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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 section
  52.                                      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
  67.                                      mode is selected.
  68.                                      This parameter can be a value of @ref I2C_OWN_ADDRESS2_MASKS */
  69.  
  70.   uint32_t GeneralCallMode;     /*!< Specifies if general call mode is selected.
  71.                                      This parameter can be a value of @ref I2C_GENERAL_CALL_ADDRESSING_MODE */
  72.  
  73.   uint32_t NoStretchMode;       /*!< Specifies if nostretch mode is selected.
  74.                                      This parameter can be a value of @ref I2C_NOSTRETCH_MODE */
  75.  
  76. } I2C_InitTypeDef;
  77.  
  78. /**
  79.   * @}
  80.   */
  81.  
  82. /** @defgroup HAL_state_structure_definition HAL state structure definition
  83.   * @brief  HAL State structure definition
  84.   * @note  HAL I2C State value coding follow below described bitmap :\n
  85.   *          b7-b6  Error information\n
  86.   *             00 : No Error\n
  87.   *             01 : Abort (Abort user request on going)\n
  88.   *             10 : Timeout\n
  89.   *             11 : Error\n
  90.   *          b5     Peripheral initialization status\n
  91.   *             0  : Reset (peripheral not initialized)\n
  92.   *             1  : Init done (peripheral initialized and ready to use. HAL I2C Init function called)\n
  93.   *          b4     (not used)\n
  94.   *             x  : Should be set to 0\n
  95.   *          b3\n
  96.   *             0  : Ready or Busy (No Listen mode ongoing)\n
  97.   *             1  : Listen (peripheral in Address Listen Mode)\n
  98.   *          b2     Intrinsic process state\n
  99.   *             0  : Ready\n
  100.   *             1  : Busy (peripheral busy with some configuration or internal operations)\n
  101.   *          b1     Rx state\n
  102.   *             0  : Ready (no Rx operation ongoing)\n
  103.   *             1  : Busy (Rx operation ongoing)\n
  104.   *          b0     Tx state\n
  105.   *             0  : Ready (no Tx operation ongoing)\n
  106.   *             1  : Busy (Tx operation ongoing)
  107.   * @{
  108.   */
  109. typedef enum
  110. {
  111.   HAL_I2C_STATE_RESET             = 0x00U,   /*!< Peripheral is not yet Initialized         */
  112.   HAL_I2C_STATE_READY             = 0x20U,   /*!< Peripheral Initialized and ready for use  */
  113.   HAL_I2C_STATE_BUSY              = 0x24U,   /*!< An internal process is ongoing            */
  114.   HAL_I2C_STATE_BUSY_TX           = 0x21U,   /*!< Data Transmission process is ongoing      */
  115.   HAL_I2C_STATE_BUSY_RX           = 0x22U,   /*!< Data Reception process is ongoing         */
  116.   HAL_I2C_STATE_LISTEN            = 0x28U,   /*!< Address Listen Mode is ongoing            */
  117.   HAL_I2C_STATE_BUSY_TX_LISTEN    = 0x29U,   /*!< Address Listen Mode and Data Transmission
  118.                                                  process is ongoing                         */
  119.   HAL_I2C_STATE_BUSY_RX_LISTEN    = 0x2AU,   /*!< Address Listen Mode and Data Reception
  120.                                                  process is ongoing                         */
  121.   HAL_I2C_STATE_ABORT             = 0x60U,   /*!< Abort user request ongoing                */
  122.   HAL_I2C_STATE_TIMEOUT           = 0xA0U,   /*!< Timeout state                             */
  123.   HAL_I2C_STATE_ERROR             = 0xE0U    /*!< Error                                     */
  124.  
  125. } HAL_I2C_StateTypeDef;
  126.  
  127. /**
  128.   * @}
  129.   */
  130.  
  131. /** @defgroup HAL_mode_structure_definition HAL mode structure definition
  132.   * @brief  HAL Mode structure definition
  133.   * @note  HAL I2C Mode value coding follow below described bitmap :\n
  134.   *          b7     (not used)\n
  135.   *             x  : Should be set to 0\n
  136.   *          b6\n
  137.   *             0  : None\n
  138.   *             1  : Memory (HAL I2C communication is in Memory Mode)\n
  139.   *          b5\n
  140.   *             0  : None\n
  141.   *             1  : Slave (HAL I2C communication is in Slave Mode)\n
  142.   *          b4\n
  143.   *             0  : None\n
  144.   *             1  : Master (HAL I2C communication is in Master Mode)\n
  145.   *          b3-b2-b1-b0  (not used)\n
  146.   *             xxxx : Should be set to 0000
  147.   * @{
  148.   */
  149. typedef enum
  150. {
  151.   HAL_I2C_MODE_NONE               = 0x00U,   /*!< No I2C communication on going             */
  152.   HAL_I2C_MODE_MASTER             = 0x10U,   /*!< I2C communication is in Master Mode       */
  153.   HAL_I2C_MODE_SLAVE              = 0x20U,   /*!< I2C communication is in Slave Mode        */
  154.   HAL_I2C_MODE_MEM                = 0x40U    /*!< I2C communication is in Memory Mode       */
  155.  
  156. } HAL_I2C_ModeTypeDef;
  157.  
  158. /**
  159.   * @}
  160.   */
  161.  
  162. /** @defgroup I2C_Error_Code_definition I2C Error Code definition
  163.   * @brief  I2C Error Code definition
  164.   * @{
  165.   */
  166. #define HAL_I2C_ERROR_NONE      (0x00000000U)    /*!< No error              */
  167. #define HAL_I2C_ERROR_BERR      (0x00000001U)    /*!< BERR error            */
  168. #define HAL_I2C_ERROR_ARLO      (0x00000002U)    /*!< ARLO error            */
  169. #define HAL_I2C_ERROR_AF        (0x00000004U)    /*!< ACKF error            */
  170. #define HAL_I2C_ERROR_OVR       (0x00000008U)    /*!< OVR error             */
  171. #define HAL_I2C_ERROR_DMA       (0x00000010U)    /*!< DMA transfer error    */
  172. #define HAL_I2C_ERROR_TIMEOUT   (0x00000020U)    /*!< Timeout error         */
  173. #define HAL_I2C_ERROR_SIZE      (0x00000040U)    /*!< Size Management error */
  174. #define HAL_I2C_ERROR_DMA_PARAM (0x00000080U)    /*!< DMA Parameter Error   */
  175. #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
  176. #define HAL_I2C_ERROR_INVALID_CALLBACK  (0x00000100U)    /*!< Invalid Callback error */
  177. #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
  178. #define HAL_I2C_ERROR_INVALID_PARAM     (0x00000200U)    /*!< Invalid Parameters error  */
  179. /**
  180.   * @}
  181.   */
  182.  
  183. /** @defgroup I2C_handle_Structure_definition I2C handle Structure definition
  184.   * @brief  I2C handle Structure definition
  185.   * @{
  186.   */
  187. typedef struct __I2C_HandleTypeDef
  188. {
  189.   I2C_TypeDef                *Instance;      /*!< I2C registers base address                */
  190.  
  191.   I2C_InitTypeDef            Init;           /*!< I2C communication parameters              */
  192.  
  193.   uint8_t                    *pBuffPtr;      /*!< Pointer to I2C transfer buffer            */
  194.  
  195.   uint16_t                   XferSize;       /*!< I2C transfer size                         */
  196.  
  197.   __IO uint16_t              XferCount;      /*!< I2C transfer counter                      */
  198.  
  199.   __IO uint32_t              XferOptions;    /*!< I2C sequantial transfer options, this parameter can
  200.                                                   be a value of @ref I2C_XFEROPTIONS */
  201.  
  202.   __IO uint32_t              PreviousState;  /*!< I2C communication Previous state          */
  203.  
  204.   HAL_StatusTypeDef(*XferISR)(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources);
  205.   /*!< I2C transfer IRQ handler function pointer */
  206.  
  207.   DMA_HandleTypeDef          *hdmatx;        /*!< I2C Tx DMA handle parameters              */
  208.  
  209.   DMA_HandleTypeDef          *hdmarx;        /*!< I2C Rx DMA handle parameters              */
  210.  
  211.   HAL_LockTypeDef            Lock;           /*!< I2C locking object                        */
  212.  
  213.   __IO HAL_I2C_StateTypeDef  State;          /*!< I2C communication state                   */
  214.  
  215.   __IO HAL_I2C_ModeTypeDef   Mode;           /*!< I2C communication mode                    */
  216.  
  217.   __IO uint32_t              ErrorCode;      /*!< I2C Error code                            */
  218.  
  219.   __IO uint32_t              AddrEventCount; /*!< I2C Address Event counter                 */
  220.  
  221. #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
  222.   void (* MasterTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  223.   /*!< I2C Master Tx Transfer completed callback */
  224.   void (* MasterRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  225.   /*!< I2C Master Rx Transfer completed callback */
  226.   void (* SlaveTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  227.   /*!< I2C Slave Tx Transfer completed callback  */
  228.   void (* SlaveRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  229.   /*!< I2C Slave Rx Transfer completed callback  */
  230.   void (* ListenCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  231.   /*!< I2C Listen Complete callback              */
  232.   void (* MemTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  233.   /*!< I2C Memory Tx Transfer completed callback */
  234.   void (* MemRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  235.   /*!< I2C Memory Rx Transfer completed callback */
  236.   void (* ErrorCallback)(struct __I2C_HandleTypeDef *hi2c);
  237.   /*!< I2C Error callback                        */
  238.   void (* AbortCpltCallback)(struct __I2C_HandleTypeDef *hi2c);
  239.   /*!< I2C Abort callback                        */
  240.  
  241.   void (* AddrCallback)(struct __I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);
  242.   /*!< I2C Slave Address Match callback */
  243.  
  244.   void (* MspInitCallback)(struct __I2C_HandleTypeDef *hi2c);
  245.   /*!< I2C Msp Init callback                     */
  246.   void (* MspDeInitCallback)(struct __I2C_HandleTypeDef *hi2c);
  247.   /*!< I2C Msp DeInit callback                   */
  248.  
  249. #endif  /* USE_HAL_I2C_REGISTER_CALLBACKS */
  250. } I2C_HandleTypeDef;
  251.  
  252. #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
  253. /**
  254.   * @brief  HAL I2C Callback ID enumeration definition
  255.   */
  256. typedef enum
  257. {
  258.   HAL_I2C_MASTER_TX_COMPLETE_CB_ID      = 0x00U,    /*!< I2C Master Tx Transfer completed callback ID  */
  259.   HAL_I2C_MASTER_RX_COMPLETE_CB_ID      = 0x01U,    /*!< I2C Master Rx Transfer completed callback ID  */
  260.   HAL_I2C_SLAVE_TX_COMPLETE_CB_ID       = 0x02U,    /*!< I2C Slave Tx Transfer completed callback ID   */
  261.   HAL_I2C_SLAVE_RX_COMPLETE_CB_ID       = 0x03U,    /*!< I2C Slave Rx Transfer completed callback ID   */
  262.   HAL_I2C_LISTEN_COMPLETE_CB_ID         = 0x04U,    /*!< I2C Listen Complete callback ID               */
  263.   HAL_I2C_MEM_TX_COMPLETE_CB_ID         = 0x05U,    /*!< I2C Memory Tx Transfer callback ID            */
  264.   HAL_I2C_MEM_RX_COMPLETE_CB_ID         = 0x06U,    /*!< I2C Memory Rx Transfer completed callback ID  */
  265.   HAL_I2C_ERROR_CB_ID                   = 0x07U,    /*!< I2C Error callback ID                         */
  266.   HAL_I2C_ABORT_CB_ID                   = 0x08U,    /*!< I2C Abort callback ID                         */
  267.  
  268.   HAL_I2C_MSPINIT_CB_ID                 = 0x09U,    /*!< I2C Msp Init callback ID                      */
  269.   HAL_I2C_MSPDEINIT_CB_ID               = 0x0AU     /*!< I2C Msp DeInit callback ID                    */
  270.  
  271. } HAL_I2C_CallbackIDTypeDef;
  272.  
  273. /**
  274.   * @brief  HAL I2C Callback pointer definition
  275.   */
  276. typedef  void (*pI2C_CallbackTypeDef)(I2C_HandleTypeDef *hi2c);
  277. /*!< pointer to an I2C callback function */
  278. typedef  void (*pI2C_AddrCallbackTypeDef)(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection,
  279.                                           uint16_t AddrMatchCode);
  280. /*!< pointer to an I2C Address Match callback function */
  281.  
  282. #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
  283. /**
  284.   * @}
  285.   */
  286.  
  287. /**
  288.   * @}
  289.   */
  290. /* Exported constants --------------------------------------------------------*/
  291.  
  292. /** @defgroup I2C_Exported_Constants I2C Exported Constants
  293.   * @{
  294.   */
  295.  
  296. /** @defgroup I2C_XFEROPTIONS  I2C Sequential Transfer Options
  297.   * @{
  298.   */
  299. #define I2C_FIRST_FRAME                 ((uint32_t)I2C_SOFTEND_MODE)
  300. #define I2C_FIRST_AND_NEXT_FRAME        ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))
  301. #define I2C_NEXT_FRAME                  ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE))
  302. #define I2C_FIRST_AND_LAST_FRAME        ((uint32_t)I2C_AUTOEND_MODE)
  303. #define I2C_LAST_FRAME                  ((uint32_t)I2C_AUTOEND_MODE)
  304. #define I2C_LAST_FRAME_NO_STOP          ((uint32_t)I2C_SOFTEND_MODE)
  305.  
  306. /* List of XferOptions in usage of :
  307.  * 1- Restart condition in all use cases (direction change or not)
  308.  */
  309. #define  I2C_OTHER_FRAME                (0x000000AAU)
  310. #define  I2C_OTHER_AND_LAST_FRAME       (0x0000AA00U)
  311. /**
  312.   * @}
  313.   */
  314.  
  315. /** @defgroup I2C_ADDRESSING_MODE I2C Addressing Mode
  316.   * @{
  317.   */
  318. #define I2C_ADDRESSINGMODE_7BIT         (0x00000001U)
  319. #define I2C_ADDRESSINGMODE_10BIT        (0x00000002U)
  320. /**
  321.   * @}
  322.   */
  323.  
  324. /** @defgroup I2C_DUAL_ADDRESSING_MODE I2C Dual Addressing Mode
  325.   * @{
  326.   */
  327. #define I2C_DUALADDRESS_DISABLE         (0x00000000U)
  328. #define I2C_DUALADDRESS_ENABLE          I2C_OAR2_OA2EN
  329. /**
  330.   * @}
  331.   */
  332.  
  333. /** @defgroup I2C_OWN_ADDRESS2_MASKS I2C Own Address2 Masks
  334.   * @{
  335.   */
  336. #define I2C_OA2_NOMASK                  ((uint8_t)0x00U)
  337. #define I2C_OA2_MASK01                  ((uint8_t)0x01U)
  338. #define I2C_OA2_MASK02                  ((uint8_t)0x02U)
  339. #define I2C_OA2_MASK03                  ((uint8_t)0x03U)
  340. #define I2C_OA2_MASK04                  ((uint8_t)0x04U)
  341. #define I2C_OA2_MASK05                  ((uint8_t)0x05U)
  342. #define I2C_OA2_MASK06                  ((uint8_t)0x06U)
  343. #define I2C_OA2_MASK07                  ((uint8_t)0x07U)
  344. /**
  345.   * @}
  346.   */
  347.  
  348. /** @defgroup I2C_GENERAL_CALL_ADDRESSING_MODE I2C General Call Addressing Mode
  349.   * @{
  350.   */
  351. #define I2C_GENERALCALL_DISABLE         (0x00000000U)
  352. #define I2C_GENERALCALL_ENABLE          I2C_CR1_GCEN
  353. /**
  354.   * @}
  355.   */
  356.  
  357. /** @defgroup I2C_NOSTRETCH_MODE I2C No-Stretch Mode
  358.   * @{
  359.   */
  360. #define I2C_NOSTRETCH_DISABLE           (0x00000000U)
  361. #define I2C_NOSTRETCH_ENABLE            I2C_CR1_NOSTRETCH
  362. /**
  363.   * @}
  364.   */
  365.  
  366. /** @defgroup I2C_MEMORY_ADDRESS_SIZE I2C Memory Address Size
  367.   * @{
  368.   */
  369. #define I2C_MEMADD_SIZE_8BIT            (0x00000001U)
  370. #define I2C_MEMADD_SIZE_16BIT           (0x00000002U)
  371. /**
  372.   * @}
  373.   */
  374.  
  375. /** @defgroup I2C_XFERDIRECTION I2C Transfer Direction Master Point of View
  376.   * @{
  377.   */
  378. #define I2C_DIRECTION_TRANSMIT          (0x00000000U)
  379. #define I2C_DIRECTION_RECEIVE           (0x00000001U)
  380. /**
  381.   * @}
  382.   */
  383.  
  384. /** @defgroup I2C_RELOAD_END_MODE I2C Reload End Mode
  385.   * @{
  386.   */
  387. #define  I2C_RELOAD_MODE                I2C_CR2_RELOAD
  388. #define  I2C_AUTOEND_MODE               I2C_CR2_AUTOEND
  389. #define  I2C_SOFTEND_MODE               (0x00000000U)
  390. /**
  391.   * @}
  392.   */
  393.  
  394. /** @defgroup I2C_START_STOP_MODE I2C Start or Stop Mode
  395.   * @{
  396.   */
  397. #define  I2C_NO_STARTSTOP               (0x00000000U)
  398. #define  I2C_GENERATE_STOP              (uint32_t)(0x80000000U | I2C_CR2_STOP)
  399. #define  I2C_GENERATE_START_READ        (uint32_t)(0x80000000U | I2C_CR2_START | I2C_CR2_RD_WRN)
  400. #define  I2C_GENERATE_START_WRITE       (uint32_t)(0x80000000U | I2C_CR2_START)
  401. /**
  402.   * @}
  403.   */
  404.  
  405. /** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition
  406.   * @brief I2C Interrupt definition
  407.   *        Elements values convention: 0xXXXXXXXX
  408.   *           - XXXXXXXX  : Interrupt control mask
  409.   * @{
  410.   */
  411. #define I2C_IT_ERRI                     I2C_CR1_ERRIE
  412. #define I2C_IT_TCI                      I2C_CR1_TCIE
  413. #define I2C_IT_STOPI                    I2C_CR1_STOPIE
  414. #define I2C_IT_NACKI                    I2C_CR1_NACKIE
  415. #define I2C_IT_ADDRI                    I2C_CR1_ADDRIE
  416. #define I2C_IT_RXI                      I2C_CR1_RXIE
  417. #define I2C_IT_TXI                      I2C_CR1_TXIE
  418. /**
  419.   * @}
  420.   */
  421.  
  422. /** @defgroup I2C_Flag_definition I2C Flag definition
  423.   * @{
  424.   */
  425. #define I2C_FLAG_TXE                    I2C_ISR_TXE
  426. #define I2C_FLAG_TXIS                   I2C_ISR_TXIS
  427. #define I2C_FLAG_RXNE                   I2C_ISR_RXNE
  428. #define I2C_FLAG_ADDR                   I2C_ISR_ADDR
  429. #define I2C_FLAG_AF                     I2C_ISR_NACKF
  430. #define I2C_FLAG_STOPF                  I2C_ISR_STOPF
  431. #define I2C_FLAG_TC                     I2C_ISR_TC
  432. #define I2C_FLAG_TCR                    I2C_ISR_TCR
  433. #define I2C_FLAG_BERR                   I2C_ISR_BERR
  434. #define I2C_FLAG_ARLO                   I2C_ISR_ARLO
  435. #define I2C_FLAG_OVR                    I2C_ISR_OVR
  436. #define I2C_FLAG_PECERR                 I2C_ISR_PECERR
  437. #define I2C_FLAG_TIMEOUT                I2C_ISR_TIMEOUT
  438. #define I2C_FLAG_ALERT                  I2C_ISR_ALERT
  439. #define I2C_FLAG_BUSY                   I2C_ISR_BUSY
  440. #define I2C_FLAG_DIR                    I2C_ISR_DIR
  441. /**
  442.   * @}
  443.   */
  444.  
  445. /**
  446.   * @}
  447.   */
  448.  
  449. /* Exported macros -----------------------------------------------------------*/
  450.  
  451. /** @defgroup I2C_Exported_Macros I2C Exported Macros
  452.   * @{
  453.   */
  454.  
  455. /** @brief Reset I2C handle state.
  456.   * @param  __HANDLE__ specifies the I2C Handle.
  457.   * @retval None
  458.   */
  459. #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
  460. #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                do{                                             \
  461.                                                                     (__HANDLE__)->State = HAL_I2C_STATE_RESET;  \
  462.                                                                     (__HANDLE__)->MspInitCallback = NULL;       \
  463.                                                                     (__HANDLE__)->MspDeInitCallback = NULL;     \
  464.                                                                   } while(0)
  465. #else
  466. #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__)                ((__HANDLE__)->State = HAL_I2C_STATE_RESET)
  467. #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
  468.  
  469. /** @brief  Enable the specified I2C interrupt.
  470.   * @param  __HANDLE__ specifies the I2C Handle.
  471.   * @param  __INTERRUPT__ specifies the interrupt source to enable.
  472.   *        This parameter can be one of the following values:
  473.   *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
  474.   *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
  475.   *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
  476.   *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
  477.   *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
  478.   *            @arg @ref I2C_IT_RXI   RX interrupt enable
  479.   *            @arg @ref I2C_IT_TXI   TX interrupt enable
  480.   *
  481.   * @retval None
  482.   */
  483. #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__)          ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__))
  484.  
  485. /** @brief  Disable the specified I2C interrupt.
  486.   * @param  __HANDLE__ specifies the I2C Handle.
  487.   * @param  __INTERRUPT__ specifies the interrupt source to disable.
  488.   *        This parameter can be one of the following values:
  489.   *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
  490.   *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
  491.   *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
  492.   *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
  493.   *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
  494.   *            @arg @ref I2C_IT_RXI   RX interrupt enable
  495.   *            @arg @ref I2C_IT_TXI   TX interrupt enable
  496.   *
  497.   * @retval None
  498.   */
  499. #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__)         ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__)))
  500.  
  501. /** @brief  Check whether the specified I2C interrupt source is enabled or not.
  502.   * @param  __HANDLE__ specifies the I2C Handle.
  503.   * @param  __INTERRUPT__ specifies the I2C interrupt source to check.
  504.   *          This parameter can be one of the following values:
  505.   *            @arg @ref I2C_IT_ERRI  Errors interrupt enable
  506.   *            @arg @ref I2C_IT_TCI   Transfer complete interrupt enable
  507.   *            @arg @ref I2C_IT_STOPI STOP detection interrupt enable
  508.   *            @arg @ref I2C_IT_NACKI NACK received interrupt enable
  509.   *            @arg @ref I2C_IT_ADDRI Address match interrupt enable
  510.   *            @arg @ref I2C_IT_RXI   RX interrupt enable
  511.   *            @arg @ref I2C_IT_TXI   TX interrupt enable
  512.   *
  513.   * @retval The new state of __INTERRUPT__ (SET or RESET).
  514.   */
  515. #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__)      ((((__HANDLE__)->Instance->CR1 & \
  516.                                                                    (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET)
  517.  
  518. /** @brief  Check whether the specified I2C flag is set or not.
  519.   * @param  __HANDLE__ specifies the I2C Handle.
  520.   * @param  __FLAG__ specifies the flag to check.
  521.   *        This parameter can be one of the following values:
  522.   *            @arg @ref I2C_FLAG_TXE     Transmit data register empty
  523.   *            @arg @ref I2C_FLAG_TXIS    Transmit interrupt status
  524.   *            @arg @ref I2C_FLAG_RXNE    Receive data register not empty
  525.   *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)
  526.   *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag
  527.   *            @arg @ref I2C_FLAG_STOPF   STOP detection flag
  528.   *            @arg @ref I2C_FLAG_TC      Transfer complete (master mode)
  529.   *            @arg @ref I2C_FLAG_TCR     Transfer complete reload
  530.   *            @arg @ref I2C_FLAG_BERR    Bus error
  531.   *            @arg @ref I2C_FLAG_ARLO    Arbitration lost
  532.   *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun
  533.   *            @arg @ref I2C_FLAG_PECERR  PEC error in reception
  534.   *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag
  535.   *            @arg @ref I2C_FLAG_ALERT   SMBus alert
  536.   *            @arg @ref I2C_FLAG_BUSY    Bus busy
  537.   *            @arg @ref I2C_FLAG_DIR     Transfer direction (slave mode)
  538.   *
  539.   * @retval The new state of __FLAG__ (SET or RESET).
  540.   */
  541. #define I2C_FLAG_MASK  (0x0001FFFFU)
  542. #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) (((((__HANDLE__)->Instance->ISR) & \
  543.                                                     (__FLAG__)) == (__FLAG__)) ? SET : RESET)
  544.  
  545. /** @brief  Clear the I2C pending flags which are cleared by writing 1 in a specific bit.
  546.   * @param  __HANDLE__ specifies the I2C Handle.
  547.   * @param  __FLAG__ specifies the flag to clear.
  548.   *          This parameter can be any combination of the following values:
  549.   *            @arg @ref I2C_FLAG_TXE     Transmit data register empty
  550.   *            @arg @ref I2C_FLAG_ADDR    Address matched (slave mode)
  551.   *            @arg @ref I2C_FLAG_AF      Acknowledge failure received flag
  552.   *            @arg @ref I2C_FLAG_STOPF   STOP detection flag
  553.   *            @arg @ref I2C_FLAG_BERR    Bus error
  554.   *            @arg @ref I2C_FLAG_ARLO    Arbitration lost
  555.   *            @arg @ref I2C_FLAG_OVR     Overrun/Underrun
  556.   *            @arg @ref I2C_FLAG_PECERR  PEC error in reception
  557.   *            @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag
  558.   *            @arg @ref I2C_FLAG_ALERT   SMBus alert
  559.   *
  560.   * @retval None
  561.   */
  562. #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) (((__FLAG__) == I2C_FLAG_TXE) ? \
  563.                                                     ((__HANDLE__)->Instance->ISR |= (__FLAG__)) : \
  564.                                                     ((__HANDLE__)->Instance->ICR = (__FLAG__)))
  565.  
  566. /** @brief  Enable the specified I2C peripheral.
  567.   * @param  __HANDLE__ specifies the I2C Handle.
  568.   * @retval None
  569.   */
  570. #define __HAL_I2C_ENABLE(__HANDLE__)                         (SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
  571.  
  572. /** @brief  Disable the specified I2C peripheral.
  573.   * @param  __HANDLE__ specifies the I2C Handle.
  574.   * @retval None
  575.   */
  576. #define __HAL_I2C_DISABLE(__HANDLE__)                        (CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE))
  577.  
  578. /** @brief  Generate a Non-Acknowledge I2C peripheral in Slave mode.
  579.   * @param  __HANDLE__ specifies the I2C Handle.
  580.   * @retval None
  581.   */
  582. #define __HAL_I2C_GENERATE_NACK(__HANDLE__)                  (SET_BIT((__HANDLE__)->Instance->CR2, I2C_CR2_NACK))
  583. /**
  584.   * @}
  585.   */
  586.  
  587. /* Include I2C HAL Extended module */
  588. #include "stm32f0xx_hal_i2c_ex.h"
  589.  
  590. /* Exported functions --------------------------------------------------------*/
  591. /** @addtogroup I2C_Exported_Functions
  592.   * @{
  593.   */
  594.  
  595. /** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions
  596.   * @{
  597.   */
  598. /* Initialization and de-initialization functions******************************/
  599. HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c);
  600. HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c);
  601. void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c);
  602. void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c);
  603.  
  604. /* Callbacks Register/UnRegister functions  ***********************************/
  605. #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1)
  606. HAL_StatusTypeDef HAL_I2C_RegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID,
  607.                                            pI2C_CallbackTypeDef pCallback);
  608. HAL_StatusTypeDef HAL_I2C_UnRegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID);
  609.  
  610. HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback(I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback);
  611. HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback(I2C_HandleTypeDef *hi2c);
  612. #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */
  613. /**
  614.   * @}
  615.   */
  616.  
  617. /** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions
  618.   * @{
  619.   */
  620. /* IO operation functions  ****************************************************/
  621. /******* Blocking mode: Polling */
  622. HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  623.                                           uint16_t Size, uint32_t Timeout);
  624. HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  625.                                          uint16_t Size, uint32_t Timeout);
  626. HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,
  627.                                          uint32_t Timeout);
  628. HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,
  629.                                         uint32_t Timeout);
  630. HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,
  631.                                     uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);
  632. HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,
  633.                                    uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout);
  634. HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials,
  635.                                         uint32_t Timeout);
  636.  
  637. /******* Non-Blocking mode: Interrupt */
  638. HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  639.                                              uint16_t Size);
  640. HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  641.                                             uint16_t Size);
  642. HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
  643. HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
  644. HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,
  645.                                        uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
  646. HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,
  647.                                       uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
  648.  
  649. HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  650.                                                  uint16_t Size, uint32_t XferOptions);
  651. HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  652.                                                 uint16_t Size, uint32_t XferOptions);
  653. HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,
  654.                                                 uint32_t XferOptions);
  655. HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,
  656.                                                uint32_t XferOptions);
  657. HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c);
  658. HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c);
  659. HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress);
  660.  
  661. /******* Non-Blocking mode: DMA */
  662. HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  663.                                               uint16_t Size);
  664. HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  665.                                              uint16_t Size);
  666. HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
  667. HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size);
  668. HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,
  669.                                         uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
  670. HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress,
  671.                                        uint16_t MemAddSize, uint8_t *pData, uint16_t Size);
  672.  
  673. HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  674.                                                   uint16_t Size, uint32_t XferOptions);
  675. HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData,
  676.                                                  uint16_t Size, uint32_t XferOptions);
  677. HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,
  678.                                                  uint32_t XferOptions);
  679. HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size,
  680.                                                 uint32_t XferOptions);
  681. /**
  682.   * @}
  683.   */
  684.  
  685. /** @addtogroup I2C_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks
  686.   * @{
  687.   */
  688. /******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */
  689. void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c);
  690. void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c);
  691. void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c);
  692. void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c);
  693. void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c);
  694. void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c);
  695. void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode);
  696. void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c);
  697. void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c);
  698. void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c);
  699. void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c);
  700. void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c);
  701. /**
  702.   * @}
  703.   */
  704.  
  705. /** @addtogroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions
  706.   * @{
  707.   */
  708. /* Peripheral State, Mode and Error functions  *********************************/
  709. HAL_I2C_StateTypeDef HAL_I2C_GetState(I2C_HandleTypeDef *hi2c);
  710. HAL_I2C_ModeTypeDef  HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c);
  711. uint32_t             HAL_I2C_GetError(I2C_HandleTypeDef *hi2c);
  712.  
  713. /**
  714.   * @}
  715.   */
  716.  
  717. /**
  718.   * @}
  719.   */
  720.  
  721. /* Private constants ---------------------------------------------------------*/
  722. /** @defgroup I2C_Private_Constants I2C Private Constants
  723.   * @{
  724.   */
  725.  
  726. /**
  727.   * @}
  728.   */
  729.  
  730. /* Private macros ------------------------------------------------------------*/
  731. /** @defgroup I2C_Private_Macro I2C Private Macros
  732.   * @{
  733.   */
  734.  
  735. #define IS_I2C_ADDRESSING_MODE(MODE)    (((MODE) == I2C_ADDRESSINGMODE_7BIT) || \
  736.                                          ((MODE) == I2C_ADDRESSINGMODE_10BIT))
  737.  
  738. #define IS_I2C_DUAL_ADDRESS(ADDRESS)    (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \
  739.                                          ((ADDRESS) == I2C_DUALADDRESS_ENABLE))
  740.  
  741. #define IS_I2C_OWN_ADDRESS2_MASK(MASK)  (((MASK) == I2C_OA2_NOMASK)  || \
  742.                                          ((MASK) == I2C_OA2_MASK01) || \
  743.                                          ((MASK) == I2C_OA2_MASK02) || \
  744.                                          ((MASK) == I2C_OA2_MASK03) || \
  745.                                          ((MASK) == I2C_OA2_MASK04) || \
  746.                                          ((MASK) == I2C_OA2_MASK05) || \
  747.                                          ((MASK) == I2C_OA2_MASK06) || \
  748.                                          ((MASK) == I2C_OA2_MASK07))
  749.  
  750. #define IS_I2C_GENERAL_CALL(CALL)       (((CALL) == I2C_GENERALCALL_DISABLE) || \
  751.                                          ((CALL) == I2C_GENERALCALL_ENABLE))
  752.  
  753. #define IS_I2C_NO_STRETCH(STRETCH)      (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \
  754.                                          ((STRETCH) == I2C_NOSTRETCH_ENABLE))
  755.  
  756. #define IS_I2C_MEMADD_SIZE(SIZE)        (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \
  757.                                          ((SIZE) == I2C_MEMADD_SIZE_16BIT))
  758.  
  759. #define IS_TRANSFER_MODE(MODE)          (((MODE) == I2C_RELOAD_MODE)   || \
  760.                                          ((MODE) == I2C_AUTOEND_MODE) || \
  761.                                          ((MODE) == I2C_SOFTEND_MODE))
  762.  
  763. #define IS_TRANSFER_REQUEST(REQUEST)    (((REQUEST) == I2C_GENERATE_STOP)        || \
  764.                                          ((REQUEST) == I2C_GENERATE_START_READ)  || \
  765.                                          ((REQUEST) == I2C_GENERATE_START_WRITE) || \
  766.                                          ((REQUEST) == I2C_NO_STARTSTOP))
  767.  
  768. #define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST)  (((REQUEST) == I2C_FIRST_FRAME)          || \
  769.                                                    ((REQUEST) == I2C_FIRST_AND_NEXT_FRAME) || \
  770.                                                    ((REQUEST) == I2C_NEXT_FRAME)           || \
  771.                                                    ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || \
  772.                                                    ((REQUEST) == I2C_LAST_FRAME)           || \
  773.                                                    ((REQUEST) == I2C_LAST_FRAME_NO_STOP)   || \
  774.                                                    IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST))
  775.  
  776. #define IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_OTHER_FRAME)     || \
  777.                                                         ((REQUEST) == I2C_OTHER_AND_LAST_FRAME))
  778.  
  779. #define I2C_RESET_CR2(__HANDLE__)                 ((__HANDLE__)->Instance->CR2 &= \
  780.                                                    (uint32_t)~((uint32_t)(I2C_CR2_SADD   | I2C_CR2_HEAD10R | \
  781.                                                                           I2C_CR2_NBYTES | I2C_CR2_RELOAD  | \
  782.                                                                           I2C_CR2_RD_WRN)))
  783.  
  784. #define I2C_GET_ADDR_MATCH(__HANDLE__)            ((uint16_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_ADDCODE) \
  785.                                                               >> 16U))
  786. #define I2C_GET_DIR(__HANDLE__)                   ((uint8_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_DIR) \
  787.                                                              >> 16U))
  788. #define I2C_GET_STOP_MODE(__HANDLE__)             ((__HANDLE__)->Instance->CR2 & I2C_CR2_AUTOEND)
  789. #define I2C_GET_OWN_ADDRESS1(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR1 & I2C_OAR1_OA1))
  790. #define I2C_GET_OWN_ADDRESS2(__HANDLE__)          ((uint16_t)((__HANDLE__)->Instance->OAR2 & I2C_OAR2_OA2))
  791.  
  792. #define IS_I2C_OWN_ADDRESS1(ADDRESS1)             ((ADDRESS1) <= 0x000003FFU)
  793. #define IS_I2C_OWN_ADDRESS2(ADDRESS2)             ((ADDRESS2) <= (uint16_t)0x00FFU)
  794.  
  795. #define I2C_MEM_ADD_MSB(__ADDRESS__)              ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & \
  796.                                                                          (uint16_t)(0xFF00U))) >> 8U)))
  797. #define I2C_MEM_ADD_LSB(__ADDRESS__)              ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FFU))))
  798.  
  799. #define I2C_GENERATE_START(__ADDMODE__,__ADDRESS__) (((__ADDMODE__) == I2C_ADDRESSINGMODE_7BIT) ? \
  800.                                                      (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | \
  801.                                                                  (I2C_CR2_START) | (I2C_CR2_AUTOEND)) & \
  802.                                                                 (~I2C_CR2_RD_WRN)) : \
  803.                                                      (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | \
  804.                                                                  (I2C_CR2_ADD10) | (I2C_CR2_START)) & \
  805.                                                                 (~I2C_CR2_RD_WRN)))
  806.  
  807. #define I2C_CHECK_FLAG(__ISR__, __FLAG__)         ((((__ISR__) & ((__FLAG__) & I2C_FLAG_MASK)) == \
  808.                                                     ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET)
  809. #define I2C_CHECK_IT_SOURCE(__CR1__, __IT__)      ((((__CR1__) & (__IT__)) == (__IT__)) ? SET : RESET)
  810. /**
  811.   * @}
  812.   */
  813.  
  814. /* Private Functions ---------------------------------------------------------*/
  815. /** @defgroup I2C_Private_Functions I2C Private Functions
  816.   * @{
  817.   */
  818. /* Private functions are defined in stm32f0xx_hal_i2c.c file */
  819. /**
  820.   * @}
  821.   */
  822.  
  823. /**
  824.   * @}
  825.   */
  826.  
  827. /**
  828.   * @}
  829.   */
  830.  
  831. #ifdef __cplusplus
  832. }
  833. #endif
  834.  
  835.  
  836. #endif /* STM32F0xx_HAL_I2C_H */
  837.  
  838. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  839.