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Original question:

TMS570LS3137: Not able to connect to target

TMS570LS3137: Not able to connect to target

sreenivasan m
Genius 3705 points
Part Number: TMS570LS3137


Hi Team,

We have been using TMS570LS3137 controller in our testing and could see the below error recently.

Error connecting to the target:
(Error -180 @ 0x0)
The controller has detected a target power loss.
The user must turn-on or connect the power supply for the target.
(Emulation package 6.0.407.3)

The error suddenly popped up when we were debugging the code by setting breakpoints.

Please let me know if you need further information or any thing that can be done from my end to get more information on this.

  • 0
    TI__Guru**** 198596 points
    Hello Sreenivasan,

    Are you using TMS570LS3137 HDK? Which emulator do you use: XDS100V2 or an external standalone emulator?

    This paragraph is completely copied from link bellow.
    "TVRef
    TVRef is supported on all headers and is used by the XDS to detect the absence of target power and set the input level on EMU and JTAG voltage translation devices within the XDS, if used. For the voltage range supported by your specific product, check with your XDS manufacturer. Adapters are generally available for XDS systems that don't meet the voltage level requirements of a specific device. "

    processors.wiki.ti.com/.../XDS_Target_Connection_Guide
  • 0 in reply to QJ Wang
    Genius 3705 points
    Hi Wang,

    Yes its Evaluation version and we are using XDS100v2 USB debug probe_0/coretex R4.
    The problem, all these days we are using this target without issues. All of a sudden, we are facing this issue.
    Board was never touched in between.
    Also, we are not able to access above processors link mentioned.

    Any way forward further for this issue?
  • 0 in reply to sreenivasan m
    TI__Guru**** 198596 points
    Hello Sreenivasan,

    Are the 5V, 3.3V and 1.2V power supplies on the board OK? There are 3 LEDs showing the status of power rails, those LEDs are located at tight top corner.
  • 0 in reply to QJ Wang
    Genius 3705 points

    Hi Wang,

    No, only 2 LED's are glowing. Will attach the photo of the controller taken when it is not working.
    But, what is not clear is that, no one has touched the controller and we were debugging by having the breakpoint and all of a sudden, we got the error mentioned.
    Can you please tell me what could be the reason for the failure?

    Regards,
    M.Sreenivasan.

  • 0 in reply to QJ Wang
    Intellectual 450 points

    Hi Wang,

    Please find the below snapshot, if this could be of any help

  • 0 in reply to Someswararao malla
    TI__Guru**** 198596 points
    Hello,

    The LED in the middle is powered by the power from micro USB, and the LED at the edge is power supply at P1 Jack. The board has lost the 5V, 3.3V, and 1.2V. The MCU is not powered, so no JTAG connection.

    It might be caused by ESD, or your power supply is out of range, for example 24V.