Video acquisition between USB 2.0 CMOS camera and embedded FPGA system

Abstract : In this paper, we introduce the hardware implementation of video acquisition in a sensor node of wireless sensor network with the help of USB 2.0 interface. The USB 2.0 video acquisition is based on the CY7C67300 controller and the DCC1545M image sensor. In this paper, we detail the hardware architecture and the application program design in a sensor node using field-programmable gate array (FPGA) board and USB 2.0 interface. The CY7C67300 controller is the suitable choice for FPGA Virtex 4 and 5 based USB peripherals. A simple interface module capable of transferring data rates above 400 Mbits/s is implemented to communicate with the CY7C67300 controller. In order to use the developed module, in Xilinx embedded design, we provide a custom peripheral which includes the CY767300 interface as its core and additional logic for the connection to the external peripheral controller (EPC) and then the processor local bus (PLB).