Re: pet 2001 repair

From: Francesco Messineo <francesco.messineo_at_gmail.com>
Date: Sat, 6 Jan 2018 18:56:17 +0100
Message-ID: <CAESs-_yqEuE0tP2ZniDYENFH96_5LszrXzXbWE+uodrZ0q=0Xw@mail.gmail.com>
Hi Christian,
I plan to use your test once my 6540 adapter PCB come back from the
manufacturer (end of the month if I'm lucky). In the meantime I could
succeed in reading the 6540 with my MCU setup.
I know you test used up all the available ROM space, but it would be
good to also test the video RAM, since what you see on the screen and
what the 6502 can read back take different paths. Maybe if you can
share the source code of your test, I can try to squeeze something
there for vram.

Best regards
Frank

On Sat, Jan 6, 2018 at 6:50 PM, vossi <vossi@ceffy.de> wrote:
> Hi,
> I had  similar illegal quantity errors with a bad basic rom in my 3016.
> You can check your roms and rams inside pet with my 2001test.
> This works in 2001 and 30xx machines:
> http://lc64.blogspot.de/2016/10/pet-2001test-for-65406550.html
> This is a continous test - but it checks only a pair of 6560 together!
>
> Christian
>
>
>
> --
> Sent from: http://cbm-hackers.2304266.n4.nabble.com/
>
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Received on 2018-01-06 18:02:28

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