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IWR1642: Maximum idle time for a chirp

Hitoshi Sugawara
Mastermind 19980 points
Part Number: IWR1642

Hi Experts,

I blieve that the idle time for a chirp is configuable.
So, could you please let me know about the maximum idle time?
www.ti.com/lit/swra553 specifies the minimum idle time.


Please let me know how to determine the maximum idle time.
Best regards,

Hitoshi

  • 0
    TI__Mastermind 30405 points

    Hi Sugawara-san,

    You can find the valid range for the various configuration parameters in the mmWaveLink API doxygen documentation. Idle time is a part of the Profile Configuration API rlSetProfileCconfig. This API is a part of Sensor Configuration Module which is documented under:

    file:///C:/ti/mmwave_sdk_01_00_00_05/packages/ti/control/mmwavelink/docs/doxygen/html/group___sensor.html

    From this page, you can click on the definition for rlSetProfileConfig and look at the rlProfileCfg_t data structure which defines the various parameters and their valid ranges.

    The idle time is encoded in the idleTimeConst field as defined below:

    Idle time
    1 LSB = 10 ns 
    Valid range: 0 to 524287

    With each LSB corresponding to 10ns, the maximum value corresponds to 5.24287 milliseconds.

    Regards

    -Nitin

  • 0 in reply to Nitin Sakhuja
    TI__Mastermind 19980 points
    Hi Nitin,

    Thank you for kind explanation.
    I understood.

    Best regards,
    Hitoshi