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志姜000's avatar
志姜000
Icon for New Contributor rankNew Contributor
5 years ago

FFT+IFFT WRONG ANSWER

Dear Intel Community, I'm working with the FFT IP core provided by the Intel in Quartus.I want to use the same module to implement FFT and IFFT.For example, FFT IP CORE SETTING: Device:Cyclon...
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,

As I understand it, you observe some issue with the FFT to iFFT interface. Just would like to check with you on the following:

  1. Would you mind to further elaborate on the timing not meeting your expectation observation? Some screenshot of docx would be helpful.
  2. Are you observing this in Modelsim simulation or hardware?
  3. If it is hardware, it is recommended for your to create simple test design and simulate with Modelsim to isolate potential functional issue prior to hardware testing.
  4. What is the Quartus version that you are using?
  5. Have you tested with other data format ie try start with fixed point

Please let me know if there is any concern. Thank you.

志姜000's avatar
志姜000
Icon for New Contributor rankNew Contributor
5 years ago

Quartus version:Quartus 13.1

I have done the simulation with the Modelsim , and the test results are as follows