mainmenu "RT-Thread Project Configuration" config BSP_DIR string option env="BSP_ROOT" default "." config RTT_DIR string option env="RTT_ROOT" default "../../.." config PKGS_DIR string option env="PKGS_ROOT" default "packages" source "$RTT_DIR/Kconfig" source "$PKGS_DIR/Kconfig" config SOC_XPLORER4330_M4 bool select ARCH_ARM_CORTEX_M4 default y