Research And Design Of High-speed Data Acquisition System Based On FPGA And USB3.0

With the development of science and technology,higher requirements of data acquisition system performance were put forward,such as faster data acquisition speed,higher signal sampling accuracy,more humanized operation,the flexibility and universality of the system,and so on.In order to improve the flexibility and versatility of data acquisition system,this paper did research on the system based on FPGA and USB3.0,and gave full play to the advantages of FPGA processing speed and high integration,as well as the superiority of USB3.0 transmission speed and flexible installation.A high speed data acquisition system based on FPGA + USB3.0 was designed.The main work of the subject research is as follows: 1.Learned about the development status of data acquisition systems both at home and abroad fully by consulting meterial.And put forward an improved scheme in view of the shortcomings existing in the current data acquisition system.2.Based on the research of the key technologies involved in data acquisition system,the requirements of the system were analyzed,and the overall design scheme of the system was put forward and its feasibility was demonstrated.3.The hardware and software of the system were designed and implemented,including data acquisition card,FPGA control logic,USB firmware and driver,system test software,and utility software.4.The function and performance of the system were tested by a series of experiments.The advantages and disadvantages of the system were analyzed through comparation with other data acquisition system.A set of high-speed data acquisition system based on FPGA and USB3.0 technology was designed.The system realizes the real-time data transmission and storage from the acquisition card to the computer,and the USB interface greatly increases the flexibility of the system.The test results show that the system meets the design requirements.