Firmware Update EEPROM questions

jacksonaarond

After studying the upgrade process, I have managed to compile the latest version of Repetier firmware and I am ready to upload it to my Melzi board and give it a try. Before I uploaded, I took a look at the Arduino build directory and saw Repetier.ino.eep, which I assume is the eeprom file. However, the only thing in that file is

:00000001FF

I get the same Repetier.ino.eep file if EEPROM_MODE is set to 1 or 2. Is this correct? I would have expected an eeprom file with all of the default values.

Also, being paranoid, I made a backup of what is on the AVR using the following:

avrdude -pm1284p -c usbasp -P usb -U eeprom:r:P802Eeeprom.hex:i
avrdude -pm1284p -c usbasp -P usb -U flash:r:P802Eflash.hex:i

Is that sufficient to be able to restore in the event of any issues?

Repetier

Firmware uses mode and checksum to detect if eeprom is good, if not it is initialized with values from configuration.h - you never use eeprom upload anyway.

EEPROM backup should be 4KB or more depending on how much the processor has. Flash back nearly 128kb (minus bootloader I guess). If that matches I guess backup was ok. Never used it so not familiar with the commands required.