大家用lpc214x，开发usb的朋友，在编好usb前端驱动和固件编程之后，就可用这个pc机端的程序检验自己的usb是否好使。-U.S. used lpc214x, development usb friend that in a good usb drive and front-end after the firmware programming, you can use this pc client machine to test his procedure so that the usb