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SMich.1
Senior
August 27, 2020
Question

Can't Burn eMMC with DCMI camera plugged

  • August 27, 2020
  • 3 replies
  • 2105 views

Hi, 

i moved to new ecosystem v2.0 "dunfell" and added my layers of wifi,camera, openCV and python packages from old Yocto ecosystem. 

when i trying to burn my custom board eMMC with my dcmi camera plugged it stuck on U-boot waiting for the USB connection to stm32Programmer to burn the eMMC .

when i stopping the burn process and i trying to turn on USB mass storage i cannot see the eMMC on my computer and when i unplugged the dcmi camera everything working perfectly.

and more wired stuff that it working fine with OLDER Yocto ECOSYSTEM.

what changed in U-boot with USB/DCMI peripherals ?

This topic has been closed for replies.

3 replies

Olivier GALLIEN
Technical Moderator
August 28, 2020

Hi @SMich.1​ 

First, supposed just a typo but to avoid any confusion : V2.0 ecosystem is based on Yocto "dunfell" not "thud".

Please confirm you move to this new ecosystem for all component ( tf-a, u-boot, kernel) ?

Then, if you have any console trace from u-boot when issue occurs it can help.

Olivier

Olivier GALLIEN In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
Olivier GALLIEN
Technical Moderator
August 28, 2020

Actually output trace from CubeProgrammer + UART Console are welcome for the failing case

Thx

Olivier GALLIEN In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
Olivier GALLIEN
Technical Moderator
August 28, 2020

Hi @SMich.1​ 

Can you tell me on which board you are working ? ST EV1 or your custom board ?

Thx,

Olivier

Olivier GALLIEN In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
SMich.1
SMich.1Author
Senior
August 28, 2020

yes it's a custom board

Olivier GALLIEN
Technical Moderator
August 28, 2020

Sorry it was already stated in original message. :\

I don't have much clue so far. Flashing eMMC with DCMI camera plugged on ST EVAL board doesn't show any problem.

To narrowing down the issue might be good to get GPIO pinout configuration for DCMI and USB on your custom board. Can you share in private message your schematics ?

Complete log traces from CubeProgrammer and UART are really welcome.

Thanks

Olivier

Olivier GALLIEN In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
SMich.1
SMich.1Author
Senior
September 5, 2020

where i can read what changed in new version of u-boot ?