Data Fields
gpio_conf_stm32 Union Reference
Drivers » Peripheral Driver Interface » GPIO Low-Level API

GPIO pin configuration for STM32 MCUs. More...

Detailed Description

GPIO pin configuration for STM32 MCUs.

Definition at line 152 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.
 
   gpio_pull_t   pull: 2
 Pull resistor configuration.
 
   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

◆ 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 186 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 172 of file cpu_gpio_ll.h.

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