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AWR1642BOOST: How to get the sub-frame ID when the radar is working under advanced frame configuration

Lifeng Liu
Intellectual 330 points
Part Number: AWR1642BOOST

Hi,

    I would like to know how to distinguish among sub-frames when the DSS revive a frame start interrupt  under advanced frame configuration with multiple sub frames defined.    Is there a register or Radar API that can let me know the sub-frame ID.

Many thanks.

  • 0
    TI__Guru 69960 points
    Hello Jerry,
    In case of Advance-frame-config DSS will receive Frame-interrupt (SOC_XWR16XX_DSS_INTC_EVENT_FRAME_START) at starting of every sub-frame. DSS application needs to count this frame interrupts to track sub-frames and take appropriate decision.


    For more info please refer mmw demo application (dss_main.c).


    Regards,
    Jitendra
  • 0 in reply to Jitendra Gupta
    Intellectual 330 points
    Hi Jitendra,
    Thanks for the reply. That is what I did right now. However, I still have some concerns. Theoretically, DSS has the possibility to miss a frame start event if I disable the hardware interrupts to protect some crucial logic and it might take a while to recover the hardware interrupts. How can I double check the current sub frame and recover the correct frame ID tracking under this extreme scenario?