USB 开发资料类，USB实例程序类，USB应用笔记类，无线技术相关论文-USBUSB development of information categories, USB examples of class, USB Application Notes category, wireless technology-related papers

基于an2131的usb程序，可以实际应用，部分标有注释-An2131 the usb-based procedures, can be the practical application, some marked with the Notes

带有USBXpress共享的USB引导装载程序的应用说明，希望对相关人员有所帮助。-USBXpress shared with a USB boot loader application notes, I hope the relevant personnel to help.