HAL and GPIO EXTI

[mccabehm]

If I register a callback function for GPIO EXTI and I have EXTI on multiple ports for the same pin (e.g. PA0 and PB0) how does the callback distinguish between the ports when the event triggers?

[TDK · Accepted solution]

You can't have EXTI enabled on the same pin number of multiple ports. It's a hardware limitation.