Abstract:
This paper discusses a hardware and software architecture of embedded numerical control system. This system is built on uCOS-II and ARM. The timing specification of uCOS-II is analyzed based on the performance of RTOS. The method for getting the longest timing specification of uCOS-II is described. And the time of system schedule is measured. The paper also analyzes the system real-time performance and stability. The result indicates that this embedded numerical control system has perfect real-time character, low cost and high-performance. It has extensive application.
Key words:
Real time operation system(RTOS),
uCOS-II,
Advanced RISC machine(ARM)
摘要: 提出了一种嵌入式数控系统的软硬件体系结构,该系统采用实时操作系统uCOS-II和ARM嵌入式微处理器构建。结合实时多任务操作系统的性能指标,分析了嵌入式实时操作系统uCOS-II的时间特性,并给出了uCOS-II中最长时间特性的计算方法,同时,在数控系统的平台上,测试了系统任务调度各个阶段所用时间,并对此系统的实时性和稳定性进行了分析。结果表明,基于uCOS-II和ARM所构建的嵌入式数控系统的实时性好,且具有低成本、高性能的特点,具有广泛的应用前景。
关键词:
实时操作系统,
uCOS-II,
ARM
LIU Miao; WANG Tianmiao; WEI Hongxing; CHEN Youdong. Real-time Analysis of Embedded CNC System Based on uCOS-II[J]. Computer Engineering, 2006, 32(22): 222-224.
刘 淼;王田苗;魏洪兴;陈友东. 基于uCOS-II的嵌入式数控系统实时性分析[J]. 计算机工程, 2006, 32(22): 222-224.