Hi
I have some questions about HWA 2.0.
Because I would like to confirm that the HWA have been achirving maximum peformance for FFT, I compared the actually required clock cycles with the theoretically estimated clock cycles.
Regarding the actually required clock cycles,
I confirmed the clock cycles using the Real FFT program that mmwave mcuplus SDK provids.
Regarding the theoretically estimated clock cycles,
I confirmed the HWA user guide part of AWR294x Technical Reference Manual.
Addtionally, I estimated clock cycle required HWA FFT refer to the HWA user guide (below image).
The result are as follows.
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number of FFT sample / Actual clock cycles / Estimated clock cycles per once FFT
256 / 2467 / 512( =256+ (256x1) )
512 / 3101 / 1024
1024 / 4041 / 2048
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1) How accurate is the estimation value of clock cycle refer to HWA user guide?
2) What the reason do you think about that difference between the clock cycle I confirmed using AWR2944 and estimated clock cycle refer to AWR294x Technical Reference Manual occurred?
Regards,
Naoya
