基于FPGA和PCI总线的数据采集板设计

Design of Data Acquisition Board Based on FPGA and PCI Bus

为了及时把握战场动态,对信号数据的实时获取提出了较高的要求,文中根据FPGA以及PCI总线技术,全面阐述了一种高速、大容量数据采集卡的实现方案。它不但可以实时采集军用红外探测器的图像,还能够实现大容量数据的缓存,可有效地解决对数据高速采集、传输的需求。由于采用了FPGA实现数据采集控制逻辑,减少了开发周期,不但可以在线修改设计,还可对设计进行在线升级。该数据采集卡已经在某型系统中投入使用,达到了预期技术指标,取得了一定的效果。

In order to master the change in the batterfield,it requires the system to acquire the signal data with high speed.This paper introduces a kind of high speed,large capability data acquisition board based on FPGA and PCI local bus technology.The board can not only acquire the data from the military infrared detector real-time but also can store data as cache.Just because the data acquire control logic was accomplished by FPGA, this method decreases the research time, also can modify and update the design on-line.The board has been used in a military system and comes into effects.