[NTLK] Using a standard PS/2 Keyboard on a MP2100

Andrei Chichak newton at chichak.ca
Fri Feb 12 14:52:23 EST 2010

Microchip has an app note regarding converting a PS/2 keyboard into USB, so you can get that part of the protocol for free. As for the Newton side I can't remember seeing documentation of their protocol (which means very little, I can't quite seem to remember what I had for dinner last night let alone what Apple published 10 years ago).

As for a processor, Microchip makes a few with 2 native serial ports. I wouldn't expect that the programming would be complex, mostly a acquire, parse, lookup, encode, send loop.


On 2010-February-12, at 12:12 PM, Martin Gomez wrote:

> Hi everyone.
> As part of my current work assignment, i'm learning some electronics and a
> lot of PIC programming.
> I think there isn't too complex a task to develop some PS/2 -> Serial board
> with a few components and a small program that emulates a Newton keyboard.
> If my free time somehow expands itself ;) i will see to design and develop
> such a device.
> The schematics and source code will be open source and uploaded to unna, of
> course.
> I will keep you all informed as it nears completion. Any
> ideas/thoughts/whatever, i'm available in and off list :)
> Regards,
> Martín
> -- 
> If debugging is the process of removing bugs, then programming must be the
> process of putting them in.
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