03-08-2013 04:16 AM
Hi,
I would to get min and max sample rate my devide (NI 9239) can support. When I try to acquire with a higher sample rate I get the following message indicating the min and max value I desire to get.
I tried with the following code but I get different values.
#include <ansi_c.h> #include <utility.h> #include <NIDAQmx.h> float64 min_rate[1];
float64 max_rate[1];
DAQmxGetDeviceAttribute ("cDAQ1Mod6", DAQmx_Dev_AI_MinRate, min_rate, 1); // min_rate[0] = 1612.903225806451700
DAQmxGetDeviceAttribute ("cDAQ1Mod6", DAQmx_Dev_AI_MaxSingleChanRate, max_rate, 1); // max_rate[0] = 50000.000000000000000
I would to extend the same method to other boards too and I would to use those values in a math formula. Could you help me? Thanks!
05-08-2013 08:46 AM
Hi,
I found some documents on the web that explain how to do that. It seems that they are using a diferent DAQmx property:
http://digital.ni.com/public.nsf/allkb/104E42830B2E2CE486256DBE005E68E4?OpenDocument
http://www.ni.com/white-paper/4320/en#toc2
Hope this helps,
Clara