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swept frequency and wait time for samples

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hello everybody
I'm new in labview and I don't have enough experience. I have a problem with my code, I hope you can help me.

My program makes a sinusoidal wave out signal and has to do a swept from an initial frequency to a final frequency in a time seated. My problem is that only work if I set a wait time of 1000 ms but the resolution of my waive is too poor and I need it with a high resolution but if I increase the resolution my swept goes very fast. For example, if I want to start my frequency wave with 2 Hz and finish at 6 Hz in 5 seconds my actual program finish at 94Hz. Is there any way to make my counter of frequency depending on the time and not depending of my sample? or maybe a tool that can help to fix my problem?

Thank you very much

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