基于微控制器MC68S08QG8的测控系统中的应用

　　测控系统性能的优劣是温室作物优质、高产、高效栽培的关键。针对当前温室测控系统中需要解决的各种问题——降低成本、降低功耗、提高抗干扰能力、提高实时性和通信速率，提出了CAN总线在基于微控制器MC68S08QG8的测控系统中的应用，详细介绍了单个智能节点的硬件设计和软件实现，设计了简单的CAN总线应用层协议。运行结果表明该系统结构简单、可靠性高、实时性强。

　　Abstract:

　　Measurement and control system performance is key to greenhouse crop high quality， high yield and efficient cultivation. In view of the current greenhouse measurement and control system needs to solve the problems， reducing cost， reducing power consumption， improving anti-jamming capability， improving real-time and communication. The paper proposed application of CAN bus based on microcontroller MC68S08QG8 measurement as communication profile， and introduced a single intelligent node of the hardware design and software realization in detail. A simple CAN application layer protocol was designed. The running result shows that the system has performances of simple structure， high reliability and strong real-time.