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[OtherUSB

Description: 摄像头的工作原理大致为:景物通过镜头(LENS)生成的光学图像投射到图像传感器表面上,然后转为电信号,经过A/D(模数转换)转换后变为数字图像信号,再送到数字信号处理芯片(DSP)中加工处理,再通过USB接口传输到电脑中处理,通过显示器就可以看到图像了。 -The working principle of the camera more or less as follows: the scene through the lens (LENS) to generate the optical image projected onto the image sensor surface, and then converted to electrical signals, after A/D (analog-digital conversion) converted into a digital image signal, and then sent to digital signal processing chip (DSP) in the processing, transmission through the USB interface to computer processing, through the display can be seen on the images.
Platform: | Size: 111616 | Author: | Hits:

[SCMUSB

Description: 本书系统地介绍了新型USB总线接口的协议、 工作原理以及驱动程序设计,并以大量篇幅全面、详细地介绍了各种应用场合下的USB设计 ... -This book systematically introduces the new USB bus interface of the agreement, the working principle and driver design, and to a large number of the length of a comprehensive, detailed description of a variety of applications under the USB design ...
Platform: | Size: 3973120 | Author: wwj | Hits:

[USB developUSB2.0

Description: UTMI全称为 USB2.0 Transceiver Macrocell Interface,此协议是针对USB2.0的信号特点进行定义的,分为8位或16位数据接口。目的是为了减少开发商的工作量,缩短产品的设计周期,降低风险。此接口模块主要是处理物理底层的USB协议及信号,可与SIE整合设计成一专用ASIC芯片,也可独立作为PHY的收发器芯片,下以8位接口为例介绍PHY的工作原理及设计特点。 -UTMI called USB2.0 Transceiver Macrocell Interface, this agreement is a signal for USB2.0-defined characteristics, is divided into 8-bit or 16-bit data interface. The purpose is to reduce the workload of developers to shorten product design cycles, reduce risk. This interface module is mainly to deal with the underlying physics of the USB protocol and signaling, can be integrated with the SIE designed a dedicated ASIC chips, can also be independent of the transceiver as a PHY chip, the next eight to PHY interface as an example to introduce the working principle and design features.
Platform: | Size: 210944 | Author: leixueyan | Hits:

[SCMC51

Description: 51单片机的C语言教程,划时代的东西。里面包括的东西很丰富。包括LED,独立按键,矩阵按键,数码管,定时器,外部中断,步进电机,串口通信,USB通信,等所有内容的详细的工作原理,以及所有的详细的C语言代码。是学习单片机的不可缺少的东西。-C-51 microcontroller tutorials, epoch-making thing. Which includes what is very rich. Including LED, independent keys, matrix keys, digital control, timer, external interrupt, step motor, serial communication, USB communication, so all the working principle of detail, and all of the details of the C language code. SCM is essential to learn something.
Platform: | Size: 6777856 | Author: 甄磊 | Hits:

[Software EngineeringHome-Wireless-USB-mouse-and-keyboard

Description: 此无线鼠标/键盘在制作时无须对原有鼠标的外观及内部电路做任何改动,使用起来符合操作习惯,方便可靠,非常适合爱好者自制。其工作原理是利用编译码电路MC145026/MC145027和射频发射/接收模块TDA1808/TDA1809互相配合,可以在10~120m范围内灵活操纵鼠标。-This wireless mouse/keyboard are not required in the production of the original appearance of the mouse and the internal circuitry to make any changes, to use for your operating habits, convenient and reliable, ideal for lovers made. Its working principle is the use of coding and decoding circuit MC145026/MC145027 and RF transmitter/receiver module TDA1808/TDA1809 complement each other in the range of 10 ~ 120m and flexible manipulation of the mouse.
Platform: | Size: 39936 | Author: Yisung | Hits:

[Linux-UnixLinux-driver-development2

Description: 作者:华清远见嵌入式学院。《Linux设备驱动开发详解》(08&09年度畅销榜TOP50)第2章、驱动设计的硬件基础。本章讲解底层驱动工程师必备的硬件基础,给出了嵌入式系统硬件原理及分析方法的全景视图。2.1节讲解微控制器、微处理器、数字信号处理器以及应用于特定领域的处理器各自的特点。2.2节对嵌入式系统中所使用的各类存储器与CPU的接口、应用领域及特点进行了详细讲解。2.3节讲解常见的外设接口与总线的工作方式,包括串口、I2C、USB、以太网接口、ISA、PCI和cPCI等。嵌入式系统硬件电路中经常会使用CPLD和FPGA,2.4节讲解了CPLD和FPGA在电路中的作用。2.5~2.7节讲解实际项目开发过程中硬件分析的方法,包括如何进行原理图分析、时序分析以及如何快速地从芯片手册获取有效信息。2.8节讲解了调试过程中常用仪器、仪表的使用方法,涉及万用表、示波器和逻辑分析仪。-Author: HuaQing vision embedded institute. The Linux device driver development "(08 and 09 sep TOP50) annual list of best-selling chapter 2, drive design hardware foundation. This chapter explaining the bottom drive engineers must hardware foundation, gives the embedded system hardware principle and analysis methods of the panoramic views. Section 2.1 explain micro controller, microprocessor, digital signal processor and the application in particular areas of the processor respective characteristics. Section 2.2 of embedded system used in all kinds of memory and CPU interface, application field and features detailed explanation. Section 2.3 interpretation of common interface and peripherals, including bus way of working serial port, the I2C, USB, the Ethernet interface, ISA, PCI and cPCI, etc. The embedded system hardware circuit we often use CPLD and FPGA, section 2.4 explained CPLD and FPGA in a circuit ?
Platform: | Size: 866304 | Author: 华清远见 | Hits:

[Video Capture摄像头工作原理详解

Description: 摄像头的工作原理大致为:景物通过镜头(LENS)生成的光学图像投射到图像传感器面上,然后转为电信号,经过A/D(模数转换)转换后变为数字图像信号,再送到数字信号处理芯片(DSP)中加工处理,再通过USB接口传输到电脑中处理,通过显示器就可以看到图像了(The working principle of the camera is roughly: the scenery through the lens (LENS) optical image onto the image sensor surface generation, then turn into electrical signals, after A/D (ADC) converted into digital image signal, and then sent to the digital signal processing chip (DSP) in the processing, and then through the USB interface to the in computer processing, you can see the image through the display)
Platform: | Size: 515072 | Author: qqqqqq123 | Hits:

[Driver DevelopUSB应用开发技术大全

Description: 本书系统地介绍了新型USB总线接口的协议、工作原理以及驱动程序设计,并以大量篇幅全面、详细地介绍了各种应用场合下的USB设计实例。(This book systematically introduces the protocol, working principle and driver design of the new type of USB bus interface, and gives a comprehensive and detailed introduction of USB design examples in various applications.)
Platform: | Size: 50530304 | Author: VKuaiLe | Hits:

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