新型总线FlexRay网络通信设计实现

The Design and Realization of FlexRay Network Communication

随着汽车对通信速率的要求越来越高,FlexRay的应用成为必然趋势。主要介绍新型总线FlexRay的协议、FlexRay网络的系统设计以及FlexRay节点的硬件设计和软件设计。该篇中的FlexRay网络是以集成通信控制器的MPC5567主芯片和收发器TJA1080所构成的节点按点对点拓扑结构来组成的网络,并且以按钮控制灯的开关为实例来介绍FlexRay如何实现网络中各个节点之间的同步和数据收发,从而实现FlexRay网络之间的通信。

As the higher and higher demands for the communication rate of the cars,the applications of FlexRay become inevitable.This paper introduces the protocol of FlexRay,and the system design of the FlexRay network,the device and software design of the FlexRay node.This FlexRay network is based on the MPC5567 integrated communications controller and the TJA1080 transceiver,and the topology of the network is point to point.We use the button to control the light as an example to explain how the nodes in the network to keep in sync and how the nodes to keep communication with each other.