S3C2440嵌入式音频系统设计与实现.pdf
文本预览下载声明
第36 卷第2 期 中国测试 Vol.36 No.2
2010 年3 月 CHINA MEASUREMENT TEST March,2010
S3C2440 嵌入式音频系统设计与实现
1 1 1 2
米韶华 , 康 东 , 杨小峰 , 戴树潭
(1. 成都理工大学核技术与自动化工程学院,四川成都 610059 ;2. 渤海装备第一机械厂华新检测公司,河北沧州 062658)
摘 要:设计开发的基于ARM 处理器可同时实现网络收音机和MP3 播放器功能的嵌入式平台。利用S3C2440 芯片的
特点,以ARM 处理器及其外围模块为硬件平台,采用嵌入式Linux 作为操作系统,用MPLAYER 播放软件,实现了
MP3 播放器及网络收音机的全部功能。在软件方面,为了更好支持对音频数据的播放,在Mplayer 源码中添加Madlib
库和Live 协议包。测试结果表明,系统性能良好,具有较好的市场应用前景。
关键词:嵌入式系统;网络收音机;MP3 播放器
中图分类号: ; 文献标识码: 文章编号: ( )
TN915.85 TN912.34 A 1674-5124 2010 02-0066-04
Research and implementation of embedded audio system based on S3C2440
1 1 1 2
MI Shao-hua ,KANG Dong ,YANG Xiao-feng ,DAI Shu-tan
(1. College of Automation ,Chengdu University of Technology ,Chengdu 610059 ,China;
2. Hebei Huasin Inspection Company ,Cangzhou 062658 ,China)
Abstract: An embedded platform has been designed based on ARM processor ,which realizes the functions of
Ethernet radio and MP3 player. Based on the characteristics of S3C2440 ,the system is designed by using ARM
processor and some outer module as hardware platform ,using embedded Linux as operation system ,and using
Mplayer as Ethernet broadcast software. In order to support a smooth process of data ,the Madlib and live protocols
has been added to the source software ,Mplayer. The test results indicate that the performance of this system is
excellent. It will have a wide foreground of market application.
Key words: Embedded syste
显示全部