How to Write an Image to the eMMC Module Tutorial
#45
Hi,

I'm having trouble following this tutorial but I'm not sure whether the eMMC module I have is working at all.
There is no problem interrupting the boot with the serial console (CP2102 at 1.5M baud). I can then remove the jumper but even if I do, the booted OS does NOT see the eMMC device in fdisk -l output.

Relevant output from my serial console:


Code:
Hit any key to stop autoboot:  0
=> boot
Card did not respond to voltage select!
mmc_init: -95, time 12
MMC Device 0 not found
no mmc device at slot 0
switch to partitions #0, OK
mmc1 is current device
Scanning mmc 1:6...
Found /extlinux/extlinux.conf
Retrieving file: /extlinux/extlinux.conf


So it seems that it does not see the eMMC device 0 and afterwards in Linux I only get /dev/mmc0 which is the SD card.

I also tried booting without any jumper, which should give the (uninitialized) eMMC priority, but even then my Rock64 boots from the SD card.

Any clue or should I try an RMA ?

Regards,

Fritti


Messages In This Thread
RE: How to Write an Image to the eMMC Module Tutorial - by Fritti - 10-21-2017, 09:09 AM

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