[ANSWERED\SOLVED] Cortex-M3 "Core locked-up"

This site uses cookies. By continuing to browse this site, you are agreeing to our Cookie Policy.

  • [ANSWERED\SOLVED] Cortex-M3 "Core locked-up"

    Hi,

    I'm doing my first steps with the J-Link (Edu) and Cortex-M3 (Olimex STM32-H103, with an STM32F103RB onboard).

    After having many, many, problems (which were all caused by myself), I'm stuck at this error message, given by Keil µVision4.

    I wonder what "Core is locked-up" means. I've already tried the STM32 Unlock utility, which gives nothing but OKs back to me.

    Yours,
    CowZ

    edit: problem solved by mikrocontroller.net / A.K. . for all of you, who experience same problem: erase device via bootloader, than that "core is locked-up" message is gone. but i still wonder, what went wrong the first time...

    Brainfuck Source Code

    1. Load "[...]\\Obj\\Gpio.AXF"
    2. JLink info:
    3. -----------
    4. DLL: V4.10i, compiled Jan 25 2010 14:43:57
    5. Firmware: J-Link ARM V8 compiled Dec 1 2009 11:42:48
    6. Hardware: V8.00
    7. S/N : 268000075
    8. OEM : SEGGER-EDU
    9. Feature(s) : FlashBP
    10. ---
    11. * JLink Info: TotalIRLen = 9, IRPrint = 0x0011
    12. * JLink Info: Found Cortex-M3 r1p1, Little endian.
    13. * JLink Info: TPIU fitted.
    14. * JLink Info: FPUnit: 6 code (BP) slots and 2 literal slots
    15. * JLink Info: TotalIRLen = 9, IRPrint = 0x0011
    16. * JLink Info: Found Cortex-M3 r1p1, Little endian.
    17. * JLink Info: TPIU fitted.
    18. * JLink Info: FPUnit: 6 code (BP) slots and 2 literal slots
    20. Target info:
    21. ------------
    22. Device: STM32F103VB
    23. VTarget = 3.293V
    24. State of Pins:
    25. TCK: 1, TDI: 0, TDO: 1, TMS: 0, TRES: 1, TRST: 1
    26. * JLink Info: TotalIRLen = 9, IRPrint = 0x0011
    27. * JLink Info: Found Cortex-M3 r1p1, Little endian.
    28. * JLink Info: TPIU fitted.
    29. * JLink Info: FPUnit: 6 code (BP) slots and 2 literal slots
    30. Hardware-Breakpoints: 6
    31. Software-Breakpoints: 2048
    32. Watchpoints: 4
    33. JTAG speed: 3000 kHz
    34. ---
    35. * JLink Info: TotalIRLen = 9, IRPrint = 0x0011
    36. * JLink Info: Found Cortex-M3 r1p1, Little endian.
    37. * JLink Info: TPIU fitted.
    38. * JLink Info: FPUnit: 6 code (BP) slots and 2 literal slots
    39. * JLink Info: Core is locked-up!
    40. * JLink Info: CPU halted
    41. Programming Failed!
    Display All

    The post was edited 2 times, last by CowZ ().

  • Hi CowZ,

    >>than that "core is locked-up" message is gone. but i still wonder, what went wrong the first time...
    This can be caused by "bad software" which accidentially confuses the
    core (e.g. by selecting an unsupported core speed when configuring the PLL or similar).


    Best regards
    Alex
    Please read the forum rules before posting.

    Keep in mind, this is *not* a support forum.
    Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
    Should you be entitled to support you can contact us via our support system: segger.com/ticket/
    Or you can contact us via e-mail.