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CCS/TMDSEMU110-U: Debug probes replacement

Stefano Pessina
Prodigy 150 points
Part Number: TMDSEMU110-U
Other Parts Discussed in Thread: TM4C129XNCZAD

Tool/software: Code Composer Studio

Dear all

I found that the XDS100v2 with TI 20-pin connector debug probes is out of stock and it's finally replaced by the TMDSEMU110-U.

It this probe compatible with the TM4C129XNCZAD microcontroller?

My factory deployed a product with this processor and design the programming connector directly on the board based on the XDS100V2 debug probe. We have thousands installations and I need to be sure that our probes can be replaced in the future.

You can find below the connector for JTAG interface actually present on our product for programming the microcontroller.

Thanks you so much, best regards

Stefano

  • 0
    Guru 117855 points

    Vendor agent should best  inform/advise.

    May I suggest - for your 'future designs' the ARM '10 pin, 0.050" pitch, dual row' JTAG/SWD (newer) standard?     The saving in board 'real estate' is most welcomed...    And 'yes' - there are 'Adapters' which cleanly transition from 20 pin, 0.1" pitch - to the newer - less 'space gobbling' - 10 pin standard.

    Note too - moving to 'SWD' enables your harvest of 2 extra GPIO - most always useful...

  • 0 in reply to cb1_mobile
    Prodigy 150 points
    Dear cb1_mobile

    Thanks you for your advice.

    So I wait if some vendor agent could give me an answer.

    Thanks you, regards
  • 0
    TI__Guru*** 135355 points

    Hello Stefano,

    All TM4C MCU's are supported by that device. As listed on the product page, all the following devices are supported:

    Devices supported:

    • SimpleLink MCUs (CC13xx, CC26xx, CC3x, MSP432)
    • C2000, TM4C12x and Hercules microcontrollers
    • DSPs with the exception of C54x, C62x, C670x, C671x and C672x
    • ARM Cortex A based processors
    • UCD3x Digital Power Controllers

  • 0 in reply to Ralph Jacobi
    Prodigy 150 points
    Dear Ralph

    Thanks you for your answer.

    I'm happy to hear that my microcontroller is supported by that probe.

    Can you confirm if the pinouts attachted in my firt message is also compatible? Or if I need to buy some adapter or make it by myself?

    Thanks you so much.
    Best Regards
    Stefano
  • 0
    Guru 117855 points

    Hello Stefano,

    I'm presenting a,  'JTAG Connector compilation' - which my staff extracted from an 'ARM document.'     (we believe it to be correct - and staff finds it to match (signal-wise) your neat diagram)

    May I add - your use of those 33R series resistors - imho - prove greatly helpful in 'adding robustness' to the MCU's JTAG I/O.      Also - it is believed that your protective diodes are (both) fast responding - and Schottky - both required to maximize their protective role.     Those components should be 'placed' - as close to their targeted MCU pins - as possible.  

    I'm not in favor of that 33R tied to nRESET - my preference would be for 100R - minimum.     (extends the RC time constant)

    Here now - ARM's JTAG Connector Guide/Update:

    Ciao, 

    cb1

  • 0 in reply to Stefano Pessina
    TI__Guru*** 135355 points
    Hello Stefano,

    In addition to what cb1 provided, couple comments on my end.

    The pinout you show is slightly confusing in that it is a single row header, is that how it is setup, or is that just a way to represent a 2x10 connector? If it's the 2x10, that should be fine. If not, I am not sure we'd have a connector for a 1x20 row header.

    It looks like your connector graphs to the ARM-20 Pin connector. If so, you'll need an adapter between the 20-pin CTI connector and what you have. I believe the probe includes this, as it mentions a "TI 20-pin to ARM Cortex 20-pin converter adapter" is included.

    You should reference the Debug Probe's dedicated User's Guide which explains the natively supported connectors: www.ti.com/.../sprui94.pdf

    TM4C also has a JTAG guide if you want to check that out which includes descriptions for the connections between MCU and specific connector types: www.ti.com/.../spma075.pdf
  • 0 in reply to Ralph Jacobi
    Prodigy 150 points
    Dear Ralph

    Yes the connector is 2x10. I will buy that probe thanks you so much for help!

    Regards,
    Stefano
  • 0 in reply to cb1_mobile
    Prodigy 150 points
    Dear cb1

    Thanks you so much for your help!

    Yes we use fast and schottky diodes.

    Thanks you, regards
    Stefano