ref: cbf74d6c41613815366711a6a5322033c7c0ccc1
dir: /demos/stm32f429_disco/stm/stm32f4_spl/inc/stm32f4xx_gpio.h/
/** ****************************************************************************** * @file stm32f4xx_gpio.h * @author MCD Application Team * @version V1.3.0 * @date 08-November-2013 * @brief This file contains all the functions prototypes for the GPIO firmware * library. ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2> * * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.st.com/software_license_agreement_liberty_v2 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F4xx_GPIO_H #define __STM32F4xx_GPIO_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx.h" /** @addtogroup STM32F4xx_StdPeriph_Driver * @{ */ /** @addtogroup GPIO * @{ */ /* Exported types ------------------------------------------------------------*/ #define IS_GPIO_ALL_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \ ((PERIPH) == GPIOB) || \ ((PERIPH) == GPIOC) || \ ((PERIPH) == GPIOD) || \ ((PERIPH) == GPIOE) || \ ((PERIPH) == GPIOF) || \ ((PERIPH) == GPIOG) || \ ((PERIPH) == GPIOH) || \ ((PERIPH) == GPIOI) || \ ((PERIPH) == GPIOJ) || \ ((PERIPH) == GPIOK)) /** * @brief GPIO Configuration Mode enumeration */ typedef enum { GPIO_Mode_IN = 0x00, /*!< GPIO Input Mode */ GPIO_Mode_OUT = 0x01, /*!< GPIO Output Mode */ GPIO_Mode_AF = 0x02, /*!< GPIO Alternate function Mode */ GPIO_Mode_AN = 0x03 /*!< GPIO Analog Mode */ }GPIOMode_TypeDef; #define IS_GPIO_MODE(MODE) (((MODE) == GPIO_Mode_IN) || ((MODE) == GPIO_Mode_OUT) || \ ((MODE) == GPIO_Mode_AF)|| ((MODE) == GPIO_Mode_AN)) /** * @brief GPIO Output type enumeration */ typedef enum { GPIO_OType_PP = 0x00, GPIO_OType_OD = 0x01 }GPIOOType_TypeDef; #define IS_GPIO_OTYPE(OTYPE) (((OTYPE) == GPIO_OType_PP) || ((OTYPE) == GPIO_OType_OD)) /** * @brief GPIO Output Maximum frequency enumeration */ typedef enum { GPIO_Low_Speed = 0x00, /*!< Low speed */ GPIO_Medium_Speed = 0x01, /*!< Medium speed */ GPIO_Fast_Speed = 0x02, /*!< Fast speed */ GPIO_High_Speed = 0x03 /*!< High speed */ }GPIOSpeed_TypeDef; /* Add legacy definition */ #define GPIO_Speed_2MHz GPIO_Low_Speed #define GPIO_Speed_25MHz GPIO_Medium_Speed #define GPIO_Speed_50MHz GPIO_Fast_Speed #define GPIO_Speed_100MHz GPIO_High_Speed #define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_Low_Speed) || ((SPEED) == GPIO_Medium_Speed) || \ ((SPEED) == GPIO_Fast_Speed)|| ((SPEED) == GPIO_High_Speed)) /** * @brief GPIO Configuration PullUp PullDown enumeration */ typedef enum { GPIO_PuPd_NOPULL = 0x00, GPIO_PuPd_UP = 0x01, GPIO_PuPd_DOWN = 0x02 }GPIOPuPd_TypeDef; #define IS_GPIO_PUPD(PUPD) (((PUPD) == GPIO_PuPd_NOPULL) || ((PUPD) == GPIO_PuPd_UP) || \ ((PUPD) == GPIO_PuPd_DOWN)) /** * @brief GPIO Bit SET and Bit RESET enumeration */ typedef enum { Bit_RESET = 0, Bit_SET }BitAction; #define IS_GPIO_BIT_ACTION(ACTION) (((ACTION) == Bit_RESET) || ((ACTION) == Bit_SET)) /** * @brief GPIO Init structure definition */ typedef struct { uint32_t GPIO_Pin; /*!< Specifies the GPIO pins to be configured. This parameter can be any value of @ref GPIO_pins_define */ GPIOMode_TypeDef GPIO_Mode; /*!< Specifies the operating mode for the selected pins. This parameter can be a value of @ref GPIOMode_TypeDef */ GPIOSpeed_TypeDef GPIO_Speed; /*!< Specifies the speed for the selected pins. This parameter can be a value of @ref GPIOSpeed_TypeDef */ GPIOOType_TypeDef GPIO_OType; /*!< Specifies the operating output type for the selected pins. This parameter can be a value of @ref GPIOOType_TypeDef */ GPIOPuPd_TypeDef GPIO_PuPd; /*!< Specifies the operating Pull-up/Pull down for the selected pins. This parameter can be a value of @ref GPIOPuPd_TypeDef */ }GPIO_InitTypeDef; /* Exported constants --------------------------------------------------------*/ /** @defgroup GPIO_Exported_Constants * @{ */ /** @defgroup GPIO_pins_define * @{ */ #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 IS_GPIO_PIN(PIN) ((((PIN) & (uint16_t)0x00) == 0x00) && ((PIN) != (uint16_t)0x00)) #define IS_GET_GPIO_PIN(PIN) (((PIN) == GPIO_Pin_0) || \ ((PIN) == GPIO_Pin_1) || \ ((PIN) == GPIO_Pin_2) || \ ((PIN) == GPIO_Pin_3) || \ ((PIN) == GPIO_Pin_4) || \ ((PIN) == GPIO_Pin_5) || \ ((PIN) == GPIO_Pin_6) || \ ((PIN) == GPIO_Pin_7) || \ ((PIN) == GPIO_Pin_8) || \ ((PIN) == GPIO_Pin_9) || \ ((PIN) == GPIO_Pin_10) || \ ((PIN) == GPIO_Pin_11) || \ ((PIN) == GPIO_Pin_12) || \ ((PIN) == GPIO_Pin_13) || \ ((PIN) == GPIO_Pin_14) || \ ((PIN) == GPIO_Pin_15)) /** * @} */ /** @defgroup GPIO_Pin_sources * @{ */ #define GPIO_PinSource0 ((uint8_t)0x00) #define GPIO_PinSource1 ((uint8_t)0x01) #define GPIO_PinSource2 ((uint8_t)0x02) #define GPIO_PinSource3 ((uint8_t)0x03) #define GPIO_PinSource4 ((uint8_t)0x04) #define GPIO_PinSource5 ((uint8_t)0x05) #define GPIO_PinSource6 ((uint8_t)0x06) #define GPIO_PinSource7 ((uint8_t)0x07) #define GPIO_PinSource8 ((uint8_t)0x08) #define GPIO_PinSource9 ((uint8_t)0x09) #define GPIO_PinSource10 ((uint8_t)0x0A) #define GPIO_PinSource11 ((uint8_t)0x0B) #define GPIO_PinSource12 ((uint8_t)0x0C) #define GPIO_PinSource13 ((uint8_t)0x0D) #define GPIO_PinSource14 ((uint8_t)0x0E) #define GPIO_PinSource15 ((uint8_t)0x0F) #define IS_GPIO_PIN_SOURCE(PINSOURCE) (((PINSOURCE) == GPIO_PinSource0) || \ ((PINSOURCE) == GPIO_PinSource1) || \ ((PINSOURCE) == GPIO_PinSource2) || \ ((PINSOURCE) == GPIO_PinSource3) || \ ((PINSOURCE) == GPIO_PinSource4) || \ ((PINSOURCE) == GPIO_PinSource5) || \ ((PINSOURCE) == GPIO_PinSource6) || \ ((PINSOURCE) == GPIO_PinSource7) || \ ((PINSOURCE) == GPIO_PinSource8) || \ ((PINSOURCE) == GPIO_PinSource9) || \ ((PINSOURCE) == GPIO_PinSource10) || \ ((PINSOURCE) == GPIO_PinSource11) || \ ((PINSOURCE) == GPIO_PinSource12) || \ ((PINSOURCE) == GPIO_PinSource13) || \ ((PINSOURCE) == GPIO_PinSource14) || \ ((PINSOURCE) == GPIO_PinSource15)) /** * @} */ /** @defgroup GPIO_Alternat_function_selection_define * @{ */ /** * @brief AF 0 selection */ #define GPIO_AF_RTC_50Hz ((uint8_t)0x00) /* RTC_50Hz Alternate Function mapping */ #define GPIO_AF_MCO ((uint8_t)0x00) /* MCO (MCO1 and MCO2) Alternate Function mapping */ #define GPIO_AF_TAMPER ((uint8_t)0x00) /* TAMPER (TAMPER_1 and TAMPER_2) Alternate Function mapping */ #define GPIO_AF_SWJ ((uint8_t)0x00) /* SWJ (SWD and JTAG) Alternate Function mapping */ #define GPIO_AF_TRACE ((uint8_t)0x00) /* TRACE Alternate Function mapping */ /** * @brief AF 1 selection */ #define GPIO_AF_TIM1 ((uint8_t)0x01) /* TIM1 Alternate Function mapping */ #define GPIO_AF_TIM2 ((uint8_t)0x01) /* TIM2 Alternate Function mapping */ /** * @brief AF 2 selection */ #define GPIO_AF_TIM3 ((uint8_t)0x02) /* TIM3 Alternate Function mapping */ #define GPIO_AF_TIM4 ((uint8_t)0x02) /* TIM4 Alternate Function mapping */ #define GPIO_AF_TIM5 ((uint8_t)0x02) /* TIM5 Alternate Function mapping */ /** * @brief AF 3 selection */ #define GPIO_AF_TIM8 ((uint8_t)0x03) /* TIM8 Alternate Function mapping */ #define GPIO_AF_TIM9 ((uint8_t)0x03) /* TIM9 Alternate Function mapping */ #define GPIO_AF_TIM10 ((uint8_t)0x03) /* TIM10 Alternate Function mapping */ #define GPIO_AF_TIM11 ((uint8_t)0x03) /* TIM11 Alternate Function mapping */ /** * @brief AF 4 selection */ #define GPIO_AF_I2C1 ((uint8_t)0x04) /* I2C1 Alternate Function mapping */ #define GPIO_AF_I2C2 ((uint8_t)0x04) /* I2C2 Alternate Function mapping */ #define GPIO_AF_I2C3 ((uint8_t)0x04) /* I2C3 Alternate Function mapping */ /** * @brief AF 5 selection */ #define GPIO_AF_SPI1 ((uint8_t)0x05) /* SPI1 Alternate Function mapping */ #define GPIO_AF_SPI2 ((uint8_t)0x05) /* SPI2/I2S2 Alternate Function mapping */ #define GPIO_AF_SPI4 ((uint8_t)0x05) /* SPI4 Alternate Function mapping */ #define GPIO_AF_SPI5 ((uint8_t)0x05) /* SPI5 Alternate Function mapping */ #define GPIO_AF_SPI6 ((uint8_t)0x05) /* SPI6 Alternate Function mapping */ /** * @brief AF 6 selection */ #define GPIO_AF_SPI3 ((uint8_t)0x06) /* SPI3/I2S3 Alternate Function mapping */ #define GPIO_AF_SAI1 ((uint8_t)0x06) /* SAI1 Alternate Function mapping */ /** * @brief AF 7 selection */ #define GPIO_AF_USART1 ((uint8_t)0x07) /* USART1 Alternate Function mapping */ #define GPIO_AF_USART2 ((uint8_t)0x07) /* USART2 Alternate Function mapping */ #define GPIO_AF_USART3 ((uint8_t)0x07) /* USART3 Alternate Function mapping */ #define GPIO_AF_I2S3ext ((uint8_t)0x07) /* I2S3ext Alternate Function mapping */ /** * @brief AF 8 selection */ #define GPIO_AF_UART4 ((uint8_t)0x08) /* UART4 Alternate Function mapping */ #define GPIO_AF_UART5 ((uint8_t)0x08) /* UART5 Alternate Function mapping */ #define GPIO_AF_USART6 ((uint8_t)0x08) /* USART6 Alternate Function mapping */ #define GPIO_AF_UART7 ((uint8_t)0x08) /* UART7 Alternate Function mapping */ #define GPIO_AF_UART8 ((uint8_t)0x08) /* UART8 Alternate Function mapping */ /** * @brief AF 9 selection */ #define GPIO_AF_CAN1 ((uint8_t)0x09) /* CAN1 Alternate Function mapping */ #define GPIO_AF_CAN2 ((uint8_t)0x09) /* CAN2 Alternate Function mapping */ #define GPIO_AF_TIM12 ((uint8_t)0x09) /* TIM12 Alternate Function mapping */ #define GPIO_AF_TIM13 ((uint8_t)0x09) /* TIM13 Alternate Function mapping */ #define GPIO_AF_TIM14 ((uint8_t)0x09) /* TIM14 Alternate Function mapping */ #define GPIO_AF9_I2C2 ((uint8_t)0x09) /* I2C2 Alternate Function mapping (Only for STM32F401xx Devices) */ #define GPIO_AF9_I2C3 ((uint8_t)0x09) /* I2C3 Alternate Function mapping (Only for STM32F401xx Devices) */ /** * @brief AF 10 selection */ #define GPIO_AF_OTG_FS ((uint8_t)0xA) /* OTG_FS Alternate Function mapping */ #define GPIO_AF_OTG_HS ((uint8_t)0xA) /* OTG_HS Alternate Function mapping */ /** * @brief AF 11 selection */ #define GPIO_AF_ETH ((uint8_t)0x0B) /* ETHERNET Alternate Function mapping */ /** * @brief AF 12 selection */ #if defined (STM32F40_41xxx) #define GPIO_AF_FSMC ((uint8_t)0xC) /* FSMC Alternate Function mapping */ #endif /* STM32F40_41xxx */ #if defined (STM32F427_437xx) || defined (STM32F429_439xx) #define GPIO_AF_FMC ((uint8_t)0xC) /* FMC Alternate Function mapping */ #endif /* STM32F427_437xx || STM32F429_439xx */ #define GPIO_AF_OTG_HS_FS ((uint8_t)0xC) /* OTG HS configured in FS, Alternate Function mapping */ #define GPIO_AF_SDIO ((uint8_t)0xC) /* SDIO Alternate Function mapping */ /** * @brief AF 13 selection */ #define GPIO_AF_DCMI ((uint8_t)0x0D) /* DCMI Alternate Function mapping */ /** * @brief AF 14 selection */ #define GPIO_AF_LTDC ((uint8_t)0x0E) /* LCD-TFT Alternate Function mapping */ /** * @brief AF 15 selection */ #define GPIO_AF_EVENTOUT ((uint8_t)0x0F) /* EVENTOUT Alternate Function mapping */ #if defined (STM32F40_41xxx) #define IS_GPIO_AF(AF) (((AF) == GPIO_AF_RTC_50Hz) || ((AF) == GPIO_AF_TIM14) || \ ((AF) == GPIO_AF_MCO) || ((AF) == GPIO_AF_TAMPER) || \ ((AF) == GPIO_AF_SWJ) || ((AF) == GPIO_AF_TRACE) || \ ((AF) == GPIO_AF_TIM1) || ((AF) == GPIO_AF_TIM2) || \ ((AF) == GPIO_AF_TIM3) || ((AF) == GPIO_AF_TIM4) || \ ((AF) == GPIO_AF_TIM5) || ((AF) == GPIO_AF_TIM8) || \ ((AF) == GPIO_AF_I2C1) || ((AF) == GPIO_AF_I2C2) || \ ((AF) == GPIO_AF_I2C3) || ((AF) == GPIO_AF_SPI1) || \ ((AF) == GPIO_AF_SPI2) || ((AF) == GPIO_AF_TIM13) || \ ((AF) == GPIO_AF_SPI3) || ((AF) == GPIO_AF_TIM14) || \ ((AF) == GPIO_AF_USART1) || ((AF) == GPIO_AF_USART2) || \ ((AF) == GPIO_AF_USART3) || ((AF) == GPIO_AF_UART4) || \ ((AF) == GPIO_AF_UART5) || ((AF) == GPIO_AF_USART6) || \ ((AF) == GPIO_AF_CAN1) || ((AF) == GPIO_AF_CAN2) || \ ((AF) == GPIO_AF_OTG_FS) || ((AF) == GPIO_AF_OTG_HS) || \ ((AF) == GPIO_AF_ETH) || ((AF) == GPIO_AF_OTG_HS_FS) || \ ((AF) == GPIO_AF_SDIO) || ((AF) == GPIO_AF_DCMI) || \ ((AF) == GPIO_AF_EVENTOUT) || ((AF) == GPIO_AF_FSMC)) #endif /* STM32F40_41xxx */ #if defined (STM32F401xx) #define IS_GPIO_AF(AF) (((AF) == GPIO_AF_RTC_50Hz) || ((AF) == GPIO_AF_TIM14) || \ ((AF) == GPIO_AF_MCO) || ((AF) == GPIO_AF_TAMPER) || \ ((AF) == GPIO_AF_SWJ) || ((AF) == GPIO_AF_TRACE) || \ ((AF) == GPIO_AF_TIM1) || ((AF) == GPIO_AF_TIM2) || \ ((AF) == GPIO_AF_TIM3) || ((AF) == GPIO_AF_TIM4) || \ ((AF) == GPIO_AF_TIM5) || ((AF) == GPIO_AF_TIM8) || \ ((AF) == GPIO_AF_I2C1) || ((AF) == GPIO_AF_I2C2) || \ ((AF) == GPIO_AF_I2C3) || ((AF) == GPIO_AF_SPI1) || \ ((AF) == GPIO_AF_SPI2) || ((AF) == GPIO_AF_TIM13) || \ ((AF) == GPIO_AF_SPI3) || ((AF) == GPIO_AF_TIM14) || \ ((AF) == GPIO_AF_USART1) || ((AF) == GPIO_AF_USART2) || \ ((AF) == GPIO_AF_SDIO) || ((AF) == GPIO_AF_USART6) || \ ((AF) == GPIO_AF_OTG_FS) || ((AF) == GPIO_AF_OTG_HS) || \ ((AF) == GPIO_AF_EVENTOUT) || ((AF) == GPIO_AF_SPI4)) #endif /* STM32F401xx */ #if defined (STM32F427_437xx) || defined (STM32F429_439xx) #define IS_GPIO_AF(AF) (((AF) == GPIO_AF_RTC_50Hz) || ((AF) == GPIO_AF_TIM14) || \ ((AF) == GPIO_AF_MCO) || ((AF) == GPIO_AF_TAMPER) || \ ((AF) == GPIO_AF_SWJ) || ((AF) == GPIO_AF_TRACE) || \ ((AF) == GPIO_AF_TIM1) || ((AF) == GPIO_AF_TIM2) || \ ((AF) == GPIO_AF_TIM3) || ((AF) == GPIO_AF_TIM4) || \ ((AF) == GPIO_AF_TIM5) || ((AF) == GPIO_AF_TIM8) || \ ((AF) == GPIO_AF_I2C1) || ((AF) == GPIO_AF_I2C2) || \ ((AF) == GPIO_AF_I2C3) || ((AF) == GPIO_AF_SPI1) || \ ((AF) == GPIO_AF_SPI2) || ((AF) == GPIO_AF_TIM13) || \ ((AF) == GPIO_AF_SPI3) || ((AF) == GPIO_AF_TIM14) || \ ((AF) == GPIO_AF_USART1) || ((AF) == GPIO_AF_USART2) || \ ((AF) == GPIO_AF_USART3) || ((AF) == GPIO_AF_UART4) || \ ((AF) == GPIO_AF_UART5) || ((AF) == GPIO_AF_USART6) || \ ((AF) == GPIO_AF_CAN1) || ((AF) == GPIO_AF_CAN2) || \ ((AF) == GPIO_AF_OTG_FS) || ((AF) == GPIO_AF_OTG_HS) || \ ((AF) == GPIO_AF_ETH) || ((AF) == GPIO_AF_OTG_HS_FS) || \ ((AF) == GPIO_AF_SDIO) || ((AF) == GPIO_AF_DCMI) || \ ((AF) == GPIO_AF_EVENTOUT) || ((AF) == GPIO_AF_SPI4) || \ ((AF) == GPIO_AF_SPI5) || ((AF) == GPIO_AF_SPI6) || \ ((AF) == GPIO_AF_UART7) || ((AF) == GPIO_AF_UART8) || \ ((AF) == GPIO_AF_FMC) || ((AF) == GPIO_AF_SAI1) || \ ((AF) == GPIO_AF_LTDC)) #endif /* STM32F427_437xx || STM32F429_439xx */ /** * @} */ /** @defgroup GPIO_Legacy * @{ */ #define GPIO_Mode_AIN GPIO_Mode_AN #define GPIO_AF_OTG1_FS GPIO_AF_OTG_FS #define GPIO_AF_OTG2_HS GPIO_AF_OTG_HS #define GPIO_AF_OTG2_FS GPIO_AF_OTG_HS_FS /** * @} */ /** * @} */ /* Exported macro ------------------------------------------------------------*/ /* Exported functions --------------------------------------------------------*/ /* Function used to set the GPIO configuration to the default reset state ****/ void GPIO_DeInit(GPIO_TypeDef* GPIOx); /* Initialization and Configuration functions *********************************/ void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct); void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct); void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); /* GPIO Read and Write functions **********************************************/ uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx); uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx); void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal); void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal); void GPIO_ToggleBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin); /* GPIO Alternate functions configuration function ****************************/ void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF); #ifdef __cplusplus } #endif #endif /*__STM32F4xx_GPIO_H */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/