mainmenu "RT-Thread Configuration" config BSP_DIR string option env="BSP_ROOT" default "." config RTT_DIR string option env="RTT_ROOT" default "../../.." # you can change the RTT_ROOT default "../../.." to your rtthread_root, # example : default "F:/git_repositories/rt-thread" config PKGS_DIR string option env="PKGS_ROOT" default "packages" config NU_PKGS_DIR string option env="NU_PKGS_ROOT" default "../libraries/nu_packages" source "$RTT_DIR/Kconfig" source "$PKGS_DIR/Kconfig" source "$NU_PKGS_DIR/Kconfig" source "$BSP_DIR/board/Kconfig"