VxWorks系统上基于M总线控制系统的设计与实现

研究基于V xWo rk s 嵌入式实时系统下M 总线控制系统的软件设计思想和实现方法L 该系统需要设置两个各自独立运行的实时任务, 以达到对外部设备进行控制的功能L 第1 个任务负责收集命令和通过传感器采集到的数据, 并设定命令优先级; 第2 个任务负责解释执行, 并发送命令执行后的响应, 两个任务之间通过命令缓存链表进行通信L 此设计思想简单、高效, 可以被广泛应用在与M 总线相关的其他控制系统中L
关键词: M 总线; 现场总线; V xWo rk s; 传感器
Abstract: P ropo ses a new sof tw are design ing idea and m ethod of imp lem en tat ion fo r M bu s con t ro l system based on V xWo rk s em bedded real2t im e system s. In o rder to realize the funct ion of con t ro lling the device, two real2t im e task s are set. The one gathers the comm and and the data co llected by sen so r, and set the p rio rity; the o ther run s the comm and and feeds back the resu lt to the device that needs the resu lt. They comm un icate by a comm and buffer link betw een them. The m ethod u sed in th is paper is simp le and h igh ly eff icien t and can be u sed in o ther k inds of con t ro l system s related w ith theM bu s system.
Key words: M bu s; f ield bu s; V xWo rk s; sen so r