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LDC1614: Disable Auto cal function

Takashi Onawa
Genius 13200 points
Part Number: LDC1614

Hi Team,

My customer wants to know how to disable auto calibration function. 

Can I turn off the function completely by the following two registers?

①CONFIG - RP_OVERRIDE_EN [12] ： b1
②CONFIG - AUTO_AMP_DIS [10] ： b1

Regards,

Takashi Onawa

  • 0
    TI__Genius 13200 points

    Hi Team,

    In addition to the questions below.　I have one more question.

    I am not sure what is the difference among the following mode and functions. Could you please give the supplementary explanation?
    - Auto-Calibration Mode
    - Automatic IDRIVE Setting
    - Auto-amplitude correction

    Regards,

    Takashi Onawa

  • 0
    TI__Expert 3665 points

    Hi Takashi,

    The auto calibration function can be disabled via the following register, auto calibration is refering to the auto amplitude function.

    The Automatic IDRIVE setting can be turned off via the following register:

    Auto calibration is to dynamically adjust the  current drive of the sensor to adjust for a proper sensor amplitude, this is for a known Rp value of the sensor. Automatic IDRIVE is for prototyping purposes when the Rp of the sensor is unknown and you are attempting to find the proper range.

    - Auto-Calibration Mode (8.1.5.4 Sensor Auto-Calibration Mode)
    - Automatic IDRIVE Setting  ( In Section 8.1.5.2 Automatic IDRIVE Setting with RP_OVERRIDE_EN of Datasheet)
    - Auto-amplitude correction( This is the function that is acheived through auto calibration mode)

  • 0 in reply to Julio Apps
    TI__Genius 13200 points

    Hi Apps-san,

    Thanks for your prompt response on this.

    It seems that the picture is not attached properly. could you attach it again?

    Regards,

    Takashi Onawa

  • 0 in reply to Takashi Onawa
    TI__Expert 3665 points

    Takashi-san,

    I was just confirming the resister you outlined above. Photos not needed. Refer to the following sections for more detail:

    - Auto-Calibration Mode (8.1.5.4 Sensor Auto-Calibration Mode)
    - Automatic IDRIVE Setting  ( In Section 8.1.5.2 Automatic IDRIVE Setting with RP_OVERRIDE_EN of Datasheet)
    - Auto-amplitude correction( This is the function that is acheived through auto calibration mode)