2025-07-09 5:29 AM
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
Solved! Go to Solution.
2025-07-09 5:48 AM
Found that it was never the board. It was a simple problem in the script.
2025-07-09 5:45 AM - edited 2025-07-09 5:45 AM
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
2025-07-09 5:48 AM
Found that it was never the board. It was a simple problem in the script.