【摘要】 为实现全数字化视频数据采集,设计了一种基于DM642数字信号处理器的视频采集系统。给出了视频输入输出接口电路、网络通讯接口电路及印刷电路板(PCB:Print Circuit Board)的设计,并基于DSP/BIOS(Digital Signal Process/Basic Input Output System)开发了系统驱动程序。该系统从CCD(Charge Coupled De-vice)摄像头采集图像数据送入SDRAM(Synchronous Dynamic Random Access Memory),用户可运用系统提供的API(Application Programming Interface)函数对数据进行处理,处理结果可以在PAL/NTSC(Phase Alterna-ting Line/National Television System Committee)显示器上显示。测试结果表明,该系统性能稳定,为视频采集系统提供了一个良好的扩展平台。更多还原

【Abstract】 Aim at digital video data capture,a video capture system based on DM642 Digital Signal Processing is designed.The video capture and display interface circuit,the network communication interface circuit,the PCB(Print Circuit Board) designing,and the driver programme based on TI DSP/BIOS(Digital Signal Process/ Basic Input Output System)are also developed.System can transit the video data from CCD(Charge Coupled Device) camera into SDRAM,user can process the data by API(Application Programming Interface) of system,and the result can be displayed on PAL/NTSC(Phase Alternating Line/National Television System Committee) display.The design of this system offer a nice extend platform for video capture system.更多还原