这个是个人心得，在学习usb的过程中遇到的问题，有选择的摘录下来，适合学习者。-This is a personal experience in learning the process of usb problems have a choice excerpt from, suitable for learners.

ICD2-USB全套资料,由我自己开发的心得体会，欢迎各位朋友下载交流。-ICD2-USB full set of information, developed by my own feelings and experiences, to welcome our friends to download exchange.