#include #include / { cpus { cpu@0 { compatible = "arm,cortex-m0"; }; }; flash0: flash { reg = <0x00000000 DT_FLASH_SIZE>; }; sram0: memory { reg = <0x20000000 DT_SRAM_SIZE>; }; soc { uart0: uart@40002000 { compatible = "nordic,nrf-uart"; reg = <0x40002000 0x1000>; interrupts = <2 1>; status = "disabled"; label = "UART_0"; }; }; }; &nvic { arm,num-irq-priority-bits = <2>; };