This:
Code:
DATA @0,"12345"
DATA @6,"54321"
produces this when the EEPROM is read back
31 32 33 34 35 00 35 34 33 32 31 00 FF FF

Is that what you want?

Did you find out what went bad with the SD card module? You can always use the SD card socket without all the other stuff on the module, it is easy if the MCU is running ~3 volts.