基于arm9的linux操作系统移植---大学毕业设计

基于 ARM9 的 LINUX 操作系统移植Transplantation of Linux Operation System Based on ARM9摘 要随着电子技术的不断更新，嵌入式已经涉及到各行各业了，在智能家电，数字移动终端等这些行业嵌入式软件开发的需求下，嵌入式集成开发环境已经成为目前嵌入式系统进展的趋势。Linux 作为优秀的开源操作系统软件被广泛应用到嵌入式操作系统中，它的有用性，可移植性，支持大容量的内存，MMU（微控制器）和I/O 系统等得到了体现。本次设计主要讨论了嵌入式 Linux 系统从 PC 机向开发板上移植的过程，硬件平台是基于 CPU：三星 S3C2440A，采纳 ARM920T 内核，主频 400MHZ。本文介绍了嵌入式系统的概念和现状以及嵌入式系统的开发模式，介绍了内核启动流程，对 Bootloader 启动进行了分析，移植了 Linux 内核，移植了文件系统 yaffs 以及自己的 LED 程序移植。以上烧写的文件均是官网下载的，这样可以使得 Linux 在开发板上更流畅的运行。本次设计成功的将嵌入式 Linux 系统移植到了 FL2440 开发板，文件系统运行正常，可通过触摸屏进行操作，LED 程序调试成功，并在开发板上得到了运行结果。对以后 Linux 开发打下了很好的基础。关键词：嵌入式系统 Linux Bootloader 文件系统AbstractAlong with the continuous renewal of electronic technology, the development of embedded system has become the mainstream of science and technology, under the requirements of embedded software development in the intelligent home appliance, digital mobile industry, the embedded integrated development environment has become the trend of the development of the embedded system at present. Linux as excellent open source operating system software has been widely applied to embedded operating system,whose featares such of practical applicability, portability, supporting large capacity memory, MMU (microcontroller) and I/O system have been reflected.Mainly from the PC to transplant process the embedded Linux system are studied on the development board, hardware platform is based on CPU: samsung S3C2440A, adopted ARM920T kernel, domina...