CAN总线系统中多播技术的实现  

Implementation of multicast in CAN bus system

作　　者：孙立辉[1] 和志强[1] 曾文献[1] 

机构地区：[1]河北经贸大学,河北石家庄050061

出　　处：《河北省科学院学报》2004年第3期62-66,共5页Journal of The Hebei Academy of Sciences

摘　　要：多播技术是控制CAN总线系统中节点同步工作的有效方法。详细介绍了CAN总线控 制器SJA1000在PeliCAN模式下验收过滤器的工作原理。设计了在同一CAN总线网络中实现 单播、组播和广播的方法。该方法具有单播帧和多播帧全部由总线控制器自动验收,无需软件 处理的优点,可以大大简化CAN总线节点的软件设计,增强应用系统的实时性能。Multicast is an effective way to control nodes working synchronously in CAN bus system. The principle of acceptance filter of SJA1000 working in PeliCAN mode is described in detail. A method of realizing single-cast, broadcast and multicast in one CAN bus network is presented. This method can achieve that all single-cast frames and multicast frames are filtrated by CAN bus controller automaticallywithout software′s disposal. This method can simplify software design of CAN bus nodes and enhance real-time performance of application system greatly.

关 键 词：SJA1000 CAN总线 组播 广播 

分 类 号：TN91[电子电信—通信与信息系统]