mainmenu "RT-Thread Project Configuration" config BSP_DIR string option env="BSP_ROOT" default "." config RTT_DIR string option env="RTT_ROOT" default "../../.." source "$RTT_DIR/Kconfig" config BSP_RK2108 bool select ARCH_ARM select ARCH_ARM_CORTEX_M select ARCH_ARM_CORTEX_M4 select RT_USING_COMPONENTS_INIT select RT_USING_USER_MAIN default y source "$BSP_DIR/board/Kconfig" source "$BSP_DIR/driver/Kconfig"