Re: Fairy IC test card software

[Stephen Shaw <xstephenx@apple2.org.za>]

Errr...
I have what I called test cards where I take a digital multimeter, set on the
20000 ohms range and read each pin on a good chip in relation to its positive
power supply pin. When I test chips I use these as a reference. I think Fairy
worked on the same principle. 
Best of luck (and lots of head scratching) to you :-)

On 23 Jul 2001 18:30:20 GMT, Michael J. Mahon wrote:

> Stephen Shaw replied:
>
> Cool!  ;-)
>
> Actually, I was thinking more in the direction of reverse engineering the
> software, to determine how to specify setups and test patterns for chips.
> As long as the data format isn't too weird (?), it should then be possible
> to add new chips and even new kinds of chips to the repertoire.
>
>>Michael, the card has a "potted" area in the middle of it. I had a few non
>>operative Fairy cards so I "sacrificed" one (shades of Mark Cummings! and I
>>don't live in Australia!) by pouring "depotting" compound over the area. It
>>also melted certain components! Back to the drawing board....
>>
>>On 01 Jul 2001 16:01:07 GMT, Michael J. Mahon wrote:
>>
>>> Has anyone reverse-engineered the Fairy IC Tester card software enough
>>> to determine how the IC test data is stored?  I'd like to try extending it
>>> a bit, particularly for RAMs.  (Which the manual says it will test, but I
>>> haven't found out how to specify...)
>
> -michael
>
>  Email:  mjmahon@aol.com

>  Home page:  http://members.aol.com/MJMahon/

-- 
Computer funeral service : Ascii to Ascii, Dos to Dos