V551 USB Motorola drivers

这个接口卡程序负责采集低频音频信号，USB控制芯片采用AN2131QC。软件包括3个模块：Keil51编写芯片固件程序，vc++编写USB驱动程序和用户程序-the interface card collection procedures for low-frequency audio signals, control chips using USB Peripheral. The software includes three modules : the preparation Keil51 chip firmware and USB drives vc preparation procedures and user program

用VC++实现与USB驱动程序的通信-with VC and USB driver communications

横好用请认真阅读一个读写文本文件的类，基本 ・现在USB设备却很多，因此对U ・ -Horizontal-to-use, please carefully read a text file reading and writing classes, basic now but a lot of USB devices, so U

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.

usb口通讯 很实用的哦，速度快，稳定性强-usb mouth communication is very useful, oh, fast and strong stability

对USB的2.0标准和上位机下位机通讯标准，各部分的结构组成和实现情况进行整理。当时做项目涉及到这部分的知识，所以看了大量的资料，这部分的东西蛮多-For USB 2.0 standards and lower PC communication standards, the various parts of the structure of the composition and finishing realize the situation. At that time, to do projects related to this part of the knowledge, so read a lot of information, this part of the East and West蛮多

USB2.0的通信协议，详解，好东西，来自网络，非原创 -USB2.0 communication protocol, detailed, good things, from the network, non-original

window的驱动编写入门，以及usb的相关资料-the preparation of entry-window of the driver, as well as relevant information on usb

USB与USB互传文件的软件，能够实现PC机与另外一台PC机的文件传输-USB and USB to each other document software, can be achieved with another PC-a PC-File Transfer

这个程序用180行C代码就能够读取FAT16文件系统U盘的根目录,可以看到根目录下的文件名,并可显示首文件内容,不过,该程序很不严谨,也没有任何错误处理,对U盘兼容性较差,只是用于简单试验,作为参考.这个程序可以支持WINDOWS按FAT16格式化的U盘,因为程序精简,所以只兼容超过50%以上的U盘品牌,如果换成CH375A芯片则兼容性可提高到85%,当然,如果使用WCH公司的子程序库或者正式版本的C源程序兼容性更好-this procedure with 180 OK C code can read FAT16 file system drives the root directory, we can see the root directory under the file name, would show the first document, but the very stringent procedures, and there is no error handling, the U-poor compatibility, but for the simple the pilot, as a reference. this procedure can be supported by Windows FAT16 formatted U disk, because the procedure is streamlined and therefore only compatible with more than 50% of the U-brand, if chips were replaced CH375A compatibility can be increased to 85%, if the company"s use of WCH Subroutine Library or an official version of the C source better compatibility