I have inherited responsibility for a bunch of 3rd-party direct clones of a Beaglebone Black C5 (only known change is in silkscreening).
Since none of these have any contents written to the onboard EEPROM, they fail to boot with "CCCCC" written to the serial console with no uSD card, and > U-Boot SPL 2015.01-00001-gb2412df (Jan 29 2015 - 15:01:06) > Incorrect magic number (0xffffffff) in EEPROM > Could not get board ID. > Incorrect magic number (0xffffffff) in EEPROM > Could not get board ID. > Unknown board, cannot configure pinmux.### ERROR ### Please RESET the > board ### ...written to the console when I try to boot it from a uSD cards with a stock BBB image (the 2015-03-01 Debian 7.8 image). So clearly I need to get some good contents into the EEPROM. I've been trying to hunt down instructions for how to access the U-Boot prompt to manually write the EEPROM via the i2c bus, but haven't hit any luck there. Robert Nelson's posted links in the past to what he's described as the "factory images for flashing boards with blank EEPROMs", but those links (to rcn-ee.org) are stale/dead or behind apparently access-controlled folders on his server. Could anyone provide a good set of instructions for getting access to a uBoot prompt from a stock flasher image OR provide current links to the blank-EEPROM manufacturing images (or equivalents) that RCN's referenced? -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
