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Original question:

AWR2944: Inquiry about Parallel Processing Capabilities of TI AWR2944 HWA

AWR2944: Adding New DPU processing in HWA

Muruga Jothi
Prodigy 10 points
Part Number: AWR2944

Tool/software:

Hi,

I'm trying to modify the object detection module of mmwdemo (for awr2944 EVM).

Right now it has 4 engine paths to provide detections. I wanted to do one more FFT operation and added config and process for this between rangeproc and dopplerproc DPUs. But it always gives no output. No crash but I don't get any outputs.

2. When I did only EDMA transfer, it gets through. the entire datapath processing is intact.

Is it possible to add new DPU processing path like Doppler FFT? it is like running FFT on HWA twice. The number of paramsets are within 64 (HWA total limit). Please let me know whether adding new functionality that runs on HWA in the existing data processing chain is  possible .

  • 0
    TI__Mastermind 21050 points

    Hi Muruga,

    Muruga Jothi said:
    Is it possible to add new DPU processing path like Doppler FFT?

    Yes, you should be able to add a new DPU in the processing chain. 

    Muruga Jothi said:

    But it always gives no output. No crash but I don't get any outputs.

    2. When I did only EDMA transfer, it gets through. the entire datapath processing is intact.

    The output of any HWA PARAMSET will be stored in the HWA membanks. You need to transfer the data from HWA membank to other memory regions like DSS_L3 before it's overwritten by the input/output of another PARAMSET.

    Regards,

    Samhitha

  • 0 in reply to Samhitha Bobba
    Prodigy 10 points

    Hello Samhitha, 

    Thanks for your answer. 

    I'm doing an EDMA transfer from HWA memory to DSS. I meant that I tried to run HWA with no operation and only EDMA transfer with some hardcoded buffer. It worked. 

    After I enabled HWA with FFT operation, I could not get the expected output. 

    Since there is no crash, I can't debug further. If possible, could you let me know how to debug the HWA issue in CCS?

  • 0 in reply to Muruga Jothi
    TI__Mastermind 21050 points

    Hi Muruga,

    Can you write a unit test and check if the paramset is providing results as expected?

    Regards,

    Samhitha