基于STM32的便携式音乐播放器设计

便携式播放器设计应用

编号：

毕业设计说明书(论文)

课 题： 便携式音乐播放器设计

学 院： 电子工程与自动化学院 专 业： 电子信息科学与技术 学生姓名：学 号： 指导教师：

职 称： 高级研究员

题目类型：

2013 年 4 月 20 日

便携式播放器设计应用

摘 要

随着电子行业的迅猛发展,人们对消费类电子产品的需求越来越高,多功能便携式MP3也越来越受大众的青睐。根据消费者的爱好需求，各种多功能的MP3层出不穷，其尽可能的吸收照相机、手机等电子产品的其它功能。本次系统设计采用ARM Cortex-M3内核的STM32F103VET6作为微控制器、SD卡作为存储介质、VS1003作为音频解码芯片以及TFT彩晶屏作为人际交互设备，设计一款可播放mp3、wav文件格式的便携式音乐播放器，并实现相关功能。本次设计的重点是了解FAT文件系统的构造、SD卡的读取、VS1003芯片的解码过程、人机交互设备的控制操作以及各主从机之间的通讯方式。其中，STM32F103系列集成了低功耗、IO资源多、通信接口多、体积小、价格适中等多项优点；随着日本松下、东芝及美国SanDisk公司于1999年8月共同研制，SD卡被广泛应用与闪存介质，并易于读取；VS1003是一个多功能的mp3、wav解码芯片，自带DAC，具有无相位差的立体声输出；TFT显示屏集成了触控特点使得人机交互更为简便、程序编写更为简洁。

关键字：STM32F103VET6;SD卡;VS1003解码芯片；TFT彩晶屏；便携式音乐播放器。

便携式播放器设计应用

Abstract

With the rapid development of the electronics industry . The consumer electronic products have been used more often by people because of their growing demand. It’s popular to have a Multi-function portable MP3 for people with the increasingly favored by the public . A variety of multi-function MP3 after another according to the demand of consumer . They were produced with absorb the other features of the cameras , cell phones and other electronic products as much as possible. The system used the ARM Cortex-M3 core STM32F103VET6 as microcontroller , SD card as the storage medium , VS1003 as human interaction as the audio decoder chip , and TFT display screen equipment to make a Portable Music Player with the function that could play wav and mp3 files in this design, and some related functions . The difficulty lie in design is focused on understanding the structure of the FAT file system , how to read SD card , the process of decoding in VS103 chip, the control of human-computer interaction and the communication by master and slave. Among of these devices ,STM32F103 series integrates a low-power, IO resources , communication interface ,small size , affordable and many other advantages . Panasonic , Toshiba , SanDisk Corporation and the United States develop together in August 1999 . SD cards are widely application and flash media , and easy to read . VS1003 is a mp3 , wav decoder chip with many function, built-in DAC and stereo output with no phase difference . TFT as a display make the human-computer interaction easier and programming more concise by integrating touch features.

Key words : STM32F103VET6 ; SD card ; VS1003 decoder chip ; TFT display screen ;

Portable Music Player

便携式播放器设计应用

目 录

引言 ..................................................................................................................................................................... 1 1 设计任务与思路 ................................................................................................................................. 2

1.1 设计任务 ................................................................................................................................................ 2 1.2 设计思路 ................................................................................................................................................ 2

2 器件选择和系统框图 ...................................................................................................................... 2

2.1 器件选择 ................................................................................................................................................ 2 2.2 系统框图与概述 .................................................................................................................................. 2

3 硬件电路设计 ....................................................................................................................................... 3

3.1 电源模块 ................................................................................................................................................ 3 3.2 微控制器模块 ....................................................................................................................................... 4 3.3 SD卡模块 ............................................................................................................................................... 5 3.4 音频解码模块 ....................................................................................................................................... 6 3.5 音频放大模块 ....................................................................................................................................... 7 3.6 彩晶显示模块 ....................................................................................................................................... 8 3.7 复位模块 ................................................................................................................................................ 9

4 FAT文件系统 ........................................................................................................................................ 9

4.1 FAT文件系统简介 .............................................................................................................................. 9 4.2 FAT文件系统的读取操作 ......................................................................................................... …… 此处隐藏：14745字，全部文档内容请下载后查看。喜欢就下载吧 ……