在分析CANopen 协议结构和特点的基础上,着重给出了用CANopen 协议开发车载平台数据通讯系统的方法,其中包括CAN 控制器的硬件接口设计和DLL 模块、对象字典、应用程序等软件部分实现,通过在车载平台数据通讯系统的运行,验证了数据通讯系统的可靠性。关键词:CANopen,对象字典,稳定平台,数据通讯Abstract: Analyzes the structure and characteristic of CANopen protocol, and describes the realization way of the vehicle-borne platform in detail, which includes the hardware interface design of CAN controller, and the software realization of DLL module, object dictionary and application program, finally, the reliability of the data communication system is testified by experiment.Key words: CANopen; Object Dictionary; stabilized platform; data communication
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