AWR2944: AWR2944's Advanced 2DFFT execution time

Dennis Tsai

Part Number: AWR2944

Tool/software:

Hi Ti's experts,

I would like to check if I want to enable the advanced 2DFFT to calculate 64 by 16 input for 500 times, which the following calculation for the execution cycle is correct:

1. 501(B+1)*[64(initial cycle)+64(FFT execution cycle)]*[16(initial cycle)+16(FFT execution cycle)]

2. 501(B+1)*64(FFT execution cycle)*16(FFT execution cycle)

3. 501(B+1)*[64(initial cycle)+64*16(FFT execution cycle*back-to-back iteration)]*[16(initial cycle)+16*64(FFT execution cycle*back-to-back iteration)]

Thanks

BRs,

Dennis

8 months ago

0 Samhitha Bobba 8 months ago

TI__Mastermind 20880 points

Hi Dennis,

Dennis Tsai said:
I would like to check if I want to enable the advanced 2DFFT to calculate 64 by 16 input for 500 times,

It should be the second option as per the TRM.

In the first option, initial cycle which is meant to be added once for all the iterations, is added for all iterations(it's multiplied by 501). And the meaning of the last option is not clear. I am not sure about what you meant by initial cycle, back-to-back iteration.

Regards,

Samhitha

0 Dennis Tsai 8 months ago in reply to Samhitha Bobba

Prodigy 60 points

Hi Samhitha,

The initial cycle and back to back iterations are addressed at TRM below:

Thanks.

BRs,

Dennis

+1 Samhitha Bobba 8 months ago in reply to Dennis Tsai

TI__Mastermind 20880 points

Hi Dennis,

It should be the second option. Initial latency should be added once for all the iterations. I think that MN in BMN + MN is added for initial latency.

Regards,

Samhitha

0 Dennis Tsai 8 months ago in reply to Samhitha Bobba

Prodigy 60 points

Hi Samhitha,

Understood, thanks.

BRs,

Dennis

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AWR2944: AWR2944's Advanced 2DFFT execution time