全彩LED大屏同步显示控制系统的ZBTSRAM控制器设计  

ZBT SRAM Controller Design for Synchronous Display Control System of Large Full-Color LED Screen

作　　者：刘佳[1] 高杨[2] 蔡林飞 周岩[1] 李俊艳[1] 梁正恺 

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010 [2]中国工程物理研究院电子工程研究所,四川绵阳621900 [3]九洲国家企业技术中心,广东深圳518104

出　　处：《现代电子技术》2008年第13期179-181,共3页Modern Electronics Technique

基　　金：中国工程物理研究院科学技术发展基金重点项目(2007A05001)资助

摘　　要：在全彩LED大屏同步显示控制系统的设计中,需要采集视频源计算机显卡发送的视频图像信号,并将这些信号传输到远端大屏进行同步显示。由于视频信号速率很大及同步显示的实时性要求,采用ZBT SRAM作为高速视频信号的缓存。利用ZBT SRAM读写操作之间切换快的特点,提出了一种交替读写的存储方法。通过仿真调试表明,此方法极大的节省了存储空间,特别适合用于大屏分辨率大,实时性要求高的场合。In the design of synchronous display control system in large and full- color LED screen, it is needed to collect the video image signal sent by the display card of a computer as video source,and transmit the signal to far large LED screen for synchronous display. Because of the high speed of the video signal and the requirement of real - time for synchronous dis- play,using ZBT SRAM for the storage of high - speed video signal Using the advantage of quick switching between read and write operation, a storage method of alternant read - write is proposed. It is proved by the simulation debugging that this method can enormously save storage space. It especially fits occasion for large screen which has big resolution ratios and high real - time demand.

关 键 词：全彩LED大屏 同步显示 交替读写 ZBT SRAM 

分 类 号：TP332.3[自动化与计算机技术—计算机系统结构]