from SCons.Script import Default, DefaultEnvironment env = DefaultEnvironment() env.Replace( AR="arm-none-eabi-ar", AS="arm-none-eabi-gcc", CC="arm-none-eabi-gcc", CXX="arm-none-eabi-g++", NM="arm-none-eabi-nm", LINK="arm-none-eabi-gcc", LD="arm-none-eabi-gcc", OBJCOPY="arm-none-eabi-objcopy", OBJDUMP="arm-none-eabi-objdump", RANLIB="arm-none-eabi-ranlib", SIZETOOL="arm-none-eabi-size", ) # I have no idea how does PlatformIO work # env.SConscript("frameworks/realtek-ambz-sdk.py") target_elf = env.BuildProgram() target_fw = env.DumpFirmwareBinary("firmware.bin", target_elf) Default(target_fw)