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CCS/RM48L952: A router subpath could not be accessed

Part Number: RM48L952

Tool/software: Code Composer Studio

Dear Sir

I am working on TI HERCULES RM48X series EVALUATION BOARD.It was working fine previously but now the following below mentioned error occurs.

Dap: 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 6.0.504.1)
Dap: Error connecting to the target: (Error -1170 @ 0x0) Unable to access the DAP. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 6.0.504.1)

 

Please give some solution regarding the above mentioned problem.

  • Hello Sonal,

    Have you programmed your executable code to the flash? Id the red ERR led on the launchpad turned on?

    It looks like the code you programmed is making the part enter an exception state repeatedly. This prevents the CPU from entering a debug state, resulting in the behavior you observe. You need to try to erase the part, assert and release nRST to see if the erase command is able to halt the CPU and erase the flash.

    Please try this procedure to let CPU enter a debug state:

    1. Open the target configuration window, and launch the selected the configuration
    2. Switch to debug window
    3. Press the reset (nRST) button and hold it
    4. Click “Connect Target” immediately after you release the nRST button
    5. The board should be connected after couple tries

  • Hello,

    Thank u for ur reply.

    I have tried to connect the target but again the same message appears "unable to access the DAP".

    In debug window,

    Texas Instruments XDS100v2 USB Debug Probe_0/IcePick connected successfully but 

    Texas Instruments XDS100v2 USB Debug Probe_0/Dap (Disconnected) is unable to connected.

    ERR LED is not turned ON &Yes,I have programmed the code in flash.

  • Hello,

    Since the running code prevents the CPU from entering a debug state, the only way is to use the procedure I mentioned last time:

    1. Open the target configuration window, and launch the selected the configuration
    2. Switch to debug window
    3. Press the reset (nRST) button and hold it
    4. Click “Connect Target” immediately after you release the nRST button
    5. The board should be connected after couple tries