BBB boot failure, Could not probe the EEPROM; something fundamentally wrong on the I2C bus.

Background: I have a BBB that I am setting up to run with machinekit to drive a mill.
I have been testing with an early machine kit image, and then I updated to the most recent image.
Upon updating I started to have problems where the cape manager stopped working and the pru was not recognized.

Ok, to narrow down the cause I reloaded the original (possibly updated?) emmc image and reflashed it to the BBB.
(BBB-eMMC-flasher-2013.09.04.img )

Now the board will not boot to Angstrom. The serial console log of the boot attempt is attached.
The key part seems to be:

U-Boot SPL 2013.04-dirty (Jul 10 2013 - 14:02:53)
timed out in wait_for_pin: I2C_STAT=0
Could not probe the EEPROM; something fundamentally wrong on the I2C bus.
Could not get board ID.
Unknown board, assuming Beaglebone LT/Black.musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)

Is there a way to determine if this is a hardware error with the I2C bus, or an EEPROM that needs to be reloaded?

No capes


Dan G.

CoolTerm Capture 2014-08-13 16-42-33.txt (5.05 KB)

EEPROM is write protected. So, it should not have been corrupted unless you were messing with that.

It is possible that it could have died, but it is not something I have ever seen. I suggest that you take it to factory condition and flash it with production version of the SW. If the issue is still there, then the RMA would be the route to go.


Hi Gerald,
Thank you for the reply.
I have done nothing to mess with the hardware or the EEPROM.
All I have done it loaded machinekit from a sd card.
I have, as you suggested, reflashed it with the factory SW.
It was in factory condition for the console log output I posted.
I will do a RMA on the board.

Thank you

Dan G