基于FPGA的高速数据采集控制技术的研究  

A Study on High-Speed Data Acquisition Control Technology Based on the FPGA

作　　者：徐霞[1] 张强[1] 罗小彬[1] 徐寅林[1] 

机构地区：[1]南京师范大学物理科学与技术学院,江苏南京210023

出　　处：《南京师范大学学报（工程技术版）》2016年第4期15-21,共7页Journal of Nanjing Normal University(Engineering and Technology Edition)

摘　　要：传统的数据采集一般都是基于CPU控制下的A/D转换及数据存储技术.由于受到CPU指令执行时序的限制,这种控制模式很难突破1 MHz以上的数据采样速率.本文介绍一种基于FPGA的高速A/D转换、数据采集、存储控制技术.数据采集系统采用ALTERA公司的FPGA芯片EP4CE6E22C8N为控制器,产生高速A/D转换器及大容量SDRAM存储器工作所需要的控制时序信号,对采集速率可达100 MHz的高速A/D转换芯片AD9283进行采样控制及快速缓存处理.整个设计在QuartusⅡ与Keil C-51平台下,运用Verilog语言及C语言描述软件编程,正确实现了AD9283转换的工作时序控制及采样的数据存储处理.The traditional data acquisition are generally based on CPU under tlie control of Aage technology. Due to the limitation of CPU instruction execution time series, this kind break through the above 1 MHz data sampling rate. This paper introduces a kind of high-speed A/Dconversion baseFPGA, data acquisition, storage control technology. The data acquisition system adopts FPGA chip EP4CE6E22C8N ofALTERAcompany as the controller, to producc high-speed A/Dconverter and the large capacity SDRAM memory workrequired sequence control signal, the collected rate of up to 100 MHz high speed A/D conversion chip control and deal with fast cache. The whole design is on the Quartus $ with guage and Clanguage, designs software programming, correctly implements AD9283 transformation work timing control and sampling data storage process.

关 键 词：高速采样控制 FPGA A/D转换 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]