Re: ROM Dump of Amiga Keyboard controller

From: Kajtár Zsolt <>
Date: Sat, 05 Jul 2014 16:52:29 +0100
Message-ID: <>
Hash: SHA1

> On 7/4/2014 7:37 PM, Martin Hoffmann-Vetter wrote:
>> Hello Jim,
>>> And, I found that I had accidentally turned on JTAG on this AVR via 
>>> the fuse settings, and so the incorrect opcodes were being sent. 
>>> Fixed, and...
>> Congratulation!
>> Which version of mc did you have used? There are two known version with
>> part number 325340-01 and 325340-03.
>> Martin
>> Message was sent through the cbm-hackers mailing list
> -01
> but, I found an -03 in another 1520 here:
> Some pages are different:

I've made sources for both versions for easy comparison what was changed:

There were some IEC bugs (timing and responding to channels >=8), pen didn't
move far enough on change request and the steppers were not that fast as
expected. Rest seems to be optimizations.

I'm not sure, maybe someone asked when the LED blinks. It's an indication
that the pen reference position was not reach.

Here are the listing files (as there are no the address comments in the
source anymore):

- -- 
Version: GnuPG v1


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Received on 2014-07-05 16:00:02

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