I am having a simlar issue with my custom board based off the BBB. I think
the issue is with using MMC1 the TRM for the am335x hints that the ROM uses
Raw Mode therefore i believe it will jump to some sectors before your
partion which starts at 2048... I was able to get MLO to start but i had
Well - I have done all the above and even done a dd=/dev/zero
of=/dev/mmcblk1 bs=1M to erase the whole emmc.
None of these steps help in booting only from SD automatically, so I shall
assume this is a HW issue and create an RMA...
Thanks, Martin
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The symptoms you describe seem to suggest that the TI ROM bootstrap is
somehow hanging while trying to load MLO from the eMMC. If it managed to
successfully run MLO you should see some console output, while if the boot
from the eMMC failed cleanly (i.e. didn't work but didn't hang) it would
mo
Any ideas how to solve this issue?
Pressing the Boot button every time I am booting the board is not very
helpful in an embedded application...
Martin
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"Beag
I reran the flashing, but this time before disconnecting power I ran:
dd if=/dev/mmcblk1 of=/dev/sda bs=1M
to create a 1:1 copy of the files installed to eMMC on a 2G SD card.
Again the boot rom eMMC fails, but if I add the SD card and boot from it -
uboot and later the OS comes up all right...
On Saturday, January 18, 2014 8:06:23 AM UTC+1, Wulf Man wrote:
>
> you cannot use USB power while flashing the board. you MUST use a
> supply plugged into the barrel connector
>
Well - the last time I had flashed it before it worked with USB power from
an USB Power supply.
I have now done t
you cannot use USB power while flashing the board. you MUST use a
supply plugged into the barrel connector
On 1/17/2014 3:13 PM, Martin Sperl wrote:
>
> On Friday, January 17, 2014 7:38:47 PM UTC+1, RobertCNelson wrote:
>
>
> Really "none" ?...
>
> Umm, how are you flashing it?
>
> A
On Friday, January 17, 2014 7:38:47 PM UTC+1, RobertCNelson wrote:
>
>
> Really "none" ?...
>
> Umm, how are you flashing it?
>
> ALL capes removed, NO USB, (ethernet can be plugged in), a real 5 volt
> DC power (2amps)..
>
>
No Capes, No Ethernet, Only Serial Console and 5V 2A USB Charger.
On Fri, Jan 17, 2014 at 12:36 PM, Martin Sperl
wrote:
> Thing is that I have tried the default Angstrom and other images as well -
> even those that flash the eMMC from SD automatically via emmc.sh.
> None have been successfull - that is why I have taken the image that is
> supposedly also able to
Thing is that I have tried the default Angstrom and other images as well -
even those that flash the eMMC from SD automatically via emmc.sh.
None have been successfull - that is why I have taken the image that is
supposedly also able to get installed directly to eMMC.
I will now give the image o
Here to show that the content inside the first partition are identical:
root@debian-armhf:~# mount /dev/mmcblk1p1 /mnt
root@debian-armhf:~# md5sum /mnt/*
edcfd600554d044f4fab684ab1afd105 /mnt/MLO
c8dcb2985802b00b5c6f1979e58836aa /mnt/u-boot.img
2ae0ff2eae5713b88f6a1f30aaebd4d7 /mnt/uEnv.txt
ro
> maybe I miss something about how to flash the MLO - so far I have always
> assumed that the MLO sits in the first partition of the emmc and SD card
> which gets loaded and executed and which takes the next steps...
Well the "correct" way to just flash the MLO is on a fresh drive is:
http://eewi
On Friday, January 17, 2014 6:59:44 PM UTC+1, RobertCNelson wrote:
>
>
> The "CC" show you incorrectly flashed the bootloader (MLO) onto the eMMC..
>
>
maybe I miss something about how to flash the MLO - so far I have always
assumed that the MLO sits in the first partition of the emmc and SD ca
On Fri, Jan 17, 2014 at 11:56 AM, Martin Sperl
wrote:
>
>
> On Friday, January 17, 2014 6:47:22 PM UTC+1, RobertCNelson wrote:
>>
>> Grab a usb-serial adapter, you question can usually be answered in one
>> boot..
>>
>>
>
> I have been running _everything_ off the serial since the beginning of th
On Friday, January 17, 2014 6:47:22 PM UTC+1, RobertCNelson wrote:
>
> Grab a usb-serial adapter, you question can usually be answered in one
> boot..
>
>
>
I have been running _everything_ off the serial since the beginning of
this thread.
the Serial shows nothing what so ever if I do not p
On Fri, Jan 17, 2014 at 11:43 AM, Martin Sperl
wrote:
> Hi!
>
> OK - I have now taken the minimal image of Debian from:
> http://www.armhf.com/index.php/boards/beaglebone-black/
>
> And I have copied it to the emmc as well as to an SD card.
>
> Again the same observation: the image boots from SD,
Hi!
OK - I have now taken the minimal image of Debian from:
http://www.armhf.com/index.php/boards/beaglebone-black/
And I have copied it to the emmc as well as to an SD card.
Again the same observation: the image boots from SD, but nothing happens on
the eMMC.
Checksums of the boot partitions
Nothing - everything is fine!
Actually (as posted) the partitions have the SAME checksum (the one of the
SD that boots, and the one on the eMMC which does not) - that said: being a
"dd" copy they should be identical...
So it seems to me as if there is an issue with some sort of pre-boot loader
I had an issue like this recently, my uEnv.txt file kept getting corrupted
for some reason. Put the SD in your desktop and check it out.
On Monday, January 13, 2014 7:11:08 AM UTC-6, Martin Sperl wrote:
>
> Hi!
>
> A few weeks ago I had debian installed on my BeagleBoneBlack, booting from
> emm
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