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....
Original Attachment has been moved to: DSP_FFT_Q31_LIB_00.zip
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.