To: menelli@tellabs.com
Subject: Re: PG controller board
Cc: glove-list@karazm.math.uh.edu
Message-Id: <9110221709.AA22019@roi.ca41.csd.mot.com>
Date: 22 Oct 91 17:09:19 PDT (Tue)
From: Lance Norskog <lance@roi.ca41.csd.mot.com>

Handshaking.

	There's no built-in hardware handshake from the PC parallel port
	side.  The only dumb thing is that the parallel port has no
	5V output.  You have to assign an output line as the 5V reference 
	and leave it up all the time, and hope it doesn't source much
	current.

What else can you do with the outboard CPU box?

	If you leave the power glove control code to the dumbest possible,
	there may be enough RAM left over for the cpu could to control a 
	chord (one-handed) keyboard.  This is just a pet project of mine.

	The PC joystick interface is really crummy: it forces you to
	poll the hardware card.  But the hardware is real potentiometers.
	So being able to put a bunch of pots on the analog inputs of
	the 6811 would also be handy.

	Also, a plug for regular Nintendo joysticks would be nice.  
	(Where you buy these plugs I don't know).  There are some
	ergonomic ones appearing in the toy stores.  There was even
	a chest-mounted one (controlled by your chin or something)
	announced by Nintendo two years ago and never sold.

Lance Norskog