ST27C512

[maaxxyy]

Hi guys, i'm trying to read the above eprom ST M27C512 using DIP32-PLCC32 adapter, but read is showing blank. I'm using willem GQ-3X programmer, i also have x-prog and upa. If anyone could give me pointers, i would be really grateful. Thanks

[miha99]

GQ-3X programmer with DIP32-PLCC32 adapter must read this flash, be shure to have a good contact in adapter with flash !!!

[pajo]

probably bad contacts

[PierreTheron]

probably bad contacts
Bad contacts .. Thats correct .. Try to put a 2mm piece off plastic liner underneat the chip or improvise till you get good contact..


My pint of thought.

Cheers Beers

[elchip]

Bad contacts .. Thats correct .. Try to put a 2mm piece off plastic liner underneat the chip or improvise till you get good contact..


My pint of thought.

Cheers Beers
Yes many time PLCC socket is to deep maked as bad copy of original socked and chip go to many down.
You have right 1000%.

Best regard's
:deal:

[Zmann]

Dont know that if there is a SW update for pin configuration for 27Cxxx of PLCC32 package. And this as normally does to many universal programmer for 27Cxxx PLCC32, willem GQ-3X also, needs DIP28-PLCC32 adapter and not DIP32-PLCC32.

[maaxxyy]

Thanks for your comments guys, is everyone sure on the adapter dip28 and not dip32?

[racin-snake]

xprog adapter mate and try giving the contacts on the chip a bit of a clean with a bit of wet or dry or as i use the wifes emery board
make sure its clean
it also helps the soldering back
straight forward with xprog adapter :top:

[maaxxyy]

Heres a pic of the eprom and adapter, but i will look at xprog. :)

[maaxxyy]

Still having trouble with this eprom, i cant see anything on x-prog to read it???

[foxdata]

hi mate
i have plcc32 to dip32 adapter but it not have any component on it
i think your problem in your adapter type

[maaxxyy]

Looks like i need the dip32-dip28 adapter then??

[maaxxyy]

All sorted, just had in the new adapter dip28-plcc32. Thanks for your help guys :)