How many GPIO can I configure to be external interrupts on the Nucleo-144-F767Zi using the STMCubeMX

[jusroc777]

Hello

I am new to STMCubeMX and am no expert at using the STM32 Nucleo boards.

However I am keen to learn.

I heard that the STMCubeMX software is a great place to start as it has a great GUI for configuring Pins on the MCU.

I recently tried this app, as an experiment, trying to set up the MCU to have as many GPIO external Interrupts as possible.

But found that I was limited to configure only a small amount of the PINS as Interrupts, and if i tried to set up any more, a conflict of GPIO_EXTl address would occur, which results in one of the PINS that has the same name automatically changing to its former designation.

Does this make any sense to anyone.

Would appreciate any help. Thanks

[Tesla DeLorean]

16

For GPIO_Pin_[0..15] on one of GPIO[A..K]

[TDK · Accepted solution]

Probably could have kept these in the same discussion:

https://community.st.com/s/question/0D53W00001PpYZuSAN/prototyping-evaluation-discovery-board-that-has-the-most-capacity-for-gpioexti-external-interrupts

[jusroc777]

Thank you for your answers