text: /**
    ******************************************************************************
    * @file    stm32l0xx_hal_i2c.h
    * @author  MCD Application Team
    * @version V1.2.0
    * @date    06-February-2015
    * @brief   Header file of I2C HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions of source code must retain the above copyright notice,
    *      this list of conditions and the following disclaimer.
    *   2. Redistributions in binary form must reproduce the above copyright notice,
    *      this list of conditions and the following disclaimer in the documentation
    *      and/or other materials provided with the distribution.
    *   3. Neither the name of STMicroelectronics nor the names of its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
    * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************
    */ 
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32L0xx_HAL_I2C_H
  #define __STM32L0xx_HAL_I2C_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32l0xx_hal_def.h"  
  
  /** @addtogroup STM32L0xx_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 acknoledge 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  
    * @{
    */ 
  
  typedef enum
  {
    HAL_I2C_STATE_RESET           = 0x00,  /*!< I2C not yet initialized or disabled         */
    HAL_I2C_STATE_READY           = 0x01,  /*!< I2C initialized and ready for use           */
    HAL_I2C_STATE_BUSY            = 0x02,  /*!< I2C internal process is ongoing             */
    HAL_I2C_STATE_MASTER_BUSY_TX  = 0x12,  /*!< Master Data Transmission process is ongoing */
    HAL_I2C_STATE_MASTER_BUSY_RX  = 0x22,  /*!< Master Data Reception process is ongoing    */
    HAL_I2C_STATE_SLAVE_BUSY_TX   = 0x32,  /*!< Slave Data Transmission process is ongoing  */
    HAL_I2C_STATE_SLAVE_BUSY_RX   = 0x42,  /*!< Slave Data Reception process is ongoing     */
    HAL_I2C_STATE_MEM_BUSY_TX     = 0x52,  /*!< Memory Data Transmission process is ongoing */
    HAL_I2C_STATE_MEM_BUSY_RX     = 0x62,  /*!< Memory Data Reception process is ongoing    */
    HAL_I2C_STATE_TIMEOUT         = 0x03,  /*!< Timeout state                               */
    HAL_I2C_STATE_ERROR           = 0x04   /*!< Reception process is ongoing                */
  }HAL_I2C_StateTypeDef;
  
  /** 
    * @}
    */
  
  /** @defgroup I2C_Error_Code I2C Error Code 
    * @brief  I2C Error Code
    * @{
    */ 
  #define HAL_I2C_ERROR_NONE    0x00 /*!< No error              */
  #define HAL_I2C_ERROR_BERR    0x01 /*!< BERR error            */
  #define HAL_I2C_ERROR_ARLO    0x02 /*!< ARLO error            */
  #define HAL_I2C_ERROR_AF      0x04 /*!< ACKF error            */
  #define HAL_I2C_ERROR_OVR     0x08 /*!< OVR error             */
  #define HAL_I2C_ERROR_DMA     0x10 /*!< DMA transfer error    */
  #define HAL_I2C_ERROR_TIMEOUT 0x20 /*!< Timeout error         */
  #define HAL_I2C_ERROR_SIZE    0x40 /*!< Size Management error */
  /** 
    * @}
    */
  
  /** @defgroup I2C_handle_Structure_definition I2C handle Structure definition 
    * @brief  I2C handle Structure definition  
    * @{
    */
  typedef struct
  {
    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               */
                                                                                   
    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 uint32_t  ErrorCode;              /*!< I2C Error code, see I2C_Error_Code */
  
  }I2C_HandleTypeDef;
  /**
    * @}
    */
  
  /**
    * @}
    */  
  /* Exported constants --------------------------------------------------------*/
  
  /** @defgroup I2C_Exported_Constants I2C Exported Constants
    * @{
    */
  
  /** @defgroup I2C_addressing_mode I2C addressing mode
    * @{
    */
  #define I2C_ADDRESSINGMODE_7BIT          ((uint32_t)0x00000001)
  #define I2C_ADDRESSINGMODE_10BIT         ((uint32_t)0x00000002)
  /**
    * @}
    */
  
  /** @defgroup I2C_dual_addressing_mode I2C dual addressing mode
    * @{
    */
  #define I2C_DUALADDRESS_DISABLE        ((uint32_t)0x00000000)
  #define I2C_DUALADDRESS_ENABLE         I2C_OAR2_OA2EN
  /**
    * @}
    */
  
  /** @defgroup I2C_own_address2_masks I2C own address2 masks
    * @{
    */
  #define I2C_OA2_NOMASK                  ((uint8_t)0x00)
  #define I2C_OA2_MASK01                  ((uint8_t)0x01)
  #define I2C_OA2_MASK02                  ((uint8_t)0x02)
  #define I2C_OA2_MASK03                  ((uint8_t)0x03)
  #define I2C_OA2_MASK04                  ((uint8_t)0x04)
  #define I2C_OA2_MASK05                  ((uint8_t)0x05)
  #define I2C_OA2_MASK06                  ((uint8_t)0x06)
  #define I2C_OA2_MASK07                  ((uint8_t)0x07)
  /**
    * @}
    */
  
  /** @defgroup I2C_general_call_addressing_mode I2C general call addressing mode
    * @{
    */
  #define I2C_GENERALCALL_DISABLE        ((uint32_t)0x00000000)
  #define I2C_GENERALCALL_ENABLE         I2C_CR1_GCEN
  /**
    * @}
    */
  
  /** @defgroup I2C_nostretch_mode I2C nostretch mode
    * @{
    */
  #define I2C_NOSTRETCH_DISABLE          ((uint32_t)0x00000000)
  #define I2C_NOSTRETCH_ENABLE           I2C_CR1_NOSTRETCH
  /**
    * @}
    */
  
  /** @defgroup I2C_Memory_Address_Size I2C Memory Address Size
    * @{
    */
  #define I2C_MEMADD_SIZE_8BIT            ((uint32_t)0x00000001)
  #define I2C_MEMADD_SIZE_16BIT           ((uint32_t)0x00000002)
  /**
    * @}
    */  
    
  /** @defgroup I2C_ReloadEndMode_definition I2C ReloadEndMode definition
    * @{
    */
  #define  I2C_RELOAD_MODE                I2C_CR2_RELOAD
  #define  I2C_AUTOEND_MODE               I2C_CR2_AUTOEND
  #define  I2C_SOFTEND_MODE               ((uint32_t)0x00000000)
  /**
    * @}
    */
  
  /** @defgroup I2C_StartStopMode_definition I2C StartStopMode definition
    * @{
    */
  #define  I2C_NO_STARTSTOP                 ((uint32_t)0x00000000)
  #define  I2C_GENERATE_STOP                I2C_CR2_STOP
  #define  I2C_GENERATE_START_READ          (uint32_t)(I2C_CR2_START | I2C_CR2_RD_WRN)
  #define  I2C_GENERATE_START_WRITE         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
    */
  #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2C_STATE_RESET)
  
  /** @brief  Enable the specified I2C interrupts.
    * @param  __HANDLE__: specifies the I2C Handle.
    * @param  __INTERRUPT__: specifies the interrupt source to enable.
    *        This parameter can be one of the following values:
    *            @arg I2C_IT_ERRI: Errors interrupt enable
    *            @arg I2C_IT_TCI: Transfer complete interrupt enable
    *            @arg I2C_IT_STOPI: STOP detection interrupt enable
    *            @arg I2C_IT_NACKI: NACK received interrupt enable
    *            @arg I2C_IT_ADDRI: Address match interrupt enable
    *            @arg I2C_IT_RXI: RX interrupt enable
    *            @arg I2C_IT_TXI: TX interrupt enable
    *   
    * @retval None
    */
    
  #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__)   ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__))
  
  /** @brief  Disable the specified I2C interrupts.
    * @param  __HANDLE__: specifies the I2C Handle.
    * @param  __INTERRUPT__: specifies the interrupt source to disable.
    *        This parameter can be one of the following values:
    *            @arg I2C_IT_ERRI: Errors interrupt enable
    *            @arg I2C_IT_TCI: Transfer complete interrupt enable
    *            @arg I2C_IT_STOPI: STOP detection interrupt enable
    *            @arg I2C_IT_NACKI: NACK received interrupt enable
    *            @arg I2C_IT_ADDRI: Address match interrupt enable
    *            @arg I2C_IT_RXI: RX interrupt enable
    *            @arg I2C_IT_TXI: TX interrupt enable
    *   
    * @retval None
    */
  #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__)  ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__)))
   
  /** @brief  Checks if the specified I2C interrupt source is enabled or disabled.
    * @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 I2C_IT_ERRI: Errors interrupt enable
    *            @arg I2C_IT_TCI: Transfer complete interrupt enable
    *            @arg I2C_IT_STOPI: STOP detection interrupt enable
    *            @arg I2C_IT_NACKI: NACK received interrupt enable
    *            @arg I2C_IT_ADDRI: Address match interrupt enable
    *            @arg I2C_IT_RXI: RX interrupt enable
    *            @arg I2C_IT_TXI: TX interrupt enable
    *   
    * @retval The new state of __INTERRUPT__ (TRUE or FALSE).
    */
  #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR1 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
  
  /** @brief  Checks 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 I2C_FLAG_TXE:      Transmit data register empty
    *            @arg I2C_FLAG_TXIS:     Transmit interrupt status
    *            @arg I2C_FLAG_RXNE:     Receive data register not empty
    *            @arg I2C_FLAG_ADDR:     Address matched (slave mode)
    *            @arg I2C_FLAG_AF:       Acknowledge failure received flag
    *            @arg I2C_FLAG_STOPF:    STOP detection flag
    *            @arg I2C_FLAG_TC:       Transfer complete (master mode)
    *            @arg I2C_FLAG_TCR:      Transfer complete reload
    *            @arg I2C_FLAG_BERR:     Bus error
    *            @arg I2C_FLAG_ARLO:     Arbitration lost
    *            @arg I2C_FLAG_OVR:      Overrun/Underrun
    *            @arg I2C_FLAG_PECERR:   PEC error in reception
    *            @arg I2C_FLAG_TIMEOUT:  Timeout or Tlow detection flag 
    *            @arg I2C_FLAG_ALERT:    SMBus alert
    *            @arg I2C_FLAG_BUSY:     Bus busy
    *            @arg I2C_FLAG_DIR:      Transfer direction (slave mode)
    *
    * @retval The new state of __FLAG__ (TRUE or FALSE).
    */
  #define I2C_FLAG_MASK  ((uint32_t)0x0001FFFF)
  #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__)                (((((__HANDLE__)->Instance->ISR) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)))
  
  /** @brief  Clears 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 I2C_FLAG_ADDR:    Address matched (slave mode)
    *            @arg I2C_FLAG_AF:      Acknowledge failure received flag
    *            @arg I2C_FLAG_STOPF:   STOP detection flag
    *            @arg I2C_FLAG_BERR:    Bus error
    *            @arg I2C_FLAG_ARLO:    Arbitration lost
    *            @arg I2C_FLAG_OVR:     Overrun/Underrun            
    *            @arg I2C_FLAG_PECERR:  PEC error in reception
    *            @arg I2C_FLAG_TIMEOUT: Timeout or Tlow detection flag 
    *            @arg I2C_FLAG_ALERT:   SMBus alert
    *   
    * @retval None
    */
  #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__)              ((__HANDLE__)->Instance->ICR = ((__FLAG__) & I2C_FLAG_MASK))
   
  /** @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))
  
  /**
    * @}
    */ 
  
  /* Include I2C HAL Extension module */
  #include "stm32l0xx_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);
  /**
    * @}
    */ 
  
  /** @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);
  
   /******* 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);
  /**
    * @}
    */ 
  
  /** @addtogroup 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_MemTxCpltCallback(I2C_HandleTypeDef *hi2c);
  void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c);
  void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c);
  /**
    * @}
    */ 
  
  /** @addtogroup I2C_Exported_Functions_Group3 Peripheral State and Errors functions
    * @{
    */
  /* Peripheral State and Errors functions  *************************************/
  HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c);
  uint32_t             HAL_I2C_GetError(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 __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 IS_I2C_OWN_ADDRESS1(ADDRESS1)   ((ADDRESS1) <= (uint32_t)0x000003FF)
  #define IS_I2C_OWN_ADDRESS2(ADDRESS2)   ((ADDRESS2) <= (uint16_t)0x00FF)
  
  #define __I2C_MEM_ADD_MSB(__ADDRESS__)  ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)(0xFF00))) >> 8)))
  #define __I2C_MEM_ADD_LSB(__ADDRESS__)  ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FF))))
  
  #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_RD_WRN)))
  /**
    * @}
    */ 
  
  /* Private Fonctions ---------------------------------------------------------*/
  /** @defgroup I2C_Private_Functions I2C Private Functions
    * @{
    */
  /* Private functions are defined in stm32l0xx_hal_i2c.c file */
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
    
  #ifdef __cplusplus
  }
  #endif
  
  
  #endif /* __STM32L0xx_HAL_I2C_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  
  