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  • XAPP708 -133MHz PCI-X到128MB DDR小型DIMM存储器桥

      The Virtex-4 features, such as the programmable IDELAY and built-in FIFO support, simplifythe bridging of a high-speed, PCI-X core to large amounts of DDR-SDRAM memory. Onechallenge is meeting the PCI-X target initial latency specification. PCI-X Protocol Addendum tothe PCI Local Bus Spec ...

    /dl/40099.html

    标签: PCI-X XAPP DIMM 708

    上传时间: 2013-11-24

    上传用户:18707733937

  • 基于FPGA的光纤光栅解调系统的研究

     波长信号的解调是实现光纤光栅传感网络的关键,基于现有的光纤光栅传感器解调方法,提出一种基于FPGA的双匹配光纤光栅解调方法,此系统是一种高速率、高精度、低成本的解调系统,并且通过引入双匹配光栅有效地克服了双值问题同时扩大了检测范围。分析了光纤光栅的测温原理并给出了该方案软硬件设计,综合考虑系统的解 ...

    /dl/40240.html

    标签: FPGA 光纤光栅 解调系统

    上传时间: 2013-10-10

    上传用户:zxc23456789

  • Virtex-5 GTP Transceiver Wizar

    The LogiCORE™ GTP Wizard automates the task of creating HDL wrappers to configure the high-speed serial GTP transceivers in Virtex™-5 LXT and SXT devices. The menu-driven interface allows one or more GTP transceivers to be configured using pre-definedtemplates for popular industry standa ...

    /dl/40376.html

    标签: Transceiver Virtex Wizar GTP

    上传时间: 2013-10-20

    上传用户:dave520l

  • pci e PCB设计规范

    This document provides practical, common guidelines for incorporating PCI Express interconnect layouts onto Printed Circuit Boards (PCB) ranging from 4-layer desktop baseboard designs to 10- layer or more server baseboard designs. Guidelines and constraints in this document are intended for use on b ...

    /dl/40445.html

    标签: pci PCB 设计规范

    上传时间: 2014-01-24

    上传用户:s363994250

  • Protel使用中的一些问题和解答

    Q01、如何使一条走线至两个不同位置零件的距离相同?  您可先在Design/Rule/High Speed/Matched Net Lengths的规则中来新增规则设定,最 后再用Tools/EqualizeNet Lengths 来等长化即可。   Q02、在SCHLIB中造一零件其PIN的属性,如何决定是Passive, Input, I/O, Hi- Z, ...

    /dl/40485.html

    标签: Protel

    上传时间: 2013-11-07

    上传用户:tangsiyun

  • 基于EKF的异步电机直接转矩控制系统

    为了提高直接转矩控制(DTC)系统定子磁链估计精度,降低电流、电压测量的随机误差,提出了一种基于扩展卡尔曼滤波(EKF)实现异步电机转子位置和速度估计的方法。扩展卡尔曼滤波器是建立在基于旋转坐标系下由定子电流、电压、转子转速和其它电机参量所构成的电机模型上,将定子电流、定子磁链、转速和转子角位置作为状态变 ...

    /dl/41385.html

    标签: EKF 异步电机 直接转矩 控制系统

    上传时间: 2015-01-02

    上传用户:qingdou

  • XAPP713 -Virtex-4 RocketIO误码率测试器

      The data plane of the reference design consists of a configurable multi-channel XBERT modulethat generates and checks high-speed serial data transmitted and received by the MGTs. Eachchannel in the XBERT module consists of two MGTs (MGTA and MGTB), which physicallyoccupy one MGT tile in t ...

    /dl/41859.html

    标签: RocketIO Virtex XAPP 713

    上传时间: 2013-12-25

    上传用户:jkhjkh1982

  • SL811开发资料_包含源程序_电路图_芯片资料

    SL811开发资料_包含源程序_电路图_芯片资料:SL811HS Embedded USB Host/Slave Controller.The SL811HS is an Embedded USB Host/Slave Controller capable of communicate with either full-speed or low-speed USB peripherals. The SL811HS can interface to devices such as microprocessors, microcontrollers, DSPs, o ...

    /dl/42428.html

    标签: 811 SL 开发资料 源程序

    上传时间: 2013-12-22

    上传用户:a82531317

  • This book introduces embedded systems to C and C++ programmers. Topics include testing memory device

    This book introduces embedded systems to C and C++ programmers. Topics include testing memory devices, writing and erasing Flash memory, verifying nonvolatile memory contents, controlling on-chip peripherals, device driver design and implementation, optimizing embedded code for size and speed, and m ...

    /dl/101499.html

    标签: programmers introduces embedded include

    上传时间: 2013-12-10

    上传用户:shizhanincc

  • VC技术内幕第五版_English.The 6.0 release of Visual C++ shows Microsoft s continued focus on Internet techno

    VC技术内幕第五版_English.The 6.0 release of Visual C++ shows Microsoft s continued focus on Internet technologies and COM, which are key components of the new Windows Distributed interNet Application Architecture (DNA). In addition to supporting these platform initiatives, Visual C++ 6.0 also adds a ...

    /dl/138415.html

    标签: Microsoft continued Internet English

    上传时间: 2013-12-08

    上传用户:lepoke