DSP FFT problem

[otlm]

Hi!

 I would like to do phase shift, it works well in the following way:
 fos3.vi
 But if I try it in dsp project the same way, it can not function properly.
 fos5.vi
 I assume that the failure is in the EMB real FFT.vi or in the EMB inverse real FFT.vi.
 What can be the solution to this problem?

 Thank you for the help!

[otlm]

It seems that in the Labview 8.6 DSP the EMB inverse real FFT.vi is wrong.

From where can I download a working one?

[otlm]

this is good

[PeterV_hun]

Hi,

Is it a Real-Time project?

Do you have questions about it?  Have you already resolved it?

If you have questions....could you attach the whoel project with SubVIs? I don't have EMB SunVIs...

Regards,

Peter

[otlm]

"

Hi otlm,

Are you using a hardware device with this example?  Have you added the VI to a project?  Based on your comment, it seems like you may have done this, but here is a tutorial that talks about adding the VI and the hardware to a LabVIEW project.  Do you get a specific error when you run the VI that triggers some sort of failure?  If you get an error, please post that to the discussion forum.  Thanks!

Kim W.

"

I use Speedy 33 DSP module. One of the attached vi-files, the fos3.vi is not a project file, but the fos5.vi was made in DSP project. Apart from this difference, the files are the same. But they can not work the same way. I do not get any error messages.

[otlm]

Hi otlm,

Are you using a hardware device with this example?  Have you added the VI to a project?  Based on your comment, it seems like you may have done this, but here is a tutorial that talks about adding the VI and the hardware to a LabVIEW project.  Do you get a specific error when you run the VI that triggers some sort of failure?  If you get an error, please post that to the discussion forum.  Thanks!

Kim W.

[otlm]

Hi PeterV_hun!

The untitled115.vi works, but not as I wished, because I had to use some trick forcing it to work.

 It seems that the inverse FFT did not exchange but add the modified element to the array.