Problems with flashing to nRF52840 starting from Lesson 2 of Nordic DevAcadamy.

[truth_lvr]

In my previous ticket regarding DevAcademy tutorial for nRF 52840 I already mentioned. that starting from lesson 2 iPhone cannot communicate with the board and the VS Code terminal was not working.

I guess I found the source of misbehavier, but don't know how to fix it. What I found is that Flashing process at Lesson1 is different from Flashing at Lessons 2, 3, and 4.  

Attached are results of Flashing in Lesson 1 and Lesson 4.

Lesson 1 Exersise 1

Lesson 4 Exersise 1

Thanks,

Steven.

[Marte Myrvold]

Hi Steven,

Which version of nRF Connect SDK are you using?

Can you share what your nRF52840 DK board.cmake file look like? The path to the file should be zephyr/boards/nordic/nrf52840dk/board.cmake for v2.7.0 and zephyr/boards/arm/nrf52840dk_nrf52840/board.cmake for v2.6 and earlier.

Have you set pyocd as the flash runner, for example, with BOARD_FLASH_RUNNER? The default flash runner is nrfjprog, which should be used unless something else is specified in the west command or by a CMake variable. You can read more about flash runners in Choosing a Runner

Best regards,
Marte

[truth_lvr]

Hi Marte,

When I was installing nRF Command-Line-Tools and nRF Connect for VS Code I followed Nordic Represantative instructions on youtube video:

https://www.youtube.com/watch?v=EAJdOqsL9m8&list=PLx_tBuQ_KSqEt7NK-H7Lu78lT2OijwIMl 

Never manualy changed something which was automatically setup. My nRF DK version is v2.7.99-cs1

Here is board.cmake file content:

Thanks, 

Steven.

[Marte Myrvold]

Hi Steven,

Please try using nRF Connect SDK v2.7.0 instead of v2.7.99-cs1.

Best regards,
Marte

[truth_lvr]

Hi Marte,

I decided to rewrite my email after I finaly was able to make working v2.7.0  But unfortunately the result was the same. Flashing program somehow was using as runner pyocd instead of nrgjprog.  Checked the link to "Choosing the Runner", but still  don't know which file I should modify in order it start working, 

Thanks,

Steven.

[Marte Myrvold]

Hi Steven,

I am not able to reproduce the issue on my side, and I see nothing in the exercise code that should make it use pyocd as the runner.

Can you share your build directory?

Please provide support information from the VS Code extension:

1. Open the command palette (Ctrl + Shift + P or View > Command Palette).
2. Write "nRF Connect: Generate support information" and press enter.
3. Copy the entire support information output.
4. Upload it here using Insert > Code or upload a .txt file with Insert > Image/video/file.

Make sure to remove confidential information you do not want to be shared in a public case.

Best regards,
Marte

[truth_lvr]

Hi Marte,

Output file is attached as .c file.

Thanks,

Fullscreen nRF Connect Output Support Information.c Download

IMPORTANT: The data below could contain sensitive or confidential information about your environment.
If you do not wish this to be seen by others, please make sure to remove it before sharing.

For help and support, visit the Nordic DevZone at https://devzone.nordicsemi.com/.

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      "Stephanvs.dot": "0.0.1",
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}

Steven.

PS

I also blindly tried to comment out script in the pyocd.board.cmake file in C:\ncs\v2.7.0\zephyr\boards\common directory, but got error. It looks like information for download is sourcing from pyocd.board.cmake but not from nrfjprog.board.cmake

Regards,

Steven.

[Marte Myrvold]

Hi Steven,

Please also share your build directory.

Best regards,
Marte

[truth_lvr]

Hi Marte,

The build directory for lesson 1: 

C:\2.1Nordic\myapps\bt-fund-main\lesson1\blefund_less1_exer1\build\zephyr 

For lesson 2: 

C:\2.1Nordic\myapps\bt-fund-main\lesson2\blefund_less2_exer1\build\zephyr 

Thanks,

Steven.

[Marte Myrvold]

Hi Steven,

Please zip your complete build directory and upload it using Insert > Image/video/file.

Best regards,
Marte

[truth_lvr]

Hi Marte,

Zipped build is attached.

Thanks,

Steven.7635.build.zip

[Marte Myrvold]

Hi Steven,

Based on your build directory, you are building for nRF52840 MDK and not DK. Please try to delete the build directory and create a new one, making sure to select nrf52840dk/nrf52840 as the board target.

Best regards,
Marte