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IWR6843AOP: storing/restoring calibration data into/from flash

Bart
Expert 6370 points
Part Number: IWR6843AOP

In the new SDK we found some notes about the new method of calibration storage into FLASH memory (command: calibdata) and subsequent restoring (including phase shifts).

We're looking for more info as we were playing with idea of storing distance/phase calibration (compRangeBiasAndRxChanPhase) to Flash memory of the radar.
But calibdata looks like it works with different kind of phase shifts. Is there more info about this?

Thanks.

  • 0
    TI__Mastermind 23655 points

    Hello

    Can you please help us understand which calibration are you referring to.

    Is this for DFP's calibration of RF front end

    or

    Calibration at application level provided as demo. Eg OOB demo's calibration feature.

    Thank you,

    Vaibhav

  • 0 in reply to Vaibhav Mahimkar
    TI__Expert 6370 points

    Hello,

    I'm referring to the calibration that was added to SDK3.5. Not sure what is covered by this: (command: calibdata)

  • 0 in reply to Bart
    TI__Mastermind 30405 points

    Hi Bart,

    The SDK demo calibdata command provides a way to save and restore DFP (i.e. RF front-end) boot time RF calibrations as noted in the command description in the SDK user guide. Please also look at the code snapshot below from mss_main.c which shows which calibrations are restored from flash. The demo code instructs the DFP to disable the corresponding boot-time calibrations by setting the bitmask in MMWave_open. 

       

     

    Regards

    -Nitin