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DRV10983: Register reading + writing not successful GUI error message

Intellectual 270 points

Replies: 14

Views: 1640

Part Number: DRV10983

Hi TI team,

I have successfully worked on the DRV10983-Q1 EVM. Able to perform some of the basic functionalities using the GUI (i.e. I2C Speed Control Override (On the Display tab), and Startup setting (On the Basic Settings tab)). I have similar prototype board that uses the DRV10983 mimicked off the Application schematic in the Datasheet. This prototype board when powered with the 3 phase motor wires connected to a sample BLDC motor, without any prior I2C programming or Analog adjustments, the motor runs in closed loop control as the motor was running with DRV10983-Q1 EVM PCB. I would like to program the prototype DRV10983 board using the I2C interface being used for EVM (Meaning with the use of the 10-pin ribbon cable connected to USB2ANY box which then connects to the DRV10983-Q1 EVM board). There are header holes available for test points next to the 10-pin ribbon connector which are available for this purpose.

When I power-up my prototype board, without powering the DRV10983-Q1 EVM board, to be able to program the board using the I2C interface in the GUI I get 3 error messages.

Please note: I have tried selecting both DRV10983, and DRV10983-Q1 EVM at the start-up prompts of the GUI to resolve the issue when using the prototype board. Note also that the SDL, SDA, FG, and SPEED wires from prototype board are the only wires being used to connect to the EVM board. I have not tried soldering the wires thru the holes in the "P2" area of the EVM. This will probably by next step if not successful. Also the EVM has not been powered up during the I2C programming phase only the prototype board that is being tested (Assuming that the I2C programming will still work regardless of whether the EVM powered or not when the prototype board using the DRV10983 is being used). 

Please provide any input at your earliest on how to resolve this situation and if there are similar case examples your team maybe able to reference me in the E2E forum.

Thank you for your support.

Best Regards

Mohammad Atif 

  

  • In reply to Brian Schmidt:

    Mohammad,

    Since I haven't heard from you I'm going to assume that direct connection to the USB 2 ANY was successful.

    If not let me know.

    Thanks,
    Brian
  • In reply to Brian Schmidt:

    Hi Brian,

    I tried the above wiring, as suggested, with our board. So far this has not worked. I am not sure what is missing. Continue to receive the same register "write", and
    read" errors. I can share other details with you. Conversely, if its possible for you to reach out to Innocent Irakoze, at TI, he would be able to provide other details that I have shared with him.

    Regards

    Mohammad

  • In reply to Mohammad Atif:

    Mohammad,

    So from the other communications with the team it sounds like it was an issue with a sleep mode device.

    I'll plan on closing this thread.

    Thanks,
    Briann
  • In reply to Brian Schmidt:

    Yes that is correct. Appreciate your input & support. Thx.

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