CAN总线并发通信时下位机应用软件设计  

Design for Communication of CAN Bus of Lower Application Software in Concurrent Communication

作　　者：谢晓兵[1] 董筠[1] 周新发[1] 李鹤[1] 

机构地区：[1]北京控制工程研究所,北京100190

出　　处：《空间控制技术与应用》2015年第2期51-56,共6页Aerospace Control and Application

摘　　要：为满足系统通信中的时间性能要求,设计一种利用中断接收和发送CAN总线数据的通信方法,给出了算法的C语言流程图实现.当增加GPS作为总线主节点发送广播引起CAN并发通信导致硬件中断冲突时,针对并发通信的硬件中断冲突原理作了分析,重新设计了下位机CAN总线通信软件,解决CAN总线并发通信冲突.In order to meet the requirement for time performance of system communication, a new design method of lower machine communication software is proposed by using transmitting interrupt and receiving interrupt. When GPS added as another host causes a concurrent communication of CAN bus,the reason of interrupt conflict is analyzed and the algorithm is updated to solve the bus collision.

关 键 词：CAN总线 并发通信 软件设计 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]