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为什么在VisiDAQ 3.1下，PCL-818L的采样速率不能超过1KHz？

2015-11-13 FAQ Document No.522+12-14196

Related Product:

PCL-818L-A/ PCL-818L-A5/ PCL-818L-A6/ PCL-818L-AE/ PCL-818L-B1/ PCL-818L-BE/ PCL-818L-C/ PCL-818L-CE

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Solution:

  • 为什么在VisiDAQ 3.1下，PCL-818L的采样速率不能超过1KHz？

    PCL-818L支持40KHz的采样速率。但问题是软件如何支持这样的采样速率。对于高速DAQ软件需要使用板上DMA/中断来达到最好的性能。但是Genie 3.0不支持板上DMA/中断，所以在Genie中不能达到1KHz的采样速率。
    在我们的32位动态链接库驱动中有一些DMA或中断的例程来演示如何写VC++/VB/Delphi程序达到高速DAQ。对于高采样速率的应用，可能需要使用动态链接库驱动来编写自己的程序。

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