Gpio_driver

Data Structures
struct	_gpio_pin_config
	GPIO Init structure definition. More...

Variables
gpio_pin_direction_t	_gpio_pin_config::direction
uint8_t	_gpio_pin_config::outputLogic
gpio_interrupt_mode_t	_gpio_pin_config::interruptMode

Driver version
enum	_gpio_pin_direction { kGPIO_DigitalInput = 0U , kGPIO_DigitalOutput = 1U }
	GPIO direction definition. More...
enum	_gpio_interrupt_mode {   kGPIO_NoIntmode = 0U , kGPIO_IntLowLevel = 1U , kGPIO_IntHighLevel = 2U , kGPIO_IntRisingEdge = 3U ,   kGPIO_IntFallingEdge = 4U , kGPIO_IntRisingOrFallingEdge = 5U }
	GPIO interrupt mode definition. More...
typedef enum _gpio_pin_direction	gpio_pin_direction_t
	GPIO direction definition.
typedef enum _gpio_interrupt_mode	gpio_interrupt_mode_t
	GPIO interrupt mode definition.
typedef struct _gpio_pin_config	gpio_pin_config_t
	GPIO Init structure definition.
#define	FSL_GPIO_DRIVER_VERSION   (MAKE_VERSION(2, 0, 6))
	GPIO driver version.

GPIO Initialization and Configuration functions
void	GPIO_PinInit (GPIO_Type *base, uint32_t pin, const gpio_pin_config_t *Config)
	Initializes the GPIO peripheral according to the specified parameters in the initConfig.

GPIO Reads and Write Functions
void	GPIO_PinWrite (GPIO_Type *base, uint32_t pin, uint8_t output)
	Sets the output level of the individual GPIO pin to logic 1 or 0.

Interrupts and flags management functions
void	GPIO_PinSetInterruptConfig (GPIO_Type *base, uint32_t pin, gpio_interrupt_mode_t pinInterruptMode)
	Sets the current pin interrupt mode.

Detailed Description

Enumeration Type Documentation

_gpio_interrupt_mode

enum _gpio_interrupt_mode

GPIO interrupt mode definition.

Enumerator
kGPIO_NoIntmode	Set current pin general IO functionality.
kGPIO_IntLowLevel	Set current pin interrupt is low-level sensitive.
kGPIO_IntHighLevel	Set current pin interrupt is high-level sensitive.
kGPIO_IntRisingEdge	Set current pin interrupt is rising-edge sensitive.
kGPIO_IntFallingEdge	Set current pin interrupt is falling-edge sensitive.
kGPIO_IntRisingOrFallingEdge	Enable the edge select bit to override the ICR register's configuration.

_gpio_pin_direction

enum _gpio_pin_direction

GPIO direction definition.

Enumerator
kGPIO_DigitalInput	Set current pin as digital input.
kGPIO_DigitalOutput	Set current pin as digital output.

Function Documentation

GPIO_PinInit()

void GPIO_PinInit	(	GPIO_Type *	base,
		uint32_t	pin,
		const gpio_pin_config_t *	Config
	)

Initializes the GPIO peripheral according to the specified parameters in the initConfig.

Parameters

base	GPIO base pointer.
pin	Specifies the pin number
Config	pointer to a gpio_pin_config_t structure that contains the configuration information.

brief Initializes the GPIO peripheral according to the specified parameters in the initConfig.

param base GPIO base pointer. param pin Specifies the pin number param initConfig pointer to a ref gpio_pin_config_t structure that contains the configuration information.

GPIO_PinSetInterruptConfig()

void GPIO_PinSetInterruptConfig	(	GPIO_Type *	base,
		uint32_t	pin,
		gpio_interrupt_mode_t	pinInterruptMode
	)

Sets the current pin interrupt mode.

Parameters

base	GPIO base pointer.
pin	GPIO port pin number.
pinInterruptMode	pointer to a gpio_interrupt_mode_t structure that contains the interrupt mode information.

brief Sets the current pin interrupt mode.

param base GPIO base pointer. param pin GPIO port pin number. param pininterruptMode pointer to a ref gpio_interrupt_mode_t structure that contains the interrupt mode information.

GPIO_PinWrite()

void GPIO_PinWrite	(	GPIO_Type *	base,
		uint32_t	pin,
		uint8_t	output
	)

Sets the output level of the individual GPIO pin to logic 1 or 0.

Parameters

base	GPIO base pointer.
pin	GPIO port pin number.
output	GPIOpin output logic level. 0: corresponding pin output low-logic level. 1: corresponding pin output high-logic level.

brief Sets the output level of the individual GPIO pin to logic 1 or 0.

param base GPIO base pointer. param pin GPIO port pin number. param output GPIOpin output logic level.

• 0: corresponding pin output low-logic level.
• 1: corresponding pin output high-logic level.

Variable Documentation

direction

gpio_pin_direction_t _gpio_pin_config::direction

Specifies the pin direction.

interruptMode

gpio_interrupt_mode_t _gpio_pin_config::interruptMode

Specifies the pin interrupt mode, a value of gpio_interrupt_mode_t.

outputLogic

uint8_t _gpio_pin_config::outputLogic

Set a default output logic, which has no use in input