Hi
It may be a dumb question but:
When writing a hex file to EEPROM you can write unused cells as 00 or FF. What effect what I should choose?

Thanks

 

You leave the cells in the erased state which is usually FF.

 

I would say it has no effect; unless you read or re-direct the program counter to the unused cells.

In any case; isn't the hex program file written in the FLASH memory, and the data in the EEPROM?

 

In any case; isn't the hex program file written in the FLASH memory, and the data in the EEPROM?

A single hex file can write to both program and data memory. I've define the data in the EEPROM inside the same dot C file as my project.

 

You can also leave them alone and do nothing with them. Who says you have to write anything to the unused cells?

 

Agreed. Your linker/loader/programmer ought to leave unreferenced cells alone.