danieljabad@yahoo.it

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danieljabad@yahoo.it

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danieljabad
Contributor I

Hi,

 

I can't obtain a correct result from FFT "arm_rfft_q31"   function from   CMSIS DSP....

 

My Platform is :   TWR-K70F120M

 

The environment is : KDS_3.0.0

 

Attached my project....

 

Thank you in advance for the help....

 

Daniel Abad

Original Attachment has been moved to: DSP_FFT_Q31_LIB_00.zip

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xiangjun_rong
NXP TechSupport
NXP TechSupport

Hi, Daniel,

I have checked your code, the code is difficult to read. How do you know that the result is incorrect, what is your issue?

I have done FFT based on float type, I attach the code,  hope it can help you. If you do want to develop FFT code based on q31 type data format, and have issue, pls update here, I will test.

BR

Xiangjun Rong

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