摘要
在众多的实时系统中,都对主机和DSP之间的数据通信速度有着很高的要求,PCI总线可以132 MByte/s的速度进行数据传输,成为解决高速数据通信的首选。本文讨论了基于TMS320DM642EVM的PCI数据通信的原理、数据通信的基本实现方法,并使用EDMA通道来实现DSP端片内和片外存储器之间的数据传输。
High speed of data communication between DSP and the host is required to meet the demand of most real-time systems.PCI bus technology is a solution to this problem.The principle of data communication based on PCI has been showed,as well as the realization procedure.Meanwhile,the technology of data transfer between SDRAM and L2 by EDMA has also been realized.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2005年第z1期196-200,共5页
Optics and Precision Engineering
基金
云南省省院省校科技合作项目(2004YX16)
