[Elphel-support] Building firmware

[Richard Rigby]

Hi Oleg,

I first tried coping files to root partition on another PC, then when that
didn't work I tried to boot camera off SD card and copy files over using
ssh. That also didn't work.

I must have build master, I will try rocko branch next.

Thank you for your support.

Kind regards,

*Richard Rigby*
Software Developer


www.redzone.com

 Ph: +64 9 479 9901

Fax: +64 9 479 9904


13 Tarndale Grove • Albany • Auckland 0632 • New Zealand

On 22 March 2018 at 12:56, Oleg <support-list at support.elphel.com> wrote:

> Hi,
>
> I have trying to build the firmware and flash the camera however I have
>> not been successful. I build the firmware on my machine and the used the
>> web interface to upload the new firmware to the camera, however this
>> bricked the camera. Do you have any advice about why this may have happened?
>>
>
>    - Did you build master (= jethro) or rocko branch?  git clone -b rocko
>    https://git.elphel.com/Elphel/elphel393.git
>    <https://git.elphel.com/Elphel/elphel393.git>?
>    - I'm working with the kernel in rocko plus some application projects
>    are on their master branches. Can break things from time to time but I
>    recommend to build the rocko branch for the main project.
>    - If you have a serial port up you should see at least some output
>    from u-boot and kernel.
>    - First try putting your built files on the recovery SD card and boot
>    from it -
>
> In elphel393/tools/elphel-tools-update/ there's a write_bootable_mmc.py -
> if you used it to write the card then copy it to elphel393/bootable-images/mmc/
> and run it.
> If it boots and works - then flash it from the web interface
>
>    - If you boot from flash - you can only reflash u-boot, device tree
>    and kernel, but not rootfs (cause it's mounted). To reflash rootfs - boot
>    from the recovery card and use the web interface.
>
>
>
>> I then tried to add extra files onto the SD card, however the camera
>> would not boot from SD card after adding extra files. Is it not possible to
>> add files to filesystem on the SD card.
>>
>
> It is possible. Did you copy files to the ROOT partition or BOOT? Serial
> output would help.
>
>
>> I would like to be able to flash the camera with custom firmware with
>> additional services running on the camera. Will this be easy to do?
>>
>
> Brief info:
> https://wiki.elphel.com/wiki/Development_for_10393#Applications
>
> It needs a one time setup. Take/copy 'init' project as an example. After
> it's set up there's an extra bitbake task to copy files to the camera - I
> boot from SD card for development:
>
>> $ bitbake somerecipe -c compile -f; bitbake somerecipe -c target_scp -f
>
> This task requires pwdless access to the camera: ssh-copy-id
> root at 192.168.0.9
>
> If some application already exists in Yocto or OE - you just need to
> include it to the list in the elphel393/meta/meta-elphel393/
> recipes-core/images/core-image-elphel393.bb
>
> Best regards,
> Oleg Dzhimiev
> Electronics Engineer
> phone: +1 801 783 5555 x124 <(801)%20783-5555>
> Elphel, Inc.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://support.elphel.com/pipermail/support-list_support.elphel.com/attachments/20180322/4336ab07/attachment-0001.html>