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AWR1243: Minimum Frame Period

radarJunkie
Expert 2090 points
Part Number: AWR1243

Hello, 

In the ICD inside the AWR_FRAME_CONF_SET_SB, the frame period section shows the typical range to be 1 ms to 1000 ms. Can I set the frame time to be less than that ?

In Radar Studio, if I set up the frame time to be less than 1 ms, the RadatStudio interface seems to be hung up for sometime.

Is this issue due to the software latency of radar studio interface or an actual limitation of awr1243?

I will appreciate your help. 

Regards,

RJ

  • 0
    TI__Mastermind 24955 points
    Radar Junkie,

    Per the ICD, the value you are referring to configures the periodicity of the frames and in the notes, it specifies the range to be from 1 ms to 1000 ms. You cannot set the frame time to be less than that. Data processing occurs in the inter-frame time and thus the minimum 1 ms time. It is not an issue of software latency. Instead, the ICD specifies the range of acceptable values for frame periodicity.

    Regards,
    Kyle
  • 0 in reply to Kyle Cousino
    Expert 2090 points
    Thanks for the quick reply Kyle. Can you please let me know what type of data processing occurs in the dead time ? If I had a frame of single chirp with 150 us time, there is plenty for LVDS or CSI data if I set my frame time to be 500 us.

    Thanks

    RJ
  • 0 in reply to radarJunkie
    TI__Mastermind 24955 points
    Radar Junkie,

    The type of data processing that occurs during inter-frame time depends on the specific application and I cannot provide a blanket answer to this question. It will vary based on your target application. Some applications require more than than others to complete all of the required tasks. This is why TI provides a minimum frame periodicity value. You can certainly try to set a frame periodicity of 500 us, but TI can only guarantee the behavior of our devices when using values that are specified in the ICD.

    Regards,
    Kyle
  • 0 in reply to Kyle Cousino
    Expert 2090 points
    Thanks Kyle for your response. I will perform some experiments to see what happens when the frame time is less than 1 ms.

    Regards,

    RJ