摘要
针对音频系统中普遍存在音质差、噪声大等问题,介绍了基于S3C2440A和UDA1341TS构成嵌入式音频系统的一种实现方案.研究了S3C2440A的IIS总线接口,分析了UDA1341TS的工作模式,给出了S3C2440A和UDA1341TS的硬件接口电路,其中重点阐述了音频驱动的实现.该嵌入式音频系统设计实现了录音、播放和调节音频效果等功能,嵌入式音频电路以及音频处理程序已用于手持设备上.
For the universal problems such as poor tone quality and high noise in an audio system,the embedded audio system based on S3C2440A and UDA1341TS CODEC is introduced.The IIS interface of S3C2440A,the work modes of UDA1341TS,the hardware design of S3C2440A with UDA1341TS,as well as the key features of the driver for audio devices under WINCE are provided in this paper.The audio system realizes the functions of recording,playing audio,tuning up,etc.The design of the hardware and software has been used on handheld devices successfully.
出处
《应用科技》
CAS
2011年第10期39-43,共5页
Applied Science and Technology
基金
湖南省自然科学基金资助项目(04JJ40041)
