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CAN-Ethernet

CAN-Ethernet是一款电子器件,中国代理商:广州虹科电子科技有限公司。
  • 基于CAN总线的智能仪表远程传输系统的研究与实现.rar

    随着经济的发展、生产管理自动化水平的不断提高,将传统的仪表、现场总线和以太网技术相结合,研制带有总线接口的现场智能检测仪表及远程网络传输系统成为业界关注的热点。本文对困内外该课题的研究现状进行了详细分析,提出了一种基于CAN总线的智能仪表远程传输系统的设计方案。 本文首先分析了课题的关键问题所在,并阐述了系统的总体设计方案。接着对系统的软硬件设计进行了详细的论述。在设计中选用C8051F040单片机作为现场智能检测仪表的核心处理器,设计了信号调理电路、CAN总线接口电路和人机交互接口等,实现了对水体环境中温度、pH、盐度、浊度等常规参数的检测,以此仪表作为CAN总线节点并通过CAN接口向总线发送检测到的参数数据。还设计了基于ARM7处理器LPC2292嵌入式CAN—Ethernet网关。在网关硬件平台设计完成的基础上移植了嵌入式实时操作系统μC/OS—Ⅱ,在此基础上实现了一个经过裁剪的适合嵌入式系统应用TCP/IP协议栈,并实现了嵌入式Web服务器,以此网关作为CAN总线主节点接收总线上的数据并保存在网关中。这样,监控中心管理人员通过IE浏览器访问嵌入式CAN—Ethernet网关的Web服务器,就能够在浏览器的Web页面上动态显示保存在网关中的智能仪表检测的实时数据。 本系统在实际测试中运行稳定可靠,通过对运行结果和性能的分析可知,将工业以太网和CAN总线技术与智能仪表结合起来,将现场智能设备的各种信息传到远离现场的控制室,可以实现某些特殊或危险的无人值守场合的监控,使生产中的事故降到最低点,同时易于设备的后期维护,能给企业带来可观的经济效益。同时本系统是一个全开放式系统,具有很强移植性和技术升级空间,可以很容易地应用到其他监控领域如国防军工、海洋地质、环境生态等各行各业,具有良好的发展前景。

    标签: CAN 总线 智能仪表

    上传时间: 2013-04-24

    上传用户:蒋清华嗯

  • 基于ARM的CAN总线与以太网互连系统设计

    目前,大多数嵌入式自动化系统都以MCU为核心,与监测、伺服、显示等仪器、设备配合实现一定的功能。现场信息往往止步于“现场”,嵌入式自动化系统从而成为了“信息孤岛”,因而制约了其本身的发展。要实现大规模的信息集成、综合实施自动化,就需要一种能在工业现场环境下运行、可靠性高且实时性好的通信系统,形成工业现场的底层网络,完成现场自动化设备之间的多点通信。 Ethernet(以太网)和CAN-bus(控制器局域网)分别是目前全球应用最为广泛的国际互联技术和开放式现场总线。随着测控技术与网络技术日益紧密的结合,测控系统接入互联网已经成为大势所趋,这也促成了近年来嵌入式网络技术的飞速发展。以太网技术正在迅猛发展,将其应用到工控领域,可以达到降低成本,简化结构等成效。随着技术的发展以及实际的需要,将两者结合无疑会为控制领域的飞速发展带来巨大的原动力。本文设计了一种以ARM7处理器为核心的高性能嵌入式CAN-Ethernet网关,可以用来实现监控设备和现场设备之间稳固、简洁的互连通信,完成对大规模现场设备的实时测控。 本文具体的研究内容如下: 1)以LPC2290为主控MCU的CAN-Ethernet互连系统的设计思想以及整体结构设计; 2)CAN-Ethernet互连系统转换电路及外围接口电路设计,MCS-51单片机与MCP2510实现CAN总线通信; 3)μC/OS-Ⅱ操作系统在LPC2290上的移植以及互连系统应用软件设计实现与探讨; 4)CAN-Ethernet互连系统核心交换模块的设计; 5)使用HTTP协议实现Web服务的功能,并通过Web页面实现对现场设备的远程测控。

    标签: ARM CAN 总线 以太网

    上传时间: 2013-08-06

    上传用户:夜月十二桥

  • USB Demonstration for DK3200 w

    The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 MicrocontrollerCore. Of these, the μPSD3234A and μPSD3254A are notable for having a complete implementationof the USB hardware directly on the chip, complying with the Universal Serial Bus Specification, Revision1.1.This application note describes a demonstration program that has been written for the DK3200 hardwaredemonstration kit (incorporating a μPSD3234A device). It gives the user an idea of how simple it is to workwith the device, using the HID class as a ready-made device driver for the USB connection.IN-APPLICATION-PROGRAMMING (IAP) AND IN-SYSTEM-PROGRAMMING (ISP)Since the μPSD contains two independent Flash memory arrays, the Micro Controller Unit (MCU) can executecode from one memory while erasing and programming the other. Product firmware updates in thefield can be reliably performed over any communication channel (such as CAN, Ethernet, UART, J1850)using this unique architecture. For In-Application-Programming (IAP), all code is updated through theMCU. The main advantage for the user is that the firmware can be updated remotely. The target applicationruns and takes care on its own program code and data memory.IAP is not the only method to program the firmware in μPSD devices. They can also be programmed usingIn-System-Programming (ISP). A IEEE1149.1-compliant JTAG interface is included on the μPSD. Withthis, the entire device can be rapidly programmed while soldered to the circuit board (Main Flash memory,Secondary Boot Flash memory, the PLD, and all configuration areas). This requires no MCU participation.The MCU is completely bypassed. So, the μPSD can be programmed or reprogrammed any time, anywhere, even when completely uncommitted.Both methods take place with the device in its normal hardware environment, soldered to a printed circuitboard. The IAP method cannot be used without previous use of ISP, because IAP utilizes a small amountof resident code to receive the service commands, and to perform the desired operations.

    标签: Demonstration 3200 USB for

    上传时间: 2014-02-27

    上传用户:zhangzhenyu

  • Single-chip 16-bit/32-bit microcontroller 512 kB flash with ISP/IAP, Ethernet, USB 2.0, CAN, and 10-

    Single-chip 16-bit/32-bit microcontroller 512 kB flash with ISP/IAP, Ethernet, USB 2.0, CAN, and 10-bit

    标签: microcontroller Single-chip bit Ethernet

    上传时间: 2013-12-12

    上传用户:xcy122677

  • This simple app generates a MAC address for Ethernet cards. Maybe it can be useful for you.

    This simple app generates a MAC address for Ethernet cards. Maybe it can be useful for you.

    标签: generates for Ethernet address

    上传时间: 2017-07-01

    上传用户:aeiouetla

  • 基于DSP的CAN总线网络与Ethernet数据实时通信的实现

    该文档为基于DSP的CAN总线网络与Ethernet数据实时通信的实现总结文档,是一份很不错的参考资料,具有较高参考价值,感兴趣的可以下载看看………………

    标签: dsp

    上传时间: 2022-04-25

    上传用户:

  • 嵌入式Ethernet/CAN网关接口设计与驱动

    针对现场总线的应用,提出了以控制器MCP2515作为CAN总线硬件扩展接口的以太网/CAN总线嵌入式网关解决方案。这种方案可实现以太网和CAN总线的数据交互,同时给出了嵌入式Linux下CAN

    标签: Ethernet CAN 嵌入式 网关

    上传时间: 2013-07-24

    上传用户:xuan‘nian

  • 基于C8051F040的以太网-CAN转换电路设计

    以太网和CAN总线应用广泛,但由于其通信协议不同,两种总线器件间无法进行数据通信,因此,设计了基于CP2200与C8051F040的以太网总线与CAN总线接口转换电路,并给出部分相关硬件电路与软件设计分析。在保证数据完整和协议可靠的前提下,通过握手协议和简化的以太网协议,不仅实现了以太网数据与CAN数据的转发,同时还顺利的解决了以太网的高速性与CAN的低速率冲突,以及两者数据包之间的大小不同的矛盾。 Abstract:  In the development of actual application, Ethernet and CAN bus are used very extensively. Owing to its various communication protocols, the communicating between two kinds of bus device can’t be carried out. Therefore, in order to solve this problem, the Ethernet-CAN bus interface circuit based on CP2200 and C8051F040 was designed in this paper, and part of the related hardware circuit and software design analysis were given. On the condition of data’s integrity and protocols’reliability, through the handshaking protocols and the simplified the Ethernet protocol, not only the data switching between CAN and Ethernet was realized, but also the differ in velocity and packet size was solved.

    标签: C8051F040 CAN 以太网 转换

    上传时间: 2013-10-15

    上传用户:Ants

  • CAN-bus网络通过无线wifi接入以太网的解决方案V0.9

    CANWiFi-600/622是为电信级应用而设计的工业级CAN转WiFi接口卡/设配器,它内部集成了一路/两路CAN-bus 接口、一个以太网接口、一路无线WIFI接口以及TCP/IP 协议栈,符合 IEEE802.11b/g/n 标准,具有传输速率高、接收灵敏度高和传输距离远等特点,CANWIFI-600/622通过与 WiFi 基站设备(或无线宽带路由器或无线AP)一起配合使用,设备可以在与其它拥有相同网络ID的接入点间自由的漫游,通过无线WiFi把CAN网络接入Wireless Ethernet。用户利于它可以轻松完成CAN-bus 网络和Wireless Ethernet的互连互通,进一步拓展CAN-bus 网络的范围。

    标签: CAN-bus wifi 0.9 网络

    上传时间: 2015-01-02

    上传用户:cooran

  • CSMA / CD simulation code, Gigabit Ethernet previous versions used to compete for a unified approach

    CSMA / CD simulation code, Gigabit Ethernet previous versions used to compete for a unified approach, in order to decide on the right of media access, which relates to the backoff algorithm. OPNET environment can be achieved through the experience card.

    标签: simulation Ethernet approach previous

    上传时间: 2014-01-05

    上传用户:yangbo69