Re: CBM 600/700 Diagnostic Cartridge

From: Steve Gray <sjgray_at_rogers.com>
Date: Thu, 22 Nov 2012 08:23:04 -0800 (PST)
Message-ID: <1353601384.15202.YahooMailNeo@web161303.mail.bf1.yahoo.com>
Hi Christian,
 
This is nice. Thanks for posting! 
I'm curious about the cartridge.. Is this an "official" CBM Cartridge, or custom-made? I've never seen an official Commodore CBM-II cartridge. All the ones I've seen are made by Handic.
If so, could you take a few pictures of it (outside and inside) for inclusion on my CBM-II web page? 
 
Thanks!
Steve


>________________________________
> From: Christian Dirks <Toast_r@IdeaLine.info>
>To: cbm-hackers@musoftware.de 
>Sent: Wednesday, November 21, 2012 5:38:04 PM
>Subject: CBM 600/700 Diagnostic Cartridge
>  
>Hi all,
>I was lent a CBM 600/700 diagnostic cartridge by a friend.
>Although he had not all test connectors available, using the trial and error method, I got it to work.
>I documented the test connectors and dumped the EPORM.
>The .bin file and the information on the test connectors can be found at:
>http://www.idealine.info/CBM/CBM_600-700_DIAG.zip
>
>A look at the .bin shows it is mapped at $2000.
>A cycle counter and the results of the runing test cycle are displayed on the screen.
>There is no SID test result diplayed. You should hear three pings and a hiss.
>Unfortunately, commodore did not implement counters for the test results, so if a test fails once, but is OK in the next cycles, the failure will not be noticed unless a bad cycle is observed.
>Maybe someone with better programming skills would like to add test result counters.
>I think it also would be nice to have DRAM testing for banks 0-14, not only 1-4.
>
>
>Christian
>
>-- Christian Dirks
>Toast_r@Idealine.info
>
>
>
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>
>
>   

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Received on 2012-11-22 17:00:15

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