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  1. /**
  2.   ******************************************************************************
  3.   * @file    stm32f0xx_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) 2016 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 STM32F0xx_HAL_I2C_H
  22. #define STM32F0xx_HAL_I2C_H
  23.  
  24. #ifdef __cplusplus
  25. extern "C" {
  26. #endif
  27.  
  28. /* Includes ------------------------------------------------------------------*/
  29. #include "stm32f0xx_hal_def.h"
  30.  
  31. /** @addtogroup STM32F0xx_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 "stm32f0xx_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 stm32f0xx_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 /* STM32F0xx_HAL_I2C_H */
  781.  
  782. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  783.