CAN总线上的智能节点是网络上报文的接收和发送站,一般由单片机和可编程的CAN 通信控制器组成。本文介绍了一种新型的独立CAN 通信控制器MCP2515;给出其在CAN 总线系统智能节点中的一个应用实例,硬件设计给出了节点的电路原理图,软件设计给出了系统程序的设计流程图,并对其作了简要的说明。 关键词: CAN 总线;CAN 控制器;MCP2515;智能节点 Abstract: The smart node on CAN field-bus is the transmit or receive station of messages. It is mainly combined with micro-controller and programmable CAN controller. The paper introduces an new type of stand-alone CAN controller-MCP2515, and presents an application in smart CAN node in which the schematic circuit diagram of node and flowchart of program have been presented as well as simple illumination. Keywords: CAN field-bus; CAN controller; MCP2515; smart node