基于OMAP3530数控系统的双核通信设计  

Design of dual core communication based on OMAP3530 CNC system

作　　者：杨剑波[1] 赵东标[1] 刘念[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《电子技术应用》2015年第9期33-35,38,共4页Application of Electronic Technique

摘　　要：OMAP3530是TI公司针对开放式多媒体应用平台推出的一款高性能嵌入式微处理器。基于DSP/BIOSTM LINK的软件构架对ARM和DSP进行一种新型通信方式的设计。其中ARM端运行嵌入式Linux系统,完成译码、人机交互、数据管理等任务;DSP端运行DSP/BIOS实时系统,完成粗插补、刀具补偿和逻辑控制等任务。通过任务中断服务和时间片轮询法来实现数控系统多任务的准并行运行。使用双核通信完成ARM和DSP在数控信息上的沟通、协调。系统采用上下位机模式,大大提升数控系统实时性和插补性能。OMAP3530 is a high-performance embedded microprocessor designed by TI company for open multimedia application platform. A new type communication method is designed between the ARM and DSP based on DSP/BIOSTM LINK software framework. Particularly, Linux operating system is embedded on ARM side, to implement decoding, human-computer interaction and data management tasks. DSP/BIOS real-time operating system is embedded on DSP side, to execute rough interpolation, cutter compensation and logic control tasks. The system can realize quasi parallel operation of multi task through task interrupt service and time slice round-robin method and complete communication between ARM and DSP through dual-core communication. The system uses master-slave computer control mode, which greatly enhances the real-time performance and the interpolation of CNC system.

关 键 词：OMAP3530 双核通信 DSPLINK 时间片轮转法 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]