Unable to enable the EXTI Line 1 Interrupt for NUCLEO-WL55JC1

[Embedded_Engi_2]

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!

[STTwo-32]

Hello @Embedded_Engi_2 

To be able to set this interrupt in a dual core project, you should set the Pin Context to one of the cortex available in this product (do not left it free). This option is not yet available on CubeMX. I've submitted an internal ticket to add it on the future (internal ticket number 200345). Until that, you should do it manually after generating a project.

Best Regards.

STTwo-32