07-11-2007 12:03 PM
07-12-2007 03:22 PM
Hi Kirkm,
Thank you for
posting on the National Instruments forum.
To answer your first
question, the correct attribute to read the actual sample rate is explained in
the How Is the Actual Scan Rate Determined When I Specify the Scan Rate for My
Data Acquisition?
The fastest internal clock on the PCI-6132 is 2.5 Mega Samples per Second. You can find this in the Specifications Manual on page 2. The specifications manual can be found by clicking on the PCI-6132 product page, selecting the Specifications tab and then clicking on Detailed Specifications.
07-12-2007 03:47 PM
Nick,
I apprciate the help.
Just to clarify: To get the actual sample rate would I use a call something like this?
DAQmxGetTimingAttribute (taskHandle, DAQmx_SampClk_Rate, &actualRate);
On question 2). Yes I understand the fastest sampling rate is 2.5MHz as stated in the spec manual.
I was asking if there is a clock faster than 20Mhz that can be used as the clock that gets divided down to 2.5Mhz? (to get better rate resolution at the fast sample speeds)
Thanks again,
Kirk
07-13-2007 03:02 PM