摘要
阐述一个基于DSP的四路实时音视频编码终端的硬件设计方案和实现过程.重点讨论TM S320DM642主处理芯片和音视频处理系统的设计,另外对存储电路,网络接口,IIC接口和电源等模块也做了深入讨论.最后对硬件做了信号仿真,指出电路设计和PCB布局布线的关键要点.软件测试结果表明视音频主观质量较优,系统硬件工作稳定可靠,具有通用性.
The paper proposed a scheme of hardware design of a four-channel realtime video coder.The design of core Chips of TMS320DM642 and audio/video chips were focused on.In addition storage,Ethernet,IIC and power source modules were discussed.Finally signal simulation was discussed and some keys of PCB layout and route were proposed.The software test proved the hardware worked well and produced good visual quality of audio/video.
出处
《小型微型计算机系统》
CSCD
北大核心
2010年第3期538-541,共4页
Journal of Chinese Computer Systems
基金
湖北省自科基金项目(2007ABA311)资助
