Im trying to flash first program into STM32U575ZIT. For some reason I m getting the next error: stm32 failed to start GDB server error in initializing st-link device REASON:no device found . I updated the ST-LINK and still not working.

[why 3.3v when u can 5000V]

tried to update the ST-LINK with the cubeIDE after that with the ST-LINK TOOL and at the end I tried to install the latest driver with device manager .

the STM32U575ZIT is pack fresh .

(nucleo)

[TDK]

Is this a nucleo board?

Does STM32CubeProgrammer connect?

[why 3.3v when u can 5000V]

yes, and yes....

[TDK]

The debug tools are not super consistent. If STM32CubeProgrammer works, your hardware connection is fine.

Power cycle the board and try again. Try rebooting your system. Yes I know it's annoying.

There may be something STM32U5 specific here, but I also see odd behavior like this with other families occasionally in STM32CubeIDE.

[why 3.3v when u can 5000V]

yes and yes

[MM..1]

Show schematics how you connect your ST-LINK

[why 3.3v when u can 5000V]

A picture of how I connected it

[why 3.3v when u can 5000V]

for some reason led 1 to 3 are blinking in order from 1 to 3

[MM..1]

Version CubeIDE ? GDBserver version? Try switch to othet debuger in IDE config, setup support for debug low power modes , connect under reset ...

[why 3.3v when u can 5000V]

Version CubeIDE : 1.8

GDBserver version: actually don't know

even if some configuration work it still succeed only after 2-3 tries if work at all .

[Adams.Peter]

I'm having the same problem with the (ST-LINK GDB server) connection, when I switch to 'ST-LINK (OpenOCD)' I can debug the application.

When I use the (ST-LINK GDB server) I get the following message:

-----------

STMicroelectronics ST-LINK GDB server. Version 6.0.0

Copyright (c) 2021, 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

Target unknown error 32

Error in initializing ST-LINK device.

Reason: Unknown. Please check power and cabling to target.

---------------

[AMusn.1]

I have the same problem with Nucleo-WL55JC1 -- :( ;(... first I try with the latest version of cubeIde and I tried with older version.. got the same error.. Please Help.. :).. it's been a year is there any solution to this?

[MM..1]

WL is ... read Error when I try to program my custom board

[AMusn.1]

In my case, I get it to run by setting --> menu Run.Debug Configurations. Debugger:

1) connect to remote GDB Server Port Number change to not 61234 --> 61238, (while still chose Autostart local GDB server, Connect to remote GDB Server is not chosen, just change the number

2) Reset Behaviour: choose Hadware reset

Then it runs smoothly every time.. :) :), I really don't know what is the best/correct answer, just sharing my experience...