Debugging Error with ST Link /V2 With STM32WLE5JC custom board

initiativewater · ‎2025-05-21

We are using stm32 mcu STM32WLE5JC custom board
below connection we are following for SWD Debugger

ISP1 Pin Connected To Function

1	3.3V	VDD (VAPP)
2	PA13	SWDIO (Data I/O)
3	PA14	SWCLK (Clock)
4	NRST	Reset (optional but recommended)
5	GND	Ground

but while debugging we are getting below error please suggest solution.

IDE Configuration:

STTwo-32 · ‎2025-05-21

Hello @initiativewater and welcome to the ST Community.

Could you please send a picture of your ST-LINK V2.

Best Regards.

STTwo-32

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Peter BENSCH · ‎2025-05-21

Additionally: in the window with the debugger options, you ticked S/N, but the line does not show a S/N. Did you click Scan on the right?

Regards
/Peter

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