Research And Design Of Data Acquisition And Storage System Based On Domestic FPGA

Data acquisition and storage system plays an important role in national defense,military,and other fields.It is very important for the collection and storage of key data and the subsequent analysis and experiment.At present,the core control module of the commonly used data acquisition memory is designed with FPGA,most of which are imported Xilinx or Intel FPGA,resulting in a very high dependence of the core components on foreign imported products.Given the current international situation and the requirements of localization,this paper proposes and designs a data acquisition and storage system based on domestic FPGA.The main function of the data acquisition and storage system based on domestic FPGA designed in this paper is to collect LVDS signal and store it in the data storage module,and the high-speed data read-back module based on USB3.0 is designed to improve the speed of the computer to read data.Firstly,this paper analyzes the development status of data acquisition and storage system at home and abroad and the development status of domestic FPGA,analyzes the functional requirements of this paper,conducts in-depth research on domestic FPGA,USB3.0,LVDS,and other technologies,and makes an overall design scheme according to the working principle and basic theory of the system.Through comparative analysis,the domestically made FPGA of Logos series PGL22 G is used as the master control module,which can meet the requirements of this design.Then,the hardware platform of the system is built.The domestic FPGA is used as the main control module to control and receive LVDS interface data and store it in Flash.The data read-back part uses USB3.0 bus transmission mode,and the USB3.0 communication chip can realize high-speed data transmission between FPGA and computer.This article mainly from the logical key technology research,the system hardware design,software design aspects such as research and design in detail respectively,and finally set up the system test platform,on each module function of the system and the overall function were tested respectively,and the test results can meet the design requirements,realized with an LVDS data collection,storage,read,and other functions,has higher application value.