Article View: comp.sys.atari.st
Article #25135Re: mouses
From: pes
Date: Mon, 16 Feb 1987 10:38
Date: Mon, 16 Feb 1987 10:38
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1186 bytes
The unaccounted-for chip came to me in a dream. It's not relevant to the conversion of the Atari trakball to look like a mouse, but (working from memory) just to make the 'how it works when you buy it' bit complete -- The chip I couldn't remember what was is a twin mono-stable (one-shot). Its function in life is to 'kill' the output of the joystick 'D latch' if the ball stops moving in the appropriate direction -- so logically 'centering' the simulated joystick. As I recall it is triggered from one of the buffered pulse trains.
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arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!rutgers!seismo!mcvax!ukc!dcl-cs!bath63!pesReferences:
<8701270401.AA02677@ucbvax.Berkeley.EDU> <747@bath63.ux63.bath.ac.uk> <1486@megaron.arizona.edu> <773@bath63.ux63.bath.ac.uk>Show Full Headers
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!rutgers!seismo!mcvax!ukc!dcl-cs!bath63!pes From: pes@bath63.UUCP Newsgroups: comp.sys.atari.st Subject: Re: mouses Message-ID: <777@bath63.ux63.bath.ac.uk> Date: Mon, 16-Feb-87 05:38:33 EST Article-I.D.: bath63.777 Posted: Mon Feb 16 05:38:33 1987 Date-Received: Wed, 18-Feb-87 19:46:31 EST References: <8701270401.AA02677@ucbvax.Berkeley.EDU> <747@bath63.ux63.bath.ac.uk> <1486@megaron.arizona.edu> <773@bath63.ux63.bath.ac.uk> Reply-To: pes@ux63.bath.ac.uk (Paul Smee) Organization: AUCC c/o University of Bath Lines: 10