在vc环境下基于DriverStdio的usb设备驱动程序实例，单片机实验板usb芯片采用的是PDIUSBD12。-Vc environment in the DriverStdio based device driver usb example, microcontroller chip usb board is PDIUSBD12.

基于mega8系列单片机D12的开发实例【含源码】，含USB SD卡读卡器设计及源码。-Mega8 series of single-chip based on the development of D12 containing source】 【example, USB SD card reader with the design and source code.