TMS320F28379D: RFFT Analysis for 2 different ADC Inputs.

Shreelakshmi K

Part Number: TMS320F28379D

Tool/software:

I have a Current signal and a Voltage signal which are sampled by ADC and I have to perform RFFT Analysis on both signals, how to do it?

9 months ago

0 Sira Rao80 9 months ago

TI__Mastermind 27005 points

You can compute 2 RFFTs, one on the current signal, one on the voltage signal.

0 Shreelakshmi K 9 months ago in reply to Sira Rao80

Prodigy 20 points

Ok. I am 2837x_RFFT_ADC example for reference, but it performs RFFT Analysis on only 1 signal. Can you let me know about all the changes I need to do in main.c and F2837xD_FPU_RFFT_ADC_RT_lnk.cmd in order to apply for 2 signals?

+1 Sira Rao80 9 months ago in reply to Shreelakshmi K

TI__Mastermind 27005 points

Shreelakshmi,

The example sets up everything - buffers, structures, etc. for one signal. To do it on a second signal, you need to essentially replicate what is done for the 1st signal - setup additional memory buffers, structures, etc. This is a simple exercise that can be accomplished by reviewing the example.

Thanks,

Sira

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28379D: RFFT Analysis for 2 different ADC Inputs.