Re: Fluke 9010a 68000 Pod Eprom Testing on Outrun- help please !!

From: Colin Davies <colin.w.davies_at_btopenworld.com>
Date: Wed Jun 09 2010 - 15:42:47 EDT

I'll look into the checksums... there was a tool to generate ' FLUKE' style
checksums , that I used a couple of years ago on and it worked... I assume
QA has ran them through this algorithm..

I'm 99% sure it's the correct rom revision/s (as its printed on the Label/s)
but I could pull and read in.....

Outrun is not protected (Turbo Outrun is with an encrypted cpu) , but there
is a custom chip that sits on the CPU bus's that handles a few things,
However the address and data bus to the rams and roms come straight from the
CPU....... Maybe I've chosen something tricky to start with ?

I'm just hoping that its noob finger trouble and lack of understanding thats
the isssue here, lol !!

Regards, Colin

----- Original Message -----
From: "Alex Yeckley" <ayeckley@sierralobo.com>
To: "'Technical Tools Mail List'" <techtoolslist@flippers.com>
Sent: Wednesday, June 09, 2010 8:06 PM
Subject: Re: [Techtoolslist] Fluke 9010a 68000 Pod Eprom Testing on Outrun-
help please !!

> >Now these are 64k Roms x 8 bits each...... but I'm unable to run ROM
> >tests
>>here..... It fails on checksum....!!!!!!!!!!
>
> Initial thoughts: Are QuarterArcade's checksum values verified? Different
> ROM rev perhaps? Any copy protection used on OutRun?
>
> Alex
> ----
> ayeckley@elektronforge.com
> www.elektronforge.com
>
>
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Received on Wed Jun 9 15:42:47 2010

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