摘要
针对采用一条CAN总线的汽车内部网络容易出现网络载荷过重的情况,基于SAE汽车网络级别将汽车内部网络划分为驱动系统和车身系统2个网段,并以32位ARM处理器LPC2119为核心设计了CAN网桥,实现了2个CAN网段的互连。给出了CAN网桥的硬件接口电路,阐述了嵌入式实时操作系统μC/OS-Ⅱ下CAN网桥的软件实现过程。
According to the busy network payload when only one CAN bus was used in vehicle interior network, the vehicle interior network was divided into drive CAN subnet and body CAN subnet based on SAE vehicle network grade, and this pair of CAN subnets were linked by CAN bridge based on 32 bit ARM processor LPC2119 was designed. This paper presented the hardware interface circuit of CAN bridge, and discussed the process of software design based on ~C/OS-II of CAN bridge in detail.
出处
《仪表技术与传感器》
CSCD
北大核心
2009年第1期45-47,99,共4页
Instrument Technique and Sensor
基金
广西壮族自治区科学技术厅资助项目(桂科能063006-5G-3)
