基于FPGA和USB的数据采集系统设计

Data Acquisition System Design Based on FPGA and USB

以逻辑器件FPGA和USB2.0芯片CY7C68013为核心,设计了4路模拟输入、12位数字精度、每路模拟输入采样速率均为250 kBPS的数据采集系统。该系统能够在板卡上实现信号的采集及前端处理,并能通过USB总线与上位机通信,实现数据的存储、显示及后端处理。在数据采集与传输模块的设计中,给出了数据采集和传输的原理图及其电路的详图,详细的介绍了FPGA在数据采集系统中的实现过程。

Take the logical component FPGA,USB2.0 chip and CY7C68013 as cores.This paper designed 4 group analog inputs and 12 digital precisions.Each group analog input sampling speed is 250 kBPS data acquisition systems.This system can realize signal gathering in the board card and front end processes,and can through the USB main line and the superior nmchine correspondence,the system realizes the data memory,the demonstration and rear end processes.In the data acquisition and in the transmission module＇s design.has given the data acquisition and the transmission schematic diagram and electric circuit＇s detail,detailed introduction FPGA has realized the process in the data acquisition system.