NUCLEO-N657X0-Q: failed to start GDB server

[cersoy]

I am trying to start a debugger session to my new NUCLEO-N657X0-Q and getting the following error:

STMicroelectronics ST-LINK GDB server. Version 7.9.0
Copyright (c) 2024, 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.

 I am using the latest version of STM32CubeIDE (1.17.0)

The STM32CubeProgrammer (v2.18.0) is also unable to program any binaries on the board.  After changing the Reset Mode to "Hardware reset" I am able to connect to the board, but immediately get the error message: 

15:09:28:207 : UR connection mode is defined with the HWrst reset mode
15:09:28:364 : ST-LINK SN : 002F00453433511830343835
15:09:28:365 : ST-LINK FW : V3J15M7
15:09:28:365 : Board : NUCLEO-N657X0-Q
15:09:28:365 : Voltage : 3.27V
15:09:28:365 : SWD freq : 8000 KHz
15:09:28:365 : Connect mode: Normal
15:09:28:365 : Reset mode : Hardware reset
15:09:28:365 : Device ID : 0x486
15:09:28:365 : Revision ID : Rev A
15:09:28:365 : reset ap 1 
15:09:28:365 : Reading data...
15:09:28:365 : r ap 1 @0x00000000 0x00000004 bytes Data 0x00000018
15:09:28:365 : r ap 1 @0x00000000 0x00000004 bytes Data 0x00000018
15:09:28:365 : Database: Config 0 is active.
15:09:28:461 : UPLOADING ...
15:09:28:461 : Size : 1024 Bytes
15:09:28:461 : Address : 0x8000000
15:09:28:462 : Read progress:
15:09:28:462 : Reading data...
15:09:28:462 : r ap 1 @0x08000000 0x00000400 bytes Data 0x00000018
15:09:28:541 : r ap 1 @0x08000000 0x00000400 bytes Data 0x00000011
15:09:28:541 : Error: Data read failed

 Unfortunately link to user manual UM3417, which is https://www.st.com/resource/en/user_manual/dm01122391.pdf (per STM32 Nucleo-144 boards data brief) is currently unavailable.  

I don't understand what I am doing wrong from the error messages, and can't access the user manual.  I would appreciate if someone can shed light on the issue I am seeing.

[Amel NASRI]

Hi @cersoy ,

Try to perform an STLink upgrade from STM32CubeProgrammer.

Regarding the user manual, it should be this one: Data brief - NUCLEO‑xxxxLx/xxxxXx/xxxxZx(-P/Q).

Where do you find the wrong link? Please let me know to fix it.

-Amel

[cersoy]

Thank you Amel for your prompt response.  On page 6 of the document you pointed out, there is a link to the user manual of this specific board:

link to UM3417 does not work.

I upgraded the STlink from the STprogrammer per your recommendation.  Below are the snippets:

But still no success accessing the board:

Are there any diagnostics I can collect to troubleshoot the problem.  Thanks again for your help.

[Amel NASRI]

What about a full erase of the chip? does it work?

[cersoy]

Below is what I am getting:

09:50:31:976 : Waiting for device n:1...
09:50:32:043 : ST-LINK SN : 002F00453433511830343835
09:50:32:044 : ST-LINK FW : V3J15M7
09:50:32:045 : Board : NUCLEO-N657X0-Q
09:50:32:046 : Voltage : 3.27V
09:50:32:049 : SWD freq : 8000 KHz
09:50:32:049 : Connect mode: Normal
09:50:32:049 : Reset mode : Hardware reset
09:50:32:052 : Device ID : 0x486
09:50:32:052 : Revision ID : Rev A
09:50:32:062 : reset ap 1 
09:50:32:079 : Reading data...
09:50:32:082 : r ap 1 @0x00000000 0x00000004 bytes Data 0x00000018
09:50:32:183 : r ap 1 @0x00000000 0x00000004 bytes Data 0x00000018
09:50:32:184 : Database: Config 0 is active.
09:50:32:235 : MASS ERASE ... 
09:50:32:235 : Mass erase operation failed.Please verify flash protection
09:50:32:235 : Please disconnect device n:1 and connect the next...

 without access to the user manual I don't know: if there is flash protection or not, and how to resolve it. Please advise.