EEVblog Electronics Community Forum

Products => Test Equipment => Topic started by: dell12345 on June 02, 2015, 12:57:19 am

Title: Minipro Tl866 help trying to read an Eeprom chipset.
Post by: dell12345 on June 02, 2015, 12:57:19 am
I got a Minipro Tl866 programmer and I'm using its software Minipro V6.10 to read an Eeprom s93C56 chip and it read fine but, it's giving me a blank screen.
Title: Re: Minipro Tl866 help trying to read an Eeprom chipset.
Post by: MrAureliusR on June 02, 2015, 04:43:57 am
Hi there!

I've had a MiniPro for a while now, and I've had the same problem with some older EPROMs. Is it a windowed EPROM (ie, UV-erasable)? If so, I've found that sometimes it doesn't read them correctly, and it rarely can generate the necessary voltage to program them.

I haven't used that exact chip before, but if you can provide some more detail I can try and help.
Title: Re: Minipro Tl866 help trying to read an Eeprom chipset.
Post by: wd5gnr on June 02, 2015, 12:38:12 pm
If you have Linux you might try qtl866 (which uses minipro as a back end). See https://github.com/wd5gnr/qtl866 and https://github.com/vdudouyt/minipro

It is likely that if it isn't the actual hardware, that software would work. If it is actually something in the hardware, it is probably going to be bad on both sets of software.
Title: Re: Minipro Tl866 help trying to read an Eeprom chipset.
Post by: dell12345 on June 02, 2015, 12:59:54 pm
I tried it on two separate chips. Both are soldered to the board thought and that might has something to do with it? Between I'm using Window 7 and using a soic clip to read the chip off the board. Maybe I should de-solder the chip from the board and read it that way...
Title: Re: Minipro Tl866 help trying to read an Eeprom chipset.
Post by: wraper on June 02, 2015, 01:18:53 pm
I tried it on two separate chips. Both are soldered to the board thought and that might has something to do with it? Between I'm using Window 7 and using a soic clip to read the chip off the board. Maybe I should de-solder the chip from the board and read it that way...
Don't assume you can easily read IC's soldered to the board.