Overview

Provides input, output, and interrupt support for an MCUXpresso GPIO pin.

Interrupts are provided by IRQ "A" on the GPIO module.

Class-specific behaviors:

The direction of the pin cannot be changed after construction.
If configured as an output:
- The default state on Enable is 0 (inactive).
- Disable has no actual effect; unlike McuxpressoDigitalOut, the GPIO is not reverted to an input.
If configured as an input:
- The input buffer for the pin must be enabled in the IO Pad Controller (IOPCTL) via the Input Buffer Enable (IBENA) bit.
- The input polarity is affected by the Input Invert Enable (IIENA) bit on the corresponding IO Pad Controller (IOPCTL) register.

Inheritance diagram for pw::digital_io::McuxpressoDigitalInOutInterrupt:

Public Member Functions
	McuxpressoDigitalInOutInterrupt (GPIO_Type *base, uint32_t port, uint32_t pin, bool output)

bool	is_enabled () const
	Returns true if the line is enabled (in any state).

Public Member Functions inherited from pw::digital_io::DigitalInOutInterrupt
Status	ClearInterruptHandler ()

Status	DisableInterruptHandler ()

Status	EnableInterruptHandler ()

Result< State >	GetState ()

Result< bool >	IsStateActive ()

Status	SetInterruptHandler (InterruptTrigger trigger, InterruptHandler &&handler)

Status	SetState (State state)

Status	SetStateActive ()

Status	SetStateInactive ()

Public Member Functions inherited from pw::digital_io::DigitalIoOptional
constexpr bool	provides_input () const

constexpr bool	provides_output () const

constexpr bool	provides_interrupt () const

Result< State >	GetState ()

Status	SetState (State state)

Result< bool >	IsStateActive ()

Status	SetStateActive ()

Status	SetStateInactive ()

Status	SetInterruptHandler (InterruptTrigger trigger, InterruptHandler &&handler)

Status	ClearInterruptHandler ()

Status	EnableInterruptHandler ()

Status	DisableInterruptHandler ()

Status	Enable ()

Status	Disable ()

Private Member Functions
pw::Status	DoEnable (bool enable) override

pw::Result< pw::digital_io::State >	DoGetState () override

pw::Status	DoSetState (pw::digital_io::State state) override

pw::Status	DoSetInterruptHandler (pw::digital_io::InterruptTrigger trigger, pw::digital_io::InterruptHandler &&handler) override

pw::Status	DoEnableInterruptHandler (bool enable) override

Additional Inherited Members
Protected Member Functions inherited from pw::IntrusiveForwardList< T >::Item
constexpr	Item ()=default

The documentation for this class was generated from the following file:

Public Member Functions