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Re: Keyboard conversion project?
- Subject: Re: Keyboard conversion project?
- From: Patrick Schaefer <PSchaefer@epost.de>
- Date: Tue, 25 Mar 2003 22:00:20 +0100
- Newsgroups: comp.sys.apple2
- Organization: am Notebook
- References: <8avfa.15848$9G.4443585@twister.socal.rr.com>
- Xref: archiver1.google.com comp.sys.apple2:29178
Bryan Villados schrieb:
> I was wondering if anyone ever isolated which part of the PCB is dedicated
> to the ADB circuitry? What I was thinking was cut the PCB so all that's left
> is the ADB controller, then adapt it to the Toshiba laptop keyboard.
This will work, but you may have some keys on the wrong positions
afterwards. To get back to your regular QWERTY layout you have to change
the keyboard map table in the ADB controller according to the key matrix
scheme used by toshiba.
I have a ROM dump of the 341-0124-A controller. If you are familiar with
8048 assembler, you can try to disassemble and modify it. The file is
around 1kb. Re-programmable 8748 or 8749 chips can be obtained from many
suppliers, however, you may have some trouble finding a suitable
programmer.
Patrick