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IFA200(Intelligent Flow Analyzer)是美国TSI公司生产的多通道数字化仪。本文介绍用IBM-PC和IFA200以及相应的接口TSI6260/6265组成的并行多通道高速DMA数据采集系统,并分析了该系统的IFA200的基本结构、接口电路的工作原理和IBM-PC的DMA技术,最后给出了在IBM-PC上DMA数据采集的软件设计原理。
IFA200 (Intelligent Flow Analyzer) is a multichannel digitizer manufactured by TSI Corporation of America. This paper introduces a parallel multi-channel high-speed DMA data acquisition system composed of IBM-PC and IFA200 and the corresponding interface TSI6260 / 6265, and analyzes the basic structure of IFA200, the working principle of the interface circuit and the DMA technology of IBM-PC, Finally, the software design principle of DMA data acquisition on IBM-PC is given.