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Original question:

TMDSEMU110-U: problems with CTI20

TMDSEMU110-U: CTI20 Male to ARM20-ETM Female adapter pinout seems wrong

SH
Intellectual 430 points

Part Number: TMDSEMU110-U

I have TMDSEMU110-U debug probe which supplied with different adapters.

The 'CTI20 Male to ARM20-ETM Female' adapter's pinout on the ARM20-ETM side seems wrong and is not following information shown in here (www.ti.com/.../sprui94.pdf or in here (https://software-dl.ti.com/ccs/esd/documents/xdsdebugprobes/emu_jtag_connectors.html#cti-20-pin-header-information)

Some pins that are not expected to be connected are connected to each other rendering this adapter useless in its intended application.

Where could I get the correct adapter for this?

  • 0
    TI__Expert 4060 points

    Hi SH,

    Which pins are incorrectly connected together? Can you describe them based on the pin out that you provided? 

    Can you share images of the pins which are connected to each other that shouldn't be along with how you tested this connection? 

    Kind regards,
    AJ Favela 

  • 0 in reply to AJ Favela
    Intellectual 430 points

    As an example, pin-1 which is marked as VTREF on CM20 pinout has short (measured ~0 ohm with a multimeter) to pin-19 which is marked as GND on CM20 pinout. These results shorting the VTREF reference voltage to GND once the adapter board is plugged between the target and the debugger.

  • 0 in reply to SH
    TI__Expert 4060 points

    SH, 

    Which device are you attempting to connect to? 

    Kind regards,

    AJ Favela