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  • Employing a Single-Chip Transceiver in Femtocell Base-Station Applications

    Abstract: This application note discusses the development and deployment of 3G cellular femtocell base stations. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base stations as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."

    標(biāo)簽: Base-Station Applications Single-Chip Transceiver

    上傳時(shí)間: 2013-11-07

    上傳用戶:songrui

  • XAPP806 -決定DDR反饋時(shí)鐘的最佳DCM相移

    This application note describes how to build a system that can be used for determining theoptimal phase shift for a Double Data Rate (DDR) memory feedback clock. In this system, theDDR memory is controlled by a controller that attaches to either the OPB or PLB and is used inan embedded microprocessor application. This reference system also uses a DCM that isconfigured so that the phase of its output clock can be changed while the system is running anda GPIO core that controls that phase shift. The GPIO output is controlled by a softwareapplication that can be run on a PowerPC® 405 or Microblaze™ microprocessor.

    標(biāo)簽: XAPP 806 DDR DCM

    上傳時(shí)間: 2013-10-15

    上傳用戶:euroford

  • 帶有SerDes接口的PLB千兆位級(jí)以太網(wǎng)MAC

    This application note describes a reference system which illustrates how to build an embeddedPowerPC® system using the Xilinx 1-Gigabit Ethernet Media Access Controller processor core.This system has the PLB_Gemac configured to use Scatter/Gather Direct Memory Access andthe Serializer/Deserializer (SerDes) interface. This application note describes how to set up thespecific clocking structure required for the SerDes interface and the constraints to be added tothe UCF file. This reference system is complete with a standalone software application to testsome of the main features of this core, including access to registers, DMA capabilities, transmitand receive in loopback mode. This reference system is targeted for the ML300 evaluationboard.

    標(biāo)簽: SerDes PLB MAC 接口

    上傳時(shí)間: 2013-11-01

    上傳用戶:truth12

  • PICMG_COM_0_R2_0COMe規(guī)范--原文資料

    A Computer-On-Module, or COM, is a Module with all components necessary for a bootable host computer, packaged as a super component. A COM requires a Carrier Board to bring out I/O and to power up. COMs are used to build single board computer solutions and offer OEMs fast time-to-market with reduced development cost. Like integrated circuits, they provide OEMs with significant freedom in meeting form-fit-function requirements. For all these reasons the COM methodology has gained much popularity with OEMs in the embedded industry. COM Express® is an open industry standard for Computer-On-Modules. It is designed to be future proof and to provide a smooth transition path from legacy parallel interfaces to LVDS (Low Voltage Differential Signaling) interfaces. These include the PCI bus and parallel ATA on the one hand and PCI Express and Serial ATA on the other hand.

    標(biāo)簽: PICMG_COM COMe

    上傳時(shí)間: 2013-11-05

    上傳用戶:Wwill

  • 1-Wire總線主機(jī)

    Abstract: Communication with 1-Wire slave devices requires a 1-Wire master. There are numerous ways to build a 1-Wire master (see reference design 4206, "Choosing the Right 1-Wire Master for Embedded Applications"). Thisdocument describes the DS1WM, a synthesizable 1-Wire master that can be implemented in an application-specificintegrated circuit (ASIC) or field-programmable gate array (FPGA).

    標(biāo)簽: Wire 總線 主機(jī)

    上傳時(shí)間: 2014-12-22

    上傳用戶:xanxuan

  • LabVIEW for Everyone(經(jīng)典英文書(shū)籍)

    The #1 Step-by-Step Guide to labviewNow Completely Updated for labview 8!   Master labview 8 with the industry's friendliest, most intuitive tutorial: labview for Everyone, Third Edition. Top labview experts Jeffrey Travis and Jim Kring teach labview the easy way: through carefully explained, step-by-step examples that give you reusable code for your own projects!   This brand-new Third Edition has been fully revamped and expanded to reflect new features and techniques introduced in labview 8. You'll find two new chapters, plus dozens of new topics, including Project Explorer, AutoTool, XML, event-driven programming, error handling, regular expressions, polymorphic VIs, timed structures, advanced reporting, and much more. Certified labview Developer (CLD) candidates will find callouts linking to key objectives on NI's newest exam, making this book a more valuable study tool than ever. Not just what to d why to do it! Use labview to build your own virtual workbench Master labview's foundations: wiring, creating, editing, and debugging VIs; using controls and indicators; working with data structures; and much more Learn the "art" and best practices of effective labview development NEW: Streamline development with labview Express VIs NEW: Acquire data with NI-DAQmx and the labview DAQmx VIs NEW: Discover design patterns for error handling, control structures, state machines, queued messaging, and more NEW: Create sophisticated user interfaces with tree and tab controls, drag and drop, subpanels, and more Whatever your application, whatever your role, whether you've used labview or not, labview for Everyone, Third Edition is the fastest, easiest way to get the results you're after!

    標(biāo)簽: Everyone LabVIEW for 英文

    上傳時(shí)間: 2013-10-14

    上傳用戶:shawvi

  • labview教程ppt

    一篇長(zhǎng)90頁(yè)的PPT和10個(gè)左右的示例源程序,對(duì)于自學(xué)能力強(qiáng)且有一定計(jì)算機(jī)編程基礎(chǔ)的人來(lái)說(shuō)上手還是很快的。   •Understand the components of a Virtual Instrument •Introduce labview and common labview functions •Build a simple data acquisition application •Create a subroutine in labview

    標(biāo)簽: labview 教程

    上傳時(shí)間: 2013-11-21

    上傳用戶:yeling1919

  • 戶外使用的無(wú)線藍(lán)牙立體聲音頻系統(tǒng)

    Abstract: When people want portable music, they usually rely on battery-powered audio devices. With a bit of engineeringblood (or curiosity) running in your veins, it is not difficult to build a wireless Bluetooth® stereo audio system that can becontrolled with any device that has a Bluetooth connection and a music player

    標(biāo)簽: 無(wú)線藍(lán)牙 立體聲 音頻系統(tǒng)

    上傳時(shí)間: 2013-10-09

    上傳用戶:天空說(shuō)我在

  • Xilinx UltraScale:新一代架構(gòu)滿足您的新一代架構(gòu)需求(EN)

      中文版詳情瀏覽:http://www.elecfans.com/emb/fpga/20130715324029.html   Xilinx UltraScale:The Next-Generation Architecture for Your Next-Generation Architecture    The Xilinx® UltraScale™ architecture delivers unprecedented levels of integration and capability with ASIC-class system- level performance for the most demanding applications.   The UltraScale architecture is the industr y's f irst application of leading-edge ASIC architectural enhancements in an All Programmable architecture that scales from 20 nm planar through 16 nm FinFET technologies and beyond, in addition to scaling from monolithic through 3D ICs. Through analytical co-optimization with the X ilinx V ivado® Design Suite, the UltraScale architecture provides massive routing capacity while intelligently resolving typical bottlenecks in ways never before possible. This design synergy achieves greater than 90% utilization with no performance degradation.   Some of the UltraScale architecture breakthroughs include:   • Strategic placement (virtually anywhere on the die) of ASIC-like system clocks, reducing clock skew by up to 50%    • Latency-producing pipelining is virtually unnecessary in systems with massively parallel bus architecture, increasing system speed and capability   • Potential timing-closure problems and interconnect bottlenecks are eliminated, even in systems requiring 90% or more resource utilization   • 3D IC integration makes it possible to build larger devices one process generation ahead of the current industr y standard    • Greatly increased system performance, including multi-gigabit serial transceivers, I/O, and memor y bandwidth is available within even smaller system power budgets   • Greatly enhanced DSP and packet handling   The Xilinx UltraScale architecture opens up whole new dimensions for designers of ultra-high-capacity solutions.

    標(biāo)簽: UltraScale Xilinx 架構(gòu)

    上傳時(shí)間: 2013-11-21

    上傳用戶:wxqman

  • Nios II軟件構(gòu)建工具入門(mén)

    Nios II軟件構(gòu)建工具入門(mén) The Nios® II Software Build Tools (SBT) allows you to construct a wide variety of complex embedded software systems using a command-line interface. From this interface, you can execute Software Built Tools command utilities, and use scripts other tools) to combine the command utilities in many useful ways. This chapter introduces you to project creation with the SBT at the command line This chapter includes the following sections: ■ “Advantages of Command-Line Software Development” ■ “Outline of the Nios II SBT Command-Line Interface” ■ “Getting Started in the SBT Command Line” ■ “Software Build Tools Scripting Basics” on page 3–8

    標(biāo)簽: Nios 軟件

    上傳時(shí)間: 2013-11-15

    上傳用戶:nanxia

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