基于PCI EXPRESS总线的视音频采集卡的设计  

Design of Video & Audio Collection Block Based on PCI EXPRESS Bus

作　　者：强俊[1] 楚宁[1] 周鸣争[1] 

机构地区：[1]安徽工程科技学院计算机科学与工程系,安徽芜湖241000

出　　处：《计算机技术与发展》2007年第5期79-82,共4页Computer Technology and Development

基　　金：安徽省教育厅产业化贴息项(2004cy16)

摘　　要：在数字电视领域,对信号传输实时性、误码率及可靠性要求很高,并且随着CPU主频的发展,传统的PCI总线已渐渐不能满足带宽和传输精确性的要求,文中通过分析MPEG-2传输流的特点以及传统总线和PCI EXPRESS总线的性能,提出了一种在视音频采集卡中采用PCI EXPRESS总线技术的设计方案,该方案利用FPGA中已有的高速收发器模块及现有的PCI EXPRESS IP内核来设计和配置,可实现数字电视制播系统中信号传输实时性和可靠性的要求。In the field of digital - TV, the demand of signal transmission＇ s real time, error- code rate and dependability is very high. And with the development of CPU, traditional PCI bus couldn＇ t satisfy with bandwidth and transmission accuracy gradually. Analyses MPEG -2 TS＇s characteristic and the performance of traditional bus and PCI EXPRESS bus, and proposes a project which using PCI EX- PRESS bus technology in video ＆ audio collection block. This project designs and configures by using high transceiver module of FPGA and PCI EXPRESS IP core. It can realize signal transmission＇s real time and reliability m digital- TV s broadcasting system.

关 键 词：PCI EXPRESS总线 PCI总线 传输流 FPGA 

分 类 号：TN949.197[电子电信—信号与信息处理] TP391[电子电信—信息与通信工程]