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TMS320F28335: communication issue when connecting CCS to target TMS320F28335 Card. DIY usb to jtag by FT2232D

Part Number: TMS320F28335

Hi All 

Happy new year!. I facing issues with my USB connect to TMS320F28335. Explain below:

I made circuit follows the diagram below, configure on the FT2232D is successful and PC able to recognize the two usb port debug and Auxiliary. . But when connecting to the CCSV8, The connection fail, shows Error -180 which refer to the  Vref loss. But I do not understand which pin and how can this Vref send out since I using USB port not emulator anymore. my Vref is 3.3V. 

  • [Result]


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

    C:\Users\sunch\AppData\Local\TEXASI~1\CCS\
    ti\0\0\BrdDat\testBoard.dat

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

    This utility has selected a 100- or 510-class product.
    This utility will load the adapter 'jioserdesusb.dll'.
    The library build date was 'May 30 2018'.
    The library build time was '23:03:35'.
    The library package version is '8.0.27.9'.
    The library component version is '35.35.0.0'.
    The controller does not use a programmable FPGA.

    An error occurred while hard opening the controller.

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

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

    The value is '-180' (0xffffff4c).
    The title is 'SC_ERR_CTL_NO_TRG_POWER'.

    The explanation is:
    The controller has detected a target power loss.
    The user must turn-on or connect the power supply for the target.

    [End: Texas Instruments XDS100v1 USB Debug Probe_0]
  • Hi,

    Have you resolved the issue? I am seeing the above post marked as resolved.

    Regards,
    Veena
  • Hi Veena

    Thanks a lot for your reply. Issue due to the clock signal on IC U17, After replace then it works. Thanks