STM32 Debugging not available

[watao]

I am using STM32G031J6M6 and using NRST pin as GPIO.

I have been unable to connect to STM32CubeIDE, CubeProgrammer and ST-Link Utility since then, probably because I executed __WFI() in the program.

CubeProgrammer error code

STM32 target not found! If your product has debug authentication built in, please use debug authentication to run detection.”

I did a lot of research and could not connect to either Software/HardwareReset.

Please share your wisdom on how to connect and debug.

[Uwe Bonnes]

Did you try "Connect under reset"? I assume that G0 only remaps NRST after it has booted...

[Andrew Neil]

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@watao wrote:

Please share your wisdom on how to connect and debug.

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FWIW, my wisdom says that repurposing NRST is highly un-wise!

[watao]

Thanks I already tried that but still no connection...

[watao]

I regret that I should not have tinkered with the NRST during debugging

[Uwe Bonnes]

Sorry, Connect under reset will not work with NRST remapped without reboot. Can you unpower the board, pull NRST low, repower and than connect under reset and remove the NRST pull?

[Andrew Neil]

An older & wiser engineer once said to me:

"if you don't have enough resources to dedicate 10% to debug/diagnostics,
then you don't have enough resources"

in that context, "resources" includes pins.

#DebugResources #Diagnostics

[watao]

I tried but still could not connect.
I have a Nucleo ST-Link, so I tried connecting to another STM, which was recognized with no problem...

[Andrew Neil]

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@watao wrote:

 I tried connecting to another STM, which was recognized with no problem...

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Was that STM running the same code?

[watao]

No, I tested the connection with CubeProgrammer and ST_LINK Utility, so I did not run the code.