基于SEEDDEC2407开发板上的USB接口驱动软件，可实现对优盘等USB接口的存储介质进行访问，并增加了支持FAT16文件系统的功能。-Based on SEEDDEC2407 development board on the USB interface driver software for Flash etc, it can realize the USB interface storage medium access, and increases the support FAT16 f