TMS320F28379D: How to implement FFT in TMS320F28379D

Hello Niraj,

Have you already take a look at the DSP FPU library provided in C2000Ware? You can find it at C2000Ware_5_01_00_00\libraries\dsp\FPU\c28. There is a docs folder which has the user guide that can help explain the relevant FFT functions/objects.

Keep in mind that since you're using the F2837xD, you will only have the FPU32 FFT option available (this limits which FFT objects/functions you can use, per the user guide). I highly recommend using SysConfig to set this up because the tool will perform some additional error checking and simplify some of the steps needed. While it's not the exact device you're using, you can see an analogous example for the F2838x device in C2000Ware_5_01_00_00\driverlib\f2838x\examples\c28x\dsp.

Niraj Mishra said:

So I just want to know how can I find Phase of a sine wave or Phase difference between two sine waves using FFT

Per the user guide I mentioned above, section 5.1 lists some functions which can be used for the FFT. You can look at the relevant parts of the user guide regarding the below highlighted functions:

Let me know if you have further questions.

Hi Omer,

I did tried about that but did not find any sysconfig about FFT for my device F2837xD.

Can you please assist me more on that.

like how can I access the sysconfig