基于CAN/LIN的汽车检测系统电路设计

摘要

针对国内自主品牌汽车的稳定性的迫切需求，设计了一套基于嵌入式的汽车CAN/LIN总线测试系统。该系统包括CAN总线测试模块、LIN总线测试模块和故障分析三个方面。该文主要介绍系统的整体电路设计及各部分主体电路，并说明了CAN、LIN总线收发器与主控芯片的数据交互端口。经实验测试，该系统功耗低，使用灵活方便。%Aiming at the urgent demand of stability of domestic self-owned brand car,we designed a test system of vehicle CAN/LIN bus based on embedded. It included CAN bus test modules,LIN bus test modules and fault analysis. This paper mainly described the whole system circuit design and each part of the main cir-cuit,and explained the data exchange port of CAN,LIN bus transceiver and the main control chip. After testing,the system has low power consumption,convenient and flexible to use.