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Had someone wanted to make business out of it they would have bought one adapter from elnec and would have copied it. Or vice versa, if they wasted ridiculous amont of money to buy one adapter, they would have probably sold some copies to cover what they had spent for the original adapter. I see no point in commercial secrets for an adapter for no longer produced 2708 EPROMs which on top of that are not implemented in commercial new devices. It is just the elnec greedeness that lately increases exponentially with beeprog2's adapters which I am sure will be punished one day Not to mention there are not so many elnec programmers among vintage computer enthusiasts.

Nechal som sa "ukecať" a dal vyrobiť 5 sád DPS pre programovací adaptér 2708 module pre Elnec programátory (BeeHive208S, BeeHive204, BeeProg2, SmartProg2, MEMprog2).
Pojal som to nakoniec tak, že som nakúpil aj všetky súčiastky a je to teda komplet stavebnica.

2 kusy sú už zadané a zostávajú 3 kusy.
Prví traja, ktorí mi napíšu súkromnú správu, stavebnicu získajú.

Odosielam iba cez Zásielkovňu a to tak, že si sami vytvoríte zásielku a pošlete mi kód zásielky.

Cena: 18 EUR (~450 CZK)

Zaplatiť môžete na účet bánk Slovenská sporiteľňa alebo Tatra banka alebo PayPal. Detaily v súkromnej správe po dohode.

Ak nesúhlasíte s danými podmienkami, nepíšte mi!
Táto "akcia" sa už nebude opakovať!

_________________
https://pmd85.borik.net - PMD 85 Emulátor, PMD 85, PMD 32-SD
https://pp01.borik.net - PP 01 Emulátor, PP 01, SD-ROM Modul

PM sent.

Just received a reply from rombor, all his modules sold out, the offer is not valid, if it ever had been.

It was valid I have one piece on the way.

Well, still have to live with 008 published in this topic with pg4uw 2.74 only in LPT SPP mode (this must be expliicitly selected when pg4uw detects the programmer, NOT in the BIOS Setup), diodes must not be Schottky as published because that overloads the step-up converter, and one resistor on the schematic had to had a different value, the 12V mains adapter is from Huawei router :

And I forgot, the U5 78L12 was omitted - not needed whan a stabalized 12V Huawei adapter is used.
A jumper between VCC and collector of T3 (/WE) allows reading of TMS2716 in two halves as 2708. When jumper installed the second half is read. The programming algo of TMS2716 is like on 2708 and modification of 008 for programming of TMS2716 in to halves is very possible but I haven't needed this so far.