buffering overflow of FIFO County edge even at very low rates

Dear Forum,

I try to use a PXI-6608 timestamp clock of a PXI-4498 for the analog input sampling. Because the sampling frequency will be the order of 20 KHz, I want to use a task of impulse generation on a counter to divide down by a factor of 1000, then use this pulse the door and the clock 10 MHz on the 6608 as source contour buffer - I wait about 20 edges per second, which should be handy to collect more DMA.

The result is that I get the error-200279 ("attempt to read samples is no longer available") immediately after the beginning of the vi, before that I extracted an indictment.

This is my first shot of dagger to using DAQmx for counters/timers rather than the old drivers for data acquisition, so I do not know I did something wrong, but I can't understand that.

I have attached the vi if that helps.

Thank you!

Case No.

It seems that you have your door and source to the rear.  The sample clock should be ctr0internaloutput and the Terminal count edges should be 10 MHz clock.  You get the buffer overflow error because the FIFO on the map is only 2 samples and 10 MHz, these are rewritten was faster that a computer could possible pull out of the map.

Tags: NI Hardware

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