[Techtoolslist] Series 90 & the 6809

[John Robertson]

I generally use the cheapest ones from Digi-Key.

https://www.digikey.ca/product-detail/en/cnc-tech/243-40-1-06/1175-1481-ND/3441577 
(Canadian pricing)

John :-#)#

On 03/24/2016 8:53 AM, William Stillwell wrote:
> John, do you have a preferred part # for the thin leg 40 pin sockets?
>
> William Stillwell
> Hamster / KI4SWY
> Free Play Florida Arcade & Pinball Show Organizer
>
>
> -----Original Message-----
> From: Techtoolslist [mailto:techtoolslist-bounces at flippers.com] On Behalf Of
> John Robertson
> Sent: Thursday, March 24, 2016 11:02 AM
> To: Technical Tools Mail List <techtoolslist at flippers.com>
> Subject: Re: [Techtoolslist] Series 90 & the 6809
>
> On 03/24/2016 7:35 AM, Brent Walker wrote:
>> John,
>>
>> I'd love to have more information/tips/tricks on using these.  I
>> picked up one of the 6809 ones a few months back when somebody was
>> selling 4 or 5 of them on eBay, but haven't used it much.  Definitely
> different from the 9010.
>> I was a bit confused about how it seemed to run the mentioned tests
>> while the board (Joust boardset at the time) seemed to be running, so
>> the cycle stealing info makes sense (and remember reading something to
>> that effect in the doc's, or in the video (available on YouTube).  I
>> also remember getting certain error messages on the display that may
>> well have been related to the lack (?) of the mentioned pull-up
>> resistors on specific pins.  I'll have to pull it out again and give it
> another go at some point.
>> I seem to remember an earlier post (or maybe it was on KLOV) talking
>> about using a socket between the UUT and the 90 to make it easier to
>> use with some UUT configurations, but don't remember the details - ie,
>> install a couple of sockets on the UUT, put the processor into the top
>> socket, and then clip the 90 into place - this may have been a means
>> of getting a pull-up resistor between the uP pin(s) in question and the
> UUT PCB.
>> It would be nice to have a full write-up/guide on using these with
>> arcade/pinball PCB's - there's just not much out there on them, and
>> I'm sure they'd be useful for cases where you just can't get your
>> hands on a
>> 9010/9100 equivalent pod.
>>
>> Brent
> Hi Brent,
>
> Matt Rossiter (thanks Matt!) has archived a lot of useful data on the Series
> 90 here:
>
> http://games.rossiters.com/manuals/Fluke/Fluke%2090/
>
> This includes Quicktools which is a DOS tool that I have never
> tried...probably really handy as you can then interface the 90 to your PC!
>
> You need to have /HALT with a Pullup instead of hard wired to Vcc to be able
> to use the Series 90 6809 pod - if the CPU is in a socket then you can use a
> home-made adapter 40 pin plug/socket where pin 40 (/HALT) is tied to Vcc
> with a pullup resistor (4K7 for example) and then you can clip the 6809 pod
> onto the UUT's 6809. I use two 40 pin IC sockets for this sort of thing, top
> socket is wire-wrap, bottom is a standard solder in 40 pin socket with thin
> legs (to avoid damaging the UUT socket). Cut pin 40 on the wire-wrap a bit
> short and solder in the resistor and jam the resistor into pin 40 on the
> lower socket. Or cut the Vcc connection to pin 40 on the UUT and add the
> pullup permanently to the logic board (preferred method in my mind).
>
> John :-#)#
>>
>>> The 90 series was designed in Canada (Edmonton, Alberta) and worked
>>> fairly well as a clip-over the CPU type of exorcisor. I've got pretty
>>> much the complete set and they can be handy at times, especially if
>>> you don't have the pod for your 9010/9100. I have all the pods so
>>> these basically sit on a shelf.
>>>
>>> These only work with CPUs that can support having their address and
>>> data lines floated when you select a particular CPU pin, AND that pin
>>> MUST have a pullup resistor on the UUT PCB. In some cases that pin
>>> was simply wired to Vcc, and then to able to use the 90 you have to
>>> cut the Vcc trace and add a 10K pullup.
>>>
>>> The 90 works by cycle stealing, it runs when the CPU is on the
>>> opposite cycle. Rather cute in fact - the game can be running and you
>>> can run a RAM, ROM and I/O test at the same time!
>>>
>>> It has a RS-232 port as I recall and if more folks on the list had
>>> these then I probably would have played more with mine and we may
>>> have made some use of it here.
>>>
>>> Perhaps a show of hands of folks with the Z80 or 9809 Series 90?
>>>
>>> If there is interest perhaps I can contact the designer and see if he
>>> is any more interested in sharing info on the unit than he was the
>>> last time I asked about six years ago...what I'd like him to do is
>>> write the story of the 90 series device, and what the heck, I will
>>> try contacting him again in any case. It would be nice to get the story
> out!
>>> John :-#)#
>>>
>>>
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