Re: DAMS IEEE cartridge for C64

From: Rob Clarke <crock_at_clarke-family.org.uk>
Date: Sun, 27 Mar 2016 14:14:48 +0200
Message-ID: <56F7CEB8.6010904@clarke-family.org.uk>
So it seems as I have yet another ROM version from the two Ruud has. 
This one displays the message "DAMS IEEE V4.4" at startup and strangely, 
the message "PRESS S FOR SIMONS BASIC" if the PIA is not present.

It took considerably longer than planned to fix the cartridge as all the 
IC's were soldered directly to the board so it would fit into the 
housing. I ended up socketing them all and eventually found it was the 
PIA itself which had died, taking one of my 64's with it. :-(

The oddest think about it is that D0-D7 have been reversed to the EPROM, 
which is originally what made me think it was the EPROM at fault as it 
did not look like a valid cartridge image. Whether this was to make the 
board layout easier or some attempt at obfuscation I do not know, but as 
you can read the ROM contents from the 64, it wasn't difficult to 
extract. At some point in the past it has been modified to take a 2732 
instead of a 2532 as well.

Ruud, do your cartridges have D0-D7 flipped as well?

The link below contains a zip with my ROM image and some board photo's.

http://inchocks.co.uk/commodore/DAMS_IEEE/DAMS_IEEE_rob.zip

cheers, Rob

On 25/03/2016 12:19, Ruud@Baltissen.org wrote:
> Hallo Rob,
>
>
>> Does anyone have a) a ROM image for the DAMS IEE cartridge and
>> b) as user manual or instructions?
> As always at your service:
>
>    http://www.baltissen.org/temp/DAMS-IEEE-interface.zip
>
> I have two interfaces, both work, but have different ROMs seen from
> a binary point of view. So I included both ROMs.
>
> The manual says it is meant for bothe the VIC and C64.
>
>
> --
>     
> Kind regards / Met vriendelijke groet, Ruud Baltissen
> www.Baltissen.org
>
>
>
>
>
>


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