/** ****************************************************************************** * @file stm32l4xx_hal_gpio.h * @author MCD Application Team * @brief Header file of GPIO HAL module. ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef STM32L4xx_HAL_GPIO_H #define STM32L4xx_HAL_GPIO_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32l4xx_hal_def.h" /** @addtogroup STM32L4xx_HAL_Driver * @{ */ /** @addtogroup GPIO * @{ */ /* Exported types ------------------------------------------------------------*/ /** @defgroup GPIO_Exported_Types GPIO Exported Types * @{ */ /** * @brief GPIO Init structure definition */ typedef struct { uint32_t Pin; /*!< Specifies the GPIO pins to be configured. This parameter can be any value of @ref GPIO_pins */ uint32_t Mode; /*!< Specifies the operating mode for the selected pins. This parameter can be a value of @ref GPIO_mode */ uint32_t Pull; /*!< Specifies the Pull-up or Pull-Down activation for the selected pins. This parameter can be a value of @ref GPIO_pull */ uint32_t Speed; /*!< Specifies the speed for the selected pins. This parameter can be a value of @ref GPIO_speed */ uint32_t Alternate; /*!< Peripheral to be connected to the selected pins This parameter can be a value of @ref GPIOEx_Alternate_function_selection */ } GPIO_InitTypeDef; /** * @brief GPIO Bit SET and Bit RESET enumeration */ typedef enum { GPIO_PIN_RESET = 0U, GPIO_PIN_SET } GPIO_PinState; /** * @} */ /* Exported constants --------------------------------------------------------*/ /** @defgroup GPIO_Exported_Constants GPIO Exported Constants * @{ */ /** @defgroup GPIO_pins GPIO pins * @{ */ #define GPIO_PIN_0 ((uint16_t)0x0001) /* Pin 0 selected */ #define GPIO_PIN_1 ((uint16_t)0x0002) /* Pin 1 selected */ #define GPIO_PIN_2 ((uint16_t)0x0004) /* Pin 2 selected */ #define GPIO_PIN_3 ((uint16_t)0x0008) /* Pin 3 selected */ #define GPIO_PIN_4 ((uint16_t)0x0010) /* Pin 4 selected */ #define GPIO_PIN_5 ((uint16_t)0x0020) /* Pin 5 selected */ #define GPIO_PIN_6 ((uint16_t)0x0040) /* Pin 6 selected */ #define GPIO_PIN_7 ((uint16_t)0x0080) /* Pin 7 selected */ #define GPIO_PIN_8 ((uint16_t)0x0100) /* Pin 8 selected */ #define GPIO_PIN_9 ((uint16_t)0x0200) /* Pin 9 selected */ #define GPIO_PIN_10 ((uint16_t)0x0400) /* Pin 10 selected */ #define GPIO_PIN_11 ((uint16_t)0x0800) /* Pin 11 selected */ #define GPIO_PIN_12 ((uint16_t)0x1000) /* Pin 12 selected */ #define GPIO_PIN_13 ((uint16_t)0x2000) /* Pin 13 selected */ #define GPIO_PIN_14 ((uint16_t)0x4000) /* Pin 14 selected */ #define GPIO_PIN_15 ((uint16_t)0x8000) /* Pin 15 selected */ #define GPIO_PIN_All ((uint16_t)0xFFFF) /* All pins selected */ #define GPIO_PIN_MASK ((uint32_t)0x0000FFFF) /* PIN mask for assert test */ /** * @} */ /** @defgroup GPIO_mode GPIO mode * @brief GPIO Configuration Mode * Elements values convention: 0x00WX00YZ * - W : EXTI trigger detection on 3 bits * - X : EXTI mode (IT or Event) on 2 bits * - Y : Output type (Push Pull or Open Drain) on 1 bit * - Z : GPIO mode (Input, Output, Alternate or Analog) on 2 bits * @{ */ #define GPIO_MODE_INPUT MODE_INPUT /*!< Input Floating Mode */ #define GPIO_MODE_OUTPUT_PP (MODE_OUTPUT | OUTPUT_PP) /*!< Output Push Pull Mode */ #define GPIO_MODE_OUTPUT_OD (MODE_OUTPUT | OUTPUT_OD) /*!< Output Open Drain Mode */ #define GPIO_MODE_AF_PP (MODE_AF | OUTPUT_PP) /*!< Alternate Function Push Pull Mode */ #define GPIO_MODE_AF_OD (MODE_AF | OUTPUT_OD) /*!< Alternate Function Open Drain Mode */ #define GPIO_MODE_ANALOG MODE_ANALOG /*!< Analog Mode */ #define GPIO_MODE_ANALOG_ADC_CONTROL (MODE_ANALOG | 0x8uL) /*!< Analog Mode for ADC conversion (0x0000000Bu)*/ #define GPIO_MODE_IT_RISING (MODE_INPUT | EXTI_IT | TRIGGER_RISING) /*!< External Interrupt Mode with Rising edge trigger detection */ #define GPIO_MODE_IT_FALLING (MODE_INPUT | EXTI_IT | TRIGGER_FALLING) /*!< External Interrupt Mode with Falling edge trigger detection */ #define GPIO_MODE_IT_RISING_FALLING (MODE_INPUT | EXTI_IT | TRIGGER_RISING | TRIGGER_FALLING) /*!< External Interrupt Mode with Rising/Falling edge trigger detection */ #define GPIO_MODE_EVT_RISING (MODE_INPUT | EXTI_EVT | TRIGGER_RISING) /*!< External Event Mode with Rising edge trigger detection */ #define GPIO_MODE_EVT_FALLING (MODE_INPUT | EXTI_EVT | TRIGGER_FALLING) /*!< External Event Mode with Falling edge trigger detection */ #define GPIO_MODE_EVT_RISING_FALLING (MODE_INPUT | EXTI_EVT | TRIGGER_RISING | TRIGGER_FALLING) /*!< External Event Mode with Rising/Falling edge trigger detection */ /** * @} */ /** @defgroup GPIO_speed GPIO speed * @brief GPIO Output Maximum frequency * @{ */ #define GPIO_SPEED_FREQ_LOW 0x00000000u /*!< Low speed */ #define GPIO_SPEED_FREQ_MEDIUM 0x00000001u /*!< Medium speed */ #define GPIO_SPEED_FREQ_HIGH 0x00000002u /*!< High speed */ #define GPIO_SPEED_FREQ_VERY_HIGH 0x00000003u /*!< Very high speed */ /** * @} */ /** @defgroup GPIO_pull GPIO pull * @brief GPIO Pull-Up or Pull-Down Activation * @{ */ #define GPIO_NOPULL 0x00000000u /*!< No Pull-up or Pull-down activation */ #define GPIO_PULLUP 0x00000001u /*!< Pull-up activation */ #define GPIO_PULLDOWN 0x00000002u /*!< Pull-down activation */ /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /** @defgroup GPIO_Exported_Macros GPIO Exported Macros * @{ */ /** * @brief Check whether the specified EXTI line flag is set or not. * @param __EXTI_LINE__ specifies the EXTI line flag to check. * This parameter can be GPIO_PIN_x where x can be(0..15) * @retval The new state of __EXTI_LINE__ (SET or RESET). */ #define __HAL_GPIO_EXTI_GET_FLAG(__EXTI_LINE__) (EXTI->PR1 & (__EXTI_LINE__)) /** * @brief Clear the EXTI's line pending flags. * @param __EXTI_LINE__ specifies the EXTI lines flags to clear. * This parameter can be any combination of GPIO_PIN_x where x can be (0..15) * @retval None */ #define __HAL_GPIO_EXTI_CLEAR_FLAG(__EXTI_LINE__) (EXTI->PR1 = (__EXTI_LINE__)) /** * @brief Check whether the specified EXTI line is asserted or not. * @param __EXTI_LINE__ specifies the EXTI line to check. * This parameter can be GPIO_PIN_x where x can be(0..15) * @retval The new state of __EXTI_LINE__ (SET or RESET). */ #define __HAL_GPIO_EXTI_GET_IT(__EXTI_LINE__) (EXTI->PR1 & (__EXTI_LINE__)) /** * @brief Clear the EXTI's line pending bits. * @param __EXTI_LINE__ specifies the EXTI lines to clear. * This parameter can be any combination of GPIO_PIN_x where x can be (0..15) * @retval None */ #define __HAL_GPIO_EXTI_CLEAR_IT(__EXTI_LINE__) (EXTI->PR1 = (__EXTI_LINE__)) /** * @brief Generate a Software interrupt on selected EXTI line. * @param __EXTI_LINE__ specifies the EXTI line to check. * This parameter can be GPIO_PIN_x where x can be(0..15) * @retval None */ #define __HAL_GPIO_EXTI_GENERATE_SWIT(__EXTI_LINE__) (EXTI->SWIER1 |= (__EXTI_LINE__)) /** * @} */ /* Private macros ------------------------------------------------------------*/ /** @defgroup GPIO_Private_Constants GPIO Private Constants * @{ */ #define GPIO_MODE_Pos 0u #define GPIO_MODE (0x3uL << GPIO_MODE_Pos) #define MODE_INPUT (0x0uL << GPIO_MODE_Pos) #define MODE_OUTPUT (0x1uL << GPIO_MODE_Pos) #define MODE_AF (0x2uL << GPIO_MODE_Pos) #define MODE_ANALOG (0x3uL << GPIO_MODE_Pos) #define OUTPUT_TYPE_Pos 4u #define OUTPUT_TYPE (0x1uL << OUTPUT_TYPE_Pos) #define OUTPUT_PP (0x0uL << OUTPUT_TYPE_Pos) #define OUTPUT_OD (0x1uL << OUTPUT_TYPE_Pos) #define EXTI_MODE_Pos 16u #define EXTI_MODE (0x3uL << EXTI_MODE_Pos) #define EXTI_IT (0x1uL << EXTI_MODE_Pos) #define EXTI_EVT (0x2uL << EXTI_MODE_Pos) #define TRIGGER_MODE_Pos 20u #define TRIGGER_MODE (0x7uL << TRIGGER_MODE_Pos) #define TRIGGER_RISING (0x1uL << TRIGGER_MODE_Pos) #define TRIGGER_FALLING (0x2uL << TRIGGER_MODE_Pos) /** * @} */ /** @addtogroup GPIO_Private_Macros GPIO Private Macros * @{ */ #define IS_GPIO_PIN_ACTION(ACTION) (((ACTION) == GPIO_PIN_RESET) || ((ACTION) == GPIO_PIN_SET)) #define IS_GPIO_PIN(__PIN__) ((((uint32_t)(__PIN__) & GPIO_PIN_MASK) != 0x00U) &&\ (((uint32_t)(__PIN__) & ~GPIO_PIN_MASK) == 0x00U)) #define IS_GPIO_MODE(__MODE__) (((__MODE__) == GPIO_MODE_INPUT) ||\ ((__MODE__) == GPIO_MODE_OUTPUT_PP) ||\ ((__MODE__) == GPIO_MODE_OUTPUT_OD) ||\ ((__MODE__) == GPIO_MODE_AF_PP) ||\ ((__MODE__) == GPIO_MODE_AF_OD) ||\ ((__MODE__) == GPIO_MODE_IT_RISING) ||\ ((__MODE__) == GPIO_MODE_IT_FALLING) ||\ ((__MODE__) == GPIO_MODE_IT_RISING_FALLING) ||\ ((__MODE__) == GPIO_MODE_EVT_RISING) ||\ ((__MODE__) == GPIO_MODE_EVT_FALLING) ||\ ((__MODE__) == GPIO_MODE_EVT_RISING_FALLING) ||\ ((__MODE__) == GPIO_MODE_ANALOG) ||\ ((__MODE__) == GPIO_MODE_ANALOG_ADC_CONTROL)) #define IS_GPIO_SPEED(__SPEED__) (((__SPEED__) == GPIO_SPEED_FREQ_LOW) ||\ ((__SPEED__) == GPIO_SPEED_FREQ_MEDIUM) ||\ ((__SPEED__) == GPIO_SPEED_FREQ_HIGH) ||\ ((__SPEED__) == GPIO_SPEED_FREQ_VERY_HIGH)) #define IS_GPIO_PULL(__PULL__) (((__PULL__) == GPIO_NOPULL) ||\ ((__PULL__) == GPIO_PULLUP) || \ ((__PULL__) == GPIO_PULLDOWN)) /** * @} */ /* Include GPIO HAL Extended module */ #include "stm32l4xx_hal_gpio_ex.h" /* Exported functions --------------------------------------------------------*/ /** @addtogroup GPIO_Exported_Functions GPIO Exported Functions * @{ */ /** @addtogroup GPIO_Exported_Functions_Group1 Initialization/de-initialization functions * @brief Initialization and Configuration functions * @{ */ /* Initialization and de-initialization functions *****************************/ void HAL_GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_Init); void HAL_GPIO_DeInit(GPIO_TypeDef *GPIOx, uint32_t GPIO_Pin); /** * @} */ /** @addtogroup GPIO_Exported_Functions_Group2 IO operation functions * @{ */ /* IO operation functions *****************************************************/ GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState); void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin); void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin); /** * @} */ /** * @} */ /** * @} */ /** * @} */ #ifdef __cplusplus } #endif #endif /* STM32L4xx_HAL_GPIO_H */