GPIO abstraction

GPIO pin abstraction and port abstraction for reading and writing byte-wise to GPIO ports. More...

Enumerations
enum	nrf_gpio_port_dir_t {   NRF_GPIO_PORT_DIR_OUTPUT,   NRF_GPIO_PORT_DIR_INPUT }
	Enumerator used for setting the direction of a GPIO port. More...
enum	nrf_gpio_pin_dir_t {   NRF_GPIO_PIN_DIR_INPUT,   NRF_GPIO_PIN_DIR_OUTPUT }
enum	nrf_gpio_port_select_t {   NRF_GPIO_PORT_SELECT_PORT0 = 0,   NRF_GPIO_PORT_SELECT_PORT1,   NRF_GPIO_PORT_SELECT_PORT2,   NRF_GPIO_PORT_SELECT_PORT3 }
	Enumerator used for selecting between port 0 - 3. More...
enum	nrf_gpio_pin_pull_t {   NRF_GPIO_PIN_NOPULL = (0x00UL),   NRF_GPIO_PIN_PULLDOWN = (0x01UL),   NRF_GPIO_PIN_PULLUP = (0x03UL) }
	Enumerator used for selecting the pin to be pulled down or up at the time of pin configuration. More...
enum	nrf_gpio_pin_sense_t {   NRF_GPIO_PIN_NOSENSE = (0x00UL),   NRF_GPIO_PIN_SENSE_LOW = (0x03UL),   NRF_GPIO_PIN_SENSE_HIGH = (0x02UL) }
	Enumerator used for selecting the pin to sense high or low level on the pin input. More...

Detailed Description

GPIO pin abstraction and port abstraction for reading and writing byte-wise to GPIO ports.

Here, the GPIO ports are defined as follows:

• Port 0 -> pin 0-7
• Port 1 -> pin 8-15
• Port 2 -> pin 16-23
• Port 3 -> pin 24-31

Enumeration Type Documentation

enum nrf_gpio_pin_dir_t

Pin direction definitions.

Enumerator
NRF_GPIO_PIN_DIR_INPUT	Input.
NRF_GPIO_PIN_DIR_OUTPUT	Output.

enum nrf_gpio_pin_pull_t

Enumerator used for selecting the pin to be pulled down or up at the time of pin configuration.

Enumerator
NRF_GPIO_PIN_NOPULL	Pin pullup resistor disabled. No pull.
NRF_GPIO_PIN_PULLDOWN	Pin pulldown resistor enabled. Pulldown on pin.
NRF_GPIO_PIN_PULLUP	Pin pullup resistor enabled. Pullup on pin.

enum nrf_gpio_pin_sense_t

Enumerator used for selecting the pin to sense high or low level on the pin input.

Enumerator
NRF_GPIO_PIN_NOSENSE	Pin sense level disabled. Disabled.
NRF_GPIO_PIN_SENSE_LOW	Pin sense low level. Wakeup on low level.
NRF_GPIO_PIN_SENSE_HIGH	Pin sense high level. Wakeup on high level.

enum nrf_gpio_port_dir_t

Enumerator used for setting the direction of a GPIO port.

Enumerator
NRF_GPIO_PORT_DIR_OUTPUT	Output.
NRF_GPIO_PORT_DIR_INPUT	Input.

enum nrf_gpio_port_select_t

Enumerator used for selecting between port 0 - 3.

Enumerator
NRF_GPIO_PORT_SELECT_PORT0	Port 0 (GPIO pin 0-7)
NRF_GPIO_PORT_SELECT_PORT1	Port 1 (GPIO pin 8-15)
NRF_GPIO_PORT_SELECT_PORT2	Port 2 (GPIO pin 16-23)
NRF_GPIO_PORT_SELECT_PORT3	Port 3 (GPIO pin 24-31)