Part Number: TMS320F28377D
Tool/software: Code Composer Studio
As the title, using the rfft_adc routine in v1_50_00_00 in controsuite, reading the data in RFFTin1Buff is very inconsistent with the calculated RFFTmagBuff result. The following is a comparison of the analysis results. The above is the fft of the data in RFFTin1Buff using matlab. The following is dsp calculate in the routine. the fft config as follow. I hope you can give me some suggestion whether is my usage is wrong，thanks.
hnd_rfft_adc->Tail = &(hnd_rfft->OutBuf);
hnd_rfft->FFTSize = RFFT_SIZE; //FFT size
hnd_rfft->FFTStages = RFFT_STAGES; //FFT stages
hnd_rfft_adc->InBuf = &RFFTin1Buff[0]; //Input buffer (12-bit ADC) input
hnd_rfft->OutBuf = &RFFToutBuff[0]; //Output buffer
hnd_rfft->CosSinBuf = &RFFTF32Coef[0]; //Twiddle factor
hnd_rfft->MagBuf = &RFFTmagBuff[0]; //Magnitude output buffer
RFFT_f32_sincostable(hnd_rfft); //Calculate twiddle factor
RFFT_adc_f32(hnd_rfft_adc); // Calculate real FFT with 16-bit
RFFT_f32_mag(hnd_rfft); //Calculate magnitude
