ExternalInterrupt Class Reference

#include <externalinterrupt.h>

Inheritance diagram for ExternalInterrupt:

Classes
class	InterruptHandler

Public Types
enum	TriggerMode { LOW_LEVEL, ANY_CHANGE, FALLING_EDGE, RISING_EDGE }

Public Member Functions
virtual void	setTriggerMode (TriggerMode mode)=0
virtual void	enableInterrupt (bool state)=0
virtual void	setInterruptHandler (InterruptHandler *handler)=0

Detailed Description

Class to manage the external interrupt sources provided by the AVR (INT0, INT1, etc.).

Note

Managing the interrupt sources is independent from controlling the associated GPIO pin. To control the actual pin, a separate instance of GpioPortPin is needed. It can be configured as input to react on external circuitry, or as output to trigger interrupts from software.

Member Enumeration Documentation

TriggerMode

enum ExternalInterrupt::TriggerMode

Trigger modes.

Enumerator
LOW_LEVEL	Pin is held at low level.
ANY_CHANGE	Pin changes its level.
FALLING_EDGE	Pin changes from high to low.
RISING_EDGE	Pin changes from low to high.

Member Function Documentation

enableInterrupt()

virtual void ExternalInterrupt::enableInterrupt ( bool  state )

pure virtual

Enables or disabled the interrupt.

Parameters

state

True to enable interrupt, false to disable.

Implemented in Int2, Int0, and Int1.

setInterruptHandler()

virtual void ExternalInterrupt::setInterruptHandler ( InterruptHandler *  handler )

pure virtual

Sets callback for interrupts.

Parameters

handler

Pointer to class implementing the interrupt handler interface.

Implemented in Int2, Int0, and Int1.

setTriggerMode()

virtual void ExternalInterrupt::setTriggerMode ( TriggerMode  mode )

pure virtual

Sets the trigger mode.

Parameters

mode	Trigger mode to set.

Implemented in Int2, Int0, and Int1.