基于DM642+AIT2138平台的高速多路视频合成显示系统设计  

Design of High-Speed Multi-Video Fusion System Based on DM642+AIT2138

作　　者：杨展辉[1] 马涛[1] 高青[1] 陈珍焰[1] 

机构地区：[1]西安电子科技大学机电工程学院

出　　处：《可编程控制器与工厂自动化（PLC FA）》2007年第11期89-91,共3页Programmable controller & Factory Automation(PLC & FA)

摘　　要：设计了一个四路、支持VGA输入和S-video输入的高分辨率的视频采集、处理和显示系统。系统的核心部分是DSP处理模块,用来完成合成显示算法,采用了TMS320DM642 DSP。此外采用视频编解码芯片AIT2138,SAA7110和ADV7125等,完成视频制式转换,并在显示终端上进行单屏多窗口显示。利用串口通信和CPLD来完成逻辑控制和模式切换。A four-input high-definition video capturing, processing and displaying system which supports the inputs of VGA and S-video is realized. The core part of the system is the DSP processing block, in which TMS320DM642 DSPs are used to complete fusion display algorithm.Video encoding＆decoding chips, including AIT2138, SAA7110 and ADV7125, are also used to accomplish the transforming of video formats and display the videos in multi-windows on one screen. Serial-port communication and CPLD are adopted to fulfill logic control and mode switching.

关 键 词：高分辨率 视频合成 DM642 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]