Using EXTI on different port with the same pin number

[migmel]

Hello, is there any way to use EXTI simultaneously in different ports with the same pin number?

Examples for MCU STM32L071CB:

Using PA4 and PB4, or

Using PA10 and PB10, or

Using PA6 and PB6, and so on

[TDK · Accepted solution]

No, there is not. For a given pin number, only one port can have an active EXTI at a time.

This is a hardware limitation, see SYSCFG_EXTICRx for the underlying hardware limitation.

[migmel]

Thank you for your quick response.

Regards,

Miguel