exti.h

[Stub] support.

Library Documentation

External interrupt control prototypes and defines.

Defines
EXTI_BASE

EXTI register map base pointer.

Enums
exti_trigger_mode enum

External interrupt trigger mode.

Values:

  • EXTI_RISING -

    Trigger on the rising edge.

  • EXTI_FALLING -

    Trigger on the falling edge.

  • EXTI_RISING_FALLING -

    Trigger on both the rising and falling edges.

Functions
void exti_attach_interrupt(afio_exti_num num, afio_exti_port port, voidFuncPtr handler, exti_trigger_mode mode)

Register a handler to run upon external interrupt.

This function assumes that the interrupt request corresponding to the given external interrupt is masked.

Parameters:
  • num -

    External interrupt line number.

  • port -

    Port to use as source input for external interrupt.

  • handler -

    Function handler to execute when interrupt is triggered.

  • mode -

    Type of transition to trigger on, one of: EXTI_RISING, EXTI_FALLING, EXTI_RISING_FALLING.

See:

exti_num

exti_port

exti_trigger_mode

void exti_detach_interrupt(afio_exti_num num)

Unregister an external interrupt handler.

Parameters:
  • num -

    Number of the external interrupt line to disable.

See:

exti_num

class exti_reg_map

EXTI register map type.

Public Members
__io uint32 IMR

Interrupt mask register.

__io uint32 EMR

Event mask register.

__io uint32 RTSR

Rising trigger selection register.

__io uint32 FTSR

Falling trigger selection register.

__io uint32 SWIER

Software interrupt event register.

__io uint32 PR

Pending register.