The Design And Implementation Of Embedded MP3Player System Based On AX2010Decoding Chip

Along with the wide application of the embedded system, embedded audiosystem is also more and more application, this paper designs and realizes an basedon audio decoder chip AX2010embedded MP3system. The system is the mainbody of the embedded real-time operating system uC/OS-II and AX2010chip,based on audio decoder chip AX2010and embedded operating system uC/OS-IIplatform development MP3system. Embedded MP3system is a through the MP3songs to let users get music enjoy embedded audio system, users through thebroadcast SD/MMC card or USB disk on the music files to enjoy music.This paper introduced the topic source, background and significance, thispaper expounds the embedded MP3system based on the chip selection anddecoding chips embedded audio AX2010MP3system. From the current embeddedaudio technology at home and abroad and the development of embedded system andthe development of the current situation of this topic statement feasibility. From theuser’s point of view, the demand analysis of this topic. To music play function,external equipment connect function and system control function, details of thefunctional requirements of the system is given, and the key technology system.This paper focuses on audio decoder chip AX2010is statement of embeddedMP3system design and realization. First introduced the system function andimplementation scheme, and the hardware and software environment and systemarchitecture. The system is divided into three levels, and each level of functionmodule design, and expounds the concrete realization of the functional modules. Byreal-time module, read module, audio decoding module and system control module.Real-time module mainly is porting uC/OS-II and application development. Readfile module contains file system support and storage device drivers. Audio decodingmodule contains MP3decoding and sound processing. System control modulecontains the user interface and system automation processing. This paper alsorealized through the software save hardware cost, solve the low cost of the marketsystem requirements.In paper finally, this system has made the detailed test report, and systemsummary, and then based on the system’s performance in the test, the system isproved to market volume production measure, and also for the future of the system,the development trend for further discussion.