16F18324 EEPROM verification error with programming

[drolleman]

I've had this before.

Sometimes there is dc grounding issues. Open up the u64 and place a meter between the ground of the u64 chip and the one being programed. This may seem strange because there is a wire between them but it only takes a small current through the ground line to cause this error.

Sometimes there is an ac signal on the ground this can also cause this problem. If you set the scope ch2 to invert, then vert mode to add, and place the ch1 on the ground of the programed chip and the ch2 on the u64 ground you may find the problem. Also check individual grounds, as it may only show during programming.

And if you have a programmer that can power the chip like an icd2 or icd3 and remove all other connections to the target, and try again.

Some things to try.
David

[mvanvliet]

Thanks for your reaction.

This is the e-mail I received from CCS support:

[mvanvliet]

Yesterday I received the new ICD-U64 firmware, CCSload.exe and new devices5.dat file which solved the bug, so probably these updated files will be released with the next revision level.