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IWR6243: Needs a execution of runtime calibration functionality within Continuous streaming mode (CW-Mode)?

Lukas Ploch
Prodigy 91 points
Part Number: IWR6243

Tool/software:

Hello TI,

I am currently working on a project where we are using the IWR6243 as an RF chip. However, we need Continuous streaming mode for certain measurements. When I look at the document "mmwave Radar Interface control Document IWR6243" and chapter 6.3 (Continuous streaming mode (in single device case)) with the API Programming sequence for the continuous streaming mode, I see that no runtime calibration is called before starting continuous mode. Am I correct in understanding from the document that if the configuration is changed, a new static configuration simply needs to be performed? Is mentioned as steps 6-11.

I am asking because in our tests, we have noticed power-jumps when changing the frequency for CW mode, especially around 60.5 GHz. In our software, we perform exactly the steps from the API Programming sequence of chapter 6.3.

So, just a short question: Should runtime calibration also be called in the case of a continuous streaming mode for the IWR6243? And if yes, is a profile configuration required for this? In all the documents I have read, runtime calibration of IWR6243 refers to a profile configuration.

Thanks a lot Slight smile

  • 0
    TI__Mastermind 19530 points

    Hello.

    Lukas Ploch said:
    Should runtime calibration also be called in the case of a continuous streaming mode for the IWR6243

    It should not.  If you want to do calibrations, disable the continuous streaming mode, perform the calibrations, and then switch back into the continuous streaming mode.

    Sincerely,

    Santosh

  • 0 in reply to Santosh Krishnan
    Prodigy 91 points

    Thank you for the quick response.

    For performing calibrations, do you mean the runtime calibrations or intial calibration sequence? And do we need a configured profile for the runtime calibration, if we want to perform the runtime calibration before starting continuous streaming mode?

    The point is, that the documentation of the runtime calibration meantions the relation to a needed profile configuration and is mentioned as part of the FMCW-Mode. Profiles are not part of the configuration for the continuous streaming mode.

    Thanks for the support.

  • 0 in reply to Lukas Ploch
    TI__Mastermind 19530 points

    Hello.

    Lukas Ploch said:
    For performing calibrations, do you mean the runtime calibrations or intial calibration sequence? And do we need a configured profile for the runtime calibration, if we want to perform the runtime calibration before starting continuous streaming mode?

    I believe this applies to all types of calibrations; and you will need a configuration.

    Sincerely,

    Santosh