摘要
介绍了一种基于SOPC技术的嵌入式数字音频录放系统的设计方案。该系统通过在FPGA芯片上配置NiosII软核CPU和相关的接口模块来实现嵌入式系统的主要硬件结构,并结合系统的软件设计来控制音频编/解码芯片和SDRAM,实现了音频信号的A/D、D/A转换、存储、回放等功能。由于采用了SOPC和DMA控制技术,该系统具有设计灵活、扩展性好和数据处理速度快等优点。
This paper introduced a scheme of design an embedded digital audio recording and replaying system on SOPC technology. By configure NioslI soft core CPU and some corresponding interface modules on a PFGA to construct an embedded system＇ s hardware, and combine software programming to controlling audio encode and decode IC WM8731 and SDRAM ,System realized A/D,D/A conversion, saving and replaying of audio signal . Due to using the SOPC and DMA technology, the system has high design flexibility and good expansibility and quick data processing speed.
出处
《微计算机信息》
北大核心
2007年第05Z期129-130,100,共3页
Control & Automation
基金
湖北省教育厅重点项目(2003A008)
