Hi Gremlin and thanks for your help.

The adapter was supplied with the XGecu T48 box. But it doesn't appear to be compatible with TMS27C210.
The adapter PLCC44 -> DIP40 provided is for MCS51 (it's not wired in the same way).

So I connected pins 12 and 13 together, and 33 and 34 together (pins 13 and 33 being set to GND on the adapter and being NC on the TMS27C210).

but I can either try with TMS27C210 PLCC44 or DIP40, I have the same error of "pins 10 and 18 not connected".

With the chip on the adapter, I checked the continuity between the pins on the chip and the pins on the DIP40, they are all good.

So either my 2 chips are defective and have the same fault, or it is the XGecu T48 which is defective.
I unsoldered the chips from ECU, they could have been affected by the heat ?

Hi,

I have a problem : I can't write on the M28F102 eprom :


The M28F102 is not available in the list, so I have selected 27C1024 (the m28F102 chip replaces the 27C1024 from what I was told).

The chip is well installed on the adapter :


So what's wrong ?

Thanks again for your help, Gremlin.
I couldn't find this information in the product description.