programming with TL866

[lionelkjh]

Good morning all! Today, I am in programming, and I am trying to use TL866 programmer and adapter (PLCC44 / DIP40) to retrieve the program from the integrated circuit: EE87C511 (PLCC44), to put it in: AT89C51LR (PLLC44) , and the programmer software tells me: overload or short circuit every time I try programming !? (the circuit is however completely new and has not been soldered, and I have respected the meaning with the point on the adapter). Reading from EE87C511 works well, and so does AT89C51LR. My question is therefore the following: is the correspondence between the 2 circuits good?

[coromonadalix]

is your test socket came with the tl866  or its made for another programmer ??  some tests socket are universals and some are not,  some tl866 have an eeprom on the tests socket to tell the tl866 software you're using are the genuines one for it


cpu orientation in the socket ?
Bad insertions ?
for a 44 pins plcc socket, you have to put the test socket at the right place in the tl866 ??

Normally this error mean the test socket doesn't have the needed pinout to test the ic put in it  hence the overload error,  something gives a short in the programmer 

You have here  a huge thread for the tl866   a search will help you find it.
https://www.eevblog.com/forum/blog/eevblog-411-minipro-tl866-universal-programmer-review/

[DeepLink]

The PLCC44 socket's for 27Cxxxx EPROM's and for 80C51 does not have the same pinout

You need a PLCC 44 socket specific for 80C51

See these (pinouts a bit down on the pages)
http://www.mqp.com/ad44.htm
http://www.mqp.com/ad45.htm

[lionelkjh]

Hello, and thank you for this info. To do even better, I am going to take a new 87C51 and program it, I am sure I have no more error messages in both reading and writing! Cdt