gpio-stm-impl.h¶

STM32 specific GPIO implementation details for CFBD. More...

Detailed Description¶

STM32 specific GPIO implementation details for CFBD.

This header provides STM32-specific types used by the public GPIO abstraction ([lib/gpio/gpio.h](Files/gpio_8h.md#file-gpio.h)). It is included only when the CFBD_IS_ST macro selects the ST platform implementation. The declarations here reference HAL types from stm32f1xx_hal_gpio.h.

The STM32 GPIO backend encapsulates STM HAL initialization parameters and provides the low-level interface for pin configuration, setting, clearing and toggling operations on STM32 microcontrollers.

STM32 GPIO Usage¶

To use STM32 GPIO functionality:

Include [gpio.h](Files/gpio_8h.md#file-gpio.h) (which conditionally includes this file when CFBD_IS_ST is set)
Populate a CFBD_ST_GPIOInitParams structure with HAL types
Cast to CFBD_GPIOInitParams and pass to CFBD_GPIOInit

STM32 GPIO Example¶

#include "lib/gpio/gpio.h"
#include <stm32f1xx_hal.h>

// Example: Initialize GPIOA pin 5 as output
CFBD_ST_GPIOInitParams stm_params;
stm_params.handle = GPIOA;
stm_params.pin = GPIO_PIN_5;
stm_params.initer.Mode = GPIO_MODE_OUTPUT_PP;
stm_params.initer.Pull = GPIO_NOPULL;
stm_params.initer.Speed = GPIO_SPEED_FREQ_HIGH;

CFBD_GPIOHandle gpio_handle;
CFBD_GPIOInit(&gpio_handle, (CFBD_GPIOInitParams)&stm_params);

// Set pin high
CFBD_GPIOSet(&gpio_handle);

Source code¶

#pragma once
#include "../config/lib_settings.h"

#if defined(CFBD_IS_ST)
#include <stdint.h>

typedef struct
{
    GPIO_TypeDef* handle;

    uint32_t pin;

    GPIO_InitTypeDef initer;
} CFBD_ST_GPIOInitParams; 

#endif

Updated on 2026-02-03 at 13:21:55 +0000