基于ARM+DSP的嵌入式Linux数控系统设计  

Design of Embedded Linux CNC System Based on ARM and DSP

作　　者：李善锋[1] 刘敬猛[1] 徐东[1] 陈柏成[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191

出　　处：《机床与液压》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)

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.

关 键 词：ARM+DSP结构 嵌入式数控系统 LINUX操作系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]