FPGA-based Image Data Acquisition System

High-performance low-cost image acquisition and processing systems in the field ofautomatic measurement and control, device detection, security monitoring and other industrialhuge demand. Compared to the CMOS image sensor, CCD image sensor has obviousadvantages in terms of sensitivity, resolution, noise control and technical maturity and so on.With the development of CCD technology, CCD camera target tracking application areasrobot navigation, autopilot, traffic monitoring, etc., have been widely used. CCD as a corecomponent of the system, requires a higher image quality and higher transmission speed, butalso increases the cost. At the same time the transmission speed of the digital image signals ahigher requirement. PCI local bus because of its high speed, high reliability, low cost, goodcompatibility, etc., the dominant standard in all kinds of computer bus, using a standard PCIinterface design related project development has become the preferred option.PCI is a high-performance computer local bus, with a high transmission speed (32bitwhen to33MHz, the transmission speed of up to132MB/s), ideally suited for graphics,images,3D animation and high-speed peripherals such as network needs. Thus, PCI bus hasbecome the mainstream of the computer bus. Currently the design of the high-speedperipheral devices are based on the bus structure.Analog signal based on PCI bus is designed CCD image acquisition system, imageacquisition. FPGA logic acquisition system to the control center, using the AFE circuitAD98545B conversion chip converts the analog signal into digital image data, after thedual-port RAM buffer, data from the PCI bus into the computer module, while the use ofWDM is designed PCI drivers.In this thesis, the design and implementation of functional modules for clues to explainthe design of the dual-port RAM, each step of the simulation and comprehensive verification.There are studies TCD1703C by driving timing, use of Verilog HDL design and thepreparation of the drive module, followed by a PCI bus design, through research, to completethe design PCI interface and incentive program was completed by writing function PCIinterface emulation, and post-layout timing simulation, and the use of Altera’s PCIdevelopment board has been tested and implemented to complete the requirements of the PCIinterface functions. Finally, the paper design and realization of the device drivers were studied. Firstintroduced the device driver technology WINDOWS2000environment, including thedevelopment and current status of the driver, a detailed discussion of the structure anddevelopment of appropriate technologies WINDOWS2000under WDM drivers. Finally, theworking characteristics of Altera’s PCI development board, given the design of the devicedrivers and applications, debugging, testing process. Research development S1300PCIinterface FPGA-based development board supporting software drivers, use Driver Studio haswritten a driver to complete the development board to store data from computer memory tosolve the problem of real-time display real-time data acquisition and image.