How to generate sine waves of the evolution of the frequencies with neither 6733?

I have a card ni6733. I want a specific frequency of the output waveform. After a few cycles, waveform frequency must be changed several times without delay. Bandwidth varies from 0.1 Hz to 10 Hz.

I'm new on the map of NI6733, if have no idea about it. I intend to use the scheme of double buffering for waveform generation. Timing here is critical.

Please give the sequence of function (if possible).

Hi Andrew, I found problem in double buffering when using the buffer of size less than 16384 (32768/2). Why? I don't know... also beyong 1,25,000 "stack overflow" error was coming. Anyway, I dropped the idea of using double buffering. Now I use generation of waveform buffer alone without the help of NIDAQMakeBuffer. Instead, I create the buffer myself having data points of variable frequency to set the number of cycles. as demand for time-duration of profile waveform must be generated is limited to 50 seconds, and I use the rate constant update of 1000 samples per second, buffer size if necessary not creating any problems so far (for now). Thank you very much for your generosity. Rahul

Tags: NI Hardware

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