轻轨列车改造项目中基于MSP430与SJA1000的CAN总线通信节点设计
esign of CAN Bus Communication Node based on MSP430 and SJA1000 for the reforming project of light rail
轻轨列车工作环境的高压辐射、高速运行以及强烈震动等特点，使其对现场通信总线的要求比较高。目前较流行的工业现场总线中，CAN总线比较适合在上述复杂电磁环境下稳定工作。针对轻轨列车改造项目中遇到的原有设备在复杂电磁环境工作不稳定的问题，本文提出一种基于MSP430单片机，并以SJA1000为CAN控制器的通信节点设计方案。此方案分别解决了MSP430和SJA1000的逻辑电平不兼容、SJA1000按照外部存储器方式进行操作而MSP430并没有对外开放存储器总线的问题，并针对轻轨列车运行中的复杂电磁环境易对电子元件的运行和通信稳定产生不同程度的影响提出了相应的解决方案。
he light rail projects, because of its high radiation and high-speed operation working environment which has a high demand of fieldbus. Currently, among the popular industrial field bus, CAN bus is suitable for such complex electromagnetic environment which can works stably. This paper proposes a design scheme of communication node based on MSP430, and using SJA1000 as its CAN controller. This scheme solves the problem that the logic level between SJA1000 and MSP430 is not compatible, SJA1000 operates according to external memory way, while MSP430 doesn't have any open memory bus respectively. In addition, according to the problem that the complex electromagnetic environment the rail train running on has different level influence on the operation of electronic components and communication stability, this paper puts forward corresponding solutions.
马洪连、袁利大
铁路运输工程通信电子电路
计算机系统结构MSP430SJA1000N抗干扰JA1040
he computer system structureMSP430SJA1000NAnti-interferenceTJA1040
马洪连,袁利大.轻轨列车改造项目中基于MSP430与SJA1000的CAN总线通信节点设计[EB/OL].(2010-10-09)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/201010-102.点此复制
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