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基于SCCB总线配置的FPGA视频采集系统设计

发布日期:2014-07-08| 阅读次数: | 关键字:38-4 | 作者:杨会建,杨阳,张环,朱莹 | 来源:长春理工大学学报:自然科学版 2015 Vol.38(4): 097-100

基于SCCB总线配置的FPGA视频采集系统设计

杨会建,杨阳,张环,朱莹

(长春理工大学 电子信息工程学院,长春130022

摘要:为了提高视频采集的实时性,利用EP2C8Q208C8 作为主控芯片来控制CMOS 传感器OV7670,采用Verilog 语言构建了硬件描述电路。在研究SCCB 通信协议的基础上,建立了FPGA 和视频采集传感器之间的通信,且对OV7670 内部寄存器进行了相关配置,实现在不同模式下视频信号的采集。利用SignalTap IIOV7670 视频采集的动态数据进行了实时捕捉,将捕捉波形图对比时序进行了分析。实验结果表明,该视频采集系统除具有低成本、低功耗等优点外,还具有很好的可行性、实时性。

关键词:SCCB 总线;FPGA;通信协议;视频采集

中图分类号: TP302.2 文献标识码:A 文章编号:1672-9870201504-0097-04

 

Design of FPGA Video Acquisition System

Based on SCCB Bus Configuration

YANG HuijianYANG YangZHANG HuanZHU Ying

School of Electronics and Information EngineeringChangchun University of Science and TechnologyChangchun 130022

Abstract In order to improve the real-time video acquisition.In this design EP2C8Q208C8 is chosen as the master chip to control the CMOS sensor OV7670. The hardware description circuit is constructed by Verilog language. On the basis of the research SCCB communication protocolthe communication between FPGA and video capture sensor is  stablished. And the internal register of OV7670 is configured to realize the collection of video signal in different mode. SignalTap II is used to capture the dynamic data about OV7670 video acquisition. A comparison is made between the capture waveform and video acquisition sequence. The experimental results show that the video acquisition system  besides has the advantages of low costlow power consumptionalso has the very good feasibilityreal-time.

Key wordsSCCB busFPGAcommunication protocolvideo acquisition

 

作者简介:杨会建(1989-),男,硕士研究生,E-mailjsxhhjy@163.com

通讯作者:杨阳(1979-),男,副教授,E-mailcloneyang@126.com

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