| 一种基于lwIP的CAN/Ethernet嵌入式网关设计 |
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| 引用本文： | 张文亚,李恩,蔡丽,梁自泽.一种基于lwIP的CAN/Ethernet嵌入式网关设计[J].计算机应用,2007,27(2):278-281. |
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| 作者姓名： | 张文亚 李恩 蔡丽 梁自泽 |
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| 作者单位： | 1. 中国科学院,自动化研究所,北京,100080;中国科学院研究生院,北京,100049
2. 中国科学院,自动化研究所,北京,100080 |
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| 摘 要： | 为了实现控制中心的以太网和生产现场CAN总线的互联，完成对生产现场的实时监控，设计了CAN/Ethernet嵌入式网关。通过移植轻量级的TCP/IP协议栈（lwIP）实现了以太网通信所需的TCP/IP协议栈，通过对CAN2.0B数据扩展帧报文标志符的重定义提出并实现了CAN应用层协议，提出了一种转换协议来完成两种协议的转换和对通信的控制，实现了CAN节点和以太网服务器及不同网关下CAN节点之间的通信。
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| 关 键 词： | CAN总线 以太网 网关 轻量级的TCP/IP协议栈 |
| 文章编号： | 1001-9081（2007）02-0278-04 |
| 收稿时间： | 2006-08-09 |
| 修稿时间： | 2006-08-09 |
Design for lwIP-based embedded gateway for CAN/Ethernet |
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| ZHANG Wen-ya,LI En,CAI Li,LIANG Zi-ze.Design for lwIP-based embedded gateway for CAN/Ethernet[J].journal of Computer Applications,2007,27(2):278-281. |
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| Authors: | ZHANG Wen-ya LI En CAI Li LIANG Zi-ze |
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| Affiliation: | 1. Institute of Automation, Chinese AcademyofSciences, Beijing 100080, China; 2. School of Graduate, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | To realize the interconnection between the nodes of Ethernet in the control center and the nodes of the CAN bus in the industry field, an embedded system based CAN/Ethernet was designed. The TCP/IP protocol was implemented by porting the lwIP and CAN application layer protocol was proposed and realized by redefining the content of the IDENTIFIER of the CAN2.0B extension data frame. A transformation protocol was proposed and implemented to realize the data transformation between the two protocols and the control of the communication. The communication between the server of the Ethernet and the CAN nodes and the communication between the CAN nodes with different gateways were realized. |
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| Keywords: | CAN bus ethernet gateway lightweight TCP/IP stack (lwIP) |
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