主线内核Orange Pi 3（Allwinner H6），带定制DTS、USB3、WiFi、以太网（dwmac_meson8b调节器补丁）、PCI...
Mainline kernel Orange Pi 3 (Allwinner H6) with custom DTS, USB3, WiFi, Ethernet (dwmac_meson8b regulator patch), PCI-E patches. EL2 Hypervisor for quirky PCI-E controller. (2022-11-17, Others, 291867KB, 下载0次)
介绍了基于USB串口多点温度采集系统总体方案。给出了系统的硬件组成，利用AT9S52作为主控制器实现数据上传到PC机进行处理。
The general scheme of multi-point temperature acquisition system based on USB serial port is introduced. The hardware structure of the system is given. At9s52 is used as the main controller to upload data to PC for processing. (2019-11-14, Others, 600KB, 下载0次)
Goertzel算法是DTMF信号检测的核心,它利用二极点的IIR滤波器计算离散傅立叶变换值,快速有效的提取输入信号的频谱
Goertzel algorithm is the core of DTMF signal detection. It calculates the value of discrete Fourier transform by using IIR filter with two poles, and extracts the spectrum of input signal quickly and effectively. (2018-09-27, Others, 9KB, 下载0次)
是,关于ECG信号特征提取采样率为256Hz的ECG数据设计的滤波器
Yes, filters designed for ECG data with 256Hz sampling rate for feature extraction of ECG signals (2018-08-04, Others, 2KB, 下载0次)
本人最近为了实现电脑与Delta VFD-M变频器通讯,特意用VB6 0编了一个Modbus协议通讯软件,不过这只是一个测试 (2018-06-11, Others, 127KB, 下载0次)
http://www.pudn.com/Download/item/id/1528721704132550.html本程序仿真一个从卫星到区域数据中心的下行链路由一组6个载波构成,评估热噪声,交调IM失真,由滤波器造成的码间干扰 (2018-04-19, Others, 83KB, 下载1次)
http://www.pudn.com/Download/item/id/1524125790459134.html
可编程逻辑控制器是种专门为在工业环境下应用而设计的数字运算操作电子系统。它采用一种可编程的存储器，在其内部存储执行逻辑运算、顺序控制、定时、计数和算术运算等操作的指令，通过数字式或模拟式的输入输出来控制各种类型的机械设备或生产过程
A programmable logic controller is a digital operator operating electronic system designed specifically for use in industrial environments. It uses a programmable memory, in its internal storage instructions to perform logical operations, sequential control, timing, counting and arithmetic operations, etc., through the digital or analog input and output to control the various types of mechanical equipment or production process (2017-05-28, Others, 2681KB, 下载7次)
通过数据采集模块计数器对输入光栅尺脉冲信号进行计数，脉冲与光栅尺移动距离一一对应，每个脉冲对应一个栅距，由脉冲数与栅距乘积得到光栅尺直线位移；计数函数采用与数据采集模块对应的usb2k1.dll库函数。
Through the data acquisition module counter input grating pulse signal count, pulse and grating moving distance correspondence, each pulse corresponds to a pitch by multiplying the number of pulses and pitch grating linear displacement counting function and data used acquisition module corresponding usb2k1.dll library functions. (2013-11-12, Others, 70KB, 下载11次)
88W8787_datasheet完整版，是美满公司的wifi，uart，usb等功能的Soc解决方案，内置arm处理器。
The 88W8787_datasheet full version, happy company wifi, uart, usb function Soc solutions, built-in arm processor. (2012-12-31, Others, 1535KB, 下载4次)
USB设备检测工具箱,集成了10个网上流行的USB设备的检测工具，能够对大多数USB接口的U盘、移动硬盘、MP3播放器等设备进行检测或修复。
USB device detection kit, integrated line of 10 popular USB device detection tool that most of the USB interface on the U disk, mobile hard drives, MP3 players and other equipment for testing or repair. (2011-03-13, Others, 4009KB, 下载11次)
业界最流行的usb和RS-232串口转换器的原理图，可以指导相关的设计；PL2303几乎是所有转换器所采用。
The industry' s most popular and RS-232 serial usb converter schematic, can guide the design related PL2303 almost all converters are used. (2010-05-18, Others, 10KB, 下载155次)
U盘测速器，可测U盘类型，速度等等，工具实用
Speed U disk, and can be measured U disk type, speed, etc., tools and practical (2009-06-03, Others, 96KB, 下载12次)
USB的协议介绍：包含USB主机协议、USB集线器协议、USB设备协议。
Introduction of the agreement USB: USB host agreement included, USB hub agreement, USB equipment agreement. (2008-09-25, Others, 7225KB, 下载121次)
显示器，鼠标，键盘的接法，提供了完整的电路图，已经检验过没有问题
Monitor, mouse, keyboard connected to provide a complete circuit has been tested there is no problem (2008-06-28, Others, 7KB, 下载3次)
关于usb-serial驱动程序安装说明：
1、在win98、winme、win2000,windows XP系统中：
先双击driver里hidcominst程序，它没有任何显示。然后再插上USB线，
根据系统提示及可正确安装。
安装完成之后，进入设备管理器，在“端口”一栏中可以看到虚拟的串口设备
SemiTech USB-HID->COM device (COM X ) ，表示设备已经正确安装完成，
可以正常使用。
err (2007-12-28, Others, 62KB, 下载191次)
2410的monitor程序。可初始化USB，下载程序到指定地址，从指定地址开始运行指令，内存访问等等。对学习2410的USB控制器很有帮助
2410 of the monitor procedures. Can be initialized USB, download programs to a specific address, from the specified address operational instructions, memory access and so on. 2410 on learning of the USB controller helpful (2007-11-06, Others, 356KB, 下载28次)
USB技术资料:01 简介 02 术语和缩略词
05 USB数据流模型 07 USB电气特性(缩写)
08 协议层 09 USB设备架构 10 usb主机硬件软件11 集线器规范_1
USB technology information : Introduction 01 02 05 terms and acronyms USB Data Model 07 USB electrical characteristics (the initials) protocol layer 08 09 USB device structure 10 usb mainframe hardware and software compression standard 11 Hub (2006-12-12, Others, 1242KB, 下载10次)
Linux下usb.c源代码分析
在Linux系统中有一个名为“The USB Core”子系统，它有特殊的API支持USB设备和控制器。
usb.c Linux source code analysis of the Linux system is called "The U.S. B Core "system, it has a special API support for USB devices and controllers. (2006-05-23, Others, 6KB, 下载65次)