硕士学位论文

基于ARM的嵌入式系统设计

摘要

嵌入式系统以其小型、专用、易携带、可靠性高的特点，已经在各个领域得到了广泛的应用，如军事国防、消费电子、通信设备、工业控制等。嵌入式处理器内嵌实时操作系统(RTOS)，具有实时性、低成本、小型化、专用化和高可靠性，克服了传统的基于单片机控制系统功能不足和基于PC的系统非实时性的缺点。随着嵌入式系统软硬件技术的飞速发展，其应用领域必将更为广阔，嵌入式系统的研究将会有非常广泛的前景。

本课题的目的就是研究适用于学校教学的嵌入式系统平台，这对于提高对嵌入式系统的理解具有重要意义。本课题以嵌入式系统设计原理和实际应用为核心，从理论上和技术方法上开展了一系列研究。主要工作有:

1、全面系统地概述了嵌入式系统的发展过程和分类，及其在各个领域内的应用，以及嵌入式系统的发展方向;

2、基于嵌入式系统设计原理的嵌入式开发平台的设计的总体方案，从硬件和软件两个方面讲述了嵌入式系统的设计思想和方法，及其可行性的论证;

3、嵌入式系统硬件平台的设计与调试，着重叙述了硬件平台的整体设计方案，包括各个设计模块的选型与接口电路的设计;

4、嵌入式系统所采用的操作系统的移植与调试，详细讲叙了μC/OS-II实时操作系统在基于LPC2136的嵌入式控制器硬件平台上的移植过程及注意事项;

5、对μC/OS-II内核实时性能进行了深入的分析，通过实际测试得出了在特定条件下μC/OS-II的实时响应参数。

6、在后继的工作中，我们还要在实时嵌入式操作系统的基础上完成对操作系统的扩展以及对各个模块的驱动。

总之，本文完成了嵌入式系统的硬件平台构架、实时嵌入式操作系统的移植，为今后嵌入式系统的后继开发提供了一个嵌入式平台。

关键词:嵌入式系统 ARM RTOS μC/OS-II

Abstract

With the development of IT network technology, embedded system shows a new direction of technology development. Embedded system has been applied in military, electronics, communication, industrial control and so on, with respect to its small size, high performance, low cost, high reliability and oriented object program.

Embedded controller with RTOS gets over the traditional microcontroller and the disadvantage of the un-real time specialty base on pc, instead it is real-time, low cost ,miniaturized ,customized ,and high dependability. It also has a broad foreground , along with the fast development of hardware of embedded system .

This intention of this topic is designing the embedded system, which is important for enhancing the understanding of embedded system. The research is highlighted in both design theory and applications of embedded system, which extended its developments. This paper is organized into six parts:

1. This article essentially introduced the development of embedded system, its classification, applications in numerous areas, and its development orientation.

2. The second chapter covers the general design of the embedded system, based on the elements of embedded system design. then i