[Techtoolslist] Can you use a 63C09E CPU in a Fluke 68099000Apod ?

[Colin Davies]

Thanks Guys,

I certainly think its worth a try, however I've found the fault that was 
stopping the CPU running, and it passes the Ram / Rom self test now.  Just 
some other issues to deal with like sprite rams and no sound.  (This is 
Contra / Gryzor)

Yes, 63C09E  'powers up' in 6809E Mode and its pin for pin compatable afaik, 
so this would be interesting to try out.

I'm a little stuck for space at the moment and there is not much room on the 
test bench, I'm hopefully going to be set up in a nice workshop before the 
new year, and will have quite a bit of space to have everything accessable 
(Back Bedrooms / Spare rooms are quite small in the UK) , so once I have 
that sorted, I'll be playing catch up with all the stuff that needs repairs 
and getting to grips with lots of tech tools.

Cheers, Col

----- Original Message ----- 
From: "Clay Cowgill" <c.cowgill at comcast.net>
To: "'Technical Tools Mail List'" <techtoolslist at flippers.com>
Sent: Thursday, August 25, 2011 6:42 PM
Subject: Re: [Techtoolslist] Can you use a 63C09E CPU in a Fluke 
68099000Apod ?



>> Anybody ? - I presume its worth a try, and I've not tried out

>> my pod yet....

>>

>> However, I've just snagged an Abi Boardmaster so I'm going to

>> have a go with that first !!

>

> Wish I knew-- I'd give you an answer, but I'm actually curious myself now!

>

> IIRC, you actually have to give a short instruction sequence to the 63C09 

> to

> switch it to 'enhanced' mode, so I would suspect that it'd work fine for 

> all

> the basic tests from a cold start.  Once you RUN it may or may not act

> differently though.  I don't know if the 9000 series pods rely on clock

> cycle counting, if so, that might be an issue since the clocks required in

> enhanced mode are shorter...

>

> -Clay

>

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