there are only two serial ports. I already have a modem connected to
the other and will soon have localtalk on the other. This still leaves the
Sega 3D glasses and my audio sampler unconnected.

A 68HC11 board with a SCSI interface would probably be the optimal
solution. I could connect the sega glasses and the powerglove to this
hardware box. I assume that at least some versions of this processor
have some EPROM and RAM, so the board would need a clock crystal,
a SCSI-chip and a VIA. The 6522 VIA has a shift register that could
easily be used to read the glove. The other I/O lines could be used
to control the Sega glasses.

I know someone at Microsoft who has a small ADB box based on an Intel
processor. I don't know how well his system works, but I do know that
ADB provides +5V and it has some room for expansion.

   ____________________________________________________________________________
  / Juri Munkki	    /  Helsinki University of Technology   /  Wind  / Project /
 / jmunkki@hut.fi  /  Computing Center Macintosh Support  /  Surf  /  STORM  /
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