Interrupts on STM32 MCUs come in two flavors: internal and external. Both types of interrupts use the same core peripheral in the Cortex-M core: the Nested Vectored Interrupt Controller, or NVIC.

An example on how to setup the ZephyrOS Device tree overlay PWM on a bluepill board. - mxrtos/STM32_ZephyrOS_PWM_Example ...

Playback Functions: startPlayback () initializes and starts TIM1 for PWM and TIM2 for interrupts. stopPlayback () stops both timers and sets the PWM pin to low. This setup ensures that TIM2 generates ...