e card from the Mac after putting the image on the SD
was a sign.
- took the # off the flasher line in the uEnv.txt file.
- put the card in. held the user button and powered it up.
- proper sd to eMCC flashing occurred.
- shell achieved.
Thanks again for all the help. Michael B
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I just did:
mmc dev 1
mmc erase 0 0x400
Now reloading SD card that go overwritten. Fingers crossed. :)
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Oh my.
It copied the image on the board over the SD card again.
Holding the button didn't prevent this.
Ah!!! :)
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Very interesting for the last 3 responses.
I am re-downloading the image Robert pointed to. I did try a 2016 image a
week or two ago. It looks like it is maybe copying that image from the
eMMC back to the card as Dennis has mentioned.
I will look at the u-boot reference again and see if I can
For completeness, here is the boot hitting space to get into u-boot console.
U-Boot 2016.03-1-g148e520 (Jun 06 2016 - 11:27:44 -0500), Build:
jenkins-github_Bootloader-Builder-395
Watchdog enabled
I2C: ready
DRAM: 512 MiB
Reset Source: Power-on reset has occurred.
MMC: OMAP SD/MM
Here is the output when:
- SD inserted
- Boot/User button pressed (It looks like it is being ignored)
U-Boot SPL 2016.03-1-g148e520 (Jun 06 2016 - 11:27:44)
Trying to boot from MMC
bad magic
U-Boot 2016.03-1-g148e520 (Jun 06 2016 - 11:27:44 -0500), Build:
jenkins-github_Bootloader-Buil
As of now, it looks like when I power on with the Boot button pressed,
literally nothing happens.
Here is what it looks like with no SD card and I boot the board.
- no boot button pressed
- no sd card inserted
U-Boot SPL 2016.03-1-g148e520 (Jun 06 2016 - 11:27:44)
Trying to boot from MMC
bad
If not it will try to reflash the board.
>
> Jon
>
> On Thursday, October 31, 2019, Michael B > wrote:
>
>> As it stands now I can read the SD and the env file etc.
>>
>> The bbgw won't boot so it does not show the board as a drive on a
>> computer.
&
Rasberry Pi to read the BB uSD.
>
>
> On Thursday, October 31, 2019, Michael B > wrote:
>
>> I know about that. It doesn't work.
>> Not mine for sure at least with this version of OSX and the latest
>> VirtualBox.
>>
>> Thanks again all for hel
the native
> OS does not need to be able to read the filesystem. Also, you could use
> ext4fuse on you Mac to mount a ext filesystem. Or just Bootcamp your Mac
> with Linux. However, all of this is why I no longer use Mac systems.
>
> On Thursday, October 31, 2019, Michael B > wr
e.
I'm not up and running yet but that gives me some more to play with.
On Tuesday, October 29, 2019 at 12:00:32 PM UTC-4, Dennis Bieber wrote:
>
> On Tue, 29 Oct 2019 04:05:01 -0700 (PDT), in
> gmane.comp.hardware.beagleboard.user Michael B
> > wrote:
>
>
> >
isn't updating it. So on my Mac,
the (g)dd command is the only way.
I will be trying to get my hands on a Windows PC tonight and see if I have
better luck with the SD card there.
Thanks all for the help. I know it's going to end up being one simple
thing that I am missing. At l
Another potential path is booting from u-boot to tftp or nfs. h...
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Reading this article to create a uboot on a card.
Does this seem like it's the right path?
Thanks a ton for the advice.
https://github.com/bootlin/training-materials/blob/master/lab-data/common/bootloader/beaglebone-black/README.txt
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It looks like it is trying to flash again.
So I guess I'm back to my question of how to change the auto flash setting
when I can't get access to the setting?.
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U-Boot SPL 2016.03-1-g148e520 (Jun 06 2016 - 11:27:44)
Trying to boot from MMC
bad magic
U-Boot 2016.03-1-g148e520 (Jun 06 2016 - 11:27:44 -0500), Build:
jenkins-github_Bootloader-Builder-395
Watchdog enabled
I2C: ready
DRAM: 512 MiB
Reset Source: Power-on reset has occ
I was able to grab a bit higher up than before.
It looks like it's trying to flash again even though the flash card isn't
inserted.
-
Starting eMMC Flasher from microSD media
Version: [1.20160606: run bb-wl18xx-wlan0 in single user mode...]
---
I flashed this version - unless I messed it up of course:
bone-debian-9.9-iot-armhf-2019-08-03-4gb.img.xz
On Monday, October 28, 2019 at 7:49:04 PM UTC-4, Michael B wrote:
>
> The boot scrolls past and I can't grab it all.
> Using osx in terminal.
>
> If I put the micr
to a file and the file came back empty.
sudo screen /dev/tty.usbserial-FTAP7C79 115200 > session.txt
Any advice on how to capture the boot in screen?
On Monday, October 28, 2019 at 7:23:56 PM UTC-4, RobertCNelson wrote:
>
> On Mon, Oct 28, 2019 at 4:53 PM Michael B > wrote:
&
suggested to make
sure you are on the latest image.
I believe I have done that and re-flashed. Here is the error after
removing the card and booting:
Thanks to all for the help.
Michael B
Error: [/dev/mmcblk1] does not exist
writing to [/dev/mmcblk1] failed...
[ 10.377724] Kernel panic - not
Pardon the newbie question. :)
Will the serial cable allow me to debug a boot up?
I don't have the drive on the bb showing on the computer.
It only stays on for 10 seconds before shutting down.
On Wednesday, October 23, 2019 at 9:02:40 PM UTC-4, Michael B wrote:
>
> oh boy!
>
oh boy!
Thanks for the info. It already shipped. Thankfully it wasn't expensive.
I held the boot button and booted up to see if I could boot off the card -
but oops again, I haven't disabled the flash to emcc yet as I can't get the
drive to show up.
Ah! It's still
pe so I can see what's happening.
Does anyone have any helpful advice on what I can do while waiting for the
Cape?
Thanks so much!
Michael B
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Hi,
I'm currently using the BBB to control a rover robot for a project at my
university. I'm currently having an issue using the UART file /dev/ttyOx to
write an array of characters to a smart servo using c/c++.
More specifically, I've opened the file using
fopen("/dev/ttyO2", "wb")
which shou
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