• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 31 subscribers
  • Views 636 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.

AWR1642: How to disable both transmitters without stopping local oscillator?

Shuo_Li
Prodigy 140 points
Part Number: AWR1642

Hello,

I want to know if the AWR1642 Radar can disable both transmitters but still have LO running inside the chip.

Thanks,

Simon

  • 0
    TI__Genius 15005 points
    Hi Simon,

    You should be able to program the device to schedule chirps with both transmitters turned off.

    Best Regards,
    Anand
  • 0 in reply to Anand Gadiyar
    Prodigy 140 points

    Dear Anand,

    Thank you for your kindly reply. We tried to disable both transmitters in profile_2d.cfg, and below is the configuration: 

    "channelCfg 15 0 0"

    "chirpCfg 0 0 0 0 0 0 0 0"

    "chirpCfg 1 1 0 0 0 0 0 0"

    Then we got an error in both CCS and mmWave Demo Visualizer. 

    The error from CCS: 

    [C674X_0] {module#8}: "dss/dss_main.c", line 2248: error {id:0x10000, args:[0x817e04, 0x817e04]}
    xdc.runtime.Error.raise: terminating execution

    The error from mmWave Demo Visualizer: 

    Debug: Init Calibration Status = 0x5fe

    DSS Exception: dss/dss_main.c, line 2248.

    Do you have any good solution for these problems?

    Thanks, 

    Simon

  • 0 in reply to Shuo_Li
    TI__Genius 15005 points
    Hi,

    The AWR1642 device itself supports chirping with transmitters disabled, however the DSS code in the demo application throws an error if it finds no valid transmitters - you can modify the code to ignore the error as you like.

    The relevant code is in dss/dss_main.c, in the MmwDemo_dssDataPathConfig() function, near line 2248.

    Best Regards,
    Anand
  • 0 in reply to Anand Gadiyar
    Prodigy 140 points
    Thanks for your suggestion. We will try to modify that part.

    Simon