| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840 | /**  ******************************************************************************  * @file    stm32f0xx_hal_i2c.h  * @author  MCD Application Team  * @brief   Header file of I2C HAL module.  ******************************************************************************  * @attention  *  * Copyright (c) 2016 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 STM32F0xx_HAL_I2C_H#define STM32F0xx_HAL_I2C_H#ifdef __cplusplusextern "C" {#endif/* Includes ------------------------------------------------------------------*/#include "stm32f0xx_hal_def.h"/** @addtogroup STM32F0xx_HAL_Driver  * @{  *//** @addtogroup I2C  * @{  *//* Exported types ------------------------------------------------------------*//** @defgroup I2C_Exported_Types I2C Exported Types  * @{  *//** @defgroup I2C_Configuration_Structure_definition I2C Configuration Structure definition  * @brief  I2C Configuration Structure definition  * @{  */typedef struct{  uint32_t Timing;              /*!< Specifies the I2C_TIMINGR_register value.                                     This parameter calculated by referring to I2C initialization section                                     in Reference manual */  uint32_t OwnAddress1;         /*!< Specifies the first device own address.                                     This parameter can be a 7-bit or 10-bit address. */  uint32_t AddressingMode;      /*!< Specifies if 7-bit or 10-bit addressing mode is selected.                                     This parameter can be a value of @ref I2C_ADDRESSING_MODE */  uint32_t DualAddressMode;     /*!< Specifies if dual addressing mode is selected.                                     This parameter can be a value of @ref I2C_DUAL_ADDRESSING_MODE */  uint32_t OwnAddress2;         /*!< Specifies the second device own address if dual addressing mode is selected                                     This parameter can be a 7-bit address. */  uint32_t OwnAddress2Masks;    /*!< Specifies the acknowledge mask address second device own address if dual addressing                                     mode is selected.                                     This parameter can be a value of @ref I2C_OWN_ADDRESS2_MASKS */  uint32_t GeneralCallMode;     /*!< Specifies if general call mode is selected.                                     This parameter can be a value of @ref I2C_GENERAL_CALL_ADDRESSING_MODE */  uint32_t NoStretchMode;       /*!< Specifies if nostretch mode is selected.                                     This parameter can be a value of @ref I2C_NOSTRETCH_MODE */} I2C_InitTypeDef;/**  * @}  *//** @defgroup HAL_state_structure_definition HAL state structure definition  * @brief  HAL State structure definition  * @note  HAL I2C State value coding follow below described bitmap :\n  *          b7-b6  Error information\n  *             00 : No Error\n  *             01 : Abort (Abort user request on going)\n  *             10 : Timeout\n  *             11 : Error\n  *          b5     Peripheral initialization status\n  *             0  : Reset (peripheral not initialized)\n  *             1  : Init done (peripheral initialized and ready to use. HAL I2C Init function called)\n  *          b4     (not used)\n  *             x  : Should be set to 0\n  *          b3\n  *             0  : Ready or Busy (No Listen mode ongoing)\n  *             1  : Listen (peripheral in Address Listen Mode)\n  *          b2     Intrinsic process state\n  *             0  : Ready\n  *             1  : Busy (peripheral busy with some configuration or internal operations)\n  *          b1     Rx state\n  *             0  : Ready (no Rx operation ongoing)\n  *             1  : Busy (Rx operation ongoing)\n  *          b0     Tx state\n  *             0  : Ready (no Tx operation ongoing)\n  *             1  : Busy (Tx operation ongoing)  * @{  */typedef enum{  HAL_I2C_STATE_RESET             = 0x00U,   /*!< Peripheral is not yet Initialized         */  HAL_I2C_STATE_READY             = 0x20U,   /*!< Peripheral Initialized and ready for use  */  HAL_I2C_STATE_BUSY              = 0x24U,   /*!< An internal process is ongoing            */  HAL_I2C_STATE_BUSY_TX           = 0x21U,   /*!< Data Transmission process is ongoing      */  HAL_I2C_STATE_BUSY_RX           = 0x22U,   /*!< Data Reception process is ongoing         */  HAL_I2C_STATE_LISTEN            = 0x28U,   /*!< Address Listen Mode is ongoing            */  HAL_I2C_STATE_BUSY_TX_LISTEN    = 0x29U,   /*!< Address Listen Mode and Data Transmission                                                 process is ongoing                         */  HAL_I2C_STATE_BUSY_RX_LISTEN    = 0x2AU,   /*!< Address Listen Mode and Data Reception                                                 process is ongoing                         */  HAL_I2C_STATE_ABORT             = 0x60U,   /*!< Abort user request ongoing                */  HAL_I2C_STATE_TIMEOUT           = 0xA0U,   /*!< Timeout state                             */  HAL_I2C_STATE_ERROR             = 0xE0U    /*!< Error                                     */} HAL_I2C_StateTypeDef;/**  * @}  *//** @defgroup HAL_mode_structure_definition HAL mode structure definition  * @brief  HAL Mode structure definition  * @note  HAL I2C Mode value coding follow below described bitmap :\n  *          b7     (not used)\n  *             x  : Should be set to 0\n  *          b6\n  *             0  : None\n  *             1  : Memory (HAL I2C communication is in Memory Mode)\n  *          b5\n  *             0  : None\n  *             1  : Slave (HAL I2C communication is in Slave Mode)\n  *          b4\n  *             0  : None\n  *             1  : Master (HAL I2C communication is in Master Mode)\n  *          b3-b2-b1-b0  (not used)\n  *             xxxx : Should be set to 0000  * @{  */typedef enum{  HAL_I2C_MODE_NONE               = 0x00U,   /*!< No I2C communication on going             */  HAL_I2C_MODE_MASTER             = 0x10U,   /*!< I2C communication is in Master Mode       */  HAL_I2C_MODE_SLAVE              = 0x20U,   /*!< I2C communication is in Slave Mode        */  HAL_I2C_MODE_MEM                = 0x40U    /*!< I2C communication is in Memory Mode       */} HAL_I2C_ModeTypeDef;/**  * @}  *//** @defgroup I2C_Error_Code_definition I2C Error Code definition  * @brief  I2C Error Code definition  * @{  */#define HAL_I2C_ERROR_NONE      (0x00000000U)    /*!< No error              */#define HAL_I2C_ERROR_BERR      (0x00000001U)    /*!< BERR error            */#define HAL_I2C_ERROR_ARLO      (0x00000002U)    /*!< ARLO error            */#define HAL_I2C_ERROR_AF        (0x00000004U)    /*!< ACKF error            */#define HAL_I2C_ERROR_OVR       (0x00000008U)    /*!< OVR error             */#define HAL_I2C_ERROR_DMA       (0x00000010U)    /*!< DMA transfer error    */#define HAL_I2C_ERROR_TIMEOUT   (0x00000020U)    /*!< Timeout error         */#define HAL_I2C_ERROR_SIZE      (0x00000040U)    /*!< Size Management error */#define HAL_I2C_ERROR_DMA_PARAM (0x00000080U)    /*!< DMA Parameter Error   */#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)#define HAL_I2C_ERROR_INVALID_CALLBACK  (0x00000100U)    /*!< Invalid Callback error */#endif /* USE_HAL_I2C_REGISTER_CALLBACKS */#define HAL_I2C_ERROR_INVALID_PARAM     (0x00000200U)    /*!< Invalid Parameters error  *//**  * @}  *//** @defgroup I2C_handle_Structure_definition I2C handle Structure definition  * @brief  I2C handle Structure definition  * @{  */typedef struct __I2C_HandleTypeDef{  I2C_TypeDef                *Instance;      /*!< I2C registers base address                */  I2C_InitTypeDef            Init;           /*!< I2C communication parameters              */  uint8_t                    *pBuffPtr;      /*!< Pointer to I2C transfer buffer            */  uint16_t                   XferSize;       /*!< I2C transfer size                         */  __IO uint16_t              XferCount;      /*!< I2C transfer counter                      */  __IO uint32_t              XferOptions;    /*!< I2C sequantial transfer options, this parameter can                                                  be a value of @ref I2C_XFEROPTIONS */  __IO uint32_t              PreviousState;  /*!< I2C communication Previous state          */  HAL_StatusTypeDef(*XferISR)(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources);  /*!< I2C transfer IRQ handler function pointer */  DMA_HandleTypeDef          *hdmatx;        /*!< I2C Tx DMA handle parameters              */  DMA_HandleTypeDef          *hdmarx;        /*!< I2C Rx DMA handle parameters              */  HAL_LockTypeDef            Lock;           /*!< I2C locking object                        */  __IO HAL_I2C_StateTypeDef  State;          /*!< I2C communication state                   */  __IO HAL_I2C_ModeTypeDef   Mode;           /*!< I2C communication mode                    */  __IO uint32_t              ErrorCode;      /*!< I2C Error code                            */  __IO uint32_t              AddrEventCount; /*!< I2C Address Event counter                 */  __IO uint32_t              Devaddress;     /*!< I2C Target device address                 */  __IO uint32_t              Memaddress;     /*!< I2C Target memory address                 */#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)  void (* MasterTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Master Tx Transfer completed callback */  void (* MasterRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Master Rx Transfer completed callback */  void (* SlaveTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Slave Tx Transfer completed callback  */  void (* SlaveRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Slave Rx Transfer completed callback  */  void (* ListenCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Listen Complete callback              */  void (* MemTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Memory Tx Transfer completed callback */  void (* MemRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Memory Rx Transfer completed callback */  void (* ErrorCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Error callback                        */  void (* AbortCpltCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Abort callback                        */  void (* AddrCallback)(struct __I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);  /*!< I2C Slave Address Match callback */  void (* MspInitCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Msp Init callback                     */  void (* MspDeInitCallback)(struct __I2C_HandleTypeDef *hi2c);  /*!< I2C Msp DeInit callback                   */#endif  /* USE_HAL_I2C_REGISTER_CALLBACKS */} I2C_HandleTypeDef;#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)/**  * @brief  HAL I2C Callback ID enumeration definition  */typedef enum{  HAL_I2C_MASTER_TX_COMPLETE_CB_ID      = 0x00U,    /*!< I2C Master Tx Transfer completed callback ID  */  HAL_I2C_MASTER_RX_COMPLETE_CB_ID      = 0x01U,    /*!< I2C Master Rx Transfer completed callback ID  */  HAL_I2C_SLAVE_TX_COMPLETE_CB_ID       = 0x02U,    /*!< I2C Slave Tx Transfer completed callback ID   */  HAL_I2C_SLAVE_RX_COMPLETE_CB_ID       = 0x03U,    /*!< I2C Slave Rx Transfer completed callback ID   */  HAL_I2C_LISTEN_COMPLETE_CB_ID         = 0x04U,    /*!< I2C Listen Complete callback ID               */  HAL_I2C_MEM_TX_COMPLETE_CB_ID         = 0x05U,    /*!< I2C Memory Tx Transfer callback ID            */  HAL_I2C_MEM_RX_COMPLETE_CB_ID         = 0x06U,    /*!< I2C Memory Rx Transfer completed callback ID  */  HAL_I2C_ERROR_CB_ID                   = 0x07U,    /*!< I2C Error callback ID                         */  HAL_I2C_ABORT_CB_ID                   = 0x08U,    /*!< I2C Abort callback ID                         */  HAL_I2C_MSPINIT_CB_ID                 = 0x09U,    /*!< I2C Msp Init callback ID                      */  HAL_I2C_MSPDEINIT_CB_ID               = 0x0AU     /*!< I2C Msp DeInit callback ID                    */} HAL_I2C_CallbackIDTypeDef;/**  * @brief  HAL I2C Callback pointer definition  */typedef  void (*pI2C_CallbackTypeDef)(I2C_HandleTypeDef *hi2c);/*!< pointer to an I2C callback function */typedef  void (*pI2C_AddrCallbackTypeDef)(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection,                                          uint16_t AddrMatchCode);/*!< pointer to an I2C Address Match callback function */#endif /* USE_HAL_I2C_REGISTER_CALLBACKS *//**  * @}  *//**  * @}  *//* Exported constants --------------------------------------------------------*//** @defgroup I2C_Exported_Constants I2C Exported Constants  * @{  *//** @defgroup I2C_XFEROPTIONS  I2C Sequential Transfer Options  * @{  */#define I2C_FIRST_FRAME                 ((uint32_t)I2C_SOFTEND_MODE)#define I2C_FIRST_AND_NEXT_FRAME        ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))#define I2C_NEXT_FRAME                  ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))#define I2C_FIRST_AND_LAST_FRAME        ((uint32_t)I2C_AUTOEND_MODE)#define I2C_LAST_FRAME                  ((uint32_t)I2C_AUTOEND_MODE)#define I2C_LAST_FRAME_NO_STOP          ((uint32_t)I2C_SOFTEND_MODE)/* List of XferOptions in usage of : * 1- Restart condition in all use cases (direction change or not) */#define  I2C_OTHER_FRAME                (0x000000AAU)#define  I2C_OTHER_AND_LAST_FRAME       (0x0000AA00U)/**  * @}  *//** @defgroup I2C_ADDRESSING_MODE I2C Addressing Mode  * @{  */#define I2C_ADDRESSINGMODE_7BIT         (0x00000001U)#define I2C_ADDRESSINGMODE_10BIT        (0x00000002U)/**  * @}  *//** @defgroup I2C_DUAL_ADDRESSING_MODE I2C Dual Addressing Mode  * @{  */#define I2C_DUALADDRESS_DISABLE         (0x00000000U)#define I2C_DUALADDRESS_ENABLE          I2C_OAR2_OA2EN/**  * @}  *//** @defgroup I2C_OWN_ADDRESS2_MASKS I2C Own Address2 Masks  * @{  */#define I2C_OA2_NOMASK                  ((uint8_t)0x00U)#define I2C_OA2_MASK01                  ((uint8_t)0x01U)#define I2C_OA2_MASK02                  ((uint8_t)0x02U)#define I2C_OA2_MASK03                  ((uint8_t)0x03U)#define I2C_OA2_MASK04                  ((uint8_t)0x04U)#define I2C_OA2_MASK05                  ((uint8_t)0x05U)#define I2C_OA2_MASK06                  ((uint8_t)0x06U)#define I2C_OA2_MASK07                  ((uint8_t)0x07U)/**  * @}  *//** @defgroup I2C_GENERAL_CALL_ADDRESSING_MODE I2C General Call Addressing Mode  * @{  */#define I2C_GENERALCALL_DISABLE         (0x00000000U)#define I2C_GENERALCALL_ENABLE          I2C_CR1_GCEN/**  * @}  *//** @defgroup I2C_NOSTRETCH_MODE I2C No-Stretch Mode  * @{  */#define I2C_NOSTRETCH_DISABLE           (0x00000000U)#define I2C_NOSTRETCH_ENABLE            I2C_CR1_NOSTRETCH/**  * @}  *//** @defgroup I2C_MEMORY_ADDRESS_SIZE I2C Memory Address Size  * @{  */#define I2C_MEMADD_SIZE_8BIT            (0x00000001U)#define I2C_MEMADD_SIZE_16BIT           (0x00000002U)/**  * @}  *//** @defgroup I2C_XFERDIRECTION I2C Transfer Direction Master Point of View  * @{  */#define I2C_DIRECTION_TRANSMIT          (0x00000000U)#define I2C_DIRECTION_RECEIVE           (0x00000001U)/**  * @}  *//** @defgroup I2C_RELOAD_END_MODE I2C Reload End Mode  * @{  */#define  I2C_RELOAD_MODE                I2C_CR2_RELOAD#define  I2C_AUTOEND_MODE               I2C_CR2_AUTOEND#define  I2C_SOFTEND_MODE               (0x00000000U)/**  * @}  *//** @defgroup I2C_START_STOP_MODE I2C Start or Stop Mode  * @{  */#define  I2C_NO_STARTSTOP               (0x00000000U)#define  I2C_GENERATE_STOP              (uint32_t)(0x80000000U | I2C_CR2_STOP)#define  I2C_GENERATE_START_READ        (uint32_t)(0x80000000U | I2C_CR2_START | I2C_CR2_RD_WRN)#define  I2C_GENERATE_START_WRITE       (uint32_t)(0x80000000U | I2C_CR2_START)/**  * @}  *//** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition  * @brief I2C Interrupt definition  *        Elements values convention: 0xXXXXXXXX  *           - XXXXXXXX  : Interrupt control mask  * @{  */#define I2C_IT_ERRI                     I2C_CR1_ERRIE#define I2C_IT_TCI                      I2C_CR1_TCIE#define I2C_IT_STOPI                    I2C_CR1_STOPIE#define I2C_IT_NACKI                    I2C_CR1_NACKIE#define I2C_IT_ADDRI                    I2C_CR1_ADDRIE#define I2C_IT_RXI                      I2C_CR1_RXIE#define I2C_IT_TXI                      I2C_CR1_TXIE/**  * @}  *//** @defgroup I2C_Flag_definition I2C Flag definition  * @{  */#define I2C_FLAG_TXE                    I2C_ISR_TXE#define I2C_FLAG_TXIS                   I2C_ISR_TXIS#define I2C_FLAG_RXNE                   I2C_ISR_RXNE#define I2C_FLAG_ADDR                   I2C_ISR_ADDR#define I2C_FLAG_AF                     I2C_ISR_NACKF#define I2C_FLAG_STOPF                  I2C_ISR_STOPF#define I2C_FLAG_TC                     I2C_ISR_TC#define I2C_FLAG_TCR                    I2C_ISR_TCR#define I2C_FLAG_BERR                   I2C_ISR_BERR#define I2C_FLAG_ARLO                   I2C_ISR_ARLO#define I2C_FLAG_OVR                    I2C_ISR_OVR#define I2C_FLAG_PECERR                 I2C_ISR_PECERR#define I2C_FLAG_TIMEOUT                I2C_ISR_TIMEOUT#define I2C_FLAG_ALERT                  I2C_ISR_ALERT#define I2C_FLAG_BUSY                   I2C_ISR_BUSY#define I2C_FLAG_DIR                    I2C_ISR_DIR/**  * @}  *//**  * @}  *//* Exported macros -----------------------------------------------------------*//** @defgroup I2C_Exported_Macros I2C Exported Macros  * @{  *//** @brief Reset I2C handle state.  * @param  __HANDLE__ specifies the I2C Handle.  * @retval None  */#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)#define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                do{                                             \                                                                    (__HANDLE__)->State = HAL_I2C_STATE_RESET;  \                                                                    (__HANDLE__)->MspInitCallback = NULL;       \                                                                    (__HANDLE__)->MspDeInitCallback = NULL;     \                                                                  } while(0)#else#define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                ((__HANDLE__)->State = HAL_I2C_STATE_RESET)#endif /* USE_HAL_I2C_REGISTER_CALLBACKS *//** @brief  Enable the specified I2C interrupt.  * @param  __HANDLE__ specifies the I2C Handle.  * @param  __INTERRUPT__ specifies the interrupt source to enable.  *        This parameter can be one of the following values:  *            @arg @ref I2C_IT_ERRI  Errors interrupt enable  *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable  *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable  *            @arg @ref I2C_IT_NACKI NACK received interrupt enable  *            @arg @ref I2C_IT_ADDRI Address match interrupt enable  *            @arg @ref I2C_IT_RXI   RX interrupt enable  *            @arg @ref I2C_IT_TXI   TX interrupt enable  *  * @retval None  */#define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__)          ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__))/** @brief  Disable the specified I2C interrupt.  * @param  __HANDLE__ specifies the I2C Handle.  * @param  __INTERRUPT__ specifies the interrupt source to disable.  *        This parameter can be one of the following values:  *            @arg @ref I2C_IT_ERRI  Errors interrupt enable  *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable  *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable  *            @arg @ref I2C_IT_NACKI NACK received interrupt enable  *            @arg @ref I2C_IT_ADDRI Address match interrupt enable  *            @arg @ref I2C_IT_RXI   RX interrupt enable  *            @arg @ref I2C_IT_TXI   TX interrupt enable  *  * @retval None  */#define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__)         ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__)))/** @brief  Check whether the specified I2C interrupt source is enabled or not.  * @param  __HANDLE__ specifies the I2C Handle.  * @param  __INTERRUPT__ specifies the I2C interrupt source to check.  *          This parameter can be one of the following values:  *            @arg @ref I2C_IT_ERRI  Errors interrupt enable  *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable  *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable  *            @arg @ref I2C_IT_NACKI NACK received interrupt enable  *            @arg @ref I2C_IT_ADDRI Address match interrupt enable  *            @arg @ref I2C_IT_RXI   RX interrupt enable  *            @arg @ref I2C_IT_TXI   TX interrupt enable  *  * @retval The new state of __INTERRUPT__ (SET or RESET).  */#define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__)      ((((__HANDLE__)->Instance->CR1 & \                                                                   (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)/** @brief  Check whether the specified I2C flag is set or not.  * @param  __HANDLE__ specifies the I2C Handle.  * @param  __FLAG__ specifies the flag to check.  *        This parameter can be one of the following values:  *            @arg @ref I2C_FLAG_TXE     Transmit data register empty  *            @arg @ref I2C_FLAG_TXIS    Transmit interrupt status  *            @arg @ref I2C_FLAG_RXNE    Receive data register not empty  *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)  *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag  *            @arg @ref I2C_FLAG_STOPF   STOP detection flag  *            @arg @ref I2C_FLAG_TC      Transfer complete (master mode)  *            @arg @ref I2C_FLAG_TCR     Transfer complete reload  *            @arg @ref I2C_FLAG_BERR    Bus error  *            @arg @ref I2C_FLAG_ARLO    Arbitration lost  *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun  *            @arg @ref I2C_FLAG_PECERR  PEC error in reception  *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag  *            @arg @ref I2C_FLAG_ALERT   SMBus alert  *            @arg @ref I2C_FLAG_BUSY    Bus busy  *            @arg @ref I2C_FLAG_DIR     Transfer direction (slave mode)  *  * @retval The new state of __FLAG__ (SET or RESET).  */#define I2C_FLAG_MASK  (0x0001FFFFU)#define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) (((((__HANDLE__)->Instance->ISR) & \                                                    (__FLAG__)) == (__FLAG__)) ? SET : RESET)/** @brief  Clear the I2C pending flags which are cleared by writing 1 in a specific bit.  * @param  __HANDLE__ specifies the I2C Handle.  * @param  __FLAG__ specifies the flag to clear.  *          This parameter can be any combination of the following values:  *            @arg @ref I2C_FLAG_TXE     Transmit data register empty  *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)  *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag  *            @arg @ref I2C_FLAG_STOPF   STOP detection flag  *            @arg @ref I2C_FLAG_BERR    Bus error  *            @arg @ref I2C_FLAG_ARLO    Arbitration lost  *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun  *            @arg @ref I2C_FLAG_PECERR  PEC error in reception  *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag  *            @arg @ref I2C_FLAG_ALERT   SMBus alert  *  * @retval None  */#define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) (((__FLAG__) == I2C_FLAG_TXE) ? \                                                    ((__HANDLE__)->Instance->ISR |= (__FLAG__)) : \                                                    ((__HANDLE__)->Instance->ICR = (__FLAG__)))/** @brief  Enable the specified I2C peripheral.  * @param  __HANDLE__ specifies the I2C Handle.  * @retval None  */#define __HAL_I2C_ENABLE(__HANDLE__)                         (SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))/** @brief  Disable the specified I2C peripheral.  * @param  __HANDLE__ specifies the I2C Handle.  * @retval None  */#define __HAL_I2C_DISABLE(__HANDLE__)                        (CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))/** @brief  Generate a Non-Acknowledge I2C peripheral in Slave mode.  * @param  __HANDLE__ specifies the I2C Handle.  * @retval None  */#define __HAL_I2C_GENERATE_NACK(__HANDLE__)                  (SET_BIT((__HANDLE__)->Instance->CR2, I2C_CR2_NACK))/**  * @}  *//* Include I2C HAL Extended module */#include "stm32f0xx_hal_i2c_ex.h"/* Exported functions --------------------------------------------------------*//** @addtogroup I2C_Exported_Functions  * @{  *//** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions  * @{  *//* Initialization and de-initialization functions******************************/HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c);HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c);void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c);void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c);/* Callbacks Register/UnRegister functions  ***********************************/#if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)HAL_StatusTypeDef HAL_I2C_RegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID,                                           pI2C_CallbackTypeDef pCallback);HAL_StatusTypeDef HAL_I2C_UnRegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID);HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback(I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback);HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback(I2C_HandleTypeDef *hi2c);#endif /* USE_HAL_I2C_REGISTER_CALLBACKS *//**  * @}  *//** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions  * @{  *//* IO operation functions  ****************************************************//******* Blocking mode: Polling */HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                          uint16_t Size, uint32_t Timeout);HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                         uint16_t Size, uint32_t Timeout);HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,                                         uint32_t Timeout);HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,                                        uint32_t Timeout);HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,                                    uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,                                   uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials,                                        uint32_t Timeout);/******* Non-Blocking mode: Interrupt */HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                             uint16_t Size);HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                            uint16_t Size);HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,                                       uint16_t MemAddSize, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,                                      uint16_t MemAddSize, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                                 uint16_t Size, uint32_t XferOptions);HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                                uint16_t Size, uint32_t XferOptions);HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,                                                uint32_t XferOptions);HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,                                               uint32_t XferOptions);HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c);HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c);HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress);/******* Non-Blocking mode: DMA */HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                              uint16_t Size);HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                             uint16_t Size);HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,                                        uint16_t MemAddSize, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,                                       uint16_t MemAddSize, uint8_t *pData, uint16_t Size);HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                                  uint16_t Size, uint32_t XferOptions);HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,                                                 uint16_t Size, uint32_t XferOptions);HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,                                                 uint32_t XferOptions);HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,                                                uint32_t XferOptions);/**  * @}  *//** @addtogroup I2C_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks  * @{  *//******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c);void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c);void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c);void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c);/**  * @}  *//** @addtogroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions  * @{  *//* Peripheral State, Mode and Error functions  *********************************/HAL_I2C_StateTypeDef HAL_I2C_GetState(const I2C_HandleTypeDef *hi2c);HAL_I2C_ModeTypeDef  HAL_I2C_GetMode(const I2C_HandleTypeDef *hi2c);uint32_t             HAL_I2C_GetError(const I2C_HandleTypeDef *hi2c);/**  * @}  *//**  * @}  *//* Private constants ---------------------------------------------------------*//** @defgroup I2C_Private_Constants I2C Private Constants  * @{  *//**  * @}  *//* Private macros ------------------------------------------------------------*//** @defgroup I2C_Private_Macro I2C Private Macros  * @{  */#define IS_I2C_ADDRESSING_MODE(MODE)    (((MODE) == I2C_ADDRESSINGMODE_7BIT) || \                                         ((MODE) == I2C_ADDRESSINGMODE_10BIT))#define IS_I2C_DUAL_ADDRESS(ADDRESS)    (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \                                         ((ADDRESS) == I2C_DUALADDRESS_ENABLE))#define IS_I2C_OWN_ADDRESS2_MASK(MASK)  (((MASK) == I2C_OA2_NOMASK)  || \                                         ((MASK) == I2C_OA2_MASK01) || \                                         ((MASK) == I2C_OA2_MASK02) || \                                         ((MASK) == I2C_OA2_MASK03) || \                                         ((MASK) == I2C_OA2_MASK04) || \                                         ((MASK) == I2C_OA2_MASK05) || \                                         ((MASK) == I2C_OA2_MASK06) || \                                         ((MASK) == I2C_OA2_MASK07))#define IS_I2C_GENERAL_CALL(CALL)       (((CALL) == I2C_GENERALCALL_DISABLE) || \                                         ((CALL) == I2C_GENERALCALL_ENABLE))#define IS_I2C_NO_STRETCH(STRETCH)      (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \                                         ((STRETCH) == I2C_NOSTRETCH_ENABLE))#define IS_I2C_MEMADD_SIZE(SIZE)        (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \                                         ((SIZE) == I2C_MEMADD_SIZE_16BIT))#define IS_TRANSFER_MODE(MODE)          (((MODE) == I2C_RELOAD_MODE)   || \                                         ((MODE) == I2C_AUTOEND_MODE) || \                                         ((MODE) == I2C_SOFTEND_MODE))#define IS_TRANSFER_REQUEST(REQUEST)    (((REQUEST) == I2C_GENERATE_STOP)        || \                                         ((REQUEST) == I2C_GENERATE_START_READ)  || \                                         ((REQUEST) == I2C_GENERATE_START_WRITE) || \                                         ((REQUEST) == I2C_NO_STARTSTOP))#define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST)  (((REQUEST) == I2C_FIRST_FRAME)          || \                                                   ((REQUEST) == I2C_FIRST_AND_NEXT_FRAME) || \                                                   ((REQUEST) == I2C_NEXT_FRAME)           || \                                                   ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || \                                                   ((REQUEST) == I2C_LAST_FRAME)           || \                                                   ((REQUEST) == I2C_LAST_FRAME_NO_STOP)   || \                                                   IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST))#define IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_OTHER_FRAME)     || \                                                        ((REQUEST) == I2C_OTHER_AND_LAST_FRAME))#define I2C_RESET_CR2(__HANDLE__)                 ((__HANDLE__)->Instance->CR2 &= \                                                   (uint32_t)~((uint32_t)(I2C_CR2_SADD   | I2C_CR2_HEAD10R | \                                                                          I2C_CR2_NBYTES | I2C_CR2_RELOAD  | \                                                                          I2C_CR2_RD_WRN)))#define I2C_GET_ADDR_MATCH(__HANDLE__)            ((uint16_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_ADDCODE) \                                                              >> 16U))#define I2C_GET_DIR(__HANDLE__)                   ((uint8_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_DIR) \                                                             >> 16U))#define I2C_GET_STOP_MODE(__HANDLE__)             ((__HANDLE__)->Instance->CR2 & I2C_CR2_AUTOEND)#define I2C_GET_OWN_ADDRESS1(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR1 & I2C_OAR1_OA1))#define I2C_GET_OWN_ADDRESS2(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR2 & I2C_OAR2_OA2))#define IS_I2C_OWN_ADDRESS1(ADDRESS1)             ((ADDRESS1) <= 0x000003FFU)#define IS_I2C_OWN_ADDRESS2(ADDRESS2)             ((ADDRESS2) <= (uint16_t)0x00FFU)#define I2C_MEM_ADD_MSB(__ADDRESS__)              ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & \                                                                         (uint16_t)(0xFF00U))) >> 8U)))#define I2C_MEM_ADD_LSB(__ADDRESS__)              ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FFU))))#define I2C_GENERATE_START(__ADDMODE__,__ADDRESS__) (((__ADDMODE__) == I2C_ADDRESSINGMODE_7BIT) ? \                                                     (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | \                                                                 (I2C_CR2_START) | (I2C_CR2_AUTOEND)) & \                                                                (~I2C_CR2_RD_WRN)) : \                                                     (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | \                                                                 (I2C_CR2_ADD10) | (I2C_CR2_START) | \                                                                 (I2C_CR2_AUTOEND)) & (~I2C_CR2_RD_WRN)))#define I2C_CHECK_FLAG(__ISR__, __FLAG__)         ((((__ISR__) & ((__FLAG__) & I2C_FLAG_MASK)) == \                                                    ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET)#define I2C_CHECK_IT_SOURCE(__CR1__, __IT__)      ((((__CR1__) & (__IT__)) == (__IT__)) ? SET : RESET)/**  * @}  *//* Private Functions ---------------------------------------------------------*//** @defgroup I2C_Private_Functions I2C Private Functions  * @{  *//* Private functions are defined in stm32f0xx_hal_i2c.c file *//**  * @}  *//**  * @}  *//**  * @}  */#ifdef __cplusplus}#endif#endif /* STM32F0xx_HAL_I2C_H */
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