Part Number: TMS320C6748
Tool/software: Code Composer Studio
I use C6748 board and CCS 8.1.0 version.
I tried to use the DSPF_sp_fftSPxSP function on dsplib to do a Real FFT.
So I made an input array as shown in the picture below.
I plotted the real and imaginary parts to analyze the FFT results
First is a real number graph.
The second is the imaginary part graph
The question is, why do the graphs that have the same amplitude have different values in the real part?
I know that the library in dsplib alternates between real and imaginary sequences.
So I put 0 in the imaginary part of the input.
Likewise, in the graph, even-numbered parts in real array and odd-numbered part are drawn in imaginary array.
Let me know if I miss something
