/** ****************************************************************************** * @file stm32l4xx_hal_i2c.h * @author MCD Application Team * @brief Header file of I2C HAL module. ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef STM32L4xx_HAL_I2C_H #define STM32L4xx_HAL_I2C_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32l4xx_hal_def.h" /** @addtogroup STM32L4xx_HAL_Driver * @{ */ /** @addtogroup I2C * @{ */ /* Exported types ------------------------------------------------------------*/ /** @defgroup I2C_Exported_Types I2C Exported Types * @{ */ /** @defgroup I2C_Configuration_Structure_definition I2C Configuration Structure definition * @brief I2C Configuration Structure definition * @{ */ typedef struct { uint32_t Timing; /*!< Specifies the I2C_TIMINGR_register value. This parameter calculated by referring to I2C initialization section in Reference manual */ uint32_t OwnAddress1; /*!< Specifies the first device own address. This parameter can be a 7-bit or 10-bit address. */ uint32_t AddressingMode; /*!< Specifies if 7-bit or 10-bit addressing mode is selected. This parameter can be a value of @ref I2C_ADDRESSING_MODE */ uint32_t DualAddressMode; /*!< Specifies if dual addressing mode is selected. This parameter can be a value of @ref I2C_DUAL_ADDRESSING_MODE */ uint32_t OwnAddress2; /*!< Specifies the second device own address if dual addressing mode is selected This parameter can be a 7-bit address. */ uint32_t OwnAddress2Masks; /*!< Specifies the acknowledge mask address second device own address if dual addressing mode is selected. This parameter can be a value of @ref I2C_OWN_ADDRESS2_MASKS */ uint32_t GeneralCallMode; /*!< Specifies if general call mode is selected. This parameter can be a value of @ref I2C_GENERAL_CALL_ADDRESSING_MODE */ uint32_t NoStretchMode; /*!< Specifies if nostretch mode is selected. This parameter can be a value of @ref I2C_NOSTRETCH_MODE */ } I2C_InitTypeDef; /** * @} */ /** @defgroup HAL_state_structure_definition HAL state structure definition * @brief HAL State structure definition * @note HAL I2C State value coding follow below described bitmap :\n * b7-b6 Error information\n * 00 : No Error\n * 01 : Abort (Abort user request on going)\n * 10 : Timeout\n * 11 : Error\n * b5 Peripheral initialization status\n * 0 : Reset (peripheral not initialized)\n * 1 : Init done (peripheral initialized and ready to use. HAL I2C Init function called)\n * b4 (not used)\n * x : Should be set to 0\n * b3\n * 0 : Ready or Busy (No Listen mode ongoing)\n * 1 : Listen (peripheral in Address Listen Mode)\n * b2 Intrinsic process state\n * 0 : Ready\n * 1 : Busy (peripheral busy with some configuration or internal operations)\n * b1 Rx state\n * 0 : Ready (no Rx operation ongoing)\n * 1 : Busy (Rx operation ongoing)\n * b0 Tx state\n * 0 : Ready (no Tx operation ongoing)\n * 1 : Busy (Tx operation ongoing) * @{ */ typedef enum { HAL_I2C_STATE_RESET = 0x00U, /*!< Peripheral is not yet Initialized */ HAL_I2C_STATE_READY = 0x20U, /*!< Peripheral Initialized and ready for use */ HAL_I2C_STATE_BUSY = 0x24U, /*!< An internal process is ongoing */ HAL_I2C_STATE_BUSY_TX = 0x21U, /*!< Data Transmission process is ongoing */ HAL_I2C_STATE_BUSY_RX = 0x22U, /*!< Data Reception process is ongoing */ HAL_I2C_STATE_LISTEN = 0x28U, /*!< Address Listen Mode is ongoing */ HAL_I2C_STATE_BUSY_TX_LISTEN = 0x29U, /*!< Address Listen Mode and Data Transmission process is ongoing */ HAL_I2C_STATE_BUSY_RX_LISTEN = 0x2AU, /*!< Address Listen Mode and Data Reception process is ongoing */ HAL_I2C_STATE_ABORT = 0x60U, /*!< Abort user request ongoing */ HAL_I2C_STATE_TIMEOUT = 0xA0U, /*!< Timeout state */ HAL_I2C_STATE_ERROR = 0xE0U /*!< Error */ } HAL_I2C_StateTypeDef; /** * @} */ /** @defgroup HAL_mode_structure_definition HAL mode structure definition * @brief HAL Mode structure definition * @note HAL I2C Mode value coding follow below described bitmap :\n * b7 (not used)\n * x : Should be set to 0\n * b6\n * 0 : None\n * 1 : Memory (HAL I2C communication is in Memory Mode)\n * b5\n * 0 : None\n * 1 : Slave (HAL I2C communication is in Slave Mode)\n * b4\n * 0 : None\n * 1 : Master (HAL I2C communication is in Master Mode)\n * b3-b2-b1-b0 (not used)\n * xxxx : Should be set to 0000 * @{ */ typedef enum { HAL_I2C_MODE_NONE = 0x00U, /*!< No I2C communication on going */ HAL_I2C_MODE_MASTER = 0x10U, /*!< I2C communication is in Master Mode */ HAL_I2C_MODE_SLAVE = 0x20U, /*!< I2C communication is in Slave Mode */ HAL_I2C_MODE_MEM = 0x40U /*!< I2C communication is in Memory Mode */ } HAL_I2C_ModeTypeDef; /** * @} */ /** @defgroup I2C_Error_Code_definition I2C Error Code definition * @brief I2C Error Code definition * @{ */ #define HAL_I2C_ERROR_NONE (0x00000000U) /*!< No error */ #define HAL_I2C_ERROR_BERR (0x00000001U) /*!< BERR error */ #define HAL_I2C_ERROR_ARLO (0x00000002U) /*!< ARLO error */ #define HAL_I2C_ERROR_AF (0x00000004U) /*!< ACKF error */ #define HAL_I2C_ERROR_OVR (0x00000008U) /*!< OVR error */ #define HAL_I2C_ERROR_DMA (0x00000010U) /*!< DMA transfer error */ #define HAL_I2C_ERROR_TIMEOUT (0x00000020U) /*!< Timeout error */ #define HAL_I2C_ERROR_SIZE (0x00000040U) /*!< Size Management error */ #define HAL_I2C_ERROR_DMA_PARAM (0x00000080U) /*!< DMA Parameter Error */ #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) #define HAL_I2C_ERROR_INVALID_CALLBACK (0x00000100U) /*!< Invalid Callback error */ #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ #define HAL_I2C_ERROR_INVALID_PARAM (0x00000200U) /*!< Invalid Parameters error */ /** * @} */ /** @defgroup I2C_handle_Structure_definition I2C handle Structure definition * @brief I2C handle Structure definition * @{ */ typedef struct __I2C_HandleTypeDef { I2C_TypeDef *Instance; /*!< I2C registers base address */ I2C_InitTypeDef Init; /*!< I2C communication parameters */ uint8_t *pBuffPtr; /*!< Pointer to I2C transfer buffer */ uint16_t XferSize; /*!< I2C transfer size */ __IO uint16_t XferCount; /*!< I2C transfer counter */ __IO uint32_t XferOptions; /*!< I2C sequantial transfer options, this parameter can be a value of @ref I2C_XFEROPTIONS */ __IO uint32_t PreviousState; /*!< I2C communication Previous state */ HAL_StatusTypeDef(*XferISR)(struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources); /*!< I2C transfer IRQ handler function pointer */ DMA_HandleTypeDef *hdmatx; /*!< I2C Tx DMA handle parameters */ DMA_HandleTypeDef *hdmarx; /*!< I2C Rx DMA handle parameters */ HAL_LockTypeDef Lock; /*!< I2C locking object */ __IO HAL_I2C_StateTypeDef State; /*!< I2C communication state */ __IO HAL_I2C_ModeTypeDef Mode; /*!< I2C communication mode */ __IO uint32_t ErrorCode; /*!< I2C Error code */ __IO uint32_t AddrEventCount; /*!< I2C Address Event counter */ __IO uint32_t Devaddress; /*!< I2C Target device address */ __IO uint32_t Memaddress; /*!< I2C Target memory address */ #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) void (* MasterTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Master Tx Transfer completed callback */ void (* MasterRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Master Rx Transfer completed callback */ void (* SlaveTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Slave Tx Transfer completed callback */ void (* SlaveRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Slave Rx Transfer completed callback */ void (* ListenCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Listen Complete callback */ void (* MemTxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Memory Tx Transfer completed callback */ void (* MemRxCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Memory Rx Transfer completed callback */ void (* ErrorCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Error callback */ void (* AbortCpltCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Abort callback */ void (* AddrCallback)(struct __I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); /*!< I2C Slave Address Match callback */ void (* MspInitCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Msp Init callback */ void (* MspDeInitCallback)(struct __I2C_HandleTypeDef *hi2c); /*!< I2C Msp DeInit callback */ #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ } I2C_HandleTypeDef; #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) /** * @brief HAL I2C Callback ID enumeration definition */ typedef enum { HAL_I2C_MASTER_TX_COMPLETE_CB_ID = 0x00U, /*!< I2C Master Tx Transfer completed callback ID */ HAL_I2C_MASTER_RX_COMPLETE_CB_ID = 0x01U, /*!< I2C Master Rx Transfer completed callback ID */ HAL_I2C_SLAVE_TX_COMPLETE_CB_ID = 0x02U, /*!< I2C Slave Tx Transfer completed callback ID */ HAL_I2C_SLAVE_RX_COMPLETE_CB_ID = 0x03U, /*!< I2C Slave Rx Transfer completed callback ID */ HAL_I2C_LISTEN_COMPLETE_CB_ID = 0x04U, /*!< I2C Listen Complete callback ID */ HAL_I2C_MEM_TX_COMPLETE_CB_ID = 0x05U, /*!< I2C Memory Tx Transfer callback ID */ HAL_I2C_MEM_RX_COMPLETE_CB_ID = 0x06U, /*!< I2C Memory Rx Transfer completed callback ID */ HAL_I2C_ERROR_CB_ID = 0x07U, /*!< I2C Error callback ID */ HAL_I2C_ABORT_CB_ID = 0x08U, /*!< I2C Abort callback ID */ HAL_I2C_MSPINIT_CB_ID = 0x09U, /*!< I2C Msp Init callback ID */ HAL_I2C_MSPDEINIT_CB_ID = 0x0AU /*!< I2C Msp DeInit callback ID */ } HAL_I2C_CallbackIDTypeDef; /** * @brief HAL I2C Callback pointer definition */ typedef void (*pI2C_CallbackTypeDef)(I2C_HandleTypeDef *hi2c); /*!< pointer to an I2C callback function */ typedef void (*pI2C_AddrCallbackTypeDef)(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); /*!< pointer to an I2C Address Match callback function */ #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ /** * @} */ /** * @} */ /* Exported constants --------------------------------------------------------*/ /** @defgroup I2C_Exported_Constants I2C Exported Constants * @{ */ /** @defgroup I2C_XFEROPTIONS I2C Sequential Transfer Options * @{ */ #define I2C_FIRST_FRAME ((uint32_t)I2C_SOFTEND_MODE) #define I2C_FIRST_AND_NEXT_FRAME ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE)) #define I2C_NEXT_FRAME ((uint32_t)(I2C_RELOAD_MODE | I2C_SOFTEND_MODE)) #define I2C_FIRST_AND_LAST_FRAME ((uint32_t)I2C_AUTOEND_MODE) #define I2C_LAST_FRAME ((uint32_t)I2C_AUTOEND_MODE) #define I2C_LAST_FRAME_NO_STOP ((uint32_t)I2C_SOFTEND_MODE) /* List of XferOptions in usage of : * 1- Restart condition in all use cases (direction change or not) */ #define I2C_OTHER_FRAME (0x000000AAU) #define I2C_OTHER_AND_LAST_FRAME (0x0000AA00U) /** * @} */ /** @defgroup I2C_ADDRESSING_MODE I2C Addressing Mode * @{ */ #define I2C_ADDRESSINGMODE_7BIT (0x00000001U) #define I2C_ADDRESSINGMODE_10BIT (0x00000002U) /** * @} */ /** @defgroup I2C_DUAL_ADDRESSING_MODE I2C Dual Addressing Mode * @{ */ #define I2C_DUALADDRESS_DISABLE (0x00000000U) #define I2C_DUALADDRESS_ENABLE I2C_OAR2_OA2EN /** * @} */ /** @defgroup I2C_OWN_ADDRESS2_MASKS I2C Own Address2 Masks * @{ */ #define I2C_OA2_NOMASK ((uint8_t)0x00U) #define I2C_OA2_MASK01 ((uint8_t)0x01U) #define I2C_OA2_MASK02 ((uint8_t)0x02U) #define I2C_OA2_MASK03 ((uint8_t)0x03U) #define I2C_OA2_MASK04 ((uint8_t)0x04U) #define I2C_OA2_MASK05 ((uint8_t)0x05U) #define I2C_OA2_MASK06 ((uint8_t)0x06U) #define I2C_OA2_MASK07 ((uint8_t)0x07U) /** * @} */ /** @defgroup I2C_GENERAL_CALL_ADDRESSING_MODE I2C General Call Addressing Mode * @{ */ #define I2C_GENERALCALL_DISABLE (0x00000000U) #define I2C_GENERALCALL_ENABLE I2C_CR1_GCEN /** * @} */ /** @defgroup I2C_NOSTRETCH_MODE I2C No-Stretch Mode * @{ */ #define I2C_NOSTRETCH_DISABLE (0x00000000U) #define I2C_NOSTRETCH_ENABLE I2C_CR1_NOSTRETCH /** * @} */ /** @defgroup I2C_MEMORY_ADDRESS_SIZE I2C Memory Address Size * @{ */ #define I2C_MEMADD_SIZE_8BIT (0x00000001U) #define I2C_MEMADD_SIZE_16BIT (0x00000002U) /** * @} */ /** @defgroup I2C_XFERDIRECTION I2C Transfer Direction Master Point of View * @{ */ #define I2C_DIRECTION_TRANSMIT (0x00000000U) #define I2C_DIRECTION_RECEIVE (0x00000001U) /** * @} */ /** @defgroup I2C_RELOAD_END_MODE I2C Reload End Mode * @{ */ #define I2C_RELOAD_MODE I2C_CR2_RELOAD #define I2C_AUTOEND_MODE I2C_CR2_AUTOEND #define I2C_SOFTEND_MODE (0x00000000U) /** * @} */ /** @defgroup I2C_START_STOP_MODE I2C Start or Stop Mode * @{ */ #define I2C_NO_STARTSTOP (0x00000000U) #define I2C_GENERATE_STOP (uint32_t)(0x80000000U | I2C_CR2_STOP) #define I2C_GENERATE_START_READ (uint32_t)(0x80000000U | I2C_CR2_START | I2C_CR2_RD_WRN) #define I2C_GENERATE_START_WRITE (uint32_t)(0x80000000U | I2C_CR2_START) /** * @} */ /** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition * @brief I2C Interrupt definition * Elements values convention: 0xXXXXXXXX * - XXXXXXXX : Interrupt control mask * @{ */ #define I2C_IT_ERRI I2C_CR1_ERRIE #define I2C_IT_TCI I2C_CR1_TCIE #define I2C_IT_STOPI I2C_CR1_STOPIE #define I2C_IT_NACKI I2C_CR1_NACKIE #define I2C_IT_ADDRI I2C_CR1_ADDRIE #define I2C_IT_RXI I2C_CR1_RXIE #define I2C_IT_TXI I2C_CR1_TXIE /** * @} */ /** @defgroup I2C_Flag_definition I2C Flag definition * @{ */ #define I2C_FLAG_TXE I2C_ISR_TXE #define I2C_FLAG_TXIS I2C_ISR_TXIS #define I2C_FLAG_RXNE I2C_ISR_RXNE #define I2C_FLAG_ADDR I2C_ISR_ADDR #define I2C_FLAG_AF I2C_ISR_NACKF #define I2C_FLAG_STOPF I2C_ISR_STOPF #define I2C_FLAG_TC I2C_ISR_TC #define I2C_FLAG_TCR I2C_ISR_TCR #define I2C_FLAG_BERR I2C_ISR_BERR #define I2C_FLAG_ARLO I2C_ISR_ARLO #define I2C_FLAG_OVR I2C_ISR_OVR #define I2C_FLAG_PECERR I2C_ISR_PECERR #define I2C_FLAG_TIMEOUT I2C_ISR_TIMEOUT #define I2C_FLAG_ALERT I2C_ISR_ALERT #define I2C_FLAG_BUSY I2C_ISR_BUSY #define I2C_FLAG_DIR I2C_ISR_DIR /** * @} */ /** * @} */ /* Exported macros -----------------------------------------------------------*/ /** @defgroup I2C_Exported_Macros I2C Exported Macros * @{ */ /** @brief Reset I2C handle state. * @param __HANDLE__ specifies the I2C Handle. * @retval None */ #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) do{ \ (__HANDLE__)->State = HAL_I2C_STATE_RESET; \ (__HANDLE__)->MspInitCallback = NULL; \ (__HANDLE__)->MspDeInitCallback = NULL; \ } while(0) #else #define __HAL_I2C_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_I2C_STATE_RESET) #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ /** @brief Enable the specified I2C interrupt. * @param __HANDLE__ specifies the I2C Handle. * @param __INTERRUPT__ specifies the interrupt source to enable. * This parameter can be one of the following values: * @arg @ref I2C_IT_ERRI Errors interrupt enable * @arg @ref I2C_IT_TCI Transfer complete interrupt enable * @arg @ref I2C_IT_STOPI STOP detection interrupt enable * @arg @ref I2C_IT_NACKI NACK received interrupt enable * @arg @ref I2C_IT_ADDRI Address match interrupt enable * @arg @ref I2C_IT_RXI RX interrupt enable * @arg @ref I2C_IT_TXI TX interrupt enable * * @retval None */ #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR1 |= (__INTERRUPT__)) /** @brief Disable the specified I2C interrupt. * @param __HANDLE__ specifies the I2C Handle. * @param __INTERRUPT__ specifies the interrupt source to disable. * This parameter can be one of the following values: * @arg @ref I2C_IT_ERRI Errors interrupt enable * @arg @ref I2C_IT_TCI Transfer complete interrupt enable * @arg @ref I2C_IT_STOPI STOP detection interrupt enable * @arg @ref I2C_IT_NACKI NACK received interrupt enable * @arg @ref I2C_IT_ADDRI Address match interrupt enable * @arg @ref I2C_IT_RXI RX interrupt enable * @arg @ref I2C_IT_TXI TX interrupt enable * * @retval None */ #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__) ((__HANDLE__)->Instance->CR1 &= (~(__INTERRUPT__))) /** @brief Check whether the specified I2C interrupt source is enabled or not. * @param __HANDLE__ specifies the I2C Handle. * @param __INTERRUPT__ specifies the I2C interrupt source to check. * This parameter can be one of the following values: * @arg @ref I2C_IT_ERRI Errors interrupt enable * @arg @ref I2C_IT_TCI Transfer complete interrupt enable * @arg @ref I2C_IT_STOPI STOP detection interrupt enable * @arg @ref I2C_IT_NACKI NACK received interrupt enable * @arg @ref I2C_IT_ADDRI Address match interrupt enable * @arg @ref I2C_IT_RXI RX interrupt enable * @arg @ref I2C_IT_TXI TX interrupt enable * * @retval The new state of __INTERRUPT__ (SET or RESET). */ #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR1 & \ (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) /** @brief Check whether the specified I2C flag is set or not. * @param __HANDLE__ specifies the I2C Handle. * @param __FLAG__ specifies the flag to check. * This parameter can be one of the following values: * @arg @ref I2C_FLAG_TXE Transmit data register empty * @arg @ref I2C_FLAG_TXIS Transmit interrupt status * @arg @ref I2C_FLAG_RXNE Receive data register not empty * @arg @ref I2C_FLAG_ADDR Address matched (slave mode) * @arg @ref I2C_FLAG_AF Acknowledge failure received flag * @arg @ref I2C_FLAG_STOPF STOP detection flag * @arg @ref I2C_FLAG_TC Transfer complete (master mode) * @arg @ref I2C_FLAG_TCR Transfer complete reload * @arg @ref I2C_FLAG_BERR Bus error * @arg @ref I2C_FLAG_ARLO Arbitration lost * @arg @ref I2C_FLAG_OVR Overrun/Underrun * @arg @ref I2C_FLAG_PECERR PEC error in reception * @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag * @arg @ref I2C_FLAG_ALERT SMBus alert * @arg @ref I2C_FLAG_BUSY Bus busy * @arg @ref I2C_FLAG_DIR Transfer direction (slave mode) * * @retval The new state of __FLAG__ (SET or RESET). */ #define I2C_FLAG_MASK (0x0001FFFFU) #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) (((((__HANDLE__)->Instance->ISR) & \ (__FLAG__)) == (__FLAG__)) ? SET : RESET) /** @brief Clear the I2C pending flags which are cleared by writing 1 in a specific bit. * @param __HANDLE__ specifies the I2C Handle. * @param __FLAG__ specifies the flag to clear. * This parameter can be any combination of the following values: * @arg @ref I2C_FLAG_TXE Transmit data register empty * @arg @ref I2C_FLAG_ADDR Address matched (slave mode) * @arg @ref I2C_FLAG_AF Acknowledge failure received flag * @arg @ref I2C_FLAG_STOPF STOP detection flag * @arg @ref I2C_FLAG_BERR Bus error * @arg @ref I2C_FLAG_ARLO Arbitration lost * @arg @ref I2C_FLAG_OVR Overrun/Underrun * @arg @ref I2C_FLAG_PECERR PEC error in reception * @arg @ref I2C_FLAG_TIMEOUT Timeout or Tlow detection flag * @arg @ref I2C_FLAG_ALERT SMBus alert * * @retval None */ #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) (((__FLAG__) == I2C_FLAG_TXE) ? \ ((__HANDLE__)->Instance->ISR |= (__FLAG__)) : \ ((__HANDLE__)->Instance->ICR = (__FLAG__))) /** @brief Enable the specified I2C peripheral. * @param __HANDLE__ specifies the I2C Handle. * @retval None */ #define __HAL_I2C_ENABLE(__HANDLE__) (SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE)) /** @brief Disable the specified I2C peripheral. * @param __HANDLE__ specifies the I2C Handle. * @retval None */ #define __HAL_I2C_DISABLE(__HANDLE__) (CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE)) /** @brief Generate a Non-Acknowledge I2C peripheral in Slave mode. * @param __HANDLE__ specifies the I2C Handle. * @retval None */ #define __HAL_I2C_GENERATE_NACK(__HANDLE__) (SET_BIT((__HANDLE__)->Instance->CR2, I2C_CR2_NACK)) /** * @} */ /* Include I2C HAL Extended module */ #include "stm32l4xx_hal_i2c_ex.h" /* Exported functions --------------------------------------------------------*/ /** @addtogroup I2C_Exported_Functions * @{ */ /** @addtogroup I2C_Exported_Functions_Group1 Initialization and de-initialization functions * @{ */ /* Initialization and de-initialization functions******************************/ HAL_StatusTypeDef HAL_I2C_Init(I2C_HandleTypeDef *hi2c); HAL_StatusTypeDef HAL_I2C_DeInit(I2C_HandleTypeDef *hi2c); void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c); void HAL_I2C_MspDeInit(I2C_HandleTypeDef *hi2c); /* Callbacks Register/UnRegister functions ***********************************/ #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) HAL_StatusTypeDef HAL_I2C_RegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID, pI2C_CallbackTypeDef pCallback); HAL_StatusTypeDef HAL_I2C_UnRegisterCallback(I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID); HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback(I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback); HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback(I2C_HandleTypeDef *hi2c); #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ /** * @} */ /** @addtogroup I2C_Exported_Functions_Group2 Input and Output operation functions * @{ */ /* IO operation functions ****************************************************/ /******* Blocking mode: Polling */ HAL_StatusTypeDef HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_I2C_Master_Receive(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_I2C_Slave_Transmit(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_I2C_Slave_Receive(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_I2C_Mem_Write(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size, uint32_t Timeout); HAL_StatusTypeDef HAL_I2C_IsDeviceReady(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout); /******* Non-Blocking mode: Interrupt */ HAL_StatusTypeDef HAL_I2C_Master_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Master_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Slave_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Slave_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Mem_Write_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Mem_Read_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_IT(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); HAL_StatusTypeDef HAL_I2C_EnableListen_IT(I2C_HandleTypeDef *hi2c); HAL_StatusTypeDef HAL_I2C_DisableListen_IT(I2C_HandleTypeDef *hi2c); HAL_StatusTypeDef HAL_I2C_Master_Abort_IT(I2C_HandleTypeDef *hi2c, uint16_t DevAddress); /******* Non-Blocking mode: DMA */ HAL_StatusTypeDef HAL_I2C_Master_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Master_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Slave_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Slave_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Mem_Write_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size); HAL_StatusTypeDef HAL_I2C_Master_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); HAL_StatusTypeDef HAL_I2C_Master_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions); HAL_StatusTypeDef HAL_I2C_Slave_Seq_Transmit_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); HAL_StatusTypeDef HAL_I2C_Slave_Seq_Receive_DMA(I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions); /** * @} */ /** @addtogroup I2C_IRQ_Handler_and_Callbacks IRQ Handler and Callbacks * @{ */ /******* I2C IRQHandler and Callbacks used in non blocking modes (Interrupt and DMA) */ void HAL_I2C_EV_IRQHandler(I2C_HandleTypeDef *hi2c); void HAL_I2C_ER_IRQHandler(I2C_HandleTypeDef *hi2c); void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_SlaveTxCpltCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_AddrCallback(I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode); void HAL_I2C_ListenCpltCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_MemTxCpltCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_MemRxCpltCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c); void HAL_I2C_AbortCpltCallback(I2C_HandleTypeDef *hi2c); /** * @} */ /** @addtogroup I2C_Exported_Functions_Group3 Peripheral State, Mode and Error functions * @{ */ /* Peripheral State, Mode and Error functions *********************************/ HAL_I2C_StateTypeDef HAL_I2C_GetState(const I2C_HandleTypeDef *hi2c); HAL_I2C_ModeTypeDef HAL_I2C_GetMode(const I2C_HandleTypeDef *hi2c); uint32_t HAL_I2C_GetError(const I2C_HandleTypeDef *hi2c); /** * @} */ /** * @} */ /* Private constants ---------------------------------------------------------*/ /** @defgroup I2C_Private_Constants I2C Private Constants * @{ */ /** * @} */ /* Private macros ------------------------------------------------------------*/ /** @defgroup I2C_Private_Macro I2C Private Macros * @{ */ #define IS_I2C_ADDRESSING_MODE(MODE) (((MODE) == I2C_ADDRESSINGMODE_7BIT) || \ ((MODE) == I2C_ADDRESSINGMODE_10BIT)) #define IS_I2C_DUAL_ADDRESS(ADDRESS) (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \ ((ADDRESS) == I2C_DUALADDRESS_ENABLE)) #define IS_I2C_OWN_ADDRESS2_MASK(MASK) (((MASK) == I2C_OA2_NOMASK) || \ ((MASK) == I2C_OA2_MASK01) || \ ((MASK) == I2C_OA2_MASK02) || \ ((MASK) == I2C_OA2_MASK03) || \ ((MASK) == I2C_OA2_MASK04) || \ ((MASK) == I2C_OA2_MASK05) || \ ((MASK) == I2C_OA2_MASK06) || \ ((MASK) == I2C_OA2_MASK07)) #define IS_I2C_GENERAL_CALL(CALL) (((CALL) == I2C_GENERALCALL_DISABLE) || \ ((CALL) == I2C_GENERALCALL_ENABLE)) #define IS_I2C_NO_STRETCH(STRETCH) (((STRETCH) == I2C_NOSTRETCH_DISABLE) || \ ((STRETCH) == I2C_NOSTRETCH_ENABLE)) #define IS_I2C_MEMADD_SIZE(SIZE) (((SIZE) == I2C_MEMADD_SIZE_8BIT) || \ ((SIZE) == I2C_MEMADD_SIZE_16BIT)) #define IS_TRANSFER_MODE(MODE) (((MODE) == I2C_RELOAD_MODE) || \ ((MODE) == I2C_AUTOEND_MODE) || \ ((MODE) == I2C_SOFTEND_MODE)) #define IS_TRANSFER_REQUEST(REQUEST) (((REQUEST) == I2C_GENERATE_STOP) || \ ((REQUEST) == I2C_GENERATE_START_READ) || \ ((REQUEST) == I2C_GENERATE_START_WRITE) || \ ((REQUEST) == I2C_NO_STARTSTOP)) #define IS_I2C_TRANSFER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_FIRST_FRAME) || \ ((REQUEST) == I2C_FIRST_AND_NEXT_FRAME) || \ ((REQUEST) == I2C_NEXT_FRAME) || \ ((REQUEST) == I2C_FIRST_AND_LAST_FRAME) || \ ((REQUEST) == I2C_LAST_FRAME) || \ ((REQUEST) == I2C_LAST_FRAME_NO_STOP) || \ IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST)) #define IS_I2C_TRANSFER_OTHER_OPTIONS_REQUEST(REQUEST) (((REQUEST) == I2C_OTHER_FRAME) || \ ((REQUEST) == I2C_OTHER_AND_LAST_FRAME)) #define I2C_RESET_CR2(__HANDLE__) ((__HANDLE__)->Instance->CR2 &= \ (uint32_t)~((uint32_t)(I2C_CR2_SADD | I2C_CR2_HEAD10R | \ I2C_CR2_NBYTES | I2C_CR2_RELOAD | \ I2C_CR2_RD_WRN))) #define I2C_GET_ADDR_MATCH(__HANDLE__) ((uint16_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_ADDCODE) \ >> 16U)) #define I2C_GET_DIR(__HANDLE__) ((uint8_t)(((__HANDLE__)->Instance->ISR & I2C_ISR_DIR) \ >> 16U)) #define I2C_GET_STOP_MODE(__HANDLE__) ((__HANDLE__)->Instance->CR2 & I2C_CR2_AUTOEND) #define I2C_GET_OWN_ADDRESS1(__HANDLE__) ((uint16_t)((__HANDLE__)->Instance->OAR1 & I2C_OAR1_OA1)) #define I2C_GET_OWN_ADDRESS2(__HANDLE__) ((uint16_t)((__HANDLE__)->Instance->OAR2 & I2C_OAR2_OA2)) #define IS_I2C_OWN_ADDRESS1(ADDRESS1) ((ADDRESS1) <= 0x000003FFU) #define IS_I2C_OWN_ADDRESS2(ADDRESS2) ((ADDRESS2) <= (uint16_t)0x00FFU) #define I2C_MEM_ADD_MSB(__ADDRESS__) ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & \ (uint16_t)(0xFF00U))) >> 8U))) #define I2C_MEM_ADD_LSB(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)(0x00FFU)))) #define I2C_GENERATE_START(__ADDMODE__,__ADDRESS__) (((__ADDMODE__) == I2C_ADDRESSINGMODE_7BIT) ? \ (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | \ (I2C_CR2_START) | (I2C_CR2_AUTOEND)) & \ (~I2C_CR2_RD_WRN)) : \ (uint32_t)((((uint32_t)(__ADDRESS__) & (I2C_CR2_SADD)) | \ (I2C_CR2_ADD10) | (I2C_CR2_START) | \ (I2C_CR2_AUTOEND)) & (~I2C_CR2_RD_WRN))) #define I2C_CHECK_FLAG(__ISR__, __FLAG__) ((((__ISR__) & ((__FLAG__) & I2C_FLAG_MASK)) == \ ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET) #define I2C_CHECK_IT_SOURCE(__CR1__, __IT__) ((((__CR1__) & (__IT__)) == (__IT__)) ? SET : RESET) /** * @} */ /* Private Functions ---------------------------------------------------------*/ /** @defgroup I2C_Private_Functions I2C Private Functions * @{ */ /* Private functions are defined in stm32l4xx_hal_i2c.c file */ /** * @} */ /** * @} */ /** * @} */ #ifdef __cplusplus } #endif #endif /* STM32L4xx_HAL_I2C_H */