Macros
GPIO drive strength flags
The drive strength flags are a Zephyr specific extension of the standard GPIO flags specified by the Linux GPIO binding. Only applicable for Nordic Semiconductor nRF SoCs. The drive strength of individual pins can be configured independently for when the pin output is low and high. The `GPIO_DS__LOW` enumerations define the drive strength of a pin when output is low. The `GPIO_DS__HIGH` enumerations define the drive strength of a pin when output is high. The interface supports two different drive strengths: `DFLT` - The lowest drive strength supported by the HW `ALT` - The highest drive strength supported by the HW
#define	NRF_GPIO_DS_DFLT_LOW (0x0U << NRF_GPIO_DS_LOW_POS)

#define	NRF_GPIO_DS_ALT_LOW (0x1U << NRF_GPIO_DS_LOW_POS)

#define	NRF_GPIO_DS_DFLT_HIGH (0x0U << NRF_GPIO_DS_HIGH_POS)

#define	NRF_GPIO_DS_ALT_HIGH (0x1U << NRF_GPIO_DS_HIGH_POS)

#define	NRF_GPIO_DS_DFLT (NRF_GPIO_DS_DFLT_LOW \| NRF_GPIO_DS_DFLT_HIGH)

#define	NRF_GPIO_DS_ALT (NRF_GPIO_DS_ALT_LOW \| NRF_GPIO_DS_ALT_HIGH)

Macro Definition Documentation

◆ NRF_GPIO_DS_ALT

#define NRF_GPIO_DS_ALT (NRF_GPIO_DS_ALT_LOW | NRF_GPIO_DS_ALT_HIGH)

Combined alternative drive strength.

◆ NRF_GPIO_DS_ALT_HIGH

#define NRF_GPIO_DS_ALT_HIGH (0x1U << NRF_GPIO_DS_HIGH_POS)

Alternative drive strength when GPIO pin output is high. For hardware that does not support configurable drive strengths use the default drive strength.

◆ NRF_GPIO_DS_ALT_LOW

#define NRF_GPIO_DS_ALT_LOW (0x1U << NRF_GPIO_DS_LOW_POS)

Alternative drive strength when GPIO pin output is low. For hardware that does not support configurable drive strength use the default drive strength.

◆ NRF_GPIO_DS_DFLT

#define NRF_GPIO_DS_DFLT (NRF_GPIO_DS_DFLT_LOW | NRF_GPIO_DS_DFLT_HIGH)

Combined default drive strength.

◆ NRF_GPIO_DS_DFLT_HIGH

#define NRF_GPIO_DS_DFLT_HIGH (0x0U << NRF_GPIO_DS_HIGH_POS)

Default drive strength when GPIO pin output is high.

◆ NRF_GPIO_DS_DFLT_LOW

#define NRF_GPIO_DS_DFLT_LOW (0x0U << NRF_GPIO_DS_LOW_POS)

Default drive strength standard when GPIO pin output is low.