Compiler Error with "Bluetooth LE Direct Test Mode" Example

RE: Compiler Error with "Bluetooth LE Direct Test Mode" Example

Håkon Alseth — Tue, 26 Sep 2023 13:01:41 GMT

Hi Georg,

I'm sorry for misunderstanding. I was now able to recreate the scenario.

As you mention, you explicitly select "prj.conf", the build system does not seem to pick up child_image's, like the "remote_shell", and fail to build due to this missing image for the app core cpu.

The problem is that it will still pick up the boards/nrf5340dk_nrf5340_cpunet.overlay file, which points to the IPC interface (for communication between the two cores), but the IPC itself isn't included (ie. the boards/nrf5340dk_nrf5340_cpunet.conf file), as we've overridden the CONF_FILE parameter.

In the console, we can see the echo'ed west command for a non-working build:

west build --build-dir /tmp/direct_test_mode_1/build_4 /tmp/direct_test_mode_1 --pristine --board nrf5340dk_nrf5340_cpunet --no-sysbuild -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE" -DCONF_FILE:STRING="/tmp/direct_test_mode_1/prj.conf"

vs. a working build:

west build --build-dir /tmp/direct_test_mode_1/build_6 /tmp/direct_test_mode_1 --pristine --board nrf5340dk_nrf5340_cpunet --no-sysbuild -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE"

CONF_FILE will override overall kconfig selection, while the wanted functionality in this scenario would likely be; EXTRA_CONF_FILE will overload (ie. add a new) Kconfig selection:

https://docs.zephyrproject.org/latest/develop/application/index.html#important-build-system-variables

The latter functionality is provided in vscode via the "Kconfig fragments" selection when creating the build.

Kind regards,

Håkon

RE: Compiler Error with "Bluetooth LE Direct Test Mode" Example

Georg — Tue, 26 Sep 2023 09:04:43 GMT

Hello,

when changing the build configuraion the compile error disappears.

This can be achieved by changing the Configuraion from "prj.conf" to "Use build system default".

What is the reason for this ?

Best regards,

Georg

RE: Compiler Error with "Bluetooth LE Direct Test Mode" Example

Georg — Mon, 25 Sep 2023 15:00:33 GMT

Hello,

I didn't any modification. I think you could reproduce the problem when creating your own project which is basing on the

"Bluetooth LE Direct Test Mode" example.

When looking at line 73 there ist just: "is_msb_read = false;"

It seems to be ok!

Best regards

Georg

RE: Compiler Error with "Bluetooth LE Direct Test Mode" Example

Håkon Alseth — Mon, 25 Sep 2023 14:30:28 GMT

Hi,

Did you make any changes to the example after copying it out?

It seems to point to a line in main that does not align with a missing device:

[quote user=""]C:\Projekte\direct_test_mode\src\main.c:73: undefined reference to `__device_dts_ord_65'[/quote]

Kind regards,

Håkon