DVR

USB2.0频谱分析仪是一种高分辨率的动态信号谱分析系统，既可用于中低频低通信号的分析和处理（最高频率不超过20MHZ），也可用于频率很高的带通信号的分析和处理。-USB2.0 spectrum analyzer is a high-resolution dynamic signal spectrum analysis system, which can be used in low frequency communication, analysis and processing (not more than the maximum frequency of 20MHZ), can also be used for high frequency communications with the issue of the analysis and processing.

HID规范和一个基于CYPRESS FX2 的例子，自己做的哦！很有参考价值！-norms and a HID-based CYPRESS FX2 example, do for myself! Great reference value!

关于usb的源码ScanUSB-on usb the source ScanUSB

samsung s3c2440a usb monitoring program dnw

用VHDL语言编写的代码，以供大家学习和交流，方便大家学习！-prepared using VHDL code for all to study and exchange to facilitate learning!

usb device test Speed

对VB的USB接口虚拟示波器的设计,高速的传输效率,界面的可操作性强-VB of the USB interface on the virtual oscilloscope design, high-speed transmission efficiency, the interface may be operable

这是来自微软的usb2.0开发包2.0，里面有一些usb开发的参考实例源代码，和相关技术文档。-this is from Microsoft"s USB 2.0 Development Kit 2.0, there are some usb development of a reference source code examples, and related technical documentation.

使用COM接口给手机发短信，使用前需要用线把手机接入USB或COM接口-COM interface to the phone using text messaging, the use of pre-need phone lines to access USB or COM interface

USBTrace 测试USB必不可少的工具-USBTrace essential tool for testing USB