First, I apologize if this is not the right place for this question.
I built a $20 LCR tester purchased from eBay, and all seems well with the tester. I also just purchased a TL866A in case I needed to recover from incorrect fuse programming of the ATMEGA328P used in the LCR tester.
So, I just received my TL866A, and I downloaded the latest version of SW (6.5) from the web. It installed fine (Windows 10) and did not offer to update the firmware (3.2.72), so that must be current as well.
Weird thing is if I try to read a programmed ATMEGA328P it reads as blank in code and data sections, but it can read the ID and it can read the fuses. I am also able to reprogram at least some of the fuses using the TL866A, and I have been able to read an old 2732 eprom. All the self tests pass.
I read reply #714 in this thread
https://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/msg517065/#msg517065 and it looks like he has the same problem, but no one came forth with any solutions.
Does anyone else have a TL866 that behaves this way? Maybe it is just buggy software, but I would like to know in case I have to return it for refund.
Any info is really appreciated!
Thanks,
Bill