基于FlexRay总线的通讯单元设计  

Design of an Automotive Telematic Unit Based on FlexRay Bus

作　　者：李菲[1] 郭爱华 宋德星[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院 [2]上海工业自动化仪表研究院仪器仪表自控系统检验测试所

出　　处：《电子技术（上海）》2012年第11期79-81,共3页Electronic Technology

摘　　要：FlexRay是符合下一代车载网络要求的通讯协议。文章针对FlexRay汽车总线,给出一种通讯单元的设计方案。Freescale公司的16位汽车微控制器MC9S12XF512集成了双通道FlexRay协议v2.1,通过FlexRay通讯控制器TJA1080实现节点和FlexRay总线的通信,并且通过GSM/GPRS模块实现通讯功能。FlexRay is the communication protocol that meets the requirements for next generation of vehicle network. This article describes the design of an automotive telematic unit based on FlexRay automotive bus. MC9S 12XF512 is a 16-bit MCU made by Freescale Company, which features a dual-channel FlexRay module that can transmit FlexRay signal. TJA1080 is a FlexRay transceiver compatible with the FlexRay electrical physical layer specification V2.1. The communications between nodes and FlexRay bus are implemented through FlexRay communication controller, and the communications function is realized through GSM/GPRS module.

关 键 词：FLEXRAY 通讯单元 汽车微控制器 TJA1080A 

分 类 号：TN915.04[电子电信—通信与信息系统]