基于嵌入式Linux的MP3播放器的设计与实现-毕业设计2.doc

基于嵌入式Linux的MP3播放器的设计与实现-毕业设计 Design and Implementation for a MP3 Player Based on Embeded Linux A Dissertation Submitted to Nanjing Institute of Technology For the Academic Degree of Bachelor of Science By MinXian Zheng Supervised by Lecturer AiJun Sha KangNi College Nanjing Institute of Technology Jun 72013 摘 要 伴随嵌入式系统的持续发展以及普通用户对多媒体应用越来越旺盛的需求具有多媒体播放功能设备逐渐成为嵌入式系统中必不可少的重要功能此毕业设计将设计一个基于嵌入式Linux的MP3播放器系统硬件采用基于ARM架构的开发板 论文首先介绍了嵌入式操作系统的必威体育精装版发展嵌入式LinuxARM的特点以及Qt等的相关知识重点介绍了如何使用开源播放器MPlayer解码库libmadQt Creator工具来开发一个有图形界面的MP3播放器还介绍了如何移植U-bootLinux内核Qt和文件系统并在移植好之后烧写到开发板之上得到一个能独立运行在开发板上的MP3播放器 系统测试表明该MP3播放器能实现如下功能播放暂停停止音量调节退出程序和歌曲播放时间系统运行稳定基本达到了设计要求 关键词嵌入式Linux移植Linux Qt Abstract Along with the sustainable development of the embedded system and the increasingly demands for multimedia applications an electronic equipment has a functions of playing songs gradually become indispensablyThis design will introduce an implemention for a MP3 player based on embedded Linux system and an ARM architecture development board This Paper introduces the latest development for embedded operating system embedded Linux the characteristics of the ARM Qt and other related knowledgesEspeciallythis paper displays how to use the open source player MPlayer a decoding library called libmad Qt Creator tools to develop a graphical interface of an MP3 playerIn this paper the work of transplant the boot the Linux kernel Qt and file systems is also introduced After all system images are burned into the development board one development board can run a MP3 player is obtained System test shows that this MP3 player can realize the following function Play Pause Stop Volume Control Exit and Show Songs Playing StateThe whloe system runs stably and reached the basic design requirement Keywords embeded LinuxtransplantLinuxQt 目 录 第一章 绪 论 1 11 课题研究背景和意义 1 12 嵌入式系统发展和现状 2 121 嵌入式操作系统 2 122 嵌入式Linux和Linux 3 123 ARM的介绍 3 124 Qt的介绍 4 13 论文所做的工作和结构 5 131 论文所做的工作 5 132 论文结构 6 第二章 系统总体