一种基于TMS320DM642视频采集模块的设计
首发时间:2009-10-23
摘要:针对当前视频监控系统视频采集的要求,本文介绍了一种基于TI公司的TMS320DM642数字信号处理器为核心的视频采集模块。视频输入编码芯片采用Philips公司的SAA7111芯片,硬件方面介绍了系统的原理和硬件接口设计。软件方面介绍了TI公司开发的DSP/BIOS多任务操作系统和一种用于驱动开发的模型,类/微驱动模型,并根据此种模型进行了软件的设计。实验结果表明,视频采集流畅,满足了视频的实时采集的要求,本设计在视频监控领域有着较大的应用价值。
关键词: 视频采集 TMS320DM642 SAA7111 类/微驱动模型
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Development of Video Capture Module Based on TMS320DM642
Abstract:To suffice the demand of video capture of video surveillance , this paper introduce one type video capture module that based on the TMS320DM642 digital signal processor produced by TI company. The video input encoder chip is the SAA7111 produced by Philips . For the hardware, introduced the principle of system and hardware connection design. For the software, introduced the TI company’s DSP/BIOS multi-tasks operating system and the model using for driver development, Class/Mini-driver model, and designed the software based on the model. The experiment result shows that the video capture is fluent, realized the real-time video capture. There is very good application prospect in the video surveillance .
Keywords: Video capture TMS320DM642 SAA7111 Class/Mini-driver model
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