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Original question:

CCS/LAUNCHXL-CC26X2R1: IcePick_C: Error: (Error -261 @ 0xFFFFFEFB) Invalid response was received from the XDS110 (Emulation...

LAUNCHXL-CC26X2R1: CC2640R2 Debug Error -241: Unable to Connect Even After Mass Erase

Saravnan R
Prodigy 10 points
Part Number: LAUNCHXL-CC26X2R1
Other Parts Discussed in Thread: CC2640R2F, UNIFLASH

Tool/software:

I am working with the CC2640R2 and encountering an issue while trying to debug the device through Code Composer Studio. I am not using an external XDS110 debugger but relying on the built-in debug interface of the CC2640R2. The error I encounter is:

Error connecting to the target:
(Error -241 @ 0x0)
A router subpath could not be accessed.
A security error has probably occurred.
Make sure your device is unlocked.
(Emulation package 9.13.0.00201)

Details:

  • Device: CC2640R2
  • Setup: Using the CC2640R2's onboard debug interface (no external XDS probe).
  • IDE: Code Composer Studio v12.5.0
  • Error Frequency: Occurs every time I attempt to connect to the target.

Request for Help:

I suspect that the debug interface might still be locked or there’s an issue with the device configuration. Are there specific steps or tools to ensure the CC2640R2's debug interface is fully unlocked and accessible?

Thank you for your support!

  • 0
    TI__Guru** 101450 points

    Hi, 

    Thank you for reaching out. 

    In general, this kind of issue is caused either by conflicting programs trying to access the board, or incorrect wireing between the XDS110 and the CC2640R2F.

    Could you please ensure only CCS is open on your computer, and all the other applications (UniFlash, SmartRF Studio, Windows Device Manager) are closed?

    Could you please provide a photo of your board to see the connections?

    Best regards, 

  • 0 in reply to Clément
    Prodigy 10 points

    Dear Clément,

    Thank you for your response and the suggestions.

    I have ensured that only Code Composer Studio (CCS) is open on my computer, and all other applications such as UniFlash, SmartRF Studio, and Windows Device Manager are closed. However, the issue persists.

    I have attached a photo of my board showing the connections for your reference here the PIN DI03  is TX and DI02 is RX here here I am doing UART  project . Please let me know if there are any adjustments or further steps I should take.

    Looking forward to your guidance.  

    Best regards,
    Saravanan

  • 0 in reply to Saravnan R
    Prodigy 10 points

    HI,
    This is my debug configuration is this correct.

  • 0 in reply to Saravnan R
    TI__Guru** 101450 points

    Hi, 

    Everything you have shared looks good. 

    For sanity, could you check whether the issue reproduces with an other board and a new USB cable? 

    Best regards, 

  • 0 in reply to Clément
    Prodigy 10 points

    Hi,

    "Thank you for your response. This is my second board, and I encountered the same issue as before. The board works properly when used with another laptop running CCS. However, when I try to use it on my laptop, the board enters a lock state. Afterward, even when using the same board on the other laptop, it still shows the lock state."

    Best regards,

    Saravanan,

  • 0 in reply to Saravnan R
    TI__Guru** 101450 points

    Hi, 

    Are you using the same projects on the two computers? 

    In general you can force the debug interface to be locked using the CCFG. I'd recommend checking this. 

    Regards, 

  • 0 in reply to Clément
    Prodigy 10 points

    Hi,
    I am using same project on two computers
    could you tell be some what brief about debug interface to be locked using the CCFG! 

  • 0 in reply to Saravnan R
    TI__Guru** 101450 points

    Hi, 

    The CCFG is detailed in section §9.1 of the Technical Reference Manual - https://www.ti.com/lit/pdf/swcu117 

    In a nutshell, your project will overwrite certain of the settings set by <SDK>\source\ti\devices\cc26x0r2\startup_files\ccfg.c - this means if the SDK files are not identical (e.g. accidentally altered) on both machines, then there is risk for an issue to occur. 

    Best regards, 

  • 0 in reply to Clément
    Prodigy 10 points

    Hi,
    Thanks, for your response I will check  and let you know.

    Best regards,

    Saravanan.

  • 0 in reply to Saravnan R
    TI__Guru** 101450 points

    Hi,

    I'll mark the thread resolved as I am about to be out for the end of year holidays. 

    If needed, please open a new thread as ownership over this one will not be transferred. 

    Best regards, 

  • 0 in reply to Clément
    Prodigy 10 points

    Hi,

    My problem is not resolved yet. Now the board is locked can you send me some reference video, could  you please provide resource person to help me over this.  I was checked the SDK  files are identical. 

    Best regards,

    Saravanan.