lib/main/STM32H7/Drivers/STM32H7xx_HAL_Driver/Inc/stm32h7xx_hal_i2c.h

   1 /**
   2   ******************************************************************************
   3   * @file    stm32h7xx_hal_i2c.h
   4   * @author  MCD Application Team
   5   * @brief   Header file of I2C HAL module.
   6   ******************************************************************************
   7   * @attention
   8   *
   9   * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
  10   * All rights reserved.</center></h2>
  11   *
  12   * This software component is licensed by ST under BSD 3-Clause license,
  13   * the "License"; You may not use this file except in compliance with the
  14   * License. You may obtain a copy of the License at:
  15   *                        opensource.org/licenses/BSD-3-Clause
  16   *
  17   ******************************************************************************
  18   */
  19
  20 /* Define to prevent recursive inclusion -------------------------------------*/
  21 #ifndef STM32H7xx_HAL_I2C_H
  22 #define STM32H7xx_HAL_I2C_H
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 /* Includes ------------------------------------------------------------------*/
  29 #include "stm32h7xx_hal_def.h"
  30
  31 /** @addtogroup STM32H7xx_HAL_Driver
  32   * @{
  33   */
  34
  35 /** @addtogroup I2C
  36   * @{
  37   */
  38
  39 /* Exported types ------------------------------------------------------------*/
  40 /** @defgroup I2C_Exported_Types I2C Exported Types
  41   * @{
  42   */
  43
  44 /** @defgroup I2C_Configuration_Structure_definition I2C Configuration Structure definition
  45   * @brief  I2C Configuration Structure definition
  46   * @{
  47   */
  48 typedef struct
  49 {
  50   uint32_t Timing;              /*!< Specifies the I2C_TIMINGR_register value.
  51                                   This parameter calculated by referring to I2C initialization
  52                                          section in Reference manual */
  53
  54   uint32_t OwnAddress1;         /*!< Specifies the first device own address.
  55                                   This parameter can be a 7-bit or 10-bit address. */
  56
  57   uint32_t AddressingMode;      /*!< Specifies if 7-bit or 10-bit addressing mode is selected.
  58                                   This parameter can be a value of @ref I2C_ADDRESSING_MODE */
  59
  60   uint32_t DualAddressMode;     /*!< Specifies if dual addressing mode is selected.
  61                                   This parameter can be a value of @ref I2C_DUAL_ADDRESSING_MODE */
  62
  63   uint32_t OwnAddress2;         /*!< Specifies the second device own address if dual addressing mode is selected
  64                                   This parameter can be a 7-bit address. */
  65
  66   uint32_t OwnAddress2Masks;    /*!< Specifies the acknowledge mask address second device own address if dual addressing mode is selected
  67                                   This parameter can be a value of @ref I2C_OWN_ADDRESS2_MASKS */
  68
  69   uint32_t GeneralCallMode;     /*!< Specifies if general call mode is selected.
  70                                   This parameter can be a value of @ref I2C_GENERAL_CALL_ADDRESSING_MODE */
  71
  72   uint32_t NoStretchMode;       /*!< Specifies if nostretch mode is selected.
  73                                   This parameter can be a value of @ref I2C_NOSTRETCH_MODE */
  74
  75 } I2C_InitTypeDef;
  76
  77 /**
  78   * @}
  79   */
  80
  81 /** @defgroup HAL_state_structure_definition HAL state structure definition
  82   * @brief  HAL State structure definition
  83   * @note  HAL I2C State value coding follow below described bitmap :\n
  84   *          b7-b6  Error information\n
  85   *             00 : No Error\n
  86   *             01 : Abort (Abort user request on going)\n
  87   *             10 : Timeout\n
  88   *             11 : Error\n
  89   *          b5     Peripheral initialization status\n
  90   *             0  : Reset (peripheral not initialized)\n
  91   *             1  : Init done (peripheral initialized and ready to use. HAL I2C Init function called)\n
  92   *          b4     (not used)\n
  93   *             x  : Should be set to 0\n
  94   *          b3\n
  95   *             0  : Ready or Busy (No Listen mode ongoing)\n
  96   *             1  : Listen (peripheral in Address Listen Mode)\n
  97   *          b2     Intrinsic process state\n
  98   *             0  : Ready\n
  99   *             1  : Busy (peripheral busy with some configuration or internal operations)\n
 100   *          b1     Rx state\n
 101   *             0  : Ready (no Rx operation ongoing)\n
 102   *             1  : Busy (Rx operation ongoing)\n
 103   *          b0     Tx state\n
 104   *             0  : Ready (no Tx operation ongoing)\n
 105   *             1  : Busy (Tx operation ongoing)
 106   * @{
 107   */
 108 typedef enum
 109 {
 110   HAL_I2C_STATE_RESET             = 0x00U,   /*!< Peripheral is not yet Initialized         */
 111   HAL_I2C_STATE_READY             = 0x20U,   /*!< Peripheral Initialized and ready for use  */
 112   HAL_I2C_STATE_BUSY              = 0x24U,   /*!< An internal process is ongoing            */
 113   HAL_I2C_STATE_BUSY_TX           = 0x21U,   /*!< Data Transmission process is ongoing      */
 114   HAL_I2C_STATE_BUSY_RX           = 0x22U,   /*!< Data Reception process is ongoing         */
 115   HAL_I2C_STATE_LISTEN            = 0x28U,   /*!< Address Listen Mode is ongoing            */
 116   HAL_I2C_STATE_BUSY_TX_LISTEN    = 0x29U,   /*!< Address Listen Mode and Data Transmission
 117                                                  process is ongoing                         */
 118   HAL_I2C_STATE_BUSY_RX_LISTEN    = 0x2AU,   /*!< Address Listen Mode and Data Reception
 119                                                  process is ongoing                         */
 120   HAL_I2C_STATE_ABORT             = 0x60U,   /*!< Abort user request ongoing                */
 121   HAL_I2C_STATE_TIMEOUT           = 0xA0U,   /*!< Timeout state                             */
 122   HAL_I2C_STATE_ERROR             = 0xE0U    /*!< Error                                     */
 123
 124 } HAL_I2C_StateTypeDef;
 125
 126 /**
 127   * @}
 128   */
 129
 130 /** @defgroup HAL_mode_structure_definition HAL mode structure definition
 131   * @brief  HAL Mode structure definition
 132   * @note  HAL I2C Mode value coding follow below described bitmap :\n
 133   *          b7     (not used)\n
 134   *             x  : Should be set to 0\n
 135   *          b6\n
 136   *             0  : None\n
 137   *             1  : Memory (HAL I2C communication is in Memory Mode)\n
 138   *          b5\n
 139   *             0  : None\n
 140   *             1  : Slave (HAL I2C communication is in Slave Mode)\n
 141   *          b4\n
 142   *             0  : None\n
 143   *             1  : Master (HAL I2C communication is in Master Mode)\n
 144   *          b3-b2-b1-b0  (not used)\n
 145   *             xxxx : Should be set to 0000
 146   * @{
 147   */
 148 typedef enum
 149 {
 150   HAL_I2C_MODE_NONE               = 0x00U,   /*!< No I2C communication on going             */
 151   HAL_I2C_MODE_MASTER             = 0x10U,   /*!< I2C communication is in Master Mode       */
 152   HAL_I2C_MODE_SLAVE              = 0x20U,   /*!< I2C communication is in Slave Mode        */
 153   HAL_I2C_MODE_MEM                = 0x40U    /*!< I2C communication is in Memory Mode       */
 154
 155 } HAL_I2C_ModeTypeDef;
 156
 157 /**
 158   * @}
 159   */
 160
 161 /** @defgroup I2C_Error_Code_definition I2C Error Code definition
 162   * @brief  I2C Error Code definition
 163   * @{
 164   */
 165 #define HAL_I2C_ERROR_NONE      (0x00000000U)    /*!< No error              */
 166 #define HAL_I2C_ERROR_BERR      (0x00000001U)    /*!< BERR error            */
 167 #define HAL_I2C_ERROR_ARLO      (0x00000002U)    /*!< ARLO error            */
 168 #define HAL_I2C_ERROR_AF        (0x00000004U)    /*!< ACKF error            */
 169 #define HAL_I2C_ERROR_OVR       (0x00000008U)    /*!< OVR error             */
 170 #define HAL_I2C_ERROR_DMA       (0x00000010U)    /*!< DMA transfer error    */
 171 #define HAL_I2C_ERROR_TIMEOUT   (0x00000020U)    /*!< Timeout error         */
 172 #define HAL_I2C_ERROR_SIZE      (0x00000040U)    /*!< Size Management error */
 173 #define HAL_I2C_ERROR_DMA_PARAM (0x00000080U)    /*!< DMA Parameter Error   */
 174 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
 175 #define HAL_I2C_ERROR_INVALID_CALLBACK  (0x00000100U)    /*!< Invalid Callback error */
 176 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
 177 #define HAL_I2C_ERROR_INVALID_PARAM     (0x00000200U)    /*!< Invalid Parameters error  */
 178 /**
 179   * @}
 180   */
 181
 182 /** @defgroup I2C_handle_Structure_definition I2C handle Structure definition
 183   * @brief  I2C handle Structure definition
 184   * @{
 185   */
 186 typedef struct __I2C_HandleTypeDef
 187 {
 188   I2C_TypeDef                *Instance;      /*!< I2C registers base address                */
 189
 190   I2C_InitTypeDef            Init;           /*!< I2C communication parameters              */
 191
 192   uint8_t                    *pBuffPtr;      /*!< Pointer to I2C transfer buffer            */
 193
 194   uint16_t                   XferSize;       /*!< I2C transfer size                         */
 195
 196   __IO uint16_t              XferCount;      /*!< I2C transfer counter                      */
 197
 198   __IO uint32_t              XferOptions;    /*!< I2C sequantial transfer options, this parameter can
 199                                                   be a value of @ref I2C_XFEROPTIONS */
 200
 201   __IO uint32_t              PreviousState;  /*!< I2C communication Previous state          */
 202
 203   HAL_StatusTypeDef(*XferISR)(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources);  /*!< I2C transfer IRQ handler function pointer */
 204
 205   DMA_HandleTypeDef          *hdmatx;        /*!< I2C Tx DMA handle parameters              */
 206
 207   DMA_HandleTypeDef          *hdmarx;        /*!< I2C Rx DMA handle parameters              */
 208
 209   HAL_LockTypeDef            Lock;           /*!< I2C locking object                        */
 210
 211   __IO HAL_I2C_StateTypeDef  State;          /*!< I2C communication state                   */
 212
 213   __IO HAL_I2C_ModeTypeDef   Mode;           /*!< I2C communication mode                    */
 214
 215   __IO uint32_t              ErrorCode;      /*!< I2C Error code                            */
 216
 217   __IO uint32_t              AddrEventCount; /*!< I2C Address Event counter                 */
 218
 219 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
 220   void (* MasterTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);           /*!< I2C Master Tx Transfer completed callback */
 221   void (* MasterRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);           /*!< I2C Master Rx Transfer completed callback */
 222   void (* SlaveTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);            /*!< I2C Slave Tx Transfer completed callback  */
 223   void (* SlaveRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);            /*!< I2C Slave Rx Transfer completed callback  */
 224   void (* ListenCpltCallback)(struct __I2C_HandleTypeDef *hi2c);             /*!< I2C Listen Complete callback              */
 225   void (* MemTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Memory Tx Transfer completed callback */
 226   void (* MemRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Memory Rx Transfer completed callback */
 227   void (* ErrorCallback)(struct __I2C_HandleTypeDef *hi2c);                  /*!< I2C Error callback                        */
 228   void (* AbortCpltCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Abort callback                        */
 229
 230   void (* AddrCallback)(struct __I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);  /*!< I2C Slave Address Match callback */
 231
 232   void (* MspInitCallback)(struct __I2C_HandleTypeDef *hi2c);                /*!< I2C Msp Init callback                     */
 233   void (* MspDeInitCallback)(struct __I2C_HandleTypeDef *hi2c);              /*!< I2C Msp DeInit callback                   */
 234
 235 #endif  /* USE_HAL_I2C_REGISTER_CALLBACKS */
 236 } I2C_HandleTypeDef;
 237
 238 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
 239 /**
 240   * @brief  HAL I2C Callback ID enumeration definition
 241   */
 242 typedef enum
 243 {
 244   HAL_I2C_MASTER_TX_COMPLETE_CB_ID      = 0x00U,    /*!< I2C Master Tx Transfer completed callback ID  */
 245   HAL_I2C_MASTER_RX_COMPLETE_CB_ID      = 0x01U,    /*!< I2C Master Rx Transfer completed callback ID  */
 246   HAL_I2C_SLAVE_TX_COMPLETE_CB_ID       = 0x02U,    /*!< I2C Slave Tx Transfer completed callback ID   */
 247   HAL_I2C_SLAVE_RX_COMPLETE_CB_ID       = 0x03U,    /*!< I2C Slave Rx Transfer completed callback ID   */
 248   HAL_I2C_LISTEN_COMPLETE_CB_ID         = 0x04U,    /*!< I2C Listen Complete callback ID               */
 249   HAL_I2C_MEM_TX_COMPLETE_CB_ID         = 0x05U,    /*!< I2C Memory Tx Transfer callback ID            */
 250   HAL_I2C_MEM_RX_COMPLETE_CB_ID         = 0x06U,    /*!< I2C Memory Rx Transfer completed callback ID  */
 251   HAL_I2C_ERROR_CB_ID                   = 0x07U,    /*!< I2C Error callback ID                         */
 252   HAL_I2C_ABORT_CB_ID                   = 0x08U,    /*!< I2C Abort callback ID                         */
 253
 254   HAL_I2C_MSPINIT_CB_ID                 = 0x09U,    /*!< I2C Msp Init callback ID                      */
 255   HAL_I2C_MSPDEINIT_CB_ID               = 0x0AU     /*!< I2C Msp DeInit callback ID                    */
 256
 257 } HAL_I2C_CallbackIDTypeDef;
 258
 259 /**
 260   * @brief  HAL I2C Callback pointer definition
 261   */
 262 typedef  void (*pI2C_CallbackTypeDef)(I2C_HandleTypeDef *hi2c); /*!< pointer to an I2C callback function */
 263 typedef  void (*pI2C_AddrCallbackTypeDef)(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); /*!< pointer to an I2C Address Match callback function */
 264
 265 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
 266 /**
 267   * @}
 268   */
 269
 270 /**
 271   * @}
 272   */
 273 /* Exported constants --------------------------------------------------------*/
 274
 275 /** @defgroup I2C_Exported_Constants I2C Exported Constants
 276   * @{
 277   */
 278
 279 /** @defgroup I2C_XFEROPTIONS  I2C Sequential Transfer Options
 280   * @{
 281   */
 282 #define I2C_FIRST_FRAME                 ((uint32_t)I2C_SOFTEND_MODE)
 283 #define I2C_FIRST_AND_NEXT_FRAME        ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))
 284 #define I2C_NEXT_FRAME                  ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))
 285 #define I2C_FIRST_AND_LAST_FRAME        ((uint32_t)I2C_AUTOEND_MODE)
 286 #define I2C_LAST_FRAME                  ((uint32_t)I2C_AUTOEND_MODE)
 287 #define I2C_LAST_FRAME_NO_STOP          ((uint32_t)I2C_SOFTEND_MODE)
 288
 289 /* List of XferOptions in usage of :
 290  * 1- Restart condition in all use cases (direction change or not)
 291  */
 292 #define  I2C_OTHER_FRAME                (0x000000AAU)
 293 #define  I2C_OTHER_AND_LAST_FRAME       (0x0000AA00U)
 294 /**
 295   * @}
 296   */
 297
 298 /** @defgroup I2C_ADDRESSING_MODE I2C Addressing Mode
 299   * @{
 300   */
 301 #define I2C_ADDRESSINGMODE_7BIT         (0x00000001U)
 302 #define I2C_ADDRESSINGMODE_10BIT        (0x00000002U)
 303 /**
 304   * @}
 305   */
 306
 307 /** @defgroup I2C_DUAL_ADDRESSING_MODE I2C Dual Addressing Mode
 308   * @{
 309   */
 310 #define I2C_DUALADDRESS_DISABLE         (0x00000000U)
 311 #define I2C_DUALADDRESS_ENABLE          I2C_OAR2_OA2EN
 312 /**
 313   * @}
 314   */
 315
 316 /** @defgroup I2C_OWN_ADDRESS2_MASKS I2C Own Address2 Masks
 317   * @{
 318   */
 319 #define I2C_OA2_NOMASK                  ((uint8_t)0x00U)
 320 #define I2C_OA2_MASK01                  ((uint8_t)0x01U)
 321 #define I2C_OA2_MASK02                  ((uint8_t)0x02U)
 322 #define I2C_OA2_MASK03                  ((uint8_t)0x03U)
 323 #define I2C_OA2_MASK04                  ((uint8_t)0x04U)
 324 #define I2C_OA2_MASK05                  ((uint8_t)0x05U)
 325 #define I2C_OA2_MASK06                  ((uint8_t)0x06U)
 326 #define I2C_OA2_MASK07                  ((uint8_t)0x07U)
 327 /**
 328   * @}
 329   */
 330
 331 /** @defgroup I2C_GENERAL_CALL_ADDRESSING_MODE I2C General Call Addressing Mode
 332   * @{
 333   */
 334 #define I2C_GENERALCALL_DISABLE         (0x00000000U)
 335 #define I2C_GENERALCALL_ENABLE          I2C_CR1_GCEN
 336 /**
 337   * @}
 338   */
 339
 340 /** @defgroup I2C_NOSTRETCH_MODE I2C No-Stretch Mode
 341   * @{
 342   */
 343 #define I2C_NOSTRETCH_DISABLE           (0x00000000U)
 344 #define I2C_NOSTRETCH_ENABLE            I2C_CR1_NOSTRETCH
 345 /**
 346   * @}
 347   */
 348
 349 /** @defgroup I2C_MEMORY_ADDRESS_SIZE I2C Memory Address Size
 350   * @{
 351   */
 352 #define I2C_MEMADD_SIZE_8BIT            (0x00000001U)
 353 #define I2C_MEMADD_SIZE_16BIT           (0x00000002U)
 354 /**
 355   * @}
 356   */
 357
 358 /** @defgroup I2C_XFERDIRECTION I2C Transfer Direction Master Point of View
 359   * @{
 360   */
 361 #define I2C_DIRECTION_TRANSMIT          (0x00000000U)
 362 #define I2C_DIRECTION_RECEIVE           (0x00000001U)
 363 /**
 364   * @}
 365   */
 366
 367 /** @defgroup I2C_RELOAD_END_MODE I2C Reload End Mode
 368   * @{
 369   */
 370 #define  I2C_RELOAD_MODE                I2C_CR2_RELOAD
 371 #define  I2C_AUTOEND_MODE               I2C_CR2_AUTOEND
 372 #define  I2C_SOFTEND_MODE               (0x00000000U)
 373 /**
 374   * @}
 375   */
 376
 377 /** @defgroup I2C_START_STOP_MODE I2C Start or Stop Mode
 378   * @{
 379   */
 380 #define  I2C_NO_STARTSTOP               (0x00000000U)
 381 #define  I2C_GENERATE_STOP              (uint32_t)(0x80000000U | I2C_CR2_STOP)
 382 #define  I2C_GENERATE_START_READ        (uint32_t)(0x80000000U | I2C_CR2_START | I2C_CR2_RD_WRN)
 383 #define  I2C_GENERATE_START_WRITE       (uint32_t)(0x80000000U | I2C_CR2_START)
 384 /**
 385   * @}
 386   */
 387
 388 /** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition
 389   * @brief I2C Interrupt definition
 390   *        Elements values convention: 0xXXXXXXXX
 391   *           - XXXXXXXX  : Interrupt control mask
 392   * @{
 393   */
 394 #define I2C_IT_ERRI                     I2C_CR1_ERRIE
 395 #define I2C_IT_TCI                      I2C_CR1_TCIE
 396 #define I2C_IT_STOPI                    I2C_CR1_STOPIE
 397 #define I2C_IT_NACKI                    I2C_CR1_NACKIE
 398 #define I2C_IT_ADDRI                    I2C_CR1_ADDRIE
 399 #define I2C_IT_RXI                      I2C_CR1_RXIE
 400 #define I2C_IT_TXI                      I2C_CR1_TXIE
 401 /**
 402   * @}
 403   */
 404
 405 /** @defgroup I2C_Flag_definition I2C Flag definition
 406   * @{
 407   */
 408 #define I2C_FLAG_TXE                    I2C_ISR_TXE
 409 #define I2C_FLAG_TXIS                   I2C_ISR_TXIS
 410 #define I2C_FLAG_RXNE                   I2C_ISR_RXNE
 411 #define I2C_FLAG_ADDR                   I2C_ISR_ADDR
 412 #define I2C_FLAG_AF                     I2C_ISR_NACKF
 413 #define I2C_FLAG_STOPF                  I2C_ISR_STOPF
 414 #define I2C_FLAG_TC                     I2C_ISR_TC
 415 #define I2C_FLAG_TCR                    I2C_ISR_TCR
 416 #define I2C_FLAG_BERR                   I2C_ISR_BERR
 417 #define I2C_FLAG_ARLO                   I2C_ISR_ARLO
 418 #define I2C_FLAG_OVR                    I2C_ISR_OVR
 419 #define I2C_FLAG_PECERR                 I2C_ISR_PECERR
 420 #define I2C_FLAG_TIMEOUT                I2C_ISR_TIMEOUT
 421 #define I2C_FLAG_ALERT                  I2C_ISR_ALERT
 422 #define I2C_FLAG_BUSY                   I2C_ISR_BUSY
 423 #define I2C_FLAG_DIR                    I2C_ISR_DIR
 424 /**
 425   * @}
 426   */
 427
 428 /**
 429   * @}
 430   */
 431
 432 /* Exported macros -----------------------------------------------------------*/
 433
 434 /** @defgroup I2C_Exported_Macros I2C Exported Macros
 435   * @{
 436   */
 437
 438 /** @brief Reset I2C handle state.
 439   * @param  __HANDLE__ specifies the I2C Handle.
 440   * @retval None
 441   */
 442 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
 443 #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                do{                                                   \
 444                                                                     (__HANDLE__)->State = HAL_I2C_STATE_RESET;       \
 445                                                                     (__HANDLE__)->MspInitCallback = NULL;            \
 446                                                                     (__HANDLE__)->MspDeInitCallback = NULL;          \
 447                                                                   } while(0)
 448 #else
 449 #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                ((__HANDLE__)->State = HAL_I2C_STATE_RESET)
 450 #endif
 451
 452 /** @brief  Enable the specified I2C interrupt.
 453   * @param  __HANDLE__ specifies the I2C Handle.
 454   * @param  __INTERRUPT__ specifies the interrupt source to enable.
 455   *        This parameter can be one of the following values:
 456   *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
 457   *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
 458   *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
 459   *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
 460   *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
 461   *            @arg @ref I2C_IT_RXI   RX interrupt enable
 462   *            @arg @ref I2C_IT_TXI   TX interrupt enable
 463   *
 464   * @retval None
 465   */
 466 #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__)          ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__))
 467
 468 /** @brief  Disable the specified I2C interrupt.
 469   * @param  __HANDLE__ specifies the I2C Handle.
 470   * @param  __INTERRUPT__ specifies the interrupt source to disable.
 471   *        This parameter can be one of the following values:
 472   *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
 473   *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
 474   *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
 475   *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
 476   *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
 477   *            @arg @ref I2C_IT_RXI   RX interrupt enable
 478   *            @arg @ref I2C_IT_TXI   TX interrupt enable
 479   *
 480   * @retval None
 481   */
 482 #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__)         ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__)))
 483
 484 /** @brief  Check whether the specified I2C interrupt source is enabled or not.
 485   * @param  __HANDLE__ specifies the I2C Handle.
 486   * @param  __INTERRUPT__ specifies the I2C interrupt source to check.
 487   *          This parameter can be one of the following values:
 488   *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
 489   *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
 490   *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
 491   *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
 492   *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
 493   *            @arg @ref I2C_IT_RXI   RX interrupt enable
 494   *            @arg @ref I2C_IT_TXI   TX interrupt enable
 495   *
 496   * @retval The new state of __INTERRUPT__ (SET or RESET).
 497   */
 498 #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__)      ((((__HANDLE__)->Instance->CR1 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
 499
 500 /** @brief  Check whether the specified I2C flag is set or not.
 501   * @param  __HANDLE__ specifies the I2C Handle.
 502   * @param  __FLAG__ specifies the flag to check.
 503   *        This parameter can be one of the following values:
 504   *            @arg @ref I2C_FLAG_TXE     Transmit data register empty
 505   *            @arg @ref I2C_FLAG_TXIS    Transmit interrupt status
 506   *            @arg @ref I2C_FLAG_RXNE    Receive data register not empty
 507   *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)
 508   *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag
 509   *            @arg @ref I2C_FLAG_STOPF   STOP detection flag
 510   *            @arg @ref I2C_FLAG_TC      Transfer complete (master mode)
 511   *            @arg @ref I2C_FLAG_TCR     Transfer complete reload
 512   *            @arg @ref I2C_FLAG_BERR    Bus error
 513   *            @arg @ref I2C_FLAG_ARLO    Arbitration lost
 514   *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun
 515   *            @arg @ref I2C_FLAG_PECERR  PEC error in reception
 516   *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag
 517   *            @arg @ref I2C_FLAG_ALERT   SMBus alert
 518   *            @arg @ref I2C_FLAG_BUSY    Bus busy
 519   *            @arg @ref I2C_FLAG_DIR     Transfer direction (slave mode)
 520   *
 521   * @retval The new state of __FLAG__ (SET or RESET).
 522   */
 523 #define I2C_FLAG_MASK  (0x0001FFFFU)
 524 #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) (((((__HANDLE__)->Instance->ISR) & (__FLAG__)) == (__FLAG__)) ? SET : RESET)
 525
 526 /** @brief  Clear the I2C pending flags which are cleared by writing 1 in a specific bit.
 527   * @param  __HANDLE__ specifies the I2C Handle.
 528   * @param  __FLAG__ specifies the flag to clear.
 529   *          This parameter can be any combination of the following values:
 530   *            @arg @ref I2C_FLAG_TXE     Transmit data register empty
 531   *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)
 532   *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag
 533   *            @arg @ref I2C_FLAG_STOPF   STOP detection flag
 534   *            @arg @ref I2C_FLAG_BERR    Bus error
 535   *            @arg @ref I2C_FLAG_ARLO    Arbitration lost
 536   *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun
 537   *            @arg @ref I2C_FLAG_PECERR  PEC error in reception
 538   *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag
 539   *            @arg @ref I2C_FLAG_ALERT   SMBus alert
 540   *
 541   * @retval None
 542   */
 543 #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) (((__FLAG__) == I2C_FLAG_TXE) ? ((__HANDLE__)->Instance->ISR |= (__FLAG__)) \
 544                                                                                  : ((__HANDLE__)->Instance->ICR = (__FLAG__)))
 545
 546 /** @brief  Enable the specified I2C peripheral.
 547   * @param  __HANDLE__ specifies the I2C Handle.
 548   * @retval None
 549   */
 550 #define __HAL_I2C_ENABLE(__HANDLE__)                            (SET_BIT((__HANDLE__)->Instance->CR1,  I2C_CR1_PE))
 551
 552 /** @brief  Disable the specified I2C peripheral.
 553   * @param  __HANDLE__ specifies the I2C Handle.
 554   * @retval None
 555   */
 556 #define __HAL_I2C_DISABLE(__HANDLE__)                           (CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
 557
 558 /** @brief  Generate a Non-Acknowledge I2C peripheral in Slave mode.
 559   * @param  __HANDLE__ specifies the I2C Handle.
 560   * @retval None
 561   */
 562 #define __HAL_I2C_GENERATE_NACK(__HANDLE__)                     (SET_BIT((__HANDLE__)->Instance->CR2, I2C_CR2_NACK))
 563 /**
 564   * @}
 565   */
 566
 567 /* Include I2C HAL Extended module */
 568 #include "stm32h7xx_hal_i2c_ex.h"
 569
 570 /* Exported functions --------------------------------------------------------*/
 571 /** @addtogroup I2C_Exported_Functions
 572   * @{
 573   */
 574
 575 /** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions
 576   * @{
 577   */
 578 /* Initialization and de-initialization functions******************************/
 579 HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c);
 580 HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c);
 581 void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c);
 582 void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c);
 583
 584 /* Callbacks Register/UnRegister functions  ***********************************/
 585 #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
 586 HAL_StatusTypeDef HAL_I2C_RegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID, pI2C_CallbackTypeDef pCallback);
 587 HAL_StatusTypeDef HAL_I2C_UnRegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID);
 588
 589 HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback(I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback);
 590 HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback(I2C_HandleTypeDef *hi2c);
 591 #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
 592 /**
 593   * @}
 594   */
 595
 596 /** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions
 597   * @{
 598   */
 599 /* IO operation functions  ****************************************************/
 600 /******* Blocking mode: Polling */
 601 HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout);
 602 HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout);
 603 HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
 604 HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout);
 605 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);
 606 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);
 607 HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout);
 608
 609 /******* Non-Blocking mode: Interrupt */
 610 HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
 611 HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
 612 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
 613 HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
 614 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);
 615 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);
 616
 617 HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 618 HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 619 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 620 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 621 HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c);
 622 HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c);
 623 HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress);
 624
 625 /******* Non-Blocking mode: DMA */
 626 HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
 627 HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size);
 628 HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
 629 HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
 630 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);
 631 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);
 632
 633 HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 634 HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 635 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 636 HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions);
 637 /**
 638   * @}
 639   */
 640
 641 /** @addtogroup I2C_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks
 642  * @{
 643  */
 644 /******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */
 645 void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c);
 646 void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c);
 647 void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c);
 648 void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c);
 649 void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c);
 650 void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c);
 651 void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);
 652 void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c);
 653 void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c);
 654 void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c);
 655 void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c);
 656 void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c);
 657 /**
 658   * @}
 659   */
 660
 661 /** @addtogroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions
 662   * @{
 663   */
 664 /* Peripheral State, Mode and Error functions  *********************************/
 665 HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c);
 666 HAL_I2C_ModeTypeDef  HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c);
 667 uint32_t             HAL_I2C_GetError(I2C_HandleTypeDef *hi2c);
 668
 669 /**
 670   * @}
 671   */
 672
 673 /**
 674   * @}
 675   */
 676
 677 /* Private constants ---------------------------------------------------------*/
 678 /** @defgroup I2C_Private_Constants I2C Private Constants
 679   * @{
 680   */
 681
 682 /**
 683   * @}
 684   */
 685
 686 /* Private macros ------------------------------------------------------------*/
 687 /** @defgroup I2C_Private_Macro I2C Private Macros
 688   * @{
 689   */
 690
 691 #define IS_I2C_ADDRESSING_MODE(MODE)    (((MODE) == I2C_ADDRESSINGMODE_7BIT) || \
 692                                          ((MODE) == I2C_ADDRESSINGMODE_10BIT))
 693
 694 #define IS_I2C_DUAL_ADDRESS(ADDRESS)    (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \
 695                                          ((ADDRESS) == I2C_DUALADDRESS_ENABLE))
 696
 697 #define IS_I2C_OWN_ADDRESS2_MASK(MASK)  (((MASK) == I2C_OA2_NOMASK)  || \
 698                                          ((MASK) == I2C_OA2_MASK01) || \
 699                                          ((MASK) == I2C_OA2_MASK02) || \
 700                                          ((MASK) == I2C_OA2_MASK03) || \
 701                                          ((MASK) == I2C_OA2_MASK04) || \
 702                                          ((MASK) == I2C_OA2_MASK05) || \
 703                                          ((MASK) == I2C_OA2_MASK06) || \
 704                                          ((MASK) == I2C_OA2_MASK07))
 705
 706 #define IS_I2C_GENERAL_CALL(CALL)       (((CALL) == I2C_GENERALCALL_DISABLE) || \
 707                                          ((CALL) == I2C_GENERALCALL_ENABLE))
 708
 709 #define IS_I2C_NO_STRETCH(STRETCH)      (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \
 710                                          ((STRETCH) == I2C_NOSTRETCH_ENABLE))
 711
 712 #define IS_I2C_MEMADD_SIZE(SIZE)        (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \
 713                                          ((SIZE) == I2C_MEMADD_SIZE_16BIT))
 714
 715 #define IS_TRANSFER_MODE(MODE)          (((MODE) == I2C_RELOAD_MODE)   || \
 716                                          ((MODE) == I2C_AUTOEND_MODE) || \
 717                                          ((MODE) == I2C_SOFTEND_MODE))
 718
 719 #define IS_TRANSFER_REQUEST(REQUEST)    (((REQUEST) == I2C_GENERATE_STOP)        || \
 720                                          ((REQUEST) == I2C_GENERATE_START_READ)  || \
 721                                          ((REQUEST) == I2C_GENERATE_START_WRITE) || \
 722                                          ((REQUEST) == I2C_NO_STARTSTOP))
 723
 724 #define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST)  (((REQUEST) == I2C_FIRST_FRAME)          || \
 725                                                    ((REQUEST) == I2C_FIRST_AND_NEXT_FRAME) || \
 726                                                    ((REQUEST) == I2C_NEXT_FRAME)           || \
 727                                                    ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || \
 728                                                    ((REQUEST) == I2C_LAST_FRAME)           || \
 729                                                    ((REQUEST) == I2C_LAST_FRAME_NO_STOP)   || \
 730                                                    IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST))
 731
 732 #define IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_OTHER_FRAME)     || \
 733                                                         ((REQUEST) == I2C_OTHER_AND_LAST_FRAME))
 734
 735 #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)))
 736
 737 #define I2C_GET_ADDR_MATCH(__HANDLE__)            ((uint16_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_ADDCODE) >> 16U))
 738 #define I2C_GET_DIR(__HANDLE__)                   ((uint8_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_DIR) >> 16U))
 739 #define I2C_GET_STOP_MODE(__HANDLE__)             ((__HANDLE__)->Instance->CR2 & I2C_CR2_AUTOEND)
 740 #define I2C_GET_OWN_ADDRESS1(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR1 & I2C_OAR1_OA1))
 741 #define I2C_GET_OWN_ADDRESS2(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR2 & I2C_OAR2_OA2))
 742
 743 #define IS_I2C_OWN_ADDRESS1(ADDRESS1)             ((ADDRESS1) <= 0x000003FFU)
 744 #define IS_I2C_OWN_ADDRESS2(ADDRESS2)             ((ADDRESS2) <= (uint16_t)0x00FFU)
 745
 746 #define I2C_MEM_ADD_MSB(__ADDRESS__)              ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0xFF00U))) >> 8U)))
 747 #define I2C_MEM_ADD_LSB(__ADDRESS__)              ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FFU))))
 748
 749 #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)) : \
 750                                                           (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | (I2C_CR2_ADD10) | (I2C_CR2_START)) & (~I2C_CR2_RD_WRN)))
 751
 752 #define I2C_CHECK_FLAG(__ISR__, __FLAG__)         ((((__ISR__) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET)
 753 #define I2C_CHECK_IT_SOURCE(__CR1__, __IT__)      ((((__CR1__) & (__IT__)) == (__IT__)) ? SET : RESET)
 754 /**
 755   * @}
 756   */
 757
 758 /* Private Functions ---------------------------------------------------------*/
 759 /** @defgroup I2C_Private_Functions I2C Private Functions
 760   * @{
 761   */
 762 /* Private functions are defined in stm32h7xx_hal_i2c.c file */
 763 /**
 764   * @}
 765   */
 766
 767 /**
 768   * @}
 769   */
 770
 771 /**
 772   * @}
 773   */
 774
 775 #ifdef __cplusplus
 776 }
 777 #endif
 778
 779
 780 #endif /* STM32H7xx_HAL_I2C_H */
 781
 782 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/