External input interrupt application [EXTI for STM32]
June 14, 2020
This is an example of an interrupt application with an external input signal. The following is an explanation of the unique part of external interrupts. Setting Spec.：Input ：PC13 Floating input Output：PA5 Push-pull output+500Ω+LED The point When using external interrupts, the clock must be supplied to AFIO in addition to GPIO.