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EVM430FR6989 calibration problem

Cash Hao11
Mastermind 46765 points


Hi,

I am using an old version of EVM430FR6989 (Main Board Rev 7). Using the preload code to test the Gas/Water meter. This board always get stucked and display 8888. Is there any rules while this chip doing the calibration, like how to place the motor board.  How can I solve the stuck problem?

Thanks!

Best regrads,

Cash Hao

  • 0
    TI__Genius 15370 points

    Hi Cash, 

    A few comments:

    1. How do you know its an old rev of the board? Are you sure none of the hardware has been modified?
    2. Have you tried reprogramming the board?
    3. Can you step through the code during initialization and see where it is getting stuck?

    Finally, take a look at the TI Design for this part. Section 6 contains a description of the test setup and how to get it operating correctly:

    Best regards, 

    Caleb Overbay

  • 0 in reply to Caleb Overbay
    TI__Mastermind 46765 points
    Thanks for the help!
    1. The board in my hand is different from the one on the User Guide
    2.The FR6989 on the board is a sample chip, and can not be programmed
    3. I have applied new FR6989, and replace the old one on the board. And debugging it right now. If there is any problem, I will make you noticed.
    Best regards,
    Cash Hao
  • 0 in reply to Cash Hao11
    TI__Intellectual 1330 points
    Hi Cash Hao,
    The motor board needs to be centered in front of the sensor and the distance is limited. I guess, you tried to put the motor board close to the sensor and it is as well not working?! Also the distance needs to be fixed, so don’t move the board during calibration and also not afterwards.

    By the way, which sensor board are you using?

    Best regards,
    Tobias
  • 0 in reply to Tobias Oschmann
    TI__Mastermind 46765 points

    Hi Tobias,

    The sensor board is 90º LC sensor.And what is the exact distance between the sensor board and motor board?

    Thanks!

    Best regards,

    Cash 

  • 0 in reply to Cash Hao11
    TI__Genius 15370 points
    Hi Cash,

    You mentioned the board you had is different than the one on the user guide. Is it a completely different board or what are the differences? Have you been able to step through the code and see where you are getting stuck?

    Best regards,
    Caleb Overbay

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