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From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.
We appreciate your patience as we improve our online experience.
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我再NI 6602或者NI 6608上采用多于三个计数器同时进行计数器输入的任务。或者在PCI-6601上采用超过一个计数器进行计数器输入的任务。
当我再添加一个任务并开始运行的时候,在DAQmx Start Task中出现了以下错误:
Error -200251 "Measurements: No DMA channels or USB Bulk Endpoints are available."
我该怎么解决这个问题?
PXI-6602和PXI-6608都有三个DMA通道,而PCI-6601只有一个DMA通道。所有其他的操作,包括计数器输入,都只能通过中断方式实现而不能够使用DMA方式。
需要了解怎样将您的任务配制成中断方式,请参考: KnowledgeBase 34FGAFVM: How do I Configure the Data Transfer Mechanism (Interrupt or DMA) in DAQmx and Traditional DAQ?.
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