Error during debugging in NUCLEO-H743ZI board

[Ramachandran1992]

Hello,

I am using the STM32H743ZI Nucleo board.

Suddenly The Red LED (Over current LED) is glowing in my Microcontroller. I have checked all the connections properly, and there is no short circuit.

Because of this I can't able to load the Program in it It is showing a Target Not Found Error.

" STMicroelectronics ST-LINK GDB server. Version 7.7.0

Copyright (c) 2024, STMicroelectronics. All rights reserved.

Starting server with the following options:

Persistent Mode: Disabled

Logging Level: 1

Listen Port Number: 61235

Status Refresh Delay: 15s

Verbose Mode: Disabled

SWD Debug: Enabled

InitWhile: Enabled

Target no device found

Error in initializing ST-LINK device.

Reason: No device found on target."

When I Checked the Data Sheet. it is written that if the board power consumption in the USB Exceeds 500 mA Then the LED will glow it seems.

I have been powering with my laptop till this morning it was working fine. May I know what is the cause?

Thank you

Regards

Ramachandran S

[Imen.D]

Hello @Ramachandran1992 ,

Maybe you have a wrong power mode setting. Did you change SMPS/LDO settings?

Check with this article the steps on how to recover from such situation : 

https://community.st.com/t5/stm32-mcus/how-to-unbrick-an-stm32h7-after-setting-the-wrong-power-mode/ta-p/49691

[Ramachandran1992]

hi Imen,

I try all method you suggested, but still now I cannot recover my board to find the target. I don't know what has happened to my board.
thank you

regards

Ramachandran S