基于FPGA的USB接口数据采集系统设计  

Design of data acquisition system based on USB and FPGA

作　　者：张思杰[1] 赵泰[1] 汪振兴[1] 石岭[1] 

机构地区：[1]重庆大学通信工程学院,重庆400030

出　　处：《电子技术应用》2011年第5期98-100,共3页Application of Electronic Technique

摘　　要：介绍了一种高速实时数据采集系统的设计。该系统以FPGA作为逻辑控制的核心,以USB2.0作为与上位机数据传输的接口,能同时支持单端16路和差分8路模拟信号输入,最大采样率为200 kHz,12位的转换精度。描述了系统的主要组成和FPGA模块化设计的实现方法,并给出了其核心模块的时序仿真波形图。This paper introduces a high-speed and real-time data acquisition system. The system can support both single 16- route and differential 8-route analog signals input, with 200 kHz of maximal frequency and 12 bit of conversion accuracy, using FP- GA as the core logic control and using USB2.0 as the interface of data transmission with the host computer. The main component of the system and the implementing method of FPGA are described and the simulation waveforms of main modules are presented.

关 键 词：FPGA USB2.0 数据采集 转换精度 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]