Hello Community,
I am using the STM32WL55JC16 microcontroller. When I try to set the PA1 pin as EXTI1, I am unable to enable its interrupt in NVIC1. A popup message appears stating: "The corresponding GPIO pin is left as 'FREE' and not used by any middleware or pack." I have updated to the latest version of the IDE, but I cannot find the Pin Reservation button.
Could anyone provide guidance on how to resolve this issue?
Thank you for your help!
