基于ARM9的嵌入式车载导航终端的设计.doc

基于ARM9的嵌入式车载导航终端的设计
  北华大学毕业设计(论文)
  摘要
  随着汽车产业的迅速发展,GPS车载导航系统得到了越来越广泛的应用,已成为汽车上的重要配置,为用户提供便利。另一方面随着计算机技术、通信技术的迅猛发展,微型化和专业化成为发展的新趋势,嵌入式系统已经成为信息产业的热点。而Linux操作系统以其性能稳定可靠、源码公开免费、可裁剪、易移植等优点成为嵌入式系统的首选操作系统,具有巨大的市场价值和潜力。
  论文首先简要介绍了GPS车载导航系统的基本原理及其在国内外的现状与发展前景,并描述了课题的研究方向和作者的主要工作。然后根据GPS车载定位导航系统的要求设计系统方案,并按照该方案设计了ARM9(S3C2410A)核和系统硬件平台,重点分析了电源和时钟、外部存储器、以太网、串口、音频和HPI等接口电路设计及其原理。在对嵌入式Linux操作系统深入理解的基础下,设计了软件系统框架及应用程序,并为各设备模块编写了设备驱动程序。
  论文最终所实现的是一款高档车载导航终端,具有彩色LCD,外形美观。除具有友好的人机交互界面外,在通信方面:具有车载电话的功能,且可以进行电子地图的实时更新;在娱乐方面,可外接DVD/VCD、浏览电子书、播放MP3、游戏等。强大的软件系统使导航终端具有较强的系统配置和管理功能。
  
  关键词:嵌入式Linux系统; 全球定位系统; 智能交通系统; 无线通信系统
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  北华大学毕业设计(论文)
  Abstract
  With the rapid development of the auto industry, GPS Vehicle Navigation System has been widely used. It has e an important vehicle configuration, providing convenience to the users. On the other hand, along with fast development puter munication technology, and micromation and specialization as a new trend, the embedded system has e a hotspot of the information industry. And the Linux Operating System es the preferred operating system for many users, because of its advantages, such as stability and reliability, free and open source, being able to cut, easy to be transplanted and so on. So it has tremendous values and potentials in the auto market.
  Firstly, the paper briefly introduced the fundamental of the GPS Vehicle Navigation System and its status quo and prospect at home and abroad. Described the research purpose of the subject and the author’s main , according to the requirements of this system, we designed the systematic accordance with the solution, we designed the hardware platform:the ARM—core system and analyzed the peripheral circuits design. Such as Power and Clock, External Memory, , Serial Port, Audio, HPI Interface and etc. On the basis of the deep understanding of the embedded Linux system, we designed the software framework and application programs, and wrote the Linux Devic