| /** |
| ****************************************************************************** |
| * @file stm32f4xx_hal_i2c.h |
| * @author MCD Application Team |
| * @brief Header file of I2C HAL module. |
| ****************************************************************************** |
| * @attention |
| * |
| * Copyright (c) 2016 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 __STM32F4xx_HAL_I2C_H |
| #define __STM32F4xx_HAL_I2C_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f4xx_hal_def.h" |
| |
| /** @addtogroup STM32F4xx_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 ClockSpeed; /*!< Specifies the clock frequency. |
| This parameter must be set to a value lower than 400kHz */ |
| |
| uint32_t DutyCycle; /*!< Specifies the I2C fast mode duty cycle. |
| This parameter can be a value of @ref I2C_duty_cycle_in_fast_mode */ |
| |
| 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 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 : |
| * b7-b6 Error information |
| * 00 : No Error |
| * 01 : Abort (Abort user request on going) |
| * 10 : Timeout |
| * 11 : Error |
| * b5 Peripheral initialization status |
| * 0 : Reset (Peripheral not initialized) |
| * 1 : Init done (Peripheral initialized and ready to use. HAL I2C Init function called) |
| * b4 (not used) |
| * x : Should be set to 0 |
| * b3 |
| * 0 : Ready or Busy (No Listen mode ongoing) |
| * 1 : Listen (Peripheral in Address Listen Mode) |
| * b2 Intrinsic process state |
| * 0 : Ready |
| * 1 : Busy (Peripheral busy with some configuration or internal operations) |
| * b1 Rx state |
| * 0 : Ready (no Rx operation ongoing) |
| * 1 : Busy (Rx operation ongoing) |
| * b0 Tx state |
| * 0 : Ready (no Tx operation ongoing) |
| * 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 /*!< AF 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 */ |
| #define HAL_I2C_WRONG_START 0x00000200U /*!< Wrong start Error */ |
| #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) |
| #define HAL_I2C_ERROR_INVALID_CALLBACK 0x00000100U /*!< Invalid Callback error */ |
| #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_handle_Structure_definition I2C handle Structure definition |
| * @brief I2C handle Structure definition |
| * @{ |
| */ |
| #if (USE_HAL_I2C_REGISTER_CALLBACKS == 1) |
| typedef struct __I2C_HandleTypeDef |
| #else |
| typedef struct |
| #endif /* USE_HAL_I2C_REGISTER_CALLBACKS */ |
| { |
| 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 transfer options */ |
| |
| __IO uint32_t PreviousState; /*!< I2C communication Previous state and mode |
| context for internal usage */ |
| |
| 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 Devaddress; /*!< I2C Target device address */ |
| |
| __IO uint32_t Memaddress; /*!< I2C Target memory address */ |
| |
| __IO uint32_t MemaddSize; /*!< I2C Target memory address size */ |
| |
| __IO uint32_t EventCount; /*!< I2C Event counter */ |
| |
| |
| #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_duty_cycle_in_fast_mode I2C duty cycle in fast mode |
| * @{ |
| */ |
| #define I2C_DUTYCYCLE_2 0x00000000U |
| #define I2C_DUTYCYCLE_16_9 I2C_CCR_DUTY |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_addressing_mode I2C addressing mode |
| * @{ |
| */ |
| #define I2C_ADDRESSINGMODE_7BIT 0x00004000U |
| #define I2C_ADDRESSINGMODE_10BIT (I2C_OAR1_ADDMODE | 0x00004000U) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_dual_addressing_mode I2C dual addressing mode |
| * @{ |
| */ |
| #define I2C_DUALADDRESS_DISABLE 0x00000000U |
| #define I2C_DUALADDRESS_ENABLE I2C_OAR2_ENDUAL |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_general_call_addressing_mode I2C general call addressing mode |
| * @{ |
| */ |
| #define I2C_GENERALCALL_DISABLE 0x00000000U |
| #define I2C_GENERALCALL_ENABLE I2C_CR1_ENGC |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_nostretch_mode I2C nostretch 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 0x00000010U |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_XferDirection_definition I2C XferDirection definition |
| * @{ |
| */ |
| #define I2C_DIRECTION_RECEIVE 0x00000000U |
| #define I2C_DIRECTION_TRANSMIT 0x00000001U |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_XferOptions_definition I2C XferOptions definition |
| * @{ |
| */ |
| #define I2C_FIRST_FRAME 0x00000001U |
| #define I2C_FIRST_AND_NEXT_FRAME 0x00000002U |
| #define I2C_NEXT_FRAME 0x00000004U |
| #define I2C_FIRST_AND_LAST_FRAME 0x00000008U |
| #define I2C_LAST_FRAME_NO_STOP 0x00000010U |
| #define I2C_LAST_FRAME 0x00000020U |
| |
| /* List of XferOptions in usage of : |
| * 1- Restart condition in all use cases (direction change or not) |
| */ |
| #define I2C_OTHER_FRAME (0x00AA0000U) |
| #define I2C_OTHER_AND_LAST_FRAME (0xAA000000U) |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_Interrupt_configuration_definition I2C Interrupt configuration definition |
| * @brief I2C Interrupt definition |
| * Elements values convention: 0xXXXXXXXX |
| * - XXXXXXXX : Interrupt control mask |
| * @{ |
| */ |
| #define I2C_IT_BUF I2C_CR2_ITBUFEN |
| #define I2C_IT_EVT I2C_CR2_ITEVTEN |
| #define I2C_IT_ERR I2C_CR2_ITERREN |
| /** |
| * @} |
| */ |
| |
| /** @defgroup I2C_Flag_definition I2C Flag definition |
| * @{ |
| */ |
| |
| #define I2C_FLAG_OVR 0x00010800U |
| #define I2C_FLAG_AF 0x00010400U |
| #define I2C_FLAG_ARLO 0x00010200U |
| #define I2C_FLAG_BERR 0x00010100U |
| #define I2C_FLAG_TXE 0x00010080U |
| #define I2C_FLAG_RXNE 0x00010040U |
| #define I2C_FLAG_STOPF 0x00010010U |
| #define I2C_FLAG_ADD10 0x00010008U |
| #define I2C_FLAG_BTF 0x00010004U |
| #define I2C_FLAG_ADDR 0x00010002U |
| #define I2C_FLAG_SB 0x00010001U |
| #define I2C_FLAG_DUALF 0x00100080U |
| #define I2C_FLAG_GENCALL 0x00100010U |
| #define I2C_FLAG_TRA 0x00100004U |
| #define I2C_FLAG_BUSY 0x00100002U |
| #define I2C_FLAG_MSL 0x00100001U |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /* 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 |
| |
| /** @brief Enable or disable the specified I2C interrupts. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * @param __INTERRUPT__ specifies the interrupt source to enable or disable. |
| * This parameter can be one of the following values: |
| * @arg I2C_IT_BUF: Buffer interrupt enable |
| * @arg I2C_IT_EVT: Event interrupt enable |
| * @arg I2C_IT_ERR: Error interrupt enable |
| * @retval None |
| */ |
| #define __HAL_I2C_ENABLE_IT(__HANDLE__, __INTERRUPT__) SET_BIT((__HANDLE__)->Instance->CR2,(__INTERRUPT__)) |
| #define __HAL_I2C_DISABLE_IT(__HANDLE__, __INTERRUPT__) CLEAR_BIT((__HANDLE__)->Instance->CR2, (__INTERRUPT__)) |
| |
| /** @brief Checks if the specified I2C interrupt source is enabled or disabled. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * @param __INTERRUPT__ specifies the I2C interrupt source to check. |
| * This parameter can be one of the following values: |
| * @arg I2C_IT_BUF: Buffer interrupt enable |
| * @arg I2C_IT_EVT: Event interrupt enable |
| * @arg I2C_IT_ERR: Error interrupt enable |
| * @retval The new state of __INTERRUPT__ (TRUE or FALSE). |
| */ |
| #define __HAL_I2C_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) ((((__HANDLE__)->Instance->CR2 & (__INTERRUPT__)) == (__INTERRUPT__)) ? SET : RESET) |
| |
| /** @brief Checks whether the specified I2C flag is set or not. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * @param __FLAG__ specifies the flag to check. |
| * This parameter can be one of the following values: |
| * @arg I2C_FLAG_OVR: Overrun/Underrun flag |
| * @arg I2C_FLAG_AF: Acknowledge failure flag |
| * @arg I2C_FLAG_ARLO: Arbitration lost flag |
| * @arg I2C_FLAG_BERR: Bus error flag |
| * @arg I2C_FLAG_TXE: Data register empty flag |
| * @arg I2C_FLAG_RXNE: Data register not empty flag |
| * @arg I2C_FLAG_STOPF: Stop detection flag |
| * @arg I2C_FLAG_ADD10: 10-bit header sent flag |
| * @arg I2C_FLAG_BTF: Byte transfer finished flag |
| * @arg I2C_FLAG_ADDR: Address sent flag |
| * Address matched flag |
| * @arg I2C_FLAG_SB: Start bit flag |
| * @arg I2C_FLAG_DUALF: Dual flag |
| * @arg I2C_FLAG_GENCALL: General call header flag |
| * @arg I2C_FLAG_TRA: Transmitter/Receiver flag |
| * @arg I2C_FLAG_BUSY: Bus busy flag |
| * @arg I2C_FLAG_MSL: Master/Slave flag |
| * @retval The new state of __FLAG__ (TRUE or FALSE). |
| */ |
| #define __HAL_I2C_GET_FLAG(__HANDLE__, __FLAG__) ((((uint8_t)((__FLAG__) >> 16U)) == 0x01U) ? \ |
| (((((__HANDLE__)->Instance->SR1) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET) : \ |
| (((((__HANDLE__)->Instance->SR2) & ((__FLAG__) & I2C_FLAG_MASK)) == ((__FLAG__) & I2C_FLAG_MASK)) ? SET : RESET)) |
| |
| /** @brief Clears the I2C pending flags which are cleared by writing 0 in a specific bit. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * @param __FLAG__ specifies the flag to clear. |
| * This parameter can be any combination of the following values: |
| * @arg I2C_FLAG_OVR: Overrun/Underrun flag (Slave mode) |
| * @arg I2C_FLAG_AF: Acknowledge failure flag |
| * @arg I2C_FLAG_ARLO: Arbitration lost flag (Master mode) |
| * @arg I2C_FLAG_BERR: Bus error flag |
| * @retval None |
| */ |
| #define __HAL_I2C_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR1 = ~((__FLAG__) & I2C_FLAG_MASK)) |
| |
| /** @brief Clears the I2C ADDR pending flag. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * This parameter can be I2C where x: 1, 2, or 3 to select the I2C peripheral. |
| * @retval None |
| */ |
| #define __HAL_I2C_CLEAR_ADDRFLAG(__HANDLE__) \ |
| do{ \ |
| __IO uint32_t tmpreg = 0x00U; \ |
| tmpreg = (__HANDLE__)->Instance->SR1; \ |
| tmpreg = (__HANDLE__)->Instance->SR2; \ |
| UNUSED(tmpreg); \ |
| } while(0) |
| |
| /** @brief Clears the I2C STOPF pending flag. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * @retval None |
| */ |
| #define __HAL_I2C_CLEAR_STOPFLAG(__HANDLE__) \ |
| do{ \ |
| __IO uint32_t tmpreg = 0x00U; \ |
| tmpreg = (__HANDLE__)->Instance->SR1; \ |
| SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE); \ |
| UNUSED(tmpreg); \ |
| } while(0) |
| |
| /** @brief Enable the specified I2C peripheral. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * @retval None |
| */ |
| #define __HAL_I2C_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE) |
| |
| /** @brief Disable the specified I2C peripheral. |
| * @param __HANDLE__ specifies the I2C Handle. |
| * @retval None |
| */ |
| #define __HAL_I2C_DISABLE(__HANDLE__) CLEAR_BIT((__HANDLE__)->Instance->CR1, I2C_CR1_PE) |
| |
| /** |
| * @} |
| */ |
| |
| /* Include I2C HAL Extension module */ |
| #include "stm32f4xx_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(I2C_HandleTypeDef *hi2c); |
| HAL_I2C_ModeTypeDef HAL_I2C_GetMode(I2C_HandleTypeDef *hi2c); |
| uint32_t HAL_I2C_GetError(I2C_HandleTypeDef *hi2c); |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| /* Private types -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private constants ---------------------------------------------------------*/ |
| /** @defgroup I2C_Private_Constants I2C Private Constants |
| * @{ |
| */ |
| #define I2C_FLAG_MASK 0x0000FFFFU |
| #define I2C_MIN_PCLK_FREQ_STANDARD 2000000U /*!< 2 MHz */ |
| #define I2C_MIN_PCLK_FREQ_FAST 4000000U /*!< 4 MHz */ |
| /** |
| * @} |
| */ |
| |
| /* Private macros ------------------------------------------------------------*/ |
| /** @defgroup I2C_Private_Macros I2C Private Macros |
| * @{ |
| */ |
| |
| #define I2C_MIN_PCLK_FREQ(__PCLK__, __SPEED__) (((__SPEED__) <= 100000U) ? ((__PCLK__) < I2C_MIN_PCLK_FREQ_STANDARD) : ((__PCLK__) < I2C_MIN_PCLK_FREQ_FAST)) |
| #define I2C_CCR_CALCULATION(__PCLK__, __SPEED__, __COEFF__) (((((__PCLK__) - 1U)/((__SPEED__) * (__COEFF__))) + 1U) & I2C_CCR_CCR) |
| #define I2C_FREQRANGE(__PCLK__) ((__PCLK__)/1000000U) |
| #define I2C_RISE_TIME(__FREQRANGE__, __SPEED__) (((__SPEED__) <= 100000U) ? ((__FREQRANGE__) + 1U) : ((((__FREQRANGE__) * 300U) / 1000U) + 1U)) |
| #define I2C_SPEED_STANDARD(__PCLK__, __SPEED__) ((I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 2U) < 4U)? 4U:I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 2U)) |
| #define I2C_SPEED_FAST(__PCLK__, __SPEED__, __DUTYCYCLE__) (((__DUTYCYCLE__) == I2C_DUTYCYCLE_2)? I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 3U) : (I2C_CCR_CALCULATION((__PCLK__), (__SPEED__), 25U) | I2C_DUTYCYCLE_16_9)) |
| #define I2C_SPEED(__PCLK__, __SPEED__, __DUTYCYCLE__) (((__SPEED__) <= 100000U)? (I2C_SPEED_STANDARD((__PCLK__), (__SPEED__))) : \ |
| ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__)) & I2C_CCR_CCR) == 0U)? 1U : \ |
| ((I2C_SPEED_FAST((__PCLK__), (__SPEED__), (__DUTYCYCLE__))) | I2C_CCR_FS)) |
| |
| #define I2C_7BIT_ADD_WRITE(__ADDRESS__) ((uint8_t)((__ADDRESS__) & (uint8_t)(~I2C_OAR1_ADD0))) |
| #define I2C_7BIT_ADD_READ(__ADDRESS__) ((uint8_t)((__ADDRESS__) | I2C_OAR1_ADD0)) |
| |
| #define I2C_10BIT_ADDRESS(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)0x00FF))) |
| #define I2C_10BIT_HEADER_WRITE(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0x0300)) >> 7) | (uint16_t)0x00F0))) |
| #define I2C_10BIT_HEADER_READ(__ADDRESS__) ((uint8_t)((uint16_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0x0300)) >> 7) | (uint16_t)(0x00F1)))) |
| |
| #define I2C_MEM_ADD_MSB(__ADDRESS__) ((uint8_t)((uint16_t)(((uint16_t)((__ADDRESS__) & (uint16_t)0xFF00)) >> 8))) |
| #define I2C_MEM_ADD_LSB(__ADDRESS__) ((uint8_t)((uint16_t)((__ADDRESS__) & (uint16_t)0x00FF))) |
| |
| /** @defgroup I2C_IS_RTC_Definitions I2C Private macros to check input parameters |
| * @{ |
| */ |
| #define IS_I2C_DUTY_CYCLE(CYCLE) (((CYCLE) == I2C_DUTYCYCLE_2) || \ |
| ((CYCLE) == I2C_DUTYCYCLE_16_9)) |
| #define IS_I2C_ADDRESSING_MODE(ADDRESS) (((ADDRESS) == I2C_ADDRESSINGMODE_7BIT) || \ |
| ((ADDRESS) == I2C_ADDRESSINGMODE_10BIT)) |
| #define IS_I2C_DUAL_ADDRESS(ADDRESS) (((ADDRESS) == I2C_DUALADDRESS_DISABLE) || \ |
| ((ADDRESS) == I2C_DUALADDRESS_ENABLE)) |
| #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_I2C_CLOCK_SPEED(SPEED) (((SPEED) > 0U) && ((SPEED) <= 400000U)) |
| #define IS_I2C_OWN_ADDRESS1(ADDRESS1) (((ADDRESS1) & 0xFFFFFC00U) == 0U) |
| #define IS_I2C_OWN_ADDRESS2(ADDRESS2) (((ADDRESS2) & 0xFFFFFF01U) == 0U) |
| #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_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 |
| * @{ |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| |
| #endif /* __STM32F4xx_HAL_I2C_H */ |
| |
