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pre-implemented

  • WP369可扩展式处理平台-各种嵌入式系统的理想解决方案

    WP369可扩展式处理平台-各种嵌入式系统的理想解决方案 :Delivering unrivaled levels of system performance,flexibility, scalability, and integration to developers,Xilinx's architecture for a new Extensible Processing Platform is optimized for system power, cost, and size. Based on ARM's dual-core Cortex™-A9 MPCore processors and Xilinx’s 28 nm programmable logic,the Extensible Processing Platform takes a processor-centric approach by defining a comprehensive processor system implemented with standard design methods. This approach provides Software Developers a familiar programming environment within an optimized, full featured,powerful, yet low-cost, low-power processing platform.

    标签: 369 WP 扩展式 处理平台

    上传时间: 2013-10-18

    上传用户:cursor

  • 扩频通信芯片STEL-2000A的FPGA实现

    针对传统集成电路(ASIC)功能固定、升级困难等缺点,利用FPGA实现了扩频通信芯片STEL-2000A的核心功能。使用ISE提供的DDS IP核实现NCO模块,在下变频模块调用了硬核乘法器并引入CIC滤波器进行低通滤波,给出了DQPSK解调的原理和实现方法,推导出一种简便的引入?仔/4固定相移的实现方法。采用模块化的设计方法使用VHDL语言编写出源程序,在Virtex-II Pro 开发板上成功实现了整个系统。测试结果表明该系统正确实现了STEL-2000A的核心功能。 Abstract:  To overcome drawbacks of ASIC such as fixed functionality and upgrade difficulty, FPGA was used to realize the core functions of STEL-2000A. This paper used the DDS IP core provided by ISE to realize the NCO module, called hard core multiplier and implemented CIC filter in the down converter, described the principle and implementation detail of the demodulation of DQPSK, and derived a simple method to introduce a fixed phase shift of ?仔/4. The VHDL source code was designed by modularity method , and the complete system was successfully implemented on Virtex-II Pro development board. Test results indicate that this system successfully realize the core function of the STEL-2000A.

    标签: STEL 2000 FPGA 扩频通信

    上传时间: 2013-11-19

    上传用户:neu_liyan

  • 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 standards, or from scratch, to support a wide variety of custom protocols.The Wizard produces a wrapper, an example design, and a testbench for rapid integration and verification of the serial interface with your custom function Features• Creates customized HDL wrappers to configureVirtex-5 RocketIO™ GTP transceivers• Users can configure Virtex-5 GTP transceivers toconform to industry standard protocols usingpredefined templates, or tailor the templates forcustom protocols• Included protocol templates provide support for thefollowing specifications: Aurora, CPRI, FibreChannel 1x, Gigabit Ethernet, HD-SDI, OBSAI,OC3, OC12, OC48, PCI Express® (PCIe®), SATA,SATA II, and XAUI• Automatically configures analog settings• Each custom wrapper includes example design, testbench; and both implementation and simulation scripts

    标签: Transceiver Virtex Wizar GTP

    上传时间: 2013-10-20

    上传用户:dave520l

  • 单片机12864液晶时钟显示程序

    12864液晶时钟显示程序 LCD 地址变量 ;**************变量的定义***************** RS             BIT      P2.0            ;LCD数据/命令选择端(H/L) RW             BIT      P2.1          ;LCD读/写选择端(H/L) EP             BIT      P2.2            ;LCD使能控制 PSB        EQU P2.3 RST        EQU P2.5 PRE            BIT      P1.4            ;调整键(K1) ADJ            BIT      P1.5            ;调整键(K2) COMDAT         EQU P0 LED        EQU P0.3 YEAR           DATA      18H            ;年,月,日变量 MONTH          DATA      19H DATE           DATA      1AH WEEK           DATA      1BH HOUR           DATA      1CH            ;时,分,秒,百分之一秒变量 MIN            DATA      1DH SEC            DATA      1EH SEC100         DATA      1FH STATE          DATA      23H LEAP           BIT      STATE.1            ;是否闰年标志1--闰年,0--平年 KEY_S          DATA      24H            ;当前扫描键值 KEY_V          DATA      25H            ;上次扫描键值 DIS_BUF_U0      DATA      26H            ;LCD第一排显示缓冲区 DIS_BUF_U1      DATA      27H DIS_BUF_U2      DATA      28H DIS_BUF_U3      DATA      29H DIS_BUF_U4      DATA      2AH DIS_BUF_U5      DATA      2BH DIS_BUF_U6      DATA      2CH DIS_BUF_U7      DATA      2DH DIS_BUF_U8      DATA      2EH DIS_BUF_U9      DATA      2FH DIS_BUF_U10     DATA      30H DIS_BUF_U11     DATA      31H DIS_BUF_U12     DATA      32H DIS_BUF_U13     DATA      33H DIS_BUF_U14     DATA      34H DIS_BUF_U15     DATA      35H DIS_BUF_L0      DATA      36H            ;LCD第三排显示缓冲区 DIS_BUF_L1      DATA      37H DIS_BUF_L2      DATA      38H DIS_BUF_L3      DATA      39H DIS_BUF_L4      DATA      3AH DIS_BUF_L5      DATA      3BH DIS_BUF_L6      DATA      3CH DIS_BUF_L7      DATA      3DH DIS_BUF_L8      DATA      3EH DIS_BUF_L9      DATA      3FH DIS_BUF_L10     DATA      40H DIS_BUF_L11     DATA      41H DIS_BUF_L12     DATA      42H DIS_BUF_L13     DATA      43H DIS_BUF_L14     DATA      44H DIS_BUF_L15     DATA      45H FLAG            DATA      46H ;1-年,2-月,3-日,4-时,5-分,6-秒,7-退出调整。 DIS_H           DATA      47H DIS_M           DATA      48H DIS_S           DATA      49H

    标签: 12864 单片机 液晶时钟 显示程序

    上传时间: 2013-12-25

    上传用户:wvbxj

  • title=Windows NT/2000/XP 一个RAM-DISK文件系统驱动 memo=SwapFs is a driver for Windows NT/2000/XP that let yo

    title=Windows NT/2000/XP 一个RAM-DISK文件系统驱动 memo=SwapFs is a driver for Windows NT/2000/XP that let you use a Linux swap partition for temporary storage, like a RAM-disk. It is possible to put Windows page file on it. It is implemented as a disk filter driver.

    标签: Windows 2000 RAM-DISK SwapFs

    上传时间: 2015-02-04

    上传用户:ljmwh2000

  • title=Windows NT/2000/XP 一个RAM-DISK文件系统驱动 memo=SwapFs is a driver for Windows NT/2000/XP that let yo

    title=Windows NT/2000/XP 一个RAM-DISK文件系统驱动 memo=SwapFs is a driver for Windows NT/2000/XP that let you use a Linux swap partition for temporary storage, like a RAM-disk. It is possible to put Windows page file on it. It is implemented as a disk filter driver.

    标签: Windows 2000 RAM-DISK SwapFs

    上传时间: 2014-01-25

    上传用户:sdq_123

  • HomerMX is a message exchange service for wireless message formats such as SMS and MMS. HomerMX is a

    HomerMX is a message exchange service for wireless message formats such as SMS and MMS. HomerMX is a Web Services-based (SOAP/WSDL) gateway that is implemented in J2EE and runs under JBoss. It currently supports SMPP and Nokia s MMS.

    标签: HomerMX message exchange wireless

    上传时间: 2014-01-04

    上传用户:huangld

  • Locally weighted polynomial regression LWPR is a popular instance based al gorithm for learning c

    Locally weighted polynomial regression LWPR is a popular instance based al gorithm for learning continuous non linear mappings For more than two or three in puts and for more than a few thousand dat apoints the computational expense of pre dictions is daunting We discuss drawbacks with previous approaches to dealing with this problem

    标签: polynomial regression weighted instance

    上传时间: 2013-11-28

    上传用户:sunjet

  • FPFilter is a sample disk filter driver that demonstrates how a disk failure prediction filter drive

    FPFilter is a sample disk filter driver that demonstrates how a disk failure prediction filter driver could be implemented. A failure prediction filter driver can predict when a disk may fail and notify the disk driver stack of this condition.

    标签: filter disk demonstrates prediction

    上传时间: 2015-03-30

    上传用户:变形金刚

  • The ICA/BSS algorithms are pure mathematical formulas, powerful, but rather mechanical procedures: T

    The ICA/BSS algorithms are pure mathematical formulas, powerful, but rather mechanical procedures: There is not very much left for the user to do after the machinery has been optimally implemented. The successful and efficient use of the ICALAB strongly depends on a priori knowledge, common sense and appropriate use of the preprocessing and postprocessing tools. In other words, it is preprocessing of data and postprocessing of models where expertise is truly ne

    标签: mathematical algorithms mechanical procedures

    上传时间: 2015-03-31

    上传用户:silenthink