Resolved! CubeMX V4.25.0 Bug. CubeMX won't generate EXTI support code.
Posted on May 07, 2018 at 19:27Create a new project for a DiscoveryF4 or a Nucleo-144 767. Both of these boards has a push button on it.The disco's button is set for external event mode, set it for External interrupt mode in the GPIO configuration t...