VxWorks下龙芯3A中断控制技术的研究  

Research on interrupt control technology of Loongson 3A based on VxWorks

作　　者：徐骞[1] XU Qian(Jiangsu Automation Research Institute,Lianyungang 222061,China)

机构地区：[1]江苏自动化研究所,江苏连云港222061

出　　处：《现代电子技术》2017年第14期36-39,共4页Modern Electronics Technique

基　　金：国家自然科学基金(61303045)

摘　　要：中断控制是嵌入式操作系统VxWorks正常运行的基础,是其具有高实时性的保障。针对VxWorks系统下中断控制驱动开发难度大、应用广等特点,首次提出了VxWorks系统中断控制驱动分层模型。基于该模型提出了VxWorks下中断控制驱动软件的设计方法,并基于该方法实现了VxWorks下国产龙芯3A处理器中断控制驱动软件的开发。最后提出一种优化龙芯3A中断控制性能的方法,大大缩短了中断响应时间,提高了系统的性能。Interrupt control is the base of normal running of the embedded operating system VxWorks and is a safeguard ofhigh realtime performance.A drive hierarchical model of interrupt control on VxWorks is proposed aiming at the characteristicsthat the drive development of interrupt control on the embedded operating system VxWorks has great difficulty and its wide application.According to this model,a design method of interrupt control drive software based on VxWorks is put forward.The interrupt control drive software of Loongson3A have was developed successfully with the method.A method to optimize the Loongson3A interrupt control performance is presented.It greatly shortens the interrupt response time,and improves the performance ofthe system.

关 键 词：中断控制 VXWORKS 龙芯3A 驱动软件 

分 类 号：TN876-34[电子电信—信息与通信工程] TP311.1[自动化与计算机技术—计算机软件与理论]