Abstract: The paper proposes a project of drive circuit of realtime image capturing and displaying based on FPGA. The OmniVision′s OV7670 is chosen as CMOS image sensor, while Altera′s Cyclone II series EP2C8Q208C8N as the logic control chip. The drive circuit has been verified by Modelsim. The simulation results show that the system meets the requirements of timing and stable image output perfectly.

Key words: image sensor; field progammable gata array (FPGA); I2C; CMOS image sensor