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Original question:

CCS/TMDSEMU110-U: firmware update

CCS/TMDSEMU110-U: firmware update

Jack YAN
Prodigy 40 points

Part Number: TMDSEMU110-U
Other Parts Discussed in Thread: CC2650

Tool/software: Code Composer Studio

Thanks Ralph,

Just saw your comment after I fixed the issue. Do you have an example to reconfigure the TDI/TDO with a customized GEL?

Sincerely

Jack 

  • 0
    TI__Guru**** 171729 points
    Jack,

    GEL does not configure the Debug Probe but instead the target device.

    The file responsible for configuring the pod is a .dat file that is generated in the temporary directory of CCS - this file is named either ccBoard0.dat or testBoard.dat (created when clicking on Test Connection button).

    However, the two values for the 2-pin cJTAG are either a UART port or a TDO pin (which may or may not work in your case) - there is no "tri-state" setting that completely releases the TDI/TDO pins.

    I will check a few additional details and report back.

    Regards,
    Rafael
  • 0 in reply to desouza
    TI__Guru**** 171729 points

    Jack,

    I confirmed with the dev team that what I said before is incorrect. The 2-pin cJTAG should leave both TDI/TDO ports in tri-state, thus not requiring you to mechanically strip the pins to have access to the SPI.

    Since we are at it, it seems the very early design of the Sensortag DevPack puts together two pins of the XDS110 device (TM4C129), which is not really recommended. The design of the Launchpads was matured and it is the recommended choice.

    From the file SWRR136 (Sensortag DevPack schematics), the XDSET_TDI net is connected to two pins on U1A (TM4C1294) - pin 38 (PA5/SSIOXDAT1) and pin 20 (PK2/AIN18) - and to the pin 16 of J1. This pin 16 is the connector to the Sensortag itself, which becomes pin 15 of J2 - net DP8/SCLK/TDI - on the file SWRR134 (CC2650 Sensortag schematics). This same net connects to both pin 6 of U10 (serial SPI Flash) and to pin 27 of U1B (CC2650 7x7).

    Hope this helps,
    Rafael