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AWR2944: Sparse Antenna Config

DRF
Prodigy 91 points
Part Number: AWR2944

Hi,Experts.

I'm using AWR2944 ES2.0,the SDK is refer to SDK4.4.Our product design the antenna as a sparse array，I use 4 Tx and 4 Rx, in order to ensure the Azi_FFT result is correct, I change some code in  DPU_DopplerProcHWA_DDMADemod.By modify the code I can get the correct result  , unfortunately I find the DPU_DopplerProcHWA_process processing time become unacceptably long.By reading the technical reference manual I find HWA can use shuffle and zero insertion to  achieve the same effect，but i don't know how to modify the HWA config.Could you please tell me what detailed code to add in the SDK to implement this operation.The antenna difference between AWR2944-EVM and our product are as follows:

 

  • 0
    TI__Mastermind 20605 points

    Hi DRF,

    In the doppler proc DDMA source code, you can find the HWA paramsets being populated. You can either make adjustments or additions to the same configuration to achieve what you want. You can refer to the TRM (Radar Accelerator section) for more details on how to program the hardware accelerator.

    Regards,

    Kaushik