[SOLVED] STM32 report "Connecting to CPU via connect under reset failed."

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

  • [SOLVED] STM32 report "Connecting to CPU via connect under reset failed."

    Hi

    I am using J-link Ultra with GDB Server and STM32 Controller
    I am debugging using SWD connector

    Every thing was working fine, but my cable was broken and I re-soldered it.
    After That I keep Getting this Error "Connecting to CPU via connect under reset failed."
    I am using a 6 pin header for Debugging
    The Signals are as follow SWDIO, SWCLK ,TRACESWO in addition to 3.3V and GND

    Here's the log for the connection

    Source Code

    1. ""SEGGER J-Link GDB Server V6.00g Command Line Version
    3. JLinkARM.dll V6.00g (DLL compiled Aug 17 2016 13:20:32)
    5. -----GDB Server start settings-----
    6. GDBInit file: none
    7. GDB Server Listening port: 2331
    8. SWO raw output listening port: 2332
    9. Terminal I/O port: 2333
    10. Accept remote connection: localhost only
    11. Generate logfile: off
    12. Verify download: on
    13. Init regs on start: on
    14. Silent mode: off
    15. Single run mode: on
    16. Target connection timeout: 0 ms
    17. ------J-Link related settings------
    18. J-Link Host interface: USB
    19. J-Link script: none
    20. J-Link settings file: none
    21. ------Target related settings------
    22. Target device: STM32F407VE
    23. Target interface: SWD
    24. Target interface speed: 100kHz
    25. Target endian: little
    27. Connecting to J-Link...
    28. J-Link is connected.
    29. Firmware: J-Link Ultra Rev.1 compiled Dec 3 2013 14:27:53
    30. Hardware: V1.00
    31. S/N: 501200197
    32. Feature(s): RDI, FlashBP, FlashDL, JFlash, GDB
    33. Checking target voltage...
    34. Target voltage: 3.27 V
    35. Listening on TCP/IP port 2331
    36. Connecting to target...ERROR: STM32: Connecting to CPU via connect under reset failed.
    37. ERROR: STM32: Connecting to CPU via connect under reset failed.
    38. ERROR: Could not connect to target.
    39. Target connection failed. GDBServer will be closed...Restoring target state and closing J-Link connection...
    40. Shutting down...
    41. ""
    Display All


    How can I solve this problem

    Best Regards
    Hossam Alzomor