基于FPGA的高速数据采集系统设计  

High-speed Data Acquisition System Based on FPGA

作　　者：李小虎[1] 蒲南江[1] 李晓雷[1] 李文超[1] 刘洋[1] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《山西电子技术》2011年第4期5-6,共2页Shanxi Electronic Technology

摘　　要：为了在提高数据采集卡的速度的同时降低成本,设计了一种应用流水线存储技术的数据采集系统。该系统应用软件与硬件相结合的方式来控制实现,通过MAX1308模数转换器完成ADC的转化过程,采用多片Nandflash流水线数据存储模式对高速采集的数据进行存储。搭建硬件电路,并在FPGA内部通过编写VHDL语言实现了采集模块、控制与存储模块和Nandflash存储功能。调试结果表明,芯片的读写时序信号对应的位置准确无误,没有出现时序混乱,且采集速度能保持在10 Mb/s以上。系统实现了低成本、高速多路采集的设计要求。In order to improve the speed of data acquisition cards, while reducing costs, the paper designs a kind of data acquisition system with pipelined storage technology. The system is controlled by the combination of software and hardware; through the MAX1308 completes the ADC conversion process; using the pipelined high-speed data storage mode to store the data collected. In FPGA, the system makes up the acquisition module, the control module, the storage module and the Nandflash storage using the VHDL language. Experiment results show that read and write chip timing signal is corresponding to the accurate location. The timing does not appear chaotic, and the acquisition speed maintains the 10 Mb/s or more. The system realizes the design requirements of low cost, high-speed multiplex acquisition.

关 键 词：高速采集 流水线存储 FPGA 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]