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STM32WB5MMGH6TR unable to connect, debug and dump code

abhi4
Associate

‎2025-04-03 6:25 AM

We have a STM32WB module soldered on custom board. Initially everything was working fine, we were able to dump code using UART bootloader and SWD. Suddenly, it stopped connecting using STM32CubeIDE and it is only connecting using STM32CubeProgrammer(only in Hot Plug Mode). Now we are not able to erase and program, all the core registers have invalid values. How to solve it?

 

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abhi4_2-1743686814541.png

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test_WB.log
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1 REPLY 1
STTwo-32
ST Employee

‎2025-05-05 5:36 AM

Hello @abhi4 

For the last code you have programmed, have you activated the Low power modes and disabled the debug. If so, it may cause some connection issues. You need to connect throw UART and mass erase before reconnecting.

Best Regards.

STTwo-32

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