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Original question:

AWR2243: Error when applying AWR2243 patch to Processor SDK Radar v3.8

AWR2243: AWR2243 TDA2xx Error Generating Calib_Coeff.txt with create_calib_coefs.m

Shanmukha Saketha Ramanuj Samavedam
Prodigy 37 points
Part Number: AWR2243

Hello Community,

We have an AWR2243 based Cascade Radar Evaluation board with a TDA2xx capture card.

We have been successful in booting it with the app images provided within the SDK. For our next steps we wish to use the calibration coefficients we generate during the manual/mmwave studio process in the real time captures.

I see that there's a way to do it using the MATLAB program "create_calib_coeffs.m"  available under the 'cascade_radar_object_detect' use case with in the Processor SDK Radar.

But when running the script, we are encountering an error on line that has "load CC" which can be seen below.

MATLAB screenshot

Is this an issue with Path/Directory settings.?

Thanks you in advance,

Saketha Ramanujam,

A.S.U.

  • 0
    TI__Guru 68140 points

    Hi,

    Please refer this user guide for cascade setup calibration

    C:\ti\mmwave_studio_03_xx_xx\mmWaveStudio\MatlabExamples\AWRx_TX_Channel_Calibration_Script_User_Guide.pdf

    Regards,

    Jitendra

  • 0 in reply to Jitendra Gupta
    Prodigy 37 points

    Hi Jitendra,

    Thank you for your reply. We were able to perform phase calibration using the mmWave studio setup as mentioned in the guide.

    The problem arises in generating the calib_coeff.bin file that needs to be loaded onto the sd-card which runs the sample use cases with the radar sdk.

    Is there any documentation regarding using calibration coefficients in real time that we are missing out on?

    Thanks,
    Saketha Ramanujam.

  • 0 in reply to Shanmukha Saketha Ramanuj Samavedam
    TI__Guru 68140 points

    Hi Saketha,

    Please refer c:\ti\mmwave_studio_03_00_00_14\docs\mmwave_studio_cascade_user_guide.pdf

    C:\ti\mmwave_studio_03_00_00_14\mmWaveStudio\MatlabExamples\AWRx_TX_Channel_Calibration_Script_User_Guide.pdf 

    Regards,

    Jitendra

  • 0 in reply to Jitendra Gupta
    Prodigy 37 points

    Hello Jitendra, 

    Thank you for your response. We have followed your instructions and performed the phase calibration using the manual mentioned above.

    However we would like to use these calibration coefficients with use cases in the radar sdk. There's an error generated while using 

    "C:\PROCESSOR_SDK_RADAR_03_08_00_00\vision_sdk\apps\src\rtos\radar\src\usecases\cascade_radar_object_detect\create_calib_coefs.m" file.

    As per my personal research I don't see much of documentation around or about that script. Could you please help me out by pointing in the right direction so as to get the required file to be used in real time?

    Thanks,

    Saketh

  • 0 in reply to Shanmukha Saketha Ramanuj Samavedam
    TI__Guru 68140 points

    Hi Saketh,

    Let me check with original writer of this Matlab script and get back to you in few days.

    We have holidays in India, so please expect a delay in our response.

    Regards,

    Jitendra