Freeware or Cheap JEDEC Compiler for PAL16L8/20L8 or GAL16V8/20L8?

[Chris56000]

Hi!

I am investigating a General Radio 1689 Digibridge for a Vintage Radio Forum Member, who thinks one or more of the programmed devices may have failed in it!

Very fortunately, I got the EPROM dump from k04BB, and the circuit diagrams from another EEV Blog Forum Member have the product–terms for each pin of the PAL16L8 and 20L8 printed on one of the sheets along with their schematic representations, so all I need is a JEDEC Compiler that I can enter the product terms into for each pin – the contents for the two Sine Generator PROMs (74S571s!) are given on the circuit diagrams as well !

Can anyone recommend a free or cheap JEDEC compiler I can use please? – Will "Flowcode" do it?

Chris Williams

[DavidAlfa]

Maybe?
https://hackaday.com/2021/04/15/programming-pals-in-2021/

[DLJ]

Chris,
WinCupl as pointed at by DavidAlfa is a usefull (FREE) compiler, I find it works better under XP than Win-10.
You will also need a suitable device programmer.
You should be able to test the PALs fairly easily on a solderless bread board with some LEDS and resistors, see the youtube that DavidAlfa linked to.

Good luck.
David

[PCB.Wiz]

WinCUPL works fine here on Win11, in command line mode.
WinCUPL can also run simulation vectors and append to the Jed file for testing, tho the challenge is finding a low cost programmer that can actually  run test vectors.
EETools Chipmax / Topmax pgm many SPLD/CPLD, and support vector testing, work, but they are mid priced.
 
The XGecu T56 looks promising, it can pgm many PLDs, and it has CMOS logic testing, but (currently) lacks the SW upgrade to read JEDEC test vectors.

For hobbyist use, there is this SPLD programmer project
https://github.com/ole00/afterburner
No vector test support, (does not connect MCU to all PLD pins) but otherwise appears active and supported.