Date   : Tue, 31 Jul 2012 20:30:13 +0100
From   : jumbos.bazzar@... (Mark Haysman)
Subject: Keyboards.

Most of the ones I've seen are either MASK programmable, or blank with an 
external EPROM. The EPROM version is obviously easily readable, and the MASK 
versions don't seem to be secured either, so you could set one of the MASK 
version to run from external code in the usual way - probably!

Mark.

-----Original Message----- 
From: nicola giacobbe
Sent: Tuesday, July 31, 2012 7:42 PM
To: bbc-micro@... ; Mark Haysman
Subject: Re: [BBC-Micro] Keyboards.

Excuse me, does it means that the processor embedded on the Arc keyboards is 
a reprogrammable one? Or that there is some way to have it execute external 
code?

On Tue, 31 Jul 2012 20:05:13 +0200, Mark Haysman 
<jumbos.bazzar@...> wrote:

> The Arc keyboard uses various Intel x51 type Microcontrollers to process 
> the keyboard functionality. I?ve got a dump of this code if you want to 
> use it to create something else ? it shouldn?t be too difficult to rewrite 
> the output section to be PS/2 compatible rather than Acorn proprietary, or 
> maybe even recode it to PIC/AVR etc if you prefer those.
>
> Mark.