Yes, there must be people who sell old computers.Thanks, I will try this, but this needes some time. It is strange, because other Circuits like PIC can be read an programed without any problems.. But I caln try to find an XP PC with built-in LPT?
Bye, Mario
Nope, i already tested and don't work, only with LPT port on motherboard workingHello,
Would a lpt port on a card work?
https://www.amazon.nl/Parallel-Printer-Adapter-Expansion-Windows/dp/B08D7N5QQ5
Bertus
The TSOP40 adapter needs to be in the ZIF socket to connect the other 32 pins.I also tried the 8-Pin-Flat-Cable.. same result..
Here is mine, looks like the same ones.ok, I use an Pc with integrated( on board LPT1). same result. verify alway fails and checksum is also different each time, I read the Chip. Strange. I attach two Pictures, with one of my Willem HW, I use. The 2nd one has same problem.View attachment 335421View attachment 335421

I can't help you more, sorry.for the AM29W800 they were inicated by the program lightly different