[ABANDONED] Error: Could not find core in Coresight setup - J-Link Lite/TMPM369FDXBG

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  • [ABANDONED] Error: Could not find core in Coresight setup - J-Link Lite/TMPM369FDXBG

    I've got a Toshiba BMSKTOPASM369BT551 dev kit with an TMPM369FDXBG ARM Cortex M3 MCU + a JLink Lite.

    Before, I've managed to compile a simple blink app and even debug it in Ozone (I also have J-Link Plus)
    Now, and I'm not aware of any changes to my hardware, I get the error below.

    What does it mean? What might be broken and or anything I can try to fix it?

    Thanks!
    Matthias

    Debug.Start();
    J-Link: Device "TMPM369FDXBG" selected.
    J-Link: Found SW-DP with ID 0x2BA01477
    J-Link: Scanning AP map to find all available APs
    J-Link: AP[0]: Stopped AP scan as end of AP map seems to be reached
    J-Link: Iterating through AP map to find AHB-AP to use
    J-Link: Found SW-DP with ID 0x2BA01477
    J-Link: Scanning AP map to find all available APs
    J-Link: AP[1]: Stopped AP scan as end of AP map has been reached
    J-Link: AP[0]: AHB-AP (IDR: 0x24770011)
    J-Link: Iterating through AP map to find AHB-AP to use
    J-Link: AP[0]: Core found
    J-Link: AP[0]: AHB-AP ROM base: 0xE00FF000
    J-Link: CPUID register: 0x412FC231. Implementer code: 0x41 (ARM)
    J-Link: Found Cortex-M3 r2p1, Little endian.
    J-Link: FPUnit: 0 code (BP) slots and 0 literal slots
    J-Link: CoreSight components:
    J-Link: ROMTbl[0] @ E00FF000
    J-Link: Could not find core in Coresight setup
    J-Link: connected to target device
    J-Link: connection to target device lost.


    Similar, in JLinkExe, I get this:

    $ JLinkExe
    SEGGER J-Link Commander V6.30b (Compiled Feb 2 2018 18:41:11)
    DLL version V6.30b, compiled Feb 2 2018 18:41:01

    Connecting to J-Link via USB...O.K.
    Firmware: J-Link Lite-Cortex-M V8 compiled Sep 15 2016 12:05:01
    Hardware version: V8.00
    S/N: 528001296
    License(s): GDB
    VTref = 3.293V


    Type "connect" to establish a target connection, '?' for help
    J-Link>connect
    Please specify device / core. <Default>: TMPM369FDXBG
    Type '?' for selection dialog
    Device>
    Please specify target interface:
    J) JTAG (Default)
    S) SWD
    TIF>S
    Specify target interface speed [kHz]. <Default>: 4000 kHz
    Speed>
    Device "TMPM369FDXBG" selected.


    Connecting to target via SWD
    Found SW-DP with ID 0x2BA01477
    Scanning AP map to find all available APs
    AP[1]: Stopped AP scan as end of AP map has been reached
    AP[0]: AHB-AP (IDR: 0x24770011)
    Iterating through AP map to find AHB-AP to use
    AP[0]: Skipped. Could not read CPUID register
    Found SW-DP with ID 0x2BA01477
    Scanning AP map to find all available APs
    AP[1]: Stopped AP scan as end of AP map has been reached
    AP[0]: AHB-AP (IDR: 0x24770011)
    Iterating through AP map to find AHB-AP to use
    AP[0]: Core found
    AP[0]: AHB-AP ROM base: 0xE00FF000

    ****** Error: Could not find core in Coresight setup
    Found SW-DP with ID 0x2BA01477
    Scanning AP map to find all available APs
    AP[0]: Stopped AP scan as end of AP map seems to be reached
    Iterating through AP map to find AHB-AP to use
    Found SW-DP with ID 0x2BA01477
    Scanning AP map to find all available APs
    AP[1]: Stopped AP scan as end of AP map has been reached
    AP[0]: AHB-AP (IDR: 0x24770011)
    Iterating through AP map to find AHB-AP to use
    AP[0]: Core found
    AP[0]: AHB-AP ROM base: 0xE00FF000
    CPUID register: 0x412FC231. Implementer code: 0x41 (ARM)
    Found Cortex-M3 r2p1, Little endian.
    FPUnit: 0 code (BP) slots and 0 literal slots
    CoreSight components:
    ROMTbl[0] @ E00FF000
    Cannot connect to target.
    J-Link>
  • Hello,

    Thank you for your inquiry.
    Such an issue is not known to us.
    For reproduction we used a J-Link Plus, J-Link software V6.30b and eval board BMSKTOPASM369 v1.
    Attached is the successful connect with J-Link Commander.

    So everything is working as expected. You write you also have a J-Link Plus, could you try that one instead.
    Does that work?

    Best regards,
    Nino
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