Timing is important in designing your data acquisition software for a couple of reasons.

设计数据采集软件时，如下两个原因可证明时间的重要性。

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In this paper, a timing method is proposed which USES the 8253 IC of a IBM-PC as a data acquisition system. The programing skill and the practical procedures of an application are presented.

本文提出了一种利用IBM - PC微机自身的8253芯片作为数据采集系统的定时方法，给出了应用时的编程技术和具体程序。

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FPGA is used as trigger source. The data acquisition of precise timing has been realized with edge-trigger manner. Meanwhile, the data analysis is also realized in the system.

系统采用FPGA作为数据采集触发信号源，实现了精确定时的数据采集，同时对采集的数据进行分析和处理。

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