Regarding the Mounting of R42 on the STM32WBA55G-DK1

TYAMA.2 · ‎2025-09-01

Hello,

I have a question regarding the STM32WBA55G-DK1 board I have on hand.
On my board, R42 is not populated. Could you please confirm whether R42 is not mounted by default?

R42 is a 0 Ω resistor located on the control line of the general-purpose LED (LD3), and according to the schematic it appears to be mounted.

I would appreciate it if someone could clarify this.

Thank you in advance.

STTwo-32 · ‎2025-09-02

Hello @TYAMA.2

According to the MB1802, the R42 is not fitted on the original design:

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

TYAMA.2 · ‎2025-09-02

Thank you for your reply.
On the MB1802 board I obtained in the past, R42 was populated.

In that case, from which port is LD3 controlled?
If you could let m

e know, I would greatly appreciate it.