Difficulty creating a Zephyr-based nRFConnect project within VSCode that contains a custom sensor driver

RE: Difficulty creating a Zephyr-based nRFConnect project within VSCode that contains a custom sensor driver

Naeem Maroof — Mon, 11 Dec 2023 14:09:03 GMT

Hello Josh,

Sorry for the delayed response.

Is there any update at your end?

I started with the Example Application provided by Nordic. This is same/similar version as of the zephyr example application.

I followed the steps that are described in the readme. Particularly, I ran the following commands in the command line (west must have been installed already):

west init -m https://github.com/nrfconnect/ncs-example-application --mr main my-workspace
cd my-workspace
west update
cd ncs-example-application
west build -b custom_plank app

this would initiate a west repo, download the files from github, do an update, and then build the APP (the application folder containing the source code) for the custom_plank board.

Next, I opened the APP folder with the VSCode, and built for the NRF5840 board after adding a suitable overlay, and it compiled well.

RE: Difficulty creating a Zephyr-based nRFConnect project within VSCode that contains a custom sensor driver

soaringphotos44 — Tue, 28 Nov 2023 18:15:59 GMT

So for Item #1, all you show above is that you cloned the project. Were you able to build it successfully? If so, how? I'd like to see the steps to take that example project, clone it, open it, configure for nrf52832, and build it. That way we have the full successful chain.

RE: Difficulty creating a Zephyr-based nRFConnect project within VSCode that contains a custom sensor driver

soaringphotos44 — Tue, 28 Nov 2023 18:09:31 GMT

Adding the following overlay did not fix the problem:

/{
    examplesensor0 {
        compatible = "zephyr,examplesensor";
        input-gpios = <&gpio0 0 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
    };
};

RE: Difficulty creating a Zephyr-based nRFConnect project within VSCode that contains a custom sensor driver

soaringphotos44 — Tue, 28 Nov 2023 17:39:38 GMT

It appears that the device "examplesensor0" is not being added to the device tree. Am I missing some kind of Device Tree overlay step?

RE: Difficulty creating a Zephyr-based nRFConnect project within VSCode that contains a custom sensor driver

soaringphotos44 — Tue, 28 Nov 2023 17:37:44 GMT

Hi Naeem, unfortunately the "Out of Tree Driver" sample is missing all the DT bindings, etc. It's not a great example.

When I clone "my-app" to a custom folder such as: /Users/my-username/nordic I can open the folder in VSCode but when I go to "open an existing application" I receive the following error:

The directory "/Users/my-username/nordic/my-app" does not contain an application source.

If I open app folder within my-app:

The app opens up

I create a new build configuration: If you use 2.4.2 the failure is different then when using 2.5.0

Building with 2.5.0 you get this error:

Building app

/bin/sh -c west build --build-dir /Users/my_username/nordic/my-app/app/build /Users/my_username/nordic/my-app/app --pristine --board nrf52dk_nrf52832 --no-sysbuild -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE" -DBOARD_ROOT:STRING="/Users/my_username/nordic/my-app" -DCONF_FILE:STRING="/Users/my_username/nordic/my-app/app/prj.conf"

-- west build: generating a build system

Loading Zephyr default modules (Zephyr base).

-- Application: /Users/my_username/nordic/my-app/app

-- CMake version: 3.20.5

-- Found Python3: /opt/nordic/ncs/toolchains/20d68df7e5/opt/python@3.9/bin/python3.9 (found suitable version "3.9.6", minimum required is "3.8") found components: Interpreter

-- Cache files will be written to: /Users/my_username/Library/Caches/zephyr

-- Zephyr version: 3.4.99 (/opt/nordic/ncs/v2.5.0/zephyr)

-- Found west (found suitable version "1.1.0", minimum required is "0.14.0")

-- Board: nrf52dk_nrf52832

-- Found host-tools: zephyr 0.16.1 (/opt/nordic/ncs/toolchains/20d68df7e5/opt/zephyr-sdk)

-- Found toolchain: zephyr 0.16.1 (/opt/nordic/ncs/toolchains/20d68df7e5/opt/zephyr-sdk)

-- Found Dtc: /opt/nordic/ncs/toolchains/20d68df7e5/bin/dtc (found suitable version "1.6.1", minimum required is "1.4.6")

-- Found BOARD.dts: /opt/nordic/ncs/v2.5.0/zephyr/boards/arm/nrf52dk_nrf52832/nrf52dk_nrf52832.dts

-- Generated zephyr.dts: /Users/my_username/nordic/my-app/app/build/zephyr/zephyr.dts

-- Generated devicetree_generated.h: /Users/my_username/nordic/my-app/app/build/zephyr/include/generated/devicetree_generated.h

-- Including generated dts.cmake file: /Users/my_username/nordic/my-app/app/build/zephyr/dts.cmake

Parsing /Users/my_username/nordic/my-app/app/Kconfig

Loaded configuration '/opt/nordic/ncs/v2.5.0/zephyr/boards/arm/nrf52dk_nrf52832/nrf52dk_nrf52832_defconfig'

Merged configuration '/Users/my_username/nordic/my-app/app/prj.conf'

Configuration saved to '/Users/my_username/nordic/my-app/app/build/zephyr/.config'

Kconfig header saved to '/Users/my_username/nordic/my-app/app/build/zephyr/include/generated/autoconf.h'

-- Found GnuLd: /opt/nordic/ncs/toolchains/20d68df7e5/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd (found version "2.38")

-- The C compiler identification is GNU 12.2.0

-- The CXX compiler identification is GNU 12.2.0

-- The ASM compiler identification is GNU

-- Found assembler: /opt/nordic/ncs/toolchains/20d68df7e5/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc

-- Configuring done

-- Generating done

-- Build files have been written to: /Users/my_username/nordic/my-app/app/build

-- west build: building application

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FAILED: CMakeFiles/app.dir/src/main.c.obj

ccache /opt/nordic/ncs/toolchains/20d68df7e5/opt/zephyr-sdk/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -DKERNEL -DNRF52832_XXAA -DPICOLIBC_INTEGER_PRINTF_SCANF -D_FORTIFY_SOURCE=1 -D_POSIX_C_SOURCE=200809 -D__LINUX_ERRNO_EXTENSIONS__ -D__PROGRAM_START -D__ZEPHYR__=1 -I/opt/nordic/ncs/v2.5.0/zephyr/include -Izephyr/include/generated -I/opt/nordic/ncs/v2.5.0/zephyr/soc/arm/nordic_nrf/nrf52 -I/opt/nordic/ncs/v2.5.0/zephyr/soc/arm/nordic_nrf/common/. -I/opt/nordic/ncs/v2.5.0/nrf/include -I/opt/nordic/ncs/v2.5.0/nrf/tests/include -I/opt/nordic/ncs/v2.5.0/modules/hal/cmsis/CMSIS/Core/Include -I/opt/nordic/ncs/v2.5.0/zephyr/modules/cmsis/. -I/opt/nordic/ncs/v2.5.0/modules/hal/nordic/nrfx -I/opt/nordic/ncs/v2.5.0/modules/hal/nordic/nrfx/drivers/include -I/opt/nordic/ncs/v2.5.0/modules/hal/nordic/nrfx/mdk -I/opt/nordic/ncs/v2.5.0/zephyr/modules/hal_nordic/nrfx/. -I/opt/nordic/ncs/v2.5.0/modules/debug/segger/SEGGER -I/opt/nordic/ncs/v2.5.0/modules/debug/segger/Config -fno-strict-aliasing -Os -imacros /Users/my_username/nordic/my-app/app/build/zephyr/include/generated/autoconf.h -fno-printf-return-value -fno-common -g -gdwarf-4 -fdiagnostics-color=always -mcpu=cortex-m4 -mthumb -mabi=aapcs -mfp16-format=ieee --sysroot=/opt/nordic/ncs/toolchains/20d68df7e5/opt/zephyr-sdk/arm-zephyr-eabi/arm-zephyr-eabi -imacros /opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wno-pointer-sign -Wpointer-arith -Wexpansion-to-defined -Wno-unused-but-set-variable -Werror=implicit-int -fno-pic -fno-pie -fno-asynchronous-unwind-tables -ftls-model=local-exec -fno-reorder-functions --param=min-pagesize=0 -fno-defer-pop -fmacro-prefix-map=/Users/my_username/nordic/my-app/app=CMAKE_SOURCE_DIR -fmacro-prefix-map=/opt/nordic/ncs/v2.5.0/zephyr=ZEPHYR_BASE -fmacro-prefix-map=/opt/nordic/ncs/v2.5.0=WEST_TOPDIR -ffunction-sections -fdata-sections --specs=picolibc.specs -std=c99 -MD -MT CMakeFiles/app.dir/src/main.c.obj -MF CMakeFiles/app.dir/src/main.c.obj.d -o CMakeFiles/app.dir/src/main.c.obj -c ../src/main.c

In file included from /opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/toolchain/gcc.h:92,

from /opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/toolchain.h:50,

from /opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/kernel_includes.h:19,

from /opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/kernel.h:17,

from /Users/my_username/nordic/my-app/app/src/main.c:6:

../src/main.c: In function 'main':

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:85:41: error: '__device_dts_ord_DT_N_NODELABEL_examplesensor0_ORD' undeclared (first use in this function)

85 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)

| ^~~~~~~~~

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/toolchain/common.h:132:26: note: in definition of macro '_DO_CONCAT'

132 | #define _DO_CONCAT(x, y) x ## y

| ^

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:85:33: note: in expansion of macro '_CONCAT'

85 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)

| ^~~~~~~

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:211:37: note: in expansion of macro 'DEVICE_NAME_GET'

211 | #define DEVICE_DT_NAME_GET(node_id) DEVICE_NAME_GET(Z_DEVICE_DT_DEV_ID(node_id))

| ^~~~~~~~~~~~~~~

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:228:34: note: in expansion of macro 'DEVICE_DT_NAME_GET'

228 | #define DEVICE_DT_GET(node_id) (&DEVICE_DT_NAME_GET(node_id))

| ^~~~~~~~~~~~~~~~~~

/Users/my_username/nordic/my-app/app/src/main.c:20:18: note: in expansion of macro 'DEVICE_DT_GET'

20 | sensor = DEVICE_DT_GET(DT_NODELABEL(examplesensor0));

| ^~~~~~~~~~~~~

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:85:41: note: each undeclared identifier is reported only once for each function it appears in

85 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)

| ^~~~~~~~~

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/toolchain/common.h:132:26: note: in definition of macro '_DO_CONCAT'

132 | #define _DO_CONCAT(x, y) x ## y

| ^

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:85:33: note: in expansion of macro '_CONCAT'

85 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)

| ^~~~~~~

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:211:37: note: in expansion of macro 'DEVICE_NAME_GET'

211 | #define DEVICE_DT_NAME_GET(node_id) DEVICE_NAME_GET(Z_DEVICE_DT_DEV_ID(node_id))

| ^~~~~~~~~~~~~~~

/opt/nordic/ncs/v2.5.0/zephyr/include/zephyr/device.h:228:34: note: in expansion of macro 'DEVICE_DT_NAME_GET'

228 | #define DEVICE_DT_GET(node_id) (&DEVICE_DT_NAME_GET(node_id))

| ^~~~~~~~~~~~~~~~~~

/Users/my_username/nordic/my-app/app/src/main.c:20:18: note: in expansion of macro 'DEVICE_DT_GET'

20 | sensor = DEVICE_DT_GET(DT_NODELABEL(examplesensor0));

| ^~~~~~~~~~~~~

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[94/141] Building C object modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/opt/nordic/ncs/v2.5.0/modules/hal/nordic/nrfx/drivers/src/nrfx_clock.c.obj

[95/141] Building C object modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/opt/nordic/ncs/v2.5.0/modules/hal/nordic/nrfx/drivers/src/nrfx_ppi.c.obj

[96/141] Building C object zephyr/drivers/pinctrl/CMakeFiles/drivers__pinctrl.dir/pinctrl_nrf.c.obj

[97/141] Building C object zephyr/drivers/gpio/CMakeFiles/drivers__gpio.dir/gpio_nrfx.c.obj

[98/141] Building C object modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/opt/nordic/ncs/v2.5.0/modules/hal/nordic/nrfx/drivers/src/nrfx_gpiote.c.obj

ninja: build stopped: subcommand failed.

FATAL ERROR: command exited with status 1: /opt/nordic/ncs/toolchains/20d68df7e5/bin/cmake --build /Users/my_username/nordic/my-app/app/build

So it seems I am unable to get the example cloned with

"git clone github.com/.../example-application my-app" to build, when using nrf52832 DK.

RE: Difficulty creating a Zephyr-based nRFConnect project within VSCode that contains a custom sensor driver

Naeem Maroof — Tue, 28 Nov 2023 15:26:16 GMT

Hello Josh,

Thank you for contacting DevZone at NordicSemi.

1) I created a folder named "case_customOTD" in a local folder (C:/ZTEMP)

then I opened this folder with the VS Code (you can select SDK version from the VS Code extension icon on the left)

I just opened a "nrf Connect" terminal in the VS Code, and typed the same git clone command that you have provided

It worked flawlessly and after that the repo is cloned in the folder

(I am on Windows OS)

2) Zephyr Out of Tree Driver sample is present in NCS 2.4.2.

I started with the VSCode, and selected NCS 2.4.2 as the SDK and the toolchain 2.4.2

I created a new application from samples and chose "Out of Tree Driver" sample from zephyr.

After creation of the application, I changed the SDK and toolchain version to 2.5.0

I built the application, and it is building just fine.

/BR, Naeem