#include #include / { cpus { #address-cells = <1>; #size-cells = <0>; cpu@0 { device_type = "cpu"; compatible = "arm,cortex-m4f"; reg = <0>; }; }; flash0: flash@0 { reg = <0x00000000 DT_FLASH_SIZE>; }; sram0: memory@20000000 { device_type = "memory"; compatible = "mmio-sram"; reg = <0x20000000 DT_SRAM_SIZE>; }; soc { uart0: uart@40002000 { compatible = "nordic,nrf-uarte", "nordic,nrf-uart"; reg = <0x40002000 0x1000>; interrupts = <2 1>; status = "disabled"; label = "UART_0"; }; }; }; &nvic { arm,num-irq-priority-bits = <3>; };