USB经典教程：http://usb.cepark.com/html/6/category-catid-6.html
http://www.obdev.at/products/vusb/index.html
http://www.nongnu.org/avr-libc/user-manual/install_tools.html
http://www.amobbs.com/thread-3251579-1-1.html
USB经典教程：http://usb.cepark.com/html/6/category-catid-6.html
http://www.obdev.at/products/vusb/index.html
http://www.nongnu.org/avr-libc/user-manual/install_tools.html
http://www.amobbs.com/thread-3251579-1-1.html