IWR1443: APLL calibration status

Hello.

Do you mean the return value for the rlRfInit function when you say APLL update flag?  From the documentation, it mentions that the return value for the initialization functions return 0 if the calibration was successful, and 1 if there is a failure.  Seeing all 0s indicate that you are not running into any failures upon front-end initialization/calibration.

Sincerely,

Santosh

Hi, Santosh,

What I am referring to are the structures

typedef struct rlRfInitComplete {...,rlUInt32_t calibStatus,...}

and

typedef struct rlRfRunTimeCalibReport {...,rlUInt32_t calibUpdateStatus,...}

in mmwavelink.h.

According to the comments in mmwavelink.h, these flags are set to 1 when the correction values are updated.

This APLL updated flag is always 0 for both RF init calibration and runtime calibration, so I was curious and asked this question.

Regards,

Hiroyuki

Understood.

Looking through those structs, I do not see the APLL update flag you are mentioning.  Are you referring to the calibStatus field in those two structs?  If so, those flags are set to 1 only if those calibrations failed or not performed at least once.  The calibUpdate/calibUpdateStatus flags only get set to 1 if the calibration requires a reconfiguration of the RF.  If you are talking about the calibUpdate flag, then I think it would only change to 1 if the values are changing.  If you run the device in debug mode, you can maybe check the values that you are expecting change in to see if they are actually changing.  I would suspect that they are not.

Sincerely,

Santosh

HI Santosh,

Sorry, I'm referring to The calibUpdate/calibUpdateStatus flags.

I understood that these flags are set to 1 if a reconfiguration occurs due to a temperature change.

Bit1 (APLL flag) is never set to 1 even during RF init clibration or run time calibration where there is a temperature change of 10 degrees or more. Is this correct operation?

Regards,

Hiroyuki