I then ran a Read test and it passed comparing to the buffer. The 40Pro programmed and verified it in about 3 seconds. Just to try it out, I grabbed Daryl's JEDEC file for his DEC-1 decoder chip. I just upgraded the MemPro to the 40Pro universal programmer and got some Atmel ATF22V10C chips in. I've written a few chips hundreds of times each with no issues to date. It's been flawless and writes a full AT28HC256 in about 8 seconds with verify.
After much searching about, I ended up with a Dataman MemPro. I decided to get a good memory programmer mainly to eliminate another HW design and additional coding (the EEPROM code already written will end up in a SBC board for updating the EEPROM as a utility). It works fine, but it's a concoction of old/new hardware cobbled together with multiple steps to get the code to the Vic for writing to the EEPROM. Atmel seem to have a large selection of this stuff and most distributors stock a large inventory of their products.Īfter writing some 65C02 code to write their EEPROMs using an old Vic-20. I too have just got interested in some GAL type programmable logic for the simplest of tasks, memory and I/O decoding to replace a few logic chips. So has any of you any experience with the Wellon VP-290 programmer and especially together with GALs and/or the Kanda company? They even sell a PLD Logic Training Kit specifically supporting the ATMELs PLDs.
the GALBLASTER an open source programmer, does not support Lattice 22V10D<-the D is important), I stepped over Kanda selling a Wellon VP-290 programmer for a reasonable price (it says 120 Euros, adding shipping and tax this would still fit in my "budget"). I have read much about problems with programmers or GALs/PLDs that do not cooperate (especially ATMELs ATF series) or GALs that are still available from some vendors but not supported (e.g. Unfortunately my old DOS based programmer (a ALL-01) and soon afterwards the old DOS computer (it had to be a really slow computer with ISA slots else the software would not run) died. Especially in 6502 based computers where you just wan't to replace a handful of 74xxxx with a simple 16V8 or 22V10 to make your design small and more flexible.
And so I think are GALs and PLDs, they are fun to use, are available in DIP Package, 5V compatible and easy to use. But hey, a 6502 is even older and as it was already said on this forum, why use a 6502 as a base of computers, because it is fun. I know GALs or PLDs are really old fashion.
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