基于FPGA的OV7620视频信息获取系统

为了满足实时、快速地获取并处理视频信息，提出以Altera公司Cyclone系列的EP1C12Q240C8为核心芯片构造硬件开发平台，使用Verilog HDL语言对CMOS图像传感器OV7620的驱动时序进行硬件描述。系统采用SCCB编程模式，建立FPGA芯片与CMOS图像传感器之间的通信，实现信号的控制与获取。为了实现在不同环境和需求下的操作要求，设定了CMOS图像传感器内部的相应寄存器和控制器。实验结果表明，该系统通过灵活控制CMOS图像传感器OV7620，为实现视频监控、工业现场监控等应用提供了稳定可靠的原始信息来源。

OV7620 Video Information Acquiring System Based on FPGA

In order to meet the real-time and quick requirements for video information acquiring and processing, a hardware platform based on Altera＇s Cyclone series EP1C12Q240C8 is introduced in this paper. And the driving timing for CMOS image sensor OV7620 with Verilog HDL language is described. By using SCCB programming model, the system establishes communication between FPGA chip and CMOS image sensor to achieve the control and acquisition of the signal. In order to achieve operational requirements in different environments and needs, the corresponding registers and the controller are set within CMOS image sensor. The experimental results show that the control of the CMOS image sensor OV7620 flexibly provides a stable and reliable source of raw information for video surveillance, industrial applications such as on-site monitoring.