摘要
首先分析了便携式MP3播放器的工作原理及其系统构成,接着介绍了一种基于51单片机的MP3播放器设计方案。采用AT89C51SND1C单片机,其片内集成了MP3解码器,使用K9F1208闪存作为外存储器,放音电路采用CS4330,音乐文件通过播放器上的USB接口从PC机上直接下载。该方案设计简单,性价比高、低功耗、易扩展。
A MP3 player design scheme based on 51 microcontroller is proposed after analyzing the working principle and system composition of the portable MP3 player. The design uses the AT89C51SND1C microcontroller as the MP3 decoder,the K9F1208 flash as external memory, the CS4330 as the sound playing circuit. The music file can be downloaded from PC through USB interface of the player. The scheme is simple, eost-effeetive,low power consumption and easy to expand.
出处
《单片机与嵌入式系统应用》
2015年第10期65-67,共3页
Microcontrollers & Embedded Systems
