利用usb协议进行对u盘文件的删除、新建、修改，及文件夹的删除新建-Agreement on the use of usb disk u delete files, create, modify, and delete the new folder

arm7控制usb芯片ch375例子程序,该程序将U盘中的/C51/CH375HFT.C文件中的小写字母转成大写字母后, 写到新建的文件中.-usb chip arm7 control procedures ch375 example, the program will be U disk/C51/CH375HFT.C document lowercase letters to write to Queen National Cheng Kung University, wrote the ne