Sende data with usb 6259 and C# for a short time. nano seconds

[agent]

Hello all,

Setup: C# and the USB 6259 DAQ card. Two Analog output channels.

First question: What is the shortest time for data generation of the USB 6259 card? I cannot find the correct time in the specification

http://sine.ni.com/ds/app/doc/p/id/ds-20/lang/de

I need some simple C# samples where I can generate a square wave for example for 50 nano seconds (depeds on the minimum applicable time).

Thanks.

Regards. 

[PeterAdelhardt]

Hi agent,
you should be able to find the answer to your first question in the link you posted. Among other things, it lists the Analog Output specs.

Maximum update rate
   
1 channel
2.86 MS/s

2 channels
2.00 MS/s

Timing accuracy
50 ppm of sample rate

Timing resolution
50 ns

Minimum output is 1 sample. So for 2 channels where the max output rate is 2MS/s, a sample width is 1/2M = 500ns with a resolution of 50ns. 

As for your second question:

There are several examples for using the DAQmx driver with C# if you have Measurement Studio installed, you can find them here:

Select "Start"->"Run", enter %allusersprofile%

navigate to \Shared Documents\National Instruments\MStudioVS2005\DotNET\Examples\DAQmxWithUI\GlobalContinuousAO\cs

see also National Instruments\NI-DAQ\Examples\DotNET2.0

Let me know if you have further questions.

Best regards,

Peter