Re: AT Keyboard on XT motherboard (Using an 8031?)

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Article #349

#349

From: Bill Boulton
Date: Thu, 14 Jan 1999 00:00

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I think your only hope is to find an old keyboard with the XT-AT
switch underneath. To my knowledge, the signals are the same
electrically but the protocol is definitely different. You might try
this url for info on keyboard interfacing:

http://www.senet.com.au/~cpeacock/index.html

Have you thought it might be cheaper to put in an AT motherboard?

On 13 Jan 1999 22:08:43 GMT, "Ray Payne" <ray@pcrepairs.com> wrote:

>I was wondering if anyone has any information that would be able to help me
>out.  For a project, I need to convert an AT keyboard to run on a standard
>XT.  (Only because I can't find a reliable source for XT keyboards cheap.)
>I was thinking of writing an Assembly program to use an 8031 (Just because
>the chip is only a couple of dollars) to do the conversion, but would prefer
>to find something less time intensive.  If anyone would have plans for the
>circuitry and the code to run it, I would be open to other methods of
>converting the signals.  It is not an actual XT I need the keyboard for, but
>an 80188 system that requires the older keyboard.
>
>Thanks in advance for the assistance,
>
>Ray Payne
>payne@globalserve.net
>
>

Bill
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From: bill_boulton@junk.winshop.com.au (Bill Boulton)
Subject: Re: AT Keyboard on XT motherboard (Using an 8031?)
Date: 1999/01/14
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