多种通信网络及接口转换模块的研制  

Development of Multiple Communication Networks and Interfaces Conversion Module

作　　者：胡新华[1,2] 邓元勇[1] 王先平 

机构地区：[1]中国科学院国家天文台,北京100012 [2]中国科学院研究生院,北京100049 [3]北京芯系嵌入式系统设计室,北京100012

出　　处：《计算机工程》2009年第6期1-3,共3页Computer Engineering

基　　金：中科院知识创新重大方向性基金资助项目(KJCX2-YW-T04);国家自然科学基金资助项目(60673158)

摘　　要：针对大系统中共存的多种通信网络和同种网络多种接口互相通信的需要,采用LPC2368SOC结合RTL-RTX实时操作系统,研制一个支持多种通信网络及接口互相转换的模块,实现以太网、串口网、CAN网(现场总线网)和USB之间的通信,以及RS232,RS422和RS485接口之间的通信。从线速上对网络转换速度进行定量分析,指出该模块使用时的极限约束条件。For the needs of communication between a variety of communication networks and interfaces in the same network which coexist in large-scale systems, a conversion module which supports communication between a variety of communication networks and interfaces is developed based on LPC2368 and the real time operating system of RTL-RTX. The module supports the communication between Ethernet, serial network, CAN（fieldbus network） and USB, as well as RS232, RS422 and RS485 communication interfaces. The limit conditions to use the conversion module are pointed out based on the quantitative analysis for the conversion rate in the network wire-speed.

关 键 词：LPC2368微控制器 通信网络 线速 

分 类 号：TP919[自动化与计算机技术]