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EK-TM4C1294XL: EK-TM4C1294XL with external debugger like XDS110

Hainan Wang
Intellectual 450 points
Part Number: EK-TM4C1294XL

Hi, there

I got a XDS110 for my design with TM4C microcontroller. I tried it with my Launchpad EK-TM4C1294XL but had a problem. Here is what I did:

1st. Removed R6, 7, 8, 10, 11, 15, 16 from the Launchpad. I kept R40 since external debugger is used.

2nd. On CCS7.0, change my project properties -> General -> Connection to TI XDS110 Debug Probe.

3rd. Connect XDS110 debug probe to U6 with an 14pin/10pin adaptor

4th. Connect the ICDI cable to provide power.

Tried to build and problem the chip, here's the error I get:

"Error Connect to target, Error -1170 @0x0"

Anything I did wrong?

  • 0
    TI__Guru**** 191886 points

    Hi,

     I'm not clear with your setup. Is it that you want to use an external XDS110 debug probe to debug the TM4c129 LaunchPad or you want to use the TM4C129 LaunchPad as a debug probe to debug another board?

     When you said you have a XDS110 do you mean you have something like below or you are trying to use another launchPad with an on-board XDS110 debug probe to debug your TM4C129 LaunchPad?

  • 0 in reply to Charles Tsai
    Intellectual 450 points
    Hi, there
    I have a XDS110 just like what you showed in the pic, I do not intend to use TM4C129 Launchpad as a debug probe to debug another board.
    What I like to do is to see if the XDS110 works with my existing Launchpad. So, to be more clear, here is what I have:
    One Ex-TM4C1294 Launchpad;
    One XDS110 Debug Probe
    That's it, I connect the XDS110 to the Launchpad U6; connect Launchpad to computer with USB-miniUSB cable through ICDI connector. Try to program the Launchpad with XDS110 JTAG, not successful.
  • 0 in reply to Hainan Wang
    TI__Guru**** 191886 points

    Hi Hainan,

     If that is the case, there is no need to remove the R6, 7 and other resistors you listed. You remove them if you want to use the TM4C129 as a debug probe to debug another board.

    Below excerpt from the LaunchPad userguide.

    'Debug out of the ICDI is possible by removing resistors R6, R7, R8, R10, R11, R15, R16 and R40 from

    the Connected LaunchPad and use the ICDI to drive JTAG signals out on U6 for the purpose of

    programming or debugging other boards.'

  • 0 in reply to Charles Tsai
    Intellectual 450 points
    Ok, I miss read the document, problem solved
    Thanks
  • 0 in reply to Hainan Wang
    TI__Guru**** 191886 points
    Glad your problem is solved!