Macintoshes...

From: jpero_at_mail.cgo.wave.ca <(jpero_at_mail.cgo.wave.ca)>
Date: Wed Jun 24 15:36:43 1998

> Date: Wed, 24 Jun 1998 23:38:41 +0100 (BST)
> Reply-to: classiccmp_at_u.washington.edu
> From: ard_at_p850ug1.demon.co.uk (Tony Duell)
> To: "Discussion re-collecting of classic computers" <classiccmp_at_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_at_cgo.wave.ca
Pero, Jason D.
Received on Wed Jun 24 1998 - 15:36:43 BST