On Sun, 5 Apr 2009, zwsdotcom@gmail.com wrote:
On Apr 5, 10:37 am, Michael Black <et...@ncf.ca> wrote:
here. I want to see if it's possible to modify the Macintosh M0100
[DE-9] mouse to work with the IIc [also DE-9]. No ADB in sight
YOu can't get much simpler than the original Macintosh mouse. The
mechanical wheels, the optocouplers, the 339 comparators to sharpen
up the signals, and the pushbuttons.
"pushbutton/S/"? :)
Oops, of course there was only one pushbutton.
If I needed a IIC mouse, I'd just modify a mouse and see if there were
Ow! Ow! My head, hitting the table over and over again!
This is exactly what I want to do. I have lots of Mac 9-pin mice. I've
looked inside and agree that it's amazingly simple. These mice do not
work with the IIc. Since I don't have access to a IIc mouse, I don't
know what the differences are. Whatever the critical parameter might
be, the Mac is apparently much less finicky, because according to
everything I've read, /all/ 9-pin mice will work with the Mac, but not
all of them will work with the IIc.
I've figured it out, sort of.
I did a search for the pinout of the Apple IIC mouse connector,
and the first one I checked is here:
http://support.apple.com/kb/TA39895
Right away, I see what someone did point out. It's not what's in
the mouse that matters, it's how to connect it to the IIC.
Pin 1 of the connector is labelled "mouseid" and if that page is
correct, it needs to be active to tell the controller that a mouse
is connected to it.