SB configuration on nucleo-144

[Kewin_J]

Hi,

I'm trying to toggle a pin on my STM32H723 (LQFP144) using GPIO. According to the Nucleo-144 board datasheet, PE12, PE13, and PE14 appear to be connected to both CN10 (Zio) and CN12 (Morpho).

However, when I toggle the pins to light up an LED, the signal only appears on CN12 — not on CN10.

I’ve checked the documentation but couldn’t find any SB (solder bridge) configuration that might be affecting this behavior. Am I missing something?

Best regards,
Kewin

[Mike_ST]

Hello,

Yes, there no SB config that might affect that. PE12 on CN12 is same on CN10.

Problem might be 

- Wrong led polarity

- Probing wrong pad

- Bad connection

- Cut trace

[Kewin_J · Accepted solution]

Found that it was never the board. It was a simple problem in the script.