Hmm. I didn't think about the Z80 speed issue. I'll have to try that.
By the way, since we're on the topic of fixing Omega Race - What do you
normally do when you run across a bad 8216 Data Buffer? Do you try to
replace them with a 74LS245? Fortunately, I haven't run across this
problem yet, but I'm sure it'll come up.
Matt
On Mon, 22 Jan 2007, John Robertson wrote:
> At 12:36 AM -0800 1/22/07, Matt Rossiter wrote:
>> This might be more of a Vectorlist question, but I thought I might try
>> here.
>>
>> Right now I'm using a 100% working Omega Race boardset to make sure I have
>> the correct setup using the Fluke 9010a and Z80 Pod.
>>
>> First of all, the boardset just won't run with the Z80 Pod. I can see
>> that the Reset line is pulsing. It won't run if I disable the watchdog
>> circuit either. *sometimes* I can get it to do a Quick Ram Test
>> successfully. Other times I get data error messages and if I do a bus
>> test it will report a bunch of data lines tied together. Of course, if I
>> put a normal z80 processor back in the game works perfectly fine.
>>
>> So, I'm just wondering if anyone out there knows how to properly setup an
>> Omega Race boardset for troubleshooting with the Fluke 9010a and Z80 pod.
>> This Pod should be working fine since I used it recently on a Pac-Man.
>>
>> thanks
>>
>> Matt
>
> This board requires a Z80A CPU, perhaps your Z80 pod CPU is too slow?
> Try installing a Z80A in the pod (I run a Z80B)...
>
> I do know that with pin 8 of RP4 cut and the board side tied high,
> that I can run the RAM, ROM and I/O tests successfully on an OR that
> is STILL on my bench. Flacky problems were caused by a bad ground
> connection to a buffer.
>
> John :-#)#
>
> --
> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
> www.flippers.com
> "Old pinballers never die, they just flip out"
> _______________________________________________
> Techtoolslist mailing list
> Techtoolslist@flippers.com
> http://seven.pairlist.net/mailman/listinfo/techtoolslist
>
_______________________________________________
Techtoolslist mailing list
Techtoolslist@flippers.com
http://seven.pairlist.net/mailman/listinfo/techtoolslist
Received on Tue Jan 23 14:07:25 2007
This archive was generated by hypermail 2.1.8 : Fri Jan 26 2007 - 19:50:01 EST