AWR1642: Memory Requirement based on Range FFT=1024, Doppler FFT=64, TDM-MIMO 2T4R

James Austrial

Expert 4100 points

Part Number: AWR1642

Hi,

It looks AWR1642 is not able to achieve the following spec:

Range FFT = 1024 (Samples per chirp)

Doppler FFT = 64 (Chirp per frame)

2T and 4R for TDM-MIMO BPM

FFT processing is 16 bits

The application is SRR

It needs at least 1024*64*4*2*2 bytes (~1M bytes) in L3 memory.

Is my understanding correct?

If AWR1642 is not enough for this kind of spec. Will enhanced part number has enough L3 memory? (768K+512K??)

over 7 years ago

0 Raghunandan Kamath over 7 years ago

TI__Mastermind 22155 points

Hello James,

Please go through the below post on how you can use or extend the L3 memory

Hope this post helps your understanding on use of L3 memory.

Thanks,

Raghu

0 James Austrial over 7 years ago in reply to Raghunandan Kamath

TI__Expert 4100 points

It's confirm this configuration can't be achieved by AWR1642 since the L3 memory is not enough for radar cube.
Need AWR1642 enhanced version to achieve it.

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AWR1642: Memory Requirement based on Range FFT=1024, Doppler FFT=64, TDM-MIMO 2T4R