RE: Matter thermostat sample building issue nrf52840

ady — Fri, 31 Oct 2025 14:08:38 GMT

Thank you!

RE: Matter thermostat sample building issue nrf52840

PjGlasso — Thu, 30 Oct 2025 18:34:38 GMT

Hi there,

Looks like an Overlay issue, check the order you have and verify the nodes and names.

[quote userid="148849" url="~/f/nordic-q-a/125315/matter-thermostat-sample-building-issue-nrf52840"]-- Found devicetree overlay: C:/ncs/v3.1.1/nrf/samples/matter/thermostat/sysbuild/mcuboot/boards/nrf52840dk_nrf52840.overlay
devicetree error: /chosen: undefined node label 'mx25r64'[/quote]

start there.

It will build.

HTH

GL :-) PJ

it should read like this
"

-- Found west (found suitable version "1.4.0", minimum required is "0.14.0")
-- Board: nrf52840dk, qualifiers: nrf52840
-- Found host-tools: zephyr 0.17.0 (C:/ncs/toolchains/c1a76fddb2/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.17.0 (C:/ncs/toolchains/c1a76fddb2/opt/zephyr-sdk)
-- Found BOARD.dts: C:/ncs/v3.1.1/zephyr/boards/nordic/nrf52840dk/nrf52840dk_nrf52840.dts
-- Found devicetree overlay: D:/Nordic/myapps/workspace/thermostat_1/boards/nrf52840dk_nrf52840.overlay
-- Generated zephyr.dts: D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/zephyr.dts
-- Generated pickled edt: D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/edt.pickle
-- Generated devicetree_generated.h: D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/include/generated/zephyr/devicetree_generated.h
Parsing D:/Nordic/myapps/workspace/thermostat_1/Kconfig
Loaded configuration 'D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/.config'
Merged configuration 'D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/.config.sysbuild'
No change to configuration in 'D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/.config'
No change to Kconfig header in 'D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/include/generated/zephyr/autoconf.h'
CMake Warning at C:/ncs/v3.1.1/nrf/cmake/version_app.cmake:19 (message):
APP_VERSION: git rev-parse failed: fatal: not a git repository (or any of
the parent directories): .git
Call Stack (most recent call first):
C:/ncs/v3.1.1/nrf/CMakeLists.txt:26 (include)

=========== Generating psa_crypto_config ===============
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_SPM: False
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_C: True
Backup: CONFIG_MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER: False
Backup: CONFIG_MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT: False
......
"

Success looks like this: "
[493/493] Linking CXX executable zephyr\zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 782284 B 982528 B 79.62%
RAM: 157492 B 256 KB 60.08%
IDT_LIST: 0 GB 32 KB 0.00%
Generating files from D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/zephyr.elf for board: nrf52840dk
image.py: sign the payload
image.py: sign the payload
[11/23] Generating new Factory Data...
[INFO] Generating SPAKE2+ Verifier...
[WARNING] KEY password has not been provided. It means that DAC key is not encrypted.
[INFO] Validating JSON with schema...
[INFO] Validate OK
[12/23] Performing build step for 'mcuboot'
[6/182] Generating include/generated/zephyr/version.h
-- Zephyr version: 4.1.99 (C:/ncs/v3.1.1/zephyr), build: ncs-v3.1.1
[9/182] Generating include/generated/zephyr/syscall_dispatch.c, include/generated/zephyr/syscall_exports_llext.c, syscall_weakdefs_llext.c, include/generated/zephyr/sys[153/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/helpers/nrfx_flag3[154/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/mdk/system_nrf5284[157/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/drivers/src/nrfx_c[160/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/drivers/src/nrfx_w[167/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/helpers/nrfx_flag3[170/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/helpers/nrfx_ram_c[172/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/drivers/src/nrfx_c[173/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/drivers/src/nrfx_n[174/182] Building C object modules/hal_nordic/modules/hal_nordic/nrfx/CMakeFiles/modules__hal_nordic__nrfx.dir/C_/ncs/v3.1.1/modules/hal/nordic/nrfx/drivers/src/nrfx_w[182/182] Linking C executable zephyr\zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 24168 B 28 KB 84.29%
RAM: 18304 B 256 KB 6.98%
IDT_LIST: 0 GB 32 KB 0.00%
Generating files from D:/Nordic/myapps/workspace/thermostat_1/build/mcuboot/zephyr/zephyr.elf for board: nrf52840dk
[23/23] Generating ../merged.hex "

It builds fine , 3.1.1 and toolchains 3.1.1 Nrf52840 DK board. (check your boards dir)

Flashes AOK to DK board.

[169/177] Building CXX object modules/connectedhomeip/CMakeFiles/matter-data-model.dir/C_/ncs/v3.1.1/modules/lib/matter/zzz_generated/app-common/app-common/zap-generate[177/177] Linking CXX executable zephyr\zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 782284 B 982528 B 79.62%
RAM: 157492 B 256 KB 60.08%
IDT_LIST: 0 GB 32 KB 0.00%
Generating files from D:/Nordic/myapps/workspace/thermostat_1/build/thermostat_1/zephyr/zephyr.elf for board: nrf52840dk
image.py: sign the payload
image.py: sign the payload
[1/12] Performing build step for 'mcuboot'
[29/29] Linking C executable zephyr\zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 24168 B 28 KB 84.29%
RAM: 18304 B 256 KB 6.98%
IDT_LIST: 0 GB 32 KB 0.00%
Generating files from D:/Nordic/myapps/workspace/thermostat_1/build/mcuboot/zephyr/zephyr.elf for board: nrf52840dk
[12/12] Generating ../merged.hex
-- west flash: using runner nrfutil
-- runners.nrfutil: reset after flashing requested
-- runners.nrfutil: Flashing file: D:\Nordic\myapps\workspace\thermostat_1\build\merged.hex
-- runners.nrfutil: Erasing address ranges touched by firmware
-- runners.nrfutil: Programming image
-- runners.nrfutil: Verifying image
-- runners.nrfutil: Reset
-- runners.nrfutil: Board(s) with serial number(s) 1050289493 flashed successfully.

HTH 🙂

I got the QR code from the Serial port, works fine 👍