I don't use UART of nRF5340. But west build failed if I remove unused UART pin configuration from nrf5340_cpuapp_common-pinctrl.dtsi.
/*
uart0_default: uart0_default {
group1 {
psels = <NRF_PSEL(UART_TX, 0, 20)>,
<NRF_PSEL(UART_RTS, 0, 19)>;
};
group2 {
psels = <NRF_PSEL(UART_RX, 0, 22)>,
<NRF_PSEL(UART_CTS, 0, 21)>;
bias-pull-up;
};
};
uart0_sleep: uart0_sleep {
group1 {
psels = <NRF_PSEL(UART_TX, 0, 20)>,
<NRF_PSEL(UART_RX, 0, 22)>,
<NRF_PSEL(UART_RTS, 0, 19)>,
<NRF_PSEL(UART_CTS, 0, 21)>;
low-power-enable;
};
};
*/
C:\ncs\v2.4.0\nrf\samples\minimal_log>west build -b nrf5340dk_nrf5340_cpuapp -- west build: generating a build system Loading Zephyr default modules (Zephyr base). -- Application: C:/ncs/v2.4.0/nrf/samples/minimal_log -- CMake version: 3.20.5 -- Using NCS Toolchain 2.4.0 for building. (C:/ncs/toolchains/31f4403e35/cmake) -- Found Python3: C:/ncs/toolchains/31f4403e35/opt/bin/python.exe (found suitable exact version "3.8.2") found components: Interpreter -- Cache files will be written to: C:/ncs/v2.4.0/zephyr/.cache -- Zephyr version: 3.3.99 (C:/ncs/v2.4.0/zephyr) -- Found west (found suitable version "1.0.0", minimum required is "0.7.1") -- Board: nrf5340dk_nrf5340_cpuapp -- Found host-tools: zephyr 0.16.0 (C:/ncs/toolchains/31f4403e35/opt/zephyr-sdk) -- Found toolchain: zephyr 0.16.0 (C:/ncs/toolchains/31f4403e35/opt/zephyr-sdk) -- Found Dtc: C:/ncs/toolchains/31f4403e35/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6") -- Found BOARD.dts: C:/ncs/v2.4.0/zephyr/boards/arm/nrf5340dk_nrf5340/nrf5340dk_nrf5340_cpuapp.dts devicetree error: /soc/peripheral@50000000/uart@8000: undefined node label 'uart0_default' -- In: C:/ncs/v2.4.0/nrf/samples/minimal_log/build/zephyr, command: C:/ncs/toolchains/31f4403e35/opt/bin/python.exe;C:/ncs/v2.4.0/zephyr/scripts/dts/gen_defines.py;--dts;C:/ncs/v2.4.0/nrf/samples/minimal_log/build/zephyr/zephyr.dts.pre;--dtc-flags;'-Wno-unique_unit_address_if_enabled';--bindings-dirs;C:/ncs/v2.4.0/nrf/dts/bindings;C:/ncs/v2.4.0/zephyr/dts/bindings;--header-out;C:/ncs/v2.4.0/nrf/samples/minimal_log/build/zephyr/include/generated/devicetree_generated.h.new;--dts-out;C:/ncs/v2.4.0/nrf/samples/minimal_log/build/zephyr/zephyr.dts.new;--edt-pickle-out;C:/ncs/v2.4.0/nrf/samples/minimal_log/build/zephyr/edt.pickle;--vendor-prefixes;C:/ncs/v2.4.0/nrf/dts/bindings/vendor-prefixes.txt;--vendor-prefixes;C:/ncs/v2.4.0/zephyr/dts/bindings/vendor-prefixes.txt CMake Error at C:/ncs/v2.4.0/zephyr/cmake/modules/dts.cmake:276 (message): gen_defines.py failed with return code: 1 Call Stack (most recent call first): C:/ncs/v2.4.0/zephyr/cmake/modules/zephyr_default.cmake:115 (include) C:/ncs/v2.4.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include) C:/ncs/v2.4.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate) CMakeLists.txt:5 (find_package) -- Configuring incomplete, errors occurred! FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\31f4403e35\opt\bin\cmake.EXE' '-DWEST_PYTHON=C:\ncs\toolchains\31f f4403e35\opt\bin\python.exe' '-BC:\ncs\v2.4.0\nrf\samples\minimal_log\build' -GNinja -DBOARD=nrf5340dk_nrf5340_cpuapp '-SC:\ncs\v2.4.0\nrf\samples\minimal_log'
