• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 479 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

RTOS/AWR1642BOOST: Minimum frequency slope?

Samuel Miller99
Expert 1005 points
Part Number: AWR1642BOOST
Other Parts Discussed in Thread: AWR1642

Tool/software: TI-RTOS

I am trying to conduct an experiment that leverages the minimum frequency slope of the AWR1642, which is 48.297kHz/us according to the mmWave Link doxygen. This corresponds to 0.048 MHz/us which is the value that I can enter into a configuration file as follows:

profileCfg 0 77 2 1 60 0 0 0 0.048 256 6000 0 0 30

Is this the correct way to implement a chirp with 48.297kHz/us slope? 

  • 0
    TI__Mastermind 24955 points
    Samuel,

    The frequency slope argument for the ProfileCfg CLI command accepts a float value. The units for this value are MHz/usec. In your case, you would need to set this value to 0.048297. The current value that you are attempting to program would be below the minimum allowed value.

    Regards,
    Kyle
  • 0 in reply to Kyle Cousino
    Expert 1005 points

    1) So would the following be a correct configuration? 

    profileCfg 0 77 20 5 80 0 0 0.048297 1 256 6000 0 0 30

    2) Let's say I have the following configuration:

    profileCfg 0 77 20 5 80 0 0 0.06 1 256 6000 0 0 30

    What would the slope of the chirp be? Because it is greater than 0.048297 but less than 0.096594, so what does the device default to?

    Thanks again for the help.

  • 0 in reply to Samuel Miller99
    TI__Mastermind 24955 points
    Samuel,

    If you put in a value of 0.06 in the command line as shown above, the slope value will be 0.048297 when it is passed from the command line into the BSS. The firmware will choose the lower of the two values when located in between two valid chirp values.

    Regards,
    Kyle