基于C8051F040单片机的CAN总线测试模式研究

摘要

Fieldbus has become the hot-spot in the data bus field. CAN bus is recognized to be one of the most prospective field-buses. The design and debugging of CAN bus node is the focal point in CAN bus communication system design. The CAN controller integrated in C8051F040 is introduced. A CAN communication node is designed base on C8051F040. The software design program of CAN node test mode is presented. It can be used to test CAN bus modules and save the testing time.%现场总线已成为数据总线领域中最为活跃的热点,CAN总线被公认为最有前途的现场总线之一,CAN总线节点的设计、调试是CAN总线通讯系统设计的重点.在此介绍了C8051F040单片机内部集成的CAN控制器,并基于C8051F040单片机设计了一个CAN通信节点,并给出了CAN节点测试模式软件设计程序,可以用于CAN总线模块的测试,节省测试时间.