On Mon, Jul 20, 2020 at 12:45 AM <silverdr_at_wfmh.org.pl> wrote: > > > > > On 2020-07-14, at 17:01, Francesco Messineo <francesco.messineo_at_gmail.com> wrote: > > > > I've lost a batch of the soviet PLAs too, and lost some good ones > > while figuring out that the .jed file on zimmers had the NOT and > > direct input fuses swapped (no comment...) > > Did you get any working ones programmed, eventually? not yet. I've reversed the input terms with a program, the checksum ended being the same as the one of the partial jed dump present into pla.txt (it's on the C64 firmware directory on zimmers) so I was confident I did a good job. However even this jed didn't produce a working PLA. Now I'm making a custom hardware reader to see what's wrong in the programmed IC. It seems really odd that noone actually archived a good jedec dump of an original 82S100 (I don't have one, only the 93459PC that's not supported by the Data I/O 2900 unfortunately). FrankReceived on 2020-07-20 10:00:03
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