Path: utzoo!mnetor!uunet!husc6!mit-eddie!uw-beaver!cornell!rochester!PT.CS.CMU.EDU!andrew.cmu.edu!cb1p+
From: cb1p+@andrew.cmu.edu (Chris Beasley)
Newsgroups: comp.sys.amiga
Subject: RE: Mouse Help
Message-ID: <gW6szIy00VU1E-I0aT@andrew.cmu.edu>
Date: 19 Feb 88 01:13:56 GMT
Organization: Carnegie Mellon University
Lines: 11

At first guess it seems like it would be pretty complicated to interface
a serial mouse to the Amiga mouse port because the Amiga mouse puts out
two quadrature signals which correspond to the optical encoders on the
ball.  The serial mouse has some counting logic and a UART to convert the
quadrature to a count and transmit that serially.  To make an interface of
this sort you would probably need another UART for the serial intergface and
then some way of turning the data back into quadrature.  It's possible,
however, that you could get an optical mouse with a quadrature output or
hack an existing one.

Chris