基于USB接口和FPGA控制的数据采集系统的设计

随着科技的发展,信号处理技术也日渐成熟。而作为数字信号处理的重要组成部分,数据采集技术在整个数字系统中起着至关重要的作用。高速、高精准的数据采集卡在实施信号处理、数字图像处理等方面的需求量越来越大。现场可编程门阵列(FPGA)的特点:时钟频率高、内部延时小、组成形式灵活等,促使其在高速数据采集方面具有压倒性的优势。将FPGA与具有即插即用、高传输速度、独立供电等特点的USB(universal serial bus)总线合用,就会使人们在数据采集中更加方便、快速。笔者根据自己的研究,谈谈基于USB接口和FPGA控制的数据采集系统的设计,望能起到抛砖引玉的效果。

The design of data acquisition system based on the USB interface and FPGA control

With the development of science and technology,signal processing technology has become more mature.As an important part of digital signal processing,data acquisition technology plays a vital role in the digital system.The demand of high speed and high precision data acquisition card is growing in real time signal processing and digital image processing.Features of field programmable gate array(FPGA): clock frequency is high,the internal delay is small,flexible form,make it have an overwhelming advantage in high speed data acquisition.The FPGA with a plug-and-play,high transmission speed,independent power supply characteristics of the USB(Universal Serial Bus),will make people more convenient and quick in data acquisition.According to own research,the author talks about the design of data acquisition system based on the USB interface and FPGA control,hope to have effect.