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Continuous waveform changing frequency


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Hi,

  I have a problem with my signal generation Vi.

I use a Ni PCI-6221 board to generate arbitrary waveform.

 

In my application i need to change waveform and frequency on the run and the next waveform MUST start after the last point of the first one.

I attach an example of what i need to do. Don't care about the shape of the waveform bout only the frequency.

As you can see in the exampel when i change waveform the new waveform immediately start truncating the waveform in execution.

I need the new waveform to start at the end of the first one.

 

NOTE: I MUST use continuee samples or regeneration 'cause i could not be fast enough to write continuously the waveform when i generate 100hz waveform or similar.

 

could anyone help me?

 

 

Prova2.zip

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