基于FPGA的数据采集与显示系统的设计

摘要

Considering data display requirement in the electronic measurement field,this paper propsed a design resolution of data acquisition and VGA (video graphics array) waves display based on FPGA( field programmable gate array). This paper used a single core chip of StratixⅡ series FPGA,achieved three main control modules,data acquisition A/D conversion,double port RAM storage and VGA display,which realized the system function of data acquisition and display with external signal regulation circuit, A/D and D/A converters. The design has the characteristic of simple periphery circuit,stable performance,high reliability and easy expansion function. Signal waveforms can be displayed clearly according to the experimental results.%针对电子测量领域数据显示的需要,提出一种基于FPGA的数据采集与VGA波形显示系统的设计方案.用单片StratixⅡ系列FPGA为核心芯片,完成系统数据采集A/D转换控制、双端口RAM存储控制及VGA显示控制3个主要模块.配合片外信号调理电路、模数转换器和数模转换器实现系统数据采集与显示功能.该设计外围电路结构简单,性能稳定可靠,功能易扩展.实验结果表明系统能清晰地显示信号波形.