真正完整，并且编译得通的代码。用vc访问hid型usb设备，输入自己的VID和PID就能实现对hid型usb设备的读写和控制 它包含单片机固件源代码和PC端的VC源代码；虽然PUDN上有其他会员提供类似的vc代码，但我发现那些代码都存在bug，只有我这个代码是唯一完整的、可以编译通过的代码。-Truly complete, and compile a pass code. Hid type with vc visit usb device, enter their own VID and PID

检测USB的PID与VID码，非常好用，代码在VC6下编译通过。-Detection of USB in the PID and VID code, very easy to use, the code under VC6 compile.

圈圈写的基于VC6.0的串口通讯的小工具，代码中有详细的介绍，修改vip，pid后即可实现自己设备的通讯-VC6.0 circle was based serial communication gadgets, the code is described in detail, modify vip, you can achieve your own communications equipment after pid