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UCD3138CC64EVM-030: UCD3138 JTAG Connection Problems

Martin
Prodigy 170 points
Part Number: UCD3138CC64EVM-030
Other Parts Discussed in Thread: UCD3138,

Part number：UCD3138CC64EVM-030（UCD3138）

Debugging probe：XDS110 JTAG 

Development Environments：Code Composer Studio 12.5.0

problems：

Following the steps in the section How to Unlock Using JTAG in the reference document《 Avoiding UCD3138 Device Locking》 (of course our purpose is not to unlock the device but to successfully connect the device by JTAG), after Test Connection, an error occurs, and JTAG cannot be used successfully. the error screenshot is shown below:

We also searched the forums to try to resolve this issue and found a variety of causes for this error, we tried modifying the JTAG frequency to 1M, setting the project to UCD3138 Active, and modifying the IOMUX register to enable the JTAG function, but none of them solved the problem.

We hope that you will be able to help  us, thank you.

  • 0
    TI__Genius 14580 points

    What JTAG emulator is used?

  • 0 in reply to Sean Xu
    Prodigy 170 points

    TMDSEMU110-U — XDS110 JTAG Debug Probe

  • 0 in reply to Sean Xu
    Prodigy 170 points

    Here's the full error log.

    Can you help me with this?

    [Start: Texas Instruments XDS110 USB Debug Probe_0]

     

    Execute the command:

     

    %ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -S integrity

     

    [Result]

     

     

    -----[Print the board config pathname(s)]------------------------------------

     

    C:\Users\ADMINI~1\AppData\Local\TEXASI~1\

        CCS\CCS\0\0\BrdDat\testBoard.dat

     

    -----[Print the reset-command software log-file]-----------------------------

     

    This utility has selected a 100/110/510 class product.

    This utility will load the adapter 'jioxds110.dll'.

    The library build date was 'Sep  6 2023'.

    The library build time was '09:57:39'.

    The library package version is '9.13.0.00201'.

    The library component version is '35.35.0.0'.

    The controller does not use a programmable FPGA.

    The controller has a version number of '5' (0x00000005).

    The controller has an insertion length of '0' (0x00000000).

    This utility will attempt to reset the controller.

    This utility has successfully reset the controller.

     

    -----[Print the reset-command hardware log-file]-----------------------------

     

    The scan-path will be reset by toggling the JTAG TRST signal.

    The controller is the XDS110 with USB interface.

    The link from controller to target is direct (without cable).

    The software is configured for XDS110 features.

    The controller cannot monitor the value on the EMU[0] pin.

    The controller cannot monitor the value on the EMU[1] pin.

    The controller cannot control the timing on output pins.

    The controller cannot control the timing on input pins.

    The scan-path link-delay has been set to exactly '0' (0x0000).

     

    -----[An error has occurred and this utility has aborted]--------------------

     

    This error is generated by TI's USCIF driver or utilities.

     

    The value is '-233' (0xffffff17).

    The title is 'SC_ERR_PATH_BROKEN'.

     

    The explanation is:

    The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.

    An attempt to scan the JTAG scan-path has failed.

    The target's JTAG scan-path appears to be broken

    with a stuck-at-ones or stuck-at-zero fault.

     

    [End: Texas Instruments XDS110 USB Debug Probe_0]

  • 0 in reply to Martin
    TI__Genius 14580 points

    I haven't used XDS110. I used to use XDS510. I think XDS110 should work.

    What is purpose to use JTAG here ? For the debugging firmware, I think FDPS (GUI) device GUI is more convenient. Have you tried UCD GUI?

  • 0 in reply to Sean Xu
    Prodigy 170 points

    Thanks for the reply, the XDS110 is what the datasheet suggests. We have used the GUI, but we are currently in the pre-learning phase and want to familiarise ourselves with the code structure through JTAG debugging. Can you contact the relevant technician to help us with this?

  • 0 in reply to Sean Xu
    Prodigy 170 points

    Hi, I successfully connected the JTAG, but I encountered a new problem, as soon as I clicked "Resume" or “Step Return”, the programme would run away.

    What's the cause of this? Is there a solution?

    Regards

  • +1 in reply to Martin
    TI__Genius 14580 points

    I found a document how to configure UCD3138 JTAG. It can help. Let me know your email address, and I can email you.

  • 0 in reply to Sean Xu
    Prodigy 170 points

    Thanks,this is my email：Martin.Yang@etron.cn.Can you give some advice on my new problem?

  • 0 in reply to Sean Xu
    Prodigy 170 points

    Sean,Thanks for your support.

    I think it worked.

    Although I still have some doubts, this problem is solved for now.

    I'll try and fix it.New issues may be raised under a separate topic.

    Best regard.