RE: WTBorrow: Fluke 6809 pod

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I was using the 9010 today and accidentally plugged a 6502 pod into a board
that used a 6800 processor. Hmm, could read and write to RAM, and do a ROM
checksum test, only when I tried to "RUNUUT" did I notice the error. No
risk to the pod as the 6800 and 6502 share the same Vcc and Gnd lines, as
well as Data and Address lines and some of the clock and I/O ports. R/w is
the same for example...I think a 6502/6800/6802/8 multipod may not be so
much trouble after all...anyone have lots of free time?

I was able to get the Series 90 8085 test fixture to become a Z80 unit,
just tidying up the rather messy sketches before I show how it works. Have
the code for that as well...

Anyone have a 6802 pod and have the Pod Eprom stored? I have the 6502 data
if anyone wants it.

John :-#)#

At 08:12 AM 8/9/00, John Robertson wrote:
>The pod has a cpu internally to match the board under test. The
>differences between the 6800 and 6802/6808 are clock and bus request
>signals are different, plus there is an enable on the 6802/8 that is
>missing on the 6800. You might be able to use the 6800 pod to do simple
>tests on the 6802 stuff, but I haven't tried it out, certainly it will not
>harm the pod as the +5 and grnd are all the same. At worst it will simply
>claim that certain control lines are wrong. Perhaps a interface plug could
>be whipped up that goes between the 6800 and the 6802 socket to fake the
>control lines that the 6800 pod needs to see?
>
>John :-#)#
>
>At 08:36 PM 8/8/00, Keith, Brendan wrote:
>>What I meant was just running the bus tests.
>>Does a CPU need to be in the pod for that? I thought
>>that the base and the pod could assert and sense the
>>lines.
>>
>>Brendan Keith
>>brendan.keith@wilcom.com
>>
>> > -----Original Message-----
>> > From: John Robertson [mailto:jrr@flippers.com]
>> > Sent: Tuesday, August 08, 2000 10:33 PM
>> > To: TechToolsList@flippers.com; 'TechToolsList@flippers.com'
>> > Subject: RE: WTBorrow: Fluke 6809 pod
>> >
>> >
>> > Well, if you have a 6800 pod, it might be possible to make it
>> > able to test the 6802/6808's as well.
>>
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>
>
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  John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
  Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
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Received on Wed Aug 09 18:47:29 2000