| 基于Nios II的数字音频录放系统的设计 |
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| 引用本文： | 袁海林. 基于Nios II的数字音频录放系统的设计[J]. 微计算机信息, 2007, 0(14) |
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| 作者姓名： | 袁海林 |
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| 作者单位： | 湖北民族学院 |
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| 基金项目： | 湖北省教育厅重点项目(2003A008) |
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| 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。
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| 关 键 词： | NiosII 嵌入式系统 SOPC I2C总线 数字音频 |
Designing of the Digital Audio system on Nios II |
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| YUAN HAILIN. Designing of the Digital Audio system on Nios II[J]. Control & Automation, 2007, 0(14) |
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| Authors: | YUAN HAILIN |
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| Affiliation: | YUAN HAILIN |
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| Abstract: | This paper introduced a scheme of design an embedded digital audio recording and replaying system on SOPC technology.By configure NiosII soft core CPU and some corresponding interface modules on a PFGA to construct an embedded system' s hard-ware,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 flexibil-ity and good expansibility and quick data processing speed. |
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| Keywords: | NiosII embedded system SOPC I2C bus digital audio |
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