if (TOOLCHAIN STREQUAL "gcc") set(TOOLCHAIN_COMMON_FLAGS -mthumb -mcpu=cortex-m0 -mfloat-abi=soft ) set(FREERTOS_PORT GCC_ARM_CM0 CACHE INTERNAL "") elseif (TOOLCHAIN STREQUAL "clang") set(TOOLCHAIN_COMMON_FLAGS --target=arm-none-eabi -mcpu=cortex-m0 ) set(FREERTOS_PORT GCC_ARM_CM0 CACHE INTERNAL "") elseif (TOOLCHAIN STREQUAL "iar") set(TOOLCHAIN_COMMON_FLAGS --cpu cortex-m0 ) set(FREERTOS_PORT IAR_ARM_CM0 CACHE INTERNAL "") endif ()