摘要
针对便携式图像系统中视频信号采集与数字处理的需求,设计了以TMS320VC5410(DSP)为核心的通用采样处理系统。利用VC5410的6通道DMA(直接内存存取)控制端口,实现了信号的高速并行采样,其采样率最高可达20MBps。介绍了并行采样系统硬件组成、DMA控制端口逻辑关系以及高速并行采样的编程实现。
This paper discusses the design of a high-speed parallel sampling processing system based on general DSP,which is used for the acquisition and digital processing of video frequency signals in portable image applications.Its high-speed parallel sampling is realized by means of the6-channel DMA(Direct Memory Access)control port.The data transition rate of this system is up to20MBps.In this paper,the system's hardware structure,the logic of the DMA control port and some relevant programs are given in detail.[
出处
《电视技术》
北大核心
2003年第11期84-85,91,共3页
Video Engineering
基金
上海市高等学校科学技术发展基金项目(No.03DZ18)
