Dear All,

I hope you all are doing well.

I am trying an example in

zephyrproject/zephyr/sample/display/ili9340

The example is building fine with nucleo board

west build -b nucleo_l476rg .

BUT

Please advise on the following error when building with nrf52840 west build -b nrf52840_pca10056 .

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

ccache /home/muh/zephyr-sdk-0.10.3/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -DBUILD_VERSION=zephyr-v2.0.0-1364-gbb3cd11bf192 -DKERNEL -DNRF52840_XXAA -D_FORTIFY_SOURCE=2 -D__PROGRAM_START -D__ZEPHYR__=1 -I/home/muh/zephyrproject/zephyr/kernel/include -I/home/muh/zephyrproject/zephyr/arch/arm/include -I/home/muh/zephyrproject/zephyr/include -I/home/muh/zephyrproject/zephyr/include/drivers -Izephyr/include/generated -I/home/muh/zephyrproject/zephyr/soc/arm/nordic_nrf/nrf52 -I/home/muh/zephyrproject/zephyr/ext/hal/cmsis/Core/Include -I/home/muh/zephyrproject/modules/hal/nordic/nrfx -I/home/muh/zephyrproject/modules/hal/nordic/nrfx/drivers/include -I/home/muh/zephyrproject/modules/hal/nordic/nrfx/mdk -I/home/muh/zephyrproject/modules/hal/nordic/. -isystem /home/muh/zephyrproject/zephyr/lib/libc/minimal/include -isystem /home/muh/zephyr-sdk-0.10.3/arm-zephyr-eabi/bin/../lib/gcc/arm-ze

phyr-eabi/8.3.0/include -isystem /home/muh/zephyr-sdk-0.10.3/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/8.3.0/include-fixed -Os -imacros/home/muh/zephyrproject/zephyr/samples/display/ili9340/build/zephyr/include/generated/autoconf.h -ffreestanding -fno-common -g -mthumb -mcpu=cortex-m4 -imacros/home/muh/zephyrproject/zephyr/include/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wno-main -Wno-pointer-sign -Wpointer-arith -Wno-unused-but-set-variable -Werror=implicit-int -fno-asynchronous-unwind-tables -fno-pie -fno-pic -fno-strict-overflow -fno-reorder-functions -fno-defer-pop -fmacro-prefix-map=/home/muh/zephyrproject/zephyr/samples/display/ili9340=CMAKE_SOURCE_DIR -fmacro-prefix-map=/home/muh/zephyrproject/zephyr=ZEPHYR_BASE -ffunction-sections -fdata-sections -mabi=aapcs -march=armv7e-m -std=c99 -nostdinc -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

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

../src/main.c:49:27: error: 'DT_INST_0_ILITEK_ILI9340_LABEL' undeclared (first use in this function); did you mean 'DT_INST_0_JEDEC_SPI_NOR_LABEL'?

  dev = device_get_binding(DT_INST_0_ILITEK_ILI9340_LABEL);

                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

                           DT_INST_0_JEDEC_SPI_NOR_LABEL

../src/main.c:49:27: note: each undeclared identifier is reported only once for each function it appears in

[4/106] Building C object zephyr/CMake...r/soc/arm/nordic_nrf/nrf52/power.c.obj

ninja: build stopped: subcommand failed.

Regards