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STM32 NUCELO-WBA55CG, No device found on target.

BadEngineer
Associate II

‎2024-07-08 03:38 AM - edited ‎2024-07-08 03:49 AM

My STM32 WBA55CG was working absolutely fine yesterday and today it seems that, my system refuses to find it. I have checked that i can see it from my device manager but when trying to flash it. It doesn't seem to do anything.

When i remove the JP2 jumper, it seems to turn on LD4. I have not removed the jumpers at all. They are as they came to me in the box. 

 

I am able to see it on the STLink Upgrade utility which is in the cube ide. 
Could it be because the ST-link chip is working fine but something is wrong with the microprocessor? 

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STTwo-32
ST Employee

‎2024-07-08 05:45 AM

Hello @BadEngineer and welcome to the ST Community .

If you remove the JP2, you will not be able to program or debug any code. If not, can you please try to upgrade the St-link firmware using CubeMX. Can you also ensure that you are using a data cable and not just a charging one. 

Also, please ensure that the Jumpers are set as mentioned on the STM32WBA Nucleo-64 board (MB1863) - User manual

Best regards. 

STTwo-32

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BadEngineer
Associate II
In response to STTwo-32

‎2024-07-08 07:01 AM

@STTwo-32  Thank you for your reply. 
I can confirm that i am using a micro usb cable that has the data lines (without the data lines it doesn't detect the unit at all). 
I can confirm my JP2 and JP1 jumpers are on. I have attached some additional pictures to this. 

I am using cube ide for this project, you can see through that, i am able to program up the stlink chip 

When it comes to flashing it says no device found on target. i can confirm that my reset configuration is "Connect under reset" 

BadEngineer_1-1720447203631.png

 

BadEngineer_0-1720447175803.png

 

Media (1).jpg

Media (2).jpg

  

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STTwo-32
ST Employee
In response to BadEngineer

‎2024-07-08 07:07 AM

Can you try to program it using Cube Programmer.

Best Regards.

STTwo-32

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BadEngineer
Associate II
In response to STTwo-32

‎2024-07-08 07:12 AM

@STTwo-32  Ty for your suggestion. 
I have tried using stm32cube programmer but it can't seem to detect it at all (below is an image). I've tried UART, st-link and USB. None of them seem to detect it. 

My device manager does detect it as shown from the image. 

BadEngineer_1-1720447935144.png

 



BadEngineer_0-1720447878744.png

 

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STTwo-32
ST Employee
In response to BadEngineer

‎2024-07-08 08:21 AM

I think the MCU is broken in this case. I suggest you try using another Board or change the MCU. 

Best Regards.

STTwo-32

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BadEngineer
Associate II
In response to STTwo-32

‎2024-07-08 08:54 AM

@STTwo-32 
Unfortunately I don't have another MCU that i can use or another board. 
Is there any way to verify that the MCU is broken? I know it has all the symptoms of broken MCU but is there anything i can try. 

Similar to this article: link ?

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STTwo-32
ST Employee
In response to BadEngineer

‎2024-08-06 07:00 AM

Hello @BadEngineer 

Could you please try to connect it to Cube Programmer throw ST-LINK and not UART mode (using a Data cable and not a charging one).

Best Regards.

STTow-32

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