基于TMS320C6201的DMA数据传输优化  

DMA data transmission optimization based on TMS320C6201

作　　者：冯宇红[1] 李炜[1] 徐晶[1] 李波[1] 

机构地区：[1]北京航空航天大学计算机系数字媒体室,北京100083

出　　处：《电视技术》2003年第1期14-16,共3页Video Engineering

基　　金：受国家自然科学基金(69974005);国家高技术研究发展863计划专项经费(2001AA114142);教育部博士点基金(20000611)资助

摘　　要：以一个实际的视频编码系统为背景,提出了基于TMS320C6201DSP芯片的3种DMA方式数据传输方案,并对3种方案进行了比较分析与实验。实验结果表明,3种DMA方案不仅具有较高的数据传输效率,而且对各类视频场景具有通用性。Considering cost,size and performance,most real-time video encoder systems are designed for working on hard-ware.While in hardware implementations,how to make the best of enormous video data during encoding is one of the most important issues when the system is being designed.In this paper,we propose three methods of DMA data transmission in video encoder based on C6201DSP of Ti Inc.for a real video encoder system.Further more,we experiment on these three methods.Experiment results show that the methods not only have high performance but also adapt to various video scenes.[

关 键 词：TMS320C6201 DMA 数据传输优化 数字图像通信 视频编码器 数字信号处理 直接存储器存取 GOMB 

分 类 号：TN919.8[电子电信—通信与信息系统]