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#include <arm/armv7-m.dtsi> / { cpus { cpu@0 { compatible = "arm,cortex-m3"; }; }; sram0: memory { compatible = "sram"; reg = <0x20000000 (64*1024)>; }; flash0: flash { reg = <0x00000000 (256*1024)>; }; soc { }; }; &nvic { arm,num-irq-priority-bits = <3>; };