48 # we have different config files for V1 and V2
49 PX4_V1_CONFIG_FILE=$(MK_DIR)/PX4/config_px4fmu-v1_APM.mk
50 PX4_V2_CONFIG_FILE=$(MK_DIR)/PX4/config_px4fmu-v2_APM.mk //这文件包含了编译目标的依赖,也就是具体编译的那些模块哪些驱动
51 PX4_V4_CONFIG_FILE=$(MK_DIR)/PX4/config_px4fmu-v4_APM.mk