RE: Please help with Omega Race CPU if you can

From: Mark Shostak <shostak_at_directlink.net>
Date: Wed Aug 29 2001 - 10:48:45 EDT

As mentioned, you can't disbale the wdog on Omega Race,
however, you can instruct the 9000 to ignore it.

IIRC, you press <SETUP>, followed by the <MORE> key.
Keep pressing <MORE> until the error you are seeing (act ln force)
is on the display. Then press <NO>, and make sure the state
changes on the disply. Then run your test again. (and it will stop on
your _next_ problem... :-/ )

-Mark

>Michael Kelley wrote:
><snip>
>> but I'm not sure where to check next. I have a Fluke 9010A
>> with a Z80 pod,
>> and I'm getting "active line force interrupt" errors in the
>> auto or bus test.
>> My Z80 pod is testing fine in self test. I'm not sure what I
>> should be
>> checking next. Board has no corrosion damage. Please help if you can.
>>
>
> The errors in the 9010 are most likely due to the Watchdog circuit.
>If you have a scope handy check the /RESET line (CPU pin 26) and the
>/INT line (CPU pin 16). These lines MUST be at a HIGH logic level for
>the POD to operate. Unfortunately, the Omega Race board does not have
>a handy 'watchdog disable' pad like the Atari boards, you may have
>to lift an IC leg to disable the watchdog.
>
>Dave

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Received on Wed Aug 29 07:51:31 2001

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