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CCS/TMS320F28335: Error connecting to the target

Part Number: TMS320F28335
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

While executing a code on SIMULINK, the MCU is suddenly Locked

I obtained the following error:

SEVERE: C28xx: Unable to determine target status after 20 attempts
SEVERE: C28xx: Failed to remove the debug state from the target before disconnecting.  There may still be breakpoint op-codes embedded in program memory.  It is recommended that you reset the emulator before you connect and reload your program before you continue debugging
SEVERE: emulation failure occurred
SEVERE: Error connecting to the target: emulation failure occurred
SEVERE: Cannot perform operation, target is not connected.
SEVERE: Error reseting target: Cannot perform operation, target is not connected.
do you have any suggestions to solve this problem
Thanks
  • Firas,

    Are you able to power cycle the board and reconnect using just the CCS IDE, or do you get a similar error using that interface?  If you could right click on the target configuration and then execute the "test connection" and report back the message it will help the debug.

    I'd like to better understand if the issue is a general connection issue or something more SIMULINK specific.

    Best,

    Matthew

  • Hello,

    Thanks for your response,

    I got the same error with CCS,

    after execution of "test connection" i got the following:

    [Start: Texas Instruments XDS100v1 USB Debug Probe]

    Execute the command:

    %ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -F inform,logfile=yes -S pathlength -S integrity

    [Result]


    -----[Print the board config pathname(s)]------------------------------------

    C:\Users\DR48CA~1.KHA\AppData\Local\TEXASI~1\
    CCS\ccs1000\0\0\BrdDat\testBoard.dat

    -----[Print the reset-command software log-file]-----------------------------

    This utility has selected a 100- or 510-class product.
    This utility will load the adapter 'jioserdesusb.dll'.
    The library build date was 'May 7 2020'.
    The library build time was '21:10:18'.
    The library package version is '9.2.0.00002'.
    The library component version is '35.35.0.0'.
    The controller does not use a programmable FPGA.
    The controller has a version number of '4' (0x00000004).
    The controller has an insertion length of '0' (0x00000000).
    This utility will attempt to reset the controller.
    This utility has successfully reset the controller.

    -----[Print the reset-command hardware log-file]-----------------------------

    The scan-path will be reset by toggling the JTAG TRST signal.
    The controller is the FTDI FT2232 with USB interface.
    The link from controller to target is direct (without cable).
    The software is configured for FTDI FT2232 features.
    The controller cannot monitor the value on the EMU[0] pin.
    The controller cannot monitor the value on the EMU[1] pin.
    The controller cannot control the timing on output pins.
    The controller cannot control the timing on input pins.
    The scan-path link-delay has been set to exactly '0' (0x0000).

    -----[The log-file for the JTAG TCLK output generated from the PLL]----------

    There is no hardware for programming the JTAG TCLK frequency.

    -----[Measure the source and frequency of the final JTAG TCLKR input]--------

    There is no hardware for measuring the JTAG TCLK frequency.

    -----[Perform the standard path-length test on the JTAG IR and DR]-----------

    This path-length test uses blocks of 64 32-bit words.

    The test for the JTAG IR instruction path-length succeeded.
    The JTAG IR instruction path-length is 38 bits.

    The test for the JTAG DR bypass path-length succeeded.
    The JTAG DR bypass path-length is 1 bits.

    -----[Perform the Integrity scan-test on the JTAG IR]------------------------

    This test will use blocks of 64 32-bit words.
    This test will be applied just once.

    Do a test using 0xFFFFFFFF.
    Scan tests: 1, skipped: 0, failed: 0
    Do a test using 0x00000000.
    Scan tests: 2, skipped: 0, failed: 0
    Do a test using 0xFE03E0E2.
    Scan tests: 3, skipped: 0, failed: 0
    Do a test using 0x01FC1F1D.
    Scan tests: 4, skipped: 0, failed: 0
    Do a test using 0x5533CCAA.
    Scan tests: 5, skipped: 0, failed: 0
    Do a test using 0xAACC3355.
    Scan tests: 6, skipped: 0, failed: 0
    All of the values were scanned correctly.

    The JTAG IR Integrity scan-test has succeeded.

    -----[Perform the Integrity scan-test on the JTAG DR]------------------------

    This test will use blocks of 64 32-bit words.
    This test will be applied just once.

    Do a test using 0xFFFFFFFF.
    Scan tests: 1, skipped: 0, failed: 0
    Do a test using 0x00000000.
    Scan tests: 2, skipped: 0, failed: 0
    Do a test using 0xFE03E0E2.
    Scan tests: 3, skipped: 0, failed: 0
    Do a test using 0x01FC1F1D.
    Scan tests: 4, skipped: 0, failed: 0
    Do a test using 0x5533CCAA.
    Scan tests: 5, skipped: 0, failed: 0
    Do a test using 0xAACC3355.
    Scan tests: 6, skipped: 0, failed: 0
    All of the values were scanned correctly.

    The JTAG DR Integrity scan-test has succeeded.

    [End: Texas Instruments XDS100v1 USB Debug Probe]

  • Thanks for doing this, the response back from the "Test Connection" looks good.  Can we try to build/load an example project to the target from C2000Ware?  Let me know if you don't have this installed and I can help walk you through what I'd like to try.

    Since the device looks to have a connection to the emulator you might try changing the boot mode to something other than boot to flash(the default).  If the Code Security Module is in use it will block emulation access, changing to something like boot to XINTF would help stall this out.

    Best,

    Matthew

  • Hello,

    i have tried to load an example project from C2000Ware but i am getting the same problem,

    Could you please tell me how to change the boot mode to XINTF?

    Thank  you,

  • and please note that i got this problem while running an external source (an SD card) using SPI_A

  • Firas,

    Sorry for the long time between replies; per the above do you mean that you are bootloading from SPIA and you can no longer connect?

    To change the boot mode you can refer to the boot mode pins/table 

    Best,

    Matthew