摘要
基于TI公司的TMS320DM642和TVP5150视频解码器实现了实时视频采集系统。该系统以复合电视广播信号(CVBS)作为输入,经过TVP5150视频信号解码和DM642的视频口输入控制,最后通过直接内存存取(DMA)将数据搬移存入到系统的SDRAM中,作为下一步的压缩或传输。详细介绍了系统的硬件和软件设计,包括TVP5150的配置方法,DM642的I2C接口和视频口的设计过程等。最后通过实时图像采集实验验证了系统设计的正确性。
This paper realized a real-time video acquisition system by TI＇s TMS320DM642 and the video decoder of TVPS150. The system took Composite Video Broadcasting Signal （CVBS） as input, which is decoded in TVP5150, and then input controlled by DM642＇s video port, finally shifted into SDRAM by Direct Memory Access （DMA） for the next compression or transmission. This paper introduced in detail the system＇s hardware and software design including the configuration of TVPSIS0, and the design of DM642＇s I2C and video port connector. Finally the system design is verified correct through real- time image acquisition experiment.
出处
《计算机应用》
CSCD
北大核心
2013年第A02期302-304,共3页
journal of Computer Applications
基金
国家空间科学中心"五个重点培育方向"课题(Y22113D81S)
