STM32WB55RG Error in initializing ST-LINK device. Reason: No device found on target

[LZure]

I have two P-Nucleo-WB boards and both of them end up in this state.

CubeIDE trying to load binary:

CubeProgrammer:

 

Found several topic that looks the same however nothing helped. Has anyone solved this problem?

[MM..1]

Configure connect mode to Under reset

[LZure]

I have tried to connect it "Under reset mode" with pressed reset button. Result is the same:

[MM..1]

Seems power on your board is unstable. Check it ... Under reset is mode not presed but

[LZure]

Power comes from USB port and it's the same on other ports. Connecting under reset results in this same error. Is there any other method I could try to bring back my stm?

[LZure]

I have managed to run board in bootloader mode and successfully connect with CubeProgrammer through UART. I was able to load bin file. Unfortunately ST-link still does not work and I receive all the time this same error: "No device found". Any thoughts what else I can do?

[Remy ISSALYS]

Hello,

Your power supply seems to be very low, maybe you can try to change your usb cable.

Best Regards

[LZure]

I have checked voltage on my both boards and it seems like both of them got this same issue with voltage:

First board:

5V pin measured 2.5 V and 3V3 pin measured 2.3 V

Second board:

5V pin measured 5 V and 3V3 pin measured ~0 V

Strange is that I have taken precautions after first board failed and only think I did with board was plug/unplug st-link usb cable.

[Remy ISSALYS]

Hello,

In order to use ST LINK port, ensure that JP1 is on USB STL position.

Best Regards

[LZure]

Hi Remy,

Jumpers are ok. I had right voltage before. It seems like I have bricked somehow two this same boards with my program. With first I had doubts if I have break it with some static charge but with second I was rather cautious doing stuff and yet, it still got broken. Do you think it is recoverable?

Best regards