Re: PET diagnostics

From: MikeS <dm561_at_torfree.net>
Date: Thu, 12 Dec 2013 02:39:09 -0400
Message-ID: <35EBAB2EECE341D883817315A7F29539@evo310d4>
Hi Rob,

I wouldn't mind a copy of that routine to add to my toolbox; as Philip says, 
there are a couple of others out there, for both CRTC and non-CRTC models, 
but I haven't seen one that calculates checksums.

I calculated all the checksums a while back, but I suppose they're already 
out there somewhere.

m

----- Original Message ----- 
From: "Rob Clarke" <crock@clarke-family.org.uk>
To: <cbm-hackers@musoftware.de>
Sent: Wednesday, December 11, 2013 7:10 PM
Subject: 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.
>>>>
>>>
>>>        Message was sent through the cbm-hackers mailing list
>>
>
>
>       Message was sent through the cbm-hackers mailing list 


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Received on 2013-12-12 08:01:29

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