usb通用的驱动程序，特别好用

CH375 USB接口协议芯片ARM平台下的实例程序-CH375 USB interface chip ARM platform agreement under the procedure instance

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规范协议1.1的翻译稿-USB specification 1.1 of the Agreement on a translation

u盘文件系统，pdf格式，不知大家看到没有。FAT格式，可以参考哦-u-file system, pdf format, I wonder if we do not see. FAT format, they can refer to, oh

机器人处理中使用USB摄像机的例子程序.-handling robot using USB camera examples procedures.

基于philip的arm7芯片214x的usbdma应用的上位机程序，驱动编好usb的程序，就可直接调用此程序-214x chip based on philip s arm7 the usbdma applications PC, driver usb to compiling the program, you can call this procedure directly

[资料]USB1.1和USB2.0协议规范.PDF格式,更多资料请来信索取.-[information] USB 1.1 and USB 2.0 protocol specification. PDF format, requested more information from the letter.

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 test a post-mortem 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

一个简单的usb键盘驱动-a simple USB Keyboard Driver

usbhost 开发码-usbhost development code