摘要
提出一种以ARM+DSP等为硬件基础的嵌入式Linux数控系统设计方案,将数控系统按实时性分为实时模块和非实时模块,采用运动控制芯片DSP保证实时性,ARM-Linux则运行实时性要求不高但功能复杂的数控任务。数控系统硬件上采用主从式双CPU结构,软件架构包括界面层、实时层和非实时层。该方案充分利用了Linux的健壮、开源、应用广泛和运动控制芯片PCL6045功能强大、算法成熟的优势完成高性能、低成本3轴联动数控系统的设计。实验结果表明:该数控系统实时性好、可移植性强。
A novel embedded Linux CNC system based on ARM and DSP was introduced. The CNC system was divided into real- time modules and non real-time modules. The motion control DSP chip can ensure real time, and the ARM-Linux was used to run non real-time complex CNC tasks. The hardware structure was dual-CPU of master/slave mode, and the software architecture contained in- terface layer, real-time layer and the non real-time layer. The design of high-performance and low-cost three-axis CNC system takes advantage of Linux＇s robust, open-source and the chip PCL6045 owned powerful function and sophisticated algorithms. The experi- mental result indicates that the embedded Linux CNC system has perfect real-time and portability.
出处
《机床与液压》
北大核心
2012年第13期94-97,共4页
Machine Tool & Hydraulics
基金
国家科技重大专项(2009ZX04009-014)
