嵌入式Linux系统中断设计要点详解

摘要

Linux System has a wide range of hardware platform, stable kemel code, rich application software, good network interface, etc. It has become focus in the field of embedded research. Interrupt management is one of the embedded operating system cores. It is the key to improve the drive to take good use of interrupting in device driving program. The paper analyzes framework and process of interrupt handling technology in Linux system, discusses the interrupt migration and application points of embedded Arm-Llnux in detail.%Linux系统有着广泛的硬件平台、高效稳定的内核代码、丰富的应用软件、良好的网络接口等特点，已经成为嵌入式系统领域中的研究热点。中断管理是嵌入式操作系统的核心之一，在设备驱动程序中使用好中断是提高驱动的关键。本文分析了Linux系统的中断处理技术的框架与流程，详细讨论了嵌入式Arm—Llnux的中断移植和应用要点。