24 Jun
1998
24 Jun
'98
8:36 a.m.
Date: Wed, 24 Jun 1998 23:38:41 +0100 (BST)
Reply-to: classiccmp(a)u.washington.edu
From: ard(a)p850ug1.demon.co.uk (Tony Duell)
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Re: Macintoshes...
>
>
> > So, how easy is it to crock up a keyboard and mouse for either machine?
> > Can I modify IBM gear to fit the bill?
>
> The 512K uses an older mouse that is internally compatible with a PC
> bus mouse or an Amiga mouse, just one button. I do not know the pinout
useful
info on hacking regular bus mouses for older 9 pin
mouse on mac machine snipped!
Yes, it's _strange_. 4 wires, +5V, Data, Clock, Ground. The mac end uses
the shift register in a 6522, the keyboard end uses a microcontroller
(8021?). Given a keyboard the protocol is probably hackable with a logic
analyser (future project?),
-tony
Tony,
You Should.
Why? Suppose, Every time a user have problem with their keyboard or
needs longer keyboard wire, finds a telephone wire and plugs in,
power up...
POW!
Dead keyboard controller IC in keyboard. No where to obtain but I
could be mistaken.
I think better off digging out that info on that programming and
recreate a new adapter using a PIC or easier to obtain
microcontroller IC.
Jason D.
email: jpero(a)cgo.wave.ca
Pero, Jason D.