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From: wtm@neoucom.UUCP
Newsgroups: comp.sys.cbm
Subject: Re: M1 Mouse
Message-ID: <354@neoucom.UUCP>
Date: Thu, 8-Jan-87 16:50:10 EST
Article-I.D.: neoucom.354
Posted: Thu Jan  8 16:50:10 1987
Date-Received: Fri, 9-Jan-87 21:12:03 EST
References: <1837@sunybcs.UUCP> <352@neoucom.UUCP>
Organization: Northeastern Ohio Universities College of Medicine
Lines: 19
Summary: I might have been wrong...


Hi,

It seems that I might have goofed on my description of the 1350
mouse.  I was under the impression that it sent quadrature phase
pulses right to the db9 connector.  According to the technical
person at the local dealer, it can be interchanged with the Amiga
mouse.

Subsequently, some of the net people tell me that there is a 4 bit
microprocessor in the mouse that converts the chopper wheel output
quadrature signal into an emulation of pushing the buttons on the
joystick.

I guess I'll have to check with an oscilloscope to be sure.  One
thing I do know is that the 1351 mouse works very well with Geos,
and is worth the extra expense to get the Geos update disk.

Bill