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Original question:

TMS320F28377D: --fp_mode "relaxed" meaning?

CCS/TMS320F28379D: The FFT ADC window applied for square wave

YUZHEN WU
Prodigy 60 points
Part Number: TMS320F28379D


Tool/software: Code Composer Studio

Hi, 

I have been trying to applied 512pt window to the 1 kHz square wave in example 2837x_RFFT_ADC_RT  refer to the example rfft_adc_f32_windowed. Since I use 28379, I cannot run the example rfft_adc_f32_windowed so I just study the window code and use this code into example 2837x_RFFT_ADC_RT. Then I found the window sometimes perfectly applied to the square wave and sometimes not. I do not know why it happened.

Regards,

Karen

  • 0
    TI__Mastermind 26875 points

    Karen,

    There is a 2837x specific Windowed RFFT example project called 2837x_windowedrfft, could you try this? I tried it and it Passes (pass = 513, fail = 0). The default FFT size is 256.

    Try it and come back if you have questions.

    Thanks,

    Sira