摘要
CANopen主站作为CANopen网络的配置管理者、网络管理者和监视者具有重要的意义;CANopen网络的特性决定了CANo- pen主站必须具有高度的实时性、并发处理能力和动态灵活性,因此多任务的工作方式是最佳的选择:基于可移植性的考虑,提出了一种用标准C语言实现的非抢占式的多任务调度结构;由于仅用标准C语言实现,该结构可运用于任何C编译环境;经过实际测试,在ARM7和Windows操作系统上该结构都可达到微秒级的调度速度,满足CANopen主站的实时性要求。
As the configuration manager, network management master and monitor, CANopen master plays an important role in CANopen network. According to its features, CANopen master should operate real-timely, concurrently and dynamically. Therefore, multi-task is the best work mode. In consideration of transplanting capability, an ANSI C based non-preemptive multi-task scheduling structure is proposed. Because of the pure ANSI C implementation, it can run oil any C compiler. Verified by field experiments, it realizes microsecond level scheduling on both ARM7 and windows platforms, so that it satisfies the real-time requirements of CANopen.
出处
《计算机测量与控制》
CSCD
2008年第4期558-560,581,共4页
Computer Measurement &Control
基金
北京市教委重点项目
北京市自然科学基金共同资助项目(KZ20041000501)
