The High-speed Data Acquisition System Based On Pci Express Design

In the electronic experiment, we need to send large amounts of data to the microprocessor for processing。This subject is to study how to expand the backend digital transmission capacity。This system mainly uses the latest PCI Express bus to transfer the data converted from the card to the computer based on2.5Gbps rate, with the processing power of the CPU and the depth of the memory storage in the computer to accurate display and process the wave data。 The main contents include:1. The PCI Express hardware design the high speed data acquisition card: Described how to select the chips and structure the circuit。 The most important part is how to transfer data based on the PCI Express bus in the FPGA of Spartan6, the role of each module in the FPGA and the external circuit structures。2. Computer software design:About write the acquisition system friver and display program by VC++language。First send the data to the memory,and then call these memory in the VC++procedure, and use a variety of library functions provided by the CVI to display the data in the interface, which focus on the display platform method、 data process and the host computer for data processing。...