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Problems with power on TMS570 LS3137

Alexandr Lyalko
Prodigy 50 points

Hello.

My problem is that the termination of the debug session led to the crash of the memory, then computer was rebooted. After that, on the development board TMS570 LS3137 dimmed power-LEDs and power to the board is not supplied. P1 connector on the voltage 5.2 V. I suspect that the problem is in the converter from 5V to 12V. 

Please answer me how to solve this problem.

Thanks.

  • 0
    TI__Guru 59540 points

    Hello Alexandr,

    We have received your question and one of our hardware experts will be replying to your post in the near future.

  • 0
    TI__Guru**** 199286 points

    Hi Alexandr,

    Can you please measure the voltage at TP12 (5V), TP14(1.2V), and TP16(3.3V)? If TP12 value is not 5V, please check the voltage at right end of F1 (on HDK backside).

    The voltage at the right end of F1 should be your power input (5V or 12V). 

    Regards,

    QJ


  • 0 in reply to QJ Wang
    Prodigy 50 points

    Hi QJ.

    The voltage at TP12 = 0V, at TP14 = 0V, at TP16 = 0V. When XDS100v2 connected the voltage at TP12 = 0V, at TP14 = 1.12 V, at TP16 = 1.3 V. The voltage at the right end of F1 is 5,21V. The voltage at the left end of F1 is 0V.
    When I contact power-connector P1 and element L8 (right end), HDK started working. Is it possible to solder a jumper between P1 and L8 to ensure operability of HDK or I must to replace some of the elements?

    Thanks and Regards, Alexandr.

  • 0 in reply to Alexandr Lyalko
    TI__Guru 59540 points

    Hello Alexandr,

    Given the time since your last post, I assume you have been able to work through your issue with the HDK. As a result, we will close this thread. If you have any additional questions please feel free to open a new E2E thread.