GPIO: General Purpose I/O

The MCUXpresso SDK provides a peripheral driver for the General Purpose I/O (GPIO) module of MCUXpresso SDK devices.

Function groups

Initialization and deinitialization

The function GPIO_PinInit() initializes the GPIO with specified configuration. The function GPIO_PortInit() reserved for other cpu(LPC8N04 only have one port,so default port 0).

Pin manipulation

The function GPIO_PinWrite() set output state of selected GPIO pin. The function GPIO_PinRead() read input value of selected GPIO pin.

Port manipulation

The function GPIO_PortSet() sets the output level of selected GPIO pins to the logic 1. The function GPIO_PortClear() sets the output level of selected GPIO pins to the logic 0. The function GPIO_PortToggle() reverse the output level of selected GPIO pins. The function GPIO_PortRead() read input value of whole GPIO port.

Port Interrupts manipulation

The function GPIO_PortEnableInterrupts() Enables interrupts for selected pins on a port The function GPIO_PortDisableInterrupts() Disables interrupts for selected pins on a port The function GPIO_PortGetInterruptsFlags() Read raw interrupt pending status for pin interrupts for a port The function GPIO_PortReadMaskedInterrupts() Read masked interrupt pending status for pin interrupts for a port The function GPIO_PortClearInterruptFlags() Clears pending interrupts for selected pins for a port

Typical use case

Example use of GPIO API. Refer to the driver examples codes located at <SDK_ROOT>/boards/<BOARD>/driver_examples/gpio