Re: PET diagnostics

Hi Christian,

i just scanned the "Testing the PET Computer" document that covers how 
it works. You can find it here:

http://www.inchocks.co.uk/commodore/PET/Testing_The_PET_Computer.pdf

The additional test programs referenced in the doc came on a set of 
tapes ( http://www.inchocks.co.uk/commodore/PET/Tapes.jpg ) most of 
which which you can find here: 
http://www.inchocks.co.uk/commodore/PET/ServicePackTapes.zip

Steve, I wrote a PET diagnostic routine which tests the RAM and CRC 
checksums the ROM's which you're welcome to include.

Rob

On 11/12/2013 21:34, Christian Dirks wrote:
> Hi Rob,
> the used ROM set should be basic 1 according to
> http://zimmers.net/anonftp/pub/cbm/firmware/computers/pet/README.also
> I found a youtube video that claims to show 'A successful pass of the
> diagnostic rom': http://www.youtube.com/watch?v=l5E8mpfBbZg
> Unfortunately no further information :(
> Could you take a look at the documentation and dongles ?
>
> Christian
>
> Am 11.12.2013 21:13, schrieb Rob Clarke:
>> Yes, but it was only in the basic 1 ROM set. I have an original set of
>> documentation and dongles somewhere if you can't find it on-line.
>>
>> I don't recall if it displays anything though, I think it used the red
>> LED on the mainboard.
>>
>> Rob
>>
>> On 11/12/2013 21:08, Christian Dirks wrote:
>>> Hi all,
>>> does anyone know, if there really is a diagnostic routine in the PET
>>> ROMs, and if so, what it should do/display ?
>>> When I power up my 2001-8C with the daignostic pin connected to GND, it
>>> blanks the screen and nothing more seems to happen.
>>> A quick test with a 'hello world' basic program works.
>>> The used ROM set is:
>>> 6540-019, -013, -015, -016, -012, -014, -018.
>>>
>>
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>


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