Adding STM32 board to zephyr-training

Training
1

Hello Golioth,

I’m working on adding ST Nucleo-F767zi board support to the zephyr training.

So far I made the changes to the sdk and the zephyr-training repos so that I can build the examples/apps (02, 03 and 04) successfully.

I can also run examples/apps on my board without modifying any app code,

except the 05_golioth app, it seems that the build system doesn’t take into account my boards/nucleof767_stm32f767.conf file and when I try to force it using the -DCONF_FILE=“boards/nucleof767_stm32f767.conf” in the west commands it overrides the prj.conf and I get a build error.

The 05_golioth app only worked when I moved my board specific configs inside the prj.conf file

Here is my environment:

  • Zephy SDK and dependencies setup according to official docs
  • Windows 11
  • PowerShell 7
  • Python virtual environment to run west

and here the changes on my GitHub forks for the zephyr-training and Golioth SDK where you can find the changes I made to add my STM32 board:

Please note that I’m new to west and zephyr build system and even though I can build and run the examples, I’m not really sure if I made the correct changes or if there is a better way to handle this.

Thank you in advance,
Bayrem

2

Hi, Bayrem!

What’s the actual build error you’re getting? Can you paste it in this thread? Also, what’s the exact build command you’re using?

Cheers,
Tim

3

Hi Tim,

for my board I need these 2 configs to connect to network:

CONFIG_NET_DHCPV4=y
CONFIG_GOLIOTH_SAMPLE_DHCP_BIND=y

If I add these configs inside the app\05_golioth\prj.conf and build with the following command everything works fine.
west build -b nucleo_f767zi -- -DDTC_OVERLAY_FILE="boards/nucleof767_stm32f767.overlay"

However I want to add those configs in app\05_golioth\boards\nucleof767_stm32f767.conf and when I do that those configs are not taken into consideration when building.

I also tried to force it using the west command like the following, but then the prj.conf file is not taken into consideration when building.

west build -b nucleo_f767zi -- -DDTC_OVERLAY_FILE="boards/nucleof767_stm32f767.overlay" -DCONF_FILE="boards/nucleof767_stm32f767.conf"

I’m not sure how to tell the build system to use both the prj.conf and the boards/nucleof767_stm32f767.conf

Regards,
Bayrem

4

Hi Bayrem,

West will automatically pick up board overlay and board config files based on the name of the board. If you put the overlay at boards/nucleo_f767zi.overlay and the config file at boards/nucleo_f767zi.conf then you can build with west build -b nucleo_f767zi. Just make sure the file names match the board name you pass to west.

Sam

1 Like
5

Hi Sam!

Thank you for the answer, that worked!

Now I can build and run the following apps on my board successfully:

  • 02_helloworld
  • 03_LED
  • 04_blinkRTOS
  • 05_golioth (I’m able to get an IP address from DHCP)

However when I try to build the 01_IOT app I get a build error stating that it cannot find qcbor.

So I added qcbor include path to the app\01_IOT\CMakeLists.txt file like the following:

target_include_directories(app PUBLIC ${ZEPHYR_BASE}/../modules/tee/tf-m/qcbor/inc)

That solved the include error, but now I’m getting a new error of undefined reference of ``QCBOREncode_AddBuffer` function:

image
image1920×1012 344 KB

Am I missing something here?

You can find here all my changes to the zephyr-training repo.

Regards,
Bayrem