GPIO pin configuration for STM32 MCUs. More...

Detailed Description

GPIO pin configuration for STM32 MCUs.

Definition at line 156 of file cpu_gpio_ll.h.

#include <cpu_gpio_ll.h>

Data Fields
uint8_t	bits
	the raw bits

struct {

gpio_state_t state: 3
	State of the pin. More...

gpio_pull_t pull: 2
	Pull resistor configuration. More...

gpio_slew_t slew_rate: 2
	Configure the slew rate of outputs. More...

bool initial_value: 1
	Initial value of the output. More...

};

Field Documentation

◆ bits

uint8_t gpio_conf_stm32::bits

the raw bits

Definition at line 157 of file cpu_gpio_ll.h.

◆ initial_value

bool gpio_conf_stm32::initial_value

Initial value of the output.

Ignored if gpio_conf_stm32::state is set to GPIO_INPUT or GPIO_DISCONNECT. If the pin was previously in a high impedance state, it is guaranteed to directly transition to the given initial value.

gpio_ll_query_conf will write the current value of the specified pin here, which is read from the input register when the state is GPIO_INPUT, otherwise the state from the output register is consulted.

Definition at line 190 of file cpu_gpio_ll.h.

◆ pull

gpio_pull_t gpio_conf_stm32::pull

Pull resistor configuration.

Definition at line 166 of file cpu_gpio_ll.h.

◆ slew_rate

gpio_slew_t gpio_conf_stm32::slew_rate

Configure the slew rate of outputs.

Warning: If the requested slew rate is not available, the closest fit supported will be configured instead.

This value is ignored unless gpio_conf_stm32::state is configured to GPIO_OUTPUT_PUSH_PULL or GPIO_OUTPUT_OPEN_DRAIN.

Definition at line 176 of file cpu_gpio_ll.h.

◆ state

gpio_state_t gpio_conf_stm32::state

State of the pin.

Definition at line 162 of file cpu_gpio_ll.h.

The documentation for this union was generated from the following file:

cpu/stm32/include/periph/cpu_gpio_ll.h