随着混沌理论应用于产生伪随机序列的发展,用现场可编程逻辑门阵列实现了基于TD—ERCS混沌的伪随机序列发生器.为了便于硬件实现并减少硬件占用资源.对原算法(即基于TD—ERCS构造伪随机序列发生器的算法)进行了适当改进,密钥空间缩减到2⋯.设计采用双精度浮点运算,选用Cyclone系列的EPIC20F400芯片。完成了CPRSG的系统仿真实验.系统的硬件电路占用17716个逻辑单元,占芯片资源88%,工作频率50 MHz,EPRS产生速率10 Mbps.
上传时间: 2013-10-28
上传用户:crazyer
摘要:本文简要介绍了Xilinx最新的EDK9.1i和ISE9.1i等工具的设计使用流程,最终在采用65nm工艺级别的Xilinx Virtex-5 开发板ML505 上同时设计实现了支持TCP/IP 协议的10M/100M/1000M 的三态以太网和千兆光以太网的SOPC 系统,并对涉及的关键技术进行了说明。关键词:FPGA;EDK;SOPC;嵌入式开发;EMAC;MicroBlaze 本研究采用业界最新的Xilinx 65ns工艺级别的Virtex-5LXT FPGA 高级开发平台,满足了对于建造具有更高性能、更高密度、更低功耗和更低成本的可编程片上系统的需求。Virtex-5以太网媒体接入控制器(EMAC)模块提供了专用的以太网功能,它和10/100/1000Base-T外部物理层芯片或RocketIOGTP收发器、SelectIO技术相结合,能够分别实现10M/100M/1000M的三态以太网和千兆光以太网的SOPC 系统。
上传时间: 2013-10-14
上传用户:sun_pro12580
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: 2013-10-23
上传用户:leyesome
RS232-1100-V2资料集合
上传时间: 2013-11-21
上传用户:zxh122
今年年底北斗卫星导航系统已基本完成地球静止轨道卫星和倾斜地球同步轨道卫星的建设工作。目前,在中国及周边地区北斗导航系统已经可以单独提供定位服务。本文对GPS/北斗组合系统以及GPS北斗单独系统在上海的定位性能进行了评估,分析了在不同模式下的可视卫星数量、几何精度因子、定位的稳定性和准确性。结果表明组合定位进一步提高了单独系统模式下的定位性能,北斗系统目前在水平方向上的定位精度已经达到10米级。
上传时间: 2013-10-20
上传用户:rishian
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
上传时间: 2013-10-29
上传用户:taozhihua1314
必联wifi模块的规格
上传时间: 2013-10-10
上传用户:BIBI
MARVELL 公司的 Integrated 10/100/1000Mbps Energy Efficient Ethernet Transceiver.
上传时间: 2014-12-29
上传用户:18862121743
最新真题
上传时间: 2014-12-29
上传用户:完玛才让
The Tri-Mode Ethernet MAC (TEMAC) UltraController-II module is a minimal footprint,embedded network processing engine based on the PowerPC™ 405 (PPC405) processor coreand the TEMAC core embedded within a Virtex™-4 FX Platform FPGA. The TEMACUltraController-II module connects to an external PHY through Gigabit Media IndependentInterface (GMII) and Management Data Input/Output (MDIO) interfaces and supports tri-mode(10/100/1000 Mb/s) Ethernet. Software running from the processor cache reads and writesthrough an On-Chip Memory (OCM) interface to two FIFOs that act as buffers between thedifferent clock domains of the PPC405 OCM and the TEMAC.
上传时间: 2013-10-26
上传用户:yuzsu