基于DSP和FPGA图像采集技术的研究

本文介绍了一种基于可编程逻辑器件(FPGA)和数字信号处理器(DSP)的图像采集系统。采用增强型视频输入处理芯片SAA7111A完成对视频信号的模数转换,以FPGA为数据逻辑控制单元,结合DSP控制实现了对图像的实时采集传输。介绍了系统的整体结构。并详细讨论了FPGA的控制逻辑,DMA图像存取等工作原理。

A study on image acquisition technology based on DSP and FPGA

This paper present an image acquisition system based on DSP and FPGA.In the system enhanced video input processor SAA7111A is used to accomplish the analog to digital conversion of video signals,and FPGA is used as a main logic control unit.The data acquisition and transfers for video signal are realized by FPGA and DSP.The system structure is introduced in brief.And the control logic of FPGA,image access via DMA are analyzed in detail.