Help identifying a keyboard?
classiccmp at philpem.me.uk
Mon Sep 17 00:32:35 CDT 2007
> But I don't have the keyboard or even a Datasheet on a keyboard
> encoder chip. Offhand I guess that is TTL serial at some fixed
> buad rate.
Ah. Well, in that case, I'd trace the matrix out and build up a circuit for
it, then figure out where on the 40-pin socket it leads and build up an
adapter to fit a microcontroller (probably an 8051 - that's probably what the
board was designed for, or its close relative the 8048) in there. After that
I'd cook up some keyboard scanning code and have a play.
It's a fair bit of work though...
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