摘要在多媒体这一广阔的领域里,音频占据着重要的一片领地,MP3是音频领域中最经典的一个重要分支。论文主要研究了ARM7处理器的原理,并针对基于SEP3203开发平台中液晶显示屏和AC97编解码芯片的硬件原理进行了分析,阐述了uC/OS-II移植的原理与应用。最后结合硬件环境开发出可行的MP3音频应用。其中MP3播放控制功能是通过在电阻式触摸屏上进行操作来实现的。由于通过软件解码的方式实现的MP3播放器不同于专用的硬件解码器,前者的应用拥有更好的可扩展性,因此可以在SEP3203平台上添加更多的应用以形成一个丰富多彩的个人数字助理(PDA)。关键词 SEP3203 ARM MP3 uC/OS-II PDA8666
毕业设计说明书(论文)外文摘要
Title The realization of MP3 player on SEP3203 platform
Abstract
In the vast field of multimedia, audio plays an important role in this territory. MP3 is also a significant branch which is one of the most classic in the audio field. In this paper the research of the hardware theory of ARM7 processor is mainly focused, the hardware principles of LCD and AC97 CODEC chip on the SEP3203 platform are analyzed, and that how to deal with the uC/OS-II transplantation and applications is also presented. Finally feasible MP3 audio applications are developed combining with the specific hardware environment. Wherein, the function of control on MP3 is realized through the operation on a resistive touch screen. Because the realization of MP3 player through software decoding method is different from dedicated hardware decoders,the applications on the former have a better scalability, more applications can be added on the SEP3203 platform to form a rich and colorful Personal Digital Assistant(PDA).
Keywords SEP3203 ARM MP3 uC/OS-II PDA
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