Re: Blank CMS SCSI Card PCBs

[noone@nowhere.net]

1k + 2k + 32k = 35k, or 35,840 different combinations or formula's. 
That'd be a pretty big circuit if done discretely.  :)  Hopefully you
are better at boolean than I was and can reduce the circuits once the
truth table is known.

Good luck,
Ed

Hey, I just had a thought, why not post the inputs vs outputs and see
what sort of replacement logic we can come up with?  I'll look at the
raw data and can try to reduce it down.  It >might< be fun to flex those
long dormant brain cells I used in electronics school.

To automate the process you could set up your Apple II with two buffer
chips and have the computer run through the test with a simple counting
loop, reading the value at the output after a counter supplies the
inputs.

Ow, I think some of those logic chips are still embedded in my brain...

David Wilson wrote:
> So, provided none of the pins are bi-directional all I have to do is step through the 2^10 (2^11 and 2^15 respectively) possible inputs and record the outputs. Then I look for patterns and derive the equations.