Creating Sine sweep with chirp not giving desired result

[npai]

Hello All,

I am trying to create a sine sweep with the help of Chirp.vi in sound and vibration toolkit. I am not getting a sine sweep but there is a small chirp sound and it dies down and the next time it gives an error Error -200479 occurred at DAQmx Start Task.vi:

Earlier in the day I was getting a sine sweep with a chirp sound during the sweep, now I am not getting a sine sweep, I can't understand what I changed in the program that the sine sweep stopped and it is giving a tiny chirp and giving an error.

Could someone take look at my vi and tell me what I am doing wrong.

Best Regards,

Nitin

[GarPar]

Hi npai-

     The task is throwing the error because you have both your DAQmx Write and the DAQmx Start Task.vi in the while loop.  Remove those from the while loop and you should see the functionality that you want.  All you should need is the DAQmx Is Task Done.vi in the while loop (along with the stop conditions).

     I hope this helps.  Best of luck with your application!