设计了一种基于PCI总线的CMOS图像传感器OV6620的驱动系统，详细介绍了PCI总线及其芯片PCI9054的特点及应用，给出了PCI总线的驱动程序和应用程序的设计方法。讨论了CMOS图像传感器OV6620的驱动研究，给出了FPGA对OV6620的驱动设计和时序。实验结果表明，基于PCI总线的图像采集系统可以大幅提高图像数据的传输速度，解决了图像采集的瓶颈问题。

A kind of driver design method of CMOS image sensor based on PCI bus was introduced. PCI bus, the characteristic and basic using method of PCI9054 chip were presented in detail. Furthermore, the design methods of driver and application of PCI bus were given. Meanwhile, the driver research of image collection sensor OV6620 was discussed, and the designs and timing diagram of FPGA for OV6620 were given. The results show that the design of the image real-time collection system based on PCI bus can be used to accelerate the speed of image data transmission, and the bottleneck of image real-time collection was settled.