Design and Implementation of Embedded Web Server Based on MicroBlaze

摘要:随着网络的日益普及 ,将嵌入式系统接入网络的想法也变得更加现实。介绍一种基于 MicroBlaze 处理器的嵌入式 Web服务器的设计方法。系统在 Virtex4 系列LX25 芯片上 ,采用软核处理器 MicroBlaze配置核心处理器。MicroBlaze软内核是一种针对 Xilinx的 FPGA 器件而优化的功能强大的标准 32 位 RISC处理器。网络协议采用 Xilnet ,这是 Xilinx 公司专门针对 Xilinx嵌入式系统应用而设计的网络通信协议 ,接口芯片使用 LAN91C111。基MicroBlaze 的嵌入式 Web 服务器能够达到预期的效果 ,用户可以通过 IE浏览器浏览存储在 DDR SDRAM 芯片中的网页 ,由于 CPU 本身是以软核的方式实现 ,其功能可根据需要进行定制 ,非常灵活。该 Web服务器基于 HTTP协议 ,采用 TCP/ IP套接字编程技术实现 ,能够实现对工业现场的数据采集、 远程监控以及信息的交互。 Abstract :With the development of Internet ,the idea of merging embedded system into the network becomes more reliable.This paper int roduces a design way of embedded Web server that based on the MicroBlaze. The system used sof t core MicroBlaze to configure it on the LX25 chip. MicroBlaze is a standard RISC processor which has st ronger optimized function and is specific towards Xilinx FPGA devices. Net protocol adopted Xilnet which is designed for Xilinx embedded system′ s application. Interface chip is LAN91C111. The system described in this article can reach the expected affect and users can browse the net in the SDRAM through IE. Due to the sof t core implement way ,it can be customized according to your own need and very flexible. The web server is implemented by TCP/ IP socket program technology and based on HTTP protocol . It can complete data acquisition ,remote surveillance and imformation interaction

FPGA的高速多通道数据采集控制器IP核设计

介绍基于fPgA嵌入式系统的多通道高速数据采集模块控制器的IP核设计。采用TI公司的6通道同步采集A/d转换器件(AdS8364),针对该器件使用硬件描述语言设计IP核,实现对采集数据的处理,同时设计了IP核与嵌入式系统的接口。在XIlInX公司的ISE开发工具中,利用fPgA器件中的硬fIfO控制器辅助设计IP核,利用嵌入式开发工具Edk建立fPgA嵌入式系统,并添加和修改了用户自定义IP核,通过仿真验证了该方法的实效性

NETFPGA-BASED DATA PACKET GENERATOR IMPLEMENTATION

数据包发生器广泛地应用于各种网络环境中,对于交换机、路由器以及网络本身的测试与分析有着重要的作用。针对大多数基于软件的数据包发生器不能达到千兆线速度发包的问题,详细介绍一种基于nETfPgA平台的硬件数据包发生器,实现4端口的千兆线速度发包,并可通过软件配置每个端口的数据包发送速度、数目及延时等。Data packet generator is widely used in various network environments.It plays an important role in testing and analysing the performance of switches,routers and networks.To address the problem that most software-based data packet generators cannot send the packet at gigabit speed,in this article we describe in detail a hardware data packet generator based on NetFpga platform.It realises four-port package sending at gigabit speed,and can also configure the sending speed,number and delay of the package at each port

Design of Baosteel Fivecold-Rolled Factory’s Power Quality Inspection System

随着非线性负荷及冲击性负荷的增加,电能质量严重超标,正在大范围地污染供电环境,危及电网及其供电设备的安全稳定运行,降低电力企业的经济效益,因此有必要对电能质量进行实时在线监测,及时了解电网电能质量水平,以便采取措施改善﹑提高供电质量。作者设计了宝钢五冷轧厂电能质量监测系统,针对目前存在的高次谐波问题,对电能质量参数进行长期监测和分析,文章着重介绍了该系统的原理﹑结构﹑功能设计及系统的实现

Transplant U-BOOT to S3c2410 Board

摘要:基于Samsung公司的板子S3c2410,实现U-Boot的移植 ,并成功启动内核和加载文件系统。首先了解移植环境 ,本文主要是针对最小硬件系统的移植;分析 U - Boot的启动原理和启动流程,深刻剖析U-Boot阶段1和阶段2的运行过程;在通用的U-Boot基础上修改其硬件配置,对应于S3c2410板子上的硬件;编译U-Boot,用JTAG口将U-Boot烧写到板子;最后利用U-Boot命令下载 ,烧写内核和文件系统 ,复位后成功启动内核 ,这一步同时证实了所移植的U-Boot的正确性。 Abstract:Abstract In this paper, the transplantati on of U - Bootwhich is based on Samsung Company’s board S3C2410 is implemented,moreover it leads the system to startup the kernel and load the Ramdisk filesystem successfully1First, come to know the environment of transplantation, this papermainly relates to the smallest hardware system Analyze the startup theory and flow of the U-Boot, dissectits operation process of the stage1 and stage2.Modify the hardware configurati on based on the universalU - Boot - 11116 according tothe hardwares that are on the board S3C24101Compile the U-Boot and then download the U-Boot to the board by JTAG1Lastly, utilize the U-Boot commands to download the linux kernel and filesystem to flash, then reset and it can startup kernel successfully.this also indicates that the U-Boot is accurate

同步氢化/热缩聚法制备中间相沥青的工艺研究

系统地研究了在氢化剂量固定情况下,反应温度与时间对同步氢化/热缩聚法所制得的中间相沥青(MP)性质的影响,并制得了可纺MP。研究表明反应时间同为4h时,MP的软化点和不溶分含量随反应温度的提高而升高;偏光结果显示,低温产物为中间相小球和各向同性基质的混合物,高温产物为连续中间相。反应温度同为410℃时,MP软化点和不溶分含量均随反应时间的延长而显著提高,经历了从中间相小球到小球发生融并,最后形成了马赛克织构的中间相。纺丝性能测试表明,反应温度为410或420℃,反应4h制得的中间相沥青,可以熔融纺丝,经氧化和碳化后制得两组碳纤维

菊芋块茎制高果糖浆的研究

通过菊芋干片与菊粉提取液的制备、菊粉酶解、精制生产高果糖浆，菊粉酶解的适宜条件为：底物糖浓度12%，加酶量26u/g糖，PH5.0-5.5，最适温度为50℃，酶解6H，底物降解率可达98.5%。菊粉酶解液经活性炭脱色、离子交换树脂处理、减压浓缩等步骤，制得糖浆的固形物含量为73.8%，果糖含量（占固形物）为83.6%，同时对糖浆的dE值、色度、灰分、微生物含量等指标进行了测定

Composition of Communication Protocol and Data Package of Centralized Monitoring System for Single Loop Controllers

介绍了由 ＭＩＣＲＯ７６１单回路调节器作下位机和上位计算机组成多回路集中监控系统所采用的通讯协议、如何实现从上位机向作为下位机的调节器发送请求报文和接受控制器的响应报文以及报文的组成和处理．编程环境为ＷＩＮ９８，编程工具为ＶｉｓｕａｌＣ＋＋５．０．In this paper, communication protocol, data package processing and programming was introduced for centralized monitoring system, which was composed of personal computer and Micro76 1 Single Loop Controllers

Research on the characteristic of nagetive friction of Two-Phase Varying Stiffness Piled Raft Foundation

随着国民经济快速发展，在城市里不断出现各类高层乃至超高层建筑，而桩基础由于具有高承载力及低沉降等优势，受到人们的广泛青睐。之前，林树枝教授等人，提出“两阶段变刚度桩筏基础”新技术，在桩顶处设置变形装置，调节桩基础的整体刚度，充分发挥利用了浅层地基土的承载力，同时能减小差异沉降，带来极大的经济效益。然而，由于自身机制原因，施工加载中存在较大负摩阻力，若忽视其影响将影响结构安全。本文采用理论计算、数值模拟并结合工程实例，对两阶段变刚度复合桩基的负摩阻力问题进行了研究。 本文主要内容有： （1）负摩阻力计算理论 简述桩基负摩阻力计算理论发展沿革，并介绍研究两阶段变刚度桩筏基础负摩阻力特性的实际...With the rapid development of the national economy, all kinds of high and super high-rise buildings appear in the city.Because of the high bearing capacity and small settlement ,pile foundation is widely recognized. At the beginning of this century, Professor Lin proposed Two-phase varying stiffness piled raft foundation, a new technology which uses the deformation-coordinating device at the top o...学位：工学硕士院系专业：建筑与土木工程学院_结构工程学号：2532013115180

Design and Implementation of Embedded Web Server Based on MicroBlaze

随着网络的日益普及,将嵌入式系统接入网络的想法也变得更加现实。介绍一种基于MicroBlaze处理器的嵌入式Web服务器的设计方法。系统在Virtex4系列LX25芯片上,采用软核处理器MicroBlaze配置核心处理器。MicroBlaze软内核是一种针对Xilinx的FPGA器件而优化的功能强大的标准32位RISC处理器。网络协议采用Xilnet,这是Xilinx公司专门针对Xilinx嵌入式系统应用而设计的网络通信协议,接口芯片使用LAN91C111。基于MicroBlaze的嵌入式Web服务器能够达到预期的效果,用户可以通过IE浏览器浏览存储在DDR SDRAM芯片中的网页,由于CPU本身是以软核的方式实现,其功能可根据需要进行定制,非常灵活。该Web服务器基于HTTP协议,采用TCP/IP套接字编程技术实现,能够实现对工业现场的数据采集、远程监控以及信息的交互。With the development of Internet,the idea of merging embedded system into the network becomes more reliable.This paper introduces a design way of embedded Web server that based on the MicroBlaze.The system used soft core MicroBlaze to configure it on the LX25 chip.MicroBlaze is a standard RISC processor which has stronger optimized function and is specific towards Xilinx FPGA devices.Net protocol adopted Xilnet which is designed for Xilinx embedded system′s application.Interface chip is LAN91C111.The system described in this article can reach the expected affect and users can browse the net in the SDRAM through IE.Due to the soft core implement way,it can be customized according to your own need and very flexible.The web server is implemented by TCP/IP socket program technology and based on HTTP protocol.It can complete data acquisition,remote surveillance and imformation interaction