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Graduate II
July 3, 2020
Question

Debugger connection don't work with ST-Link and STM32CubeIDE V.1.3.1

  • July 3, 2020
  • 1 reply
  • 663 views

I am working with Windows10, STM32CubeIDE V.1.3.1 and ST-Link on board of NUCLEO-L412KB. Today i connected the board first time and made an update after being asked to do so. After reconnecting the board and successfully update of ST-Link the debugger lost it's connection after starting debugging process.

STMicroelectronics ST-LINK GDB server. Version 5.5.0

Copyright (c) 2019, STMicroelectronics. All rights reserved.

Starting server with the following options:

    Persistent Mode      : Disabled

    Logging Level       : 1

    Listen Port Number     : 61234

    Status Refresh Delay    : 15s

    Verbose Mode        : Disabled

    SWD Debug         : Enabled

    InitWhile         : Enabled

Waiting for debugger connection...

Debugger connected

Debugger connection lost.

Shutting down...

After that, the Debugger LED on NUCLEO board remains red until i restart my PC. After restart, the LED lights up green, but after starting debugging process all is the same behavior like before.

Please help!

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    1 reply

    Visitor II
    July 10, 2020

    Something similar did happen to me .

    I do pinpoint ,after it does the St-link upgrade cause that problem, in the future I will not do the upgrade until STM fix bugs.

    Anyway the way how I did overcome this problem; after following instructions from another St community member.

    Delete all projects currently on your workbench, and start a fresh project from scratch .

    And its working on Windows 7,8 and 10

    Hopefully fix and good luck

    Jorge