Workflow

Attempt to initialize the EEPROM emulator service, storing the error code from the initialization function into a temporary variable.

enum status_code error_code = eeprom_emulator_init();

Check if the emulator failed to initialize due to the device fuses not being configured to reserve enough of the main FLASH memory rows for emulated EEPROM usage - abort if the fuses are mis-configured.

if (error_code == STATUS_ERR_NO_MEMORY) {
    while (true) {
        /* No EEPROM section has been set in the device's fuses */
    }
}

Check if the emulator service failed to initialize for any other reason; if so assume the emulator physical memory is unformatted or corrupt and erase/re-try initialization.

else if (error_code != STATUS_OK) {
    /* Erase the emulated EEPROM memory (assume it is unformatted or
     * irrecoverably corrupt) */
    eeprom_emulator_erase_memory();
    eeprom_emulator_init();
}

Config BOD to give an early warning, so that we could prevent data loss.

configure_bod();