nRF51 SDK - S110 SoftDevice
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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:

Enumeration Type Documentation

Pin direction definitions.

Enumerator
NRF_GPIO_PIN_DIR_INPUT 

Input.

NRF_GPIO_PIN_DIR_OUTPUT 

Output.

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.

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.

Enumerator used for setting the direction of a GPIO port.

Enumerator
NRF_GPIO_PORT_DIR_OUTPUT 

Output.

NRF_GPIO_PORT_DIR_INPUT 

Input.

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)