| 基于ARM9的嵌入式Linux测控系统实时性增强研究 |
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| 引用本文： | 袁辉建,陈曾汉,晏来成.基于ARM9的嵌入式Linux测控系统实时性增强研究[J].测控技术,2007,26(1):61-63. |
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| 作者姓名： | 袁辉建 陈曾汉 晏来成 |
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| 作者单位： | 重庆大学,高电压及电工新技术国家重点实验室,重庆,400044;重庆大学,高电压及电工新技术国家重点实验室,重庆,400044;重庆大学,高电压及电工新技术国家重点实验室,重庆,400044 |
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| 摘 要： | 对Linux内核进行了分析,研究了Linux内核在实时性方面的一些不足,并从开发一套基于ARM9的具体测控系统出发,提出了对ARM平台上的Linux系统时钟粒度、调度方式和中断管理的修改方案,该方案提高了嵌入式Linux内核的实时性.以此为基础,构成了一套多任务测控系统,该系统能够满足测控的实时性要求.
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| 关 键 词： | 嵌入式 系统时钟粒度 调度方式 中断管理 |
| 文章编号： | 1000-8829(2007)01-0061-03 |
| 修稿时间： | 06 22 2006 12:00AM |
Study of Enhancing Real-Time Capability in Measurement and Control System Based on Embedded Linux for ARM9 |
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| YUAN Hui-jian,CHEN Zeng-han,YAN Lai-cheng.Study of Enhancing Real-Time Capability in Measurement and Control System Based on Embedded Linux for ARM9[J].Measurement & Control Technology,2007,26(1):61-63. |
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| Authors: | YUAN Hui-jian CHEN Zeng-han YAN Lai-cheng |
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| Affiliation: | State Key Laboratory for High Voltage and New Technology of Electrical Engineering, Chongqing University, Chongqing 400044, China |
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| Abstract: | Linux kernel is analyzed,and its deficiency in real-time aspect is studied.And aiming at development of a measurement and control system based on embedded Linux for ARM9,modification scheme about Linux system clock granularity,scheduer and interrupt management are presented.The real-time capability of Linux kernel can be enhanced through the modification.And a multiple-task measurement and control system based on the modification has been realized,which is satified the requirement in real-time capability. |
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| Keywords: | embedded clock granularity schedule method interrupt management |
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