异构CAN总线节点通信系统设计  

Design of inter-node communication system of heterogeneous based on CAN bus

作　　者：郝彬[1] 李树凤 王志琳 刘新月[1] HAO Bin;LI Shufeng;WANG Zhilin;LIU Xinyue(School of Electronic Engineering,Tianjin University of Technology and Education,Tianjin 300222,China;Keystar-Technology Co.,Ltd.,Tianjin 300101,China)

机构地区：[1]天津职业技术师范大学电子工程学院,天津300222 [2]科信达通(天津)科技发展有限公司,天津300101

出　　处：《天津职业技术师范大学学报》2022年第2期50-53,共4页Journal of Tianjin University of Technology and Education

基　　金：天津市科技计划项目(20YDTPJC00690);天津职业技术师范大学科研发展基金资助项目(KJ15-14).

摘　　要：针对照明光源的多点布设与控制问题,采用CAN总线方式实现多控制节点间的通信。针对不同主控芯片的异构节点,采用相同的波特率,对实现CAN总线通信的关键技术进行了研究。搭建由1个主节点和3个从节点组成的演示系统,主节点采用STM32F103芯片、内置bxCAN控制器,从节点采用STC89C52RC单片机、外扩独立的CAN控制器SJA1000。实际操作验证了该方案的可行性。To solve the problem of multi-point layout and control of lighting,the Controller Area Network(CAN) bus is used to realize the communication between multiple control nodes. The key technology of CAN bus communication is studied by using the same baud rate for heterogeneous nodes with different master control chips. A demonstration system consisting of a master node and three slave nodes is built,with the STM32F103 chip and built-in bxCAN controller for the master node and the STC89C52RC microcontroller and the stand-alone CAN controller SJA1000 for the slave node. The practical operation verifies the feasibility of the scheme.

关 键 词：CAN总线 异构节点 波特率 

分 类 号：TN915.02[电子电信—通信与信息系统]