Initialization and de-initialization functions

Initialization and Configuration functions. More...

Functions
HAL_StatusTypeDef	HAL_I2C_Init (I2C_HandleTypeDef *hi2c)
	Initializes the I2C according to the specified parameters in the I2C_InitTypeDef and initialize the associated handle.
HAL_StatusTypeDef	HAL_I2C_DeInit (I2C_HandleTypeDef *hi2c)
	DeInitialize the I2C peripheral.
__weak void	HAL_I2C_MspInit (I2C_HandleTypeDef *hi2c)
	Initialize the I2C MSP.
__weak void	HAL_I2C_MspDeInit (I2C_HandleTypeDef *hi2c)
	DeInitialize the I2C MSP.
HAL_StatusTypeDef	HAL_I2C_RegisterCallback (I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID, pI2C_CallbackTypeDef pCallback)
	Register a User I2C Callback To be used instead of the weak predefined callback.
HAL_StatusTypeDef	HAL_I2C_UnRegisterCallback (I2C_HandleTypeDef *hi2c, HAL_I2C_CallbackIDTypeDef CallbackID)
	Unregister an I2C Callback I2C callback is redirected to the weak predefined callback.
HAL_StatusTypeDef	HAL_I2C_RegisterAddrCallback (I2C_HandleTypeDef *hi2c, pI2C_AddrCallbackTypeDef pCallback)
	Register the Slave Address Match I2C Callback To be used instead of the weak HAL_I2C_AddrCallback() predefined callback.
HAL_StatusTypeDef	HAL_I2C_UnRegisterAddrCallback (I2C_HandleTypeDef *hi2c)
	UnRegister the Slave Address Match I2C Callback Info Ready I2C Callback is redirected to the weak HAL_I2C_AddrCallback() predefined callback.

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Detailed Description

Initialization and Configuration functions.

 ===============================================================================
              ##### Initialization and de-initialization functions #####
 ===============================================================================
    [..]  This subsection provides a set of functions allowing to initialize and
          deinitialize the I2Cx peripheral:

      (+) User must Implement HAL_I2C_MspInit() function in which he configures
          all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ).

      (+) Call the function HAL_I2C_Init() to configure the selected device with
          the selected configuration:
        (++) Clock Timing
        (++) Own Address 1
        (++) Addressing mode (Master, Slave)
        (++) Dual Addressing mode
        (++) Own Address 2
        (++) Own Address 2 Mask
        (++) General call mode
        (++) Nostretch mode

      (+) Call the function HAL_I2C_DeInit() to restore the default configuration
          of the selected I2Cx peripheral.

---

Function Documentation

HAL_StatusTypeDef HAL_I2C_DeInit

(

I2C_HandleTypeDef *

hi2c

)

DeInitialize the I2C peripheral.

Parameters:

hi2c	Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.

Return values:

HAL

status

Definition at line 634 of file stm32l4xx_hal_i2c.c.

References __HAL_I2C_DISABLE, assert_param, __I2C_HandleTypeDef::ErrorCode, HAL_I2C_ERROR_NONE, HAL_I2C_MODE_NONE, HAL_I2C_MspDeInit(), HAL_I2C_STATE_BUSY, HAL_I2C_STATE_RESET, I2C_STATE_NONE, __I2C_HandleTypeDef::Instance, __I2C_HandleTypeDef::Mode, __I2C_HandleTypeDef::MspDeInitCallback, __I2C_HandleTypeDef::PreviousState, and __I2C_HandleTypeDef::State.

HAL_StatusTypeDef HAL_I2C_Init

(

I2C_HandleTypeDef *

hi2c

)

Initializes the I2C according to the specified parameters in the I2C_InitTypeDef and initialize the associated handle.

Parameters:

hi2c	Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.

Return values:

HAL

status

Definition at line 524 of file stm32l4xx_hal_i2c.c.

References __HAL_I2C_DISABLE, __HAL_I2C_ENABLE, __I2C_HandleTypeDef::AbortCpltCallback, __I2C_HandleTypeDef::AddrCallback, I2C_InitTypeDef::AddressingMode, assert_param, I2C_InitTypeDef::DualAddressMode, __I2C_HandleTypeDef::ErrorCallback, __I2C_HandleTypeDef::ErrorCode, I2C_InitTypeDef::GeneralCallMode, HAL_I2C_AbortCpltCallback(), HAL_I2C_AddrCallback(), HAL_I2C_ERROR_NONE, HAL_I2C_ErrorCallback(), HAL_I2C_ListenCpltCallback(), HAL_I2C_MasterRxCpltCallback(), HAL_I2C_MasterTxCpltCallback(), HAL_I2C_MemRxCpltCallback(), HAL_I2C_MemTxCpltCallback(), HAL_I2C_MODE_NONE, HAL_I2C_MspInit(), HAL_I2C_SlaveRxCpltCallback(), HAL_I2C_SlaveTxCpltCallback(), HAL_I2C_STATE_BUSY, HAL_I2C_STATE_READY, HAL_I2C_STATE_RESET, I2C_ADDRESSINGMODE_10BIT, I2C_ADDRESSINGMODE_7BIT, I2C_DUALADDRESS_ENABLE, I2C_STATE_NONE, __I2C_HandleTypeDef::Init, __I2C_HandleTypeDef::Instance, IS_I2C_ADDRESSING_MODE, IS_I2C_DUAL_ADDRESS, IS_I2C_GENERAL_CALL, IS_I2C_NO_STRETCH, IS_I2C_OWN_ADDRESS1, IS_I2C_OWN_ADDRESS2, IS_I2C_OWN_ADDRESS2_MASK, __I2C_HandleTypeDef::ListenCpltCallback, __I2C_HandleTypeDef::Lock, __I2C_HandleTypeDef::MasterRxCpltCallback, __I2C_HandleTypeDef::MasterTxCpltCallback, __I2C_HandleTypeDef::MemRxCpltCallback, __I2C_HandleTypeDef::MemTxCpltCallback, __I2C_HandleTypeDef::Mode, __I2C_HandleTypeDef::MspInitCallback, I2C_InitTypeDef::NoStretchMode, I2C_InitTypeDef::OwnAddress1, I2C_InitTypeDef::OwnAddress2, I2C_InitTypeDef::OwnAddress2Masks, __I2C_HandleTypeDef::PreviousState, __I2C_HandleTypeDef::SlaveRxCpltCallback, __I2C_HandleTypeDef::SlaveTxCpltCallback, __I2C_HandleTypeDef::State, I2C_InitTypeDef::Timing, and TIMING_CLEAR_MASK.

void HAL_I2C_MspDeInit

(

I2C_HandleTypeDef *

hi2c

)

DeInitialize the I2C MSP.

Parameters:

hi2c	Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.

Return values:

None

Definition at line 696 of file stm32l4xx_hal_i2c.c.

Referenced by HAL_I2C_DeInit(), and HAL_I2C_UnRegisterCallback().

void HAL_I2C_MspInit

(

I2C_HandleTypeDef *

hi2c

)

Initialize the I2C MSP.

Parameters:

hi2c	Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.

Return values:

None

Definition at line 680 of file stm32l4xx_hal_i2c.c.

Referenced by HAL_I2C_Init(), and HAL_I2C_UnRegisterCallback().

HAL_StatusTypeDef HAL_I2C_RegisterAddrCallback	(	I2C_HandleTypeDef *	hi2c,
		pI2C_AddrCallbackTypeDef	pCallback
	)

Register the Slave Address Match I2C Callback To be used instead of the weak HAL_I2C_AddrCallback() predefined callback.

Parameters:

hi2c	Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.
pCallback	pointer to the Address Match Callback function

Return values:

HAL

status

Definition at line 963 of file stm32l4xx_hal_i2c.c.

References __I2C_HandleTypeDef::AddrCallback, __I2C_HandleTypeDef::ErrorCode, HAL_I2C_ERROR_INVALID_CALLBACK, HAL_I2C_STATE_READY, and __I2C_HandleTypeDef::State.

HAL_StatusTypeDef HAL_I2C_RegisterCallback	(	I2C_HandleTypeDef *	hi2c,
		HAL_I2C_CallbackIDTypeDef	CallbackID,
		pI2C_CallbackTypeDef	pCallback
	)

Register a User I2C Callback To be used instead of the weak predefined callback.

Parameters:

hi2c	Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.
CallbackID	ID of the callback to be registered This parameter can be one of the following values: HAL_I2C_MASTER_TX_COMPLETE_CB_ID Master Tx Transfer completed callback ID HAL_I2C_MASTER_RX_COMPLETE_CB_ID Master Rx Transfer completed callback ID HAL_I2C_SLAVE_TX_COMPLETE_CB_ID Slave Tx Transfer completed callback ID HAL_I2C_SLAVE_RX_COMPLETE_CB_ID Slave Rx Transfer completed callback ID HAL_I2C_LISTEN_COMPLETE_CB_ID Listen Complete callback ID HAL_I2C_MEM_TX_COMPLETE_CB_ID Memory Tx Transfer callback ID HAL_I2C_MEM_RX_COMPLETE_CB_ID Memory Rx Transfer completed callback ID HAL_I2C_ERROR_CB_ID Error callback ID HAL_I2C_ABORT_CB_ID Abort callback ID HAL_I2C_MSPINIT_CB_ID MspInit callback ID HAL_I2C_MSPDEINIT_CB_ID MspDeInit callback ID
pCallback	pointer to the Callback function

Return values:

HAL

status

Definition at line 728 of file stm32l4xx_hal_i2c.c.

References __I2C_HandleTypeDef::AbortCpltCallback, __I2C_HandleTypeDef::ErrorCallback, __I2C_HandleTypeDef::ErrorCode, HAL_I2C_ABORT_CB_ID, HAL_I2C_ERROR_CB_ID, HAL_I2C_ERROR_INVALID_CALLBACK, HAL_I2C_LISTEN_COMPLETE_CB_ID, HAL_I2C_MASTER_RX_COMPLETE_CB_ID, HAL_I2C_MASTER_TX_COMPLETE_CB_ID, HAL_I2C_MEM_RX_COMPLETE_CB_ID, HAL_I2C_MEM_TX_COMPLETE_CB_ID, HAL_I2C_MSPDEINIT_CB_ID, HAL_I2C_MSPINIT_CB_ID, HAL_I2C_SLAVE_RX_COMPLETE_CB_ID, HAL_I2C_SLAVE_TX_COMPLETE_CB_ID, HAL_I2C_STATE_READY, HAL_I2C_STATE_RESET, __I2C_HandleTypeDef::ListenCpltCallback, __I2C_HandleTypeDef::MasterRxCpltCallback, __I2C_HandleTypeDef::MasterTxCpltCallback, __I2C_HandleTypeDef::MemRxCpltCallback, __I2C_HandleTypeDef::MemTxCpltCallback, __I2C_HandleTypeDef::MspDeInitCallback, __I2C_HandleTypeDef::MspInitCallback, __I2C_HandleTypeDef::SlaveRxCpltCallback, __I2C_HandleTypeDef::SlaveTxCpltCallback, and __I2C_HandleTypeDef::State.

HAL_StatusTypeDef HAL_I2C_UnRegisterAddrCallback

(

I2C_HandleTypeDef *

hi2c

)

UnRegister the Slave Address Match I2C Callback Info Ready I2C Callback is redirected to the weak HAL_I2C_AddrCallback() predefined callback.

Parameters:

hi2c	Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.

Return values:

HAL

status

Definition at line 1002 of file stm32l4xx_hal_i2c.c.

References __I2C_HandleTypeDef::AddrCallback, __I2C_HandleTypeDef::ErrorCode, HAL_I2C_AddrCallback(), HAL_I2C_ERROR_INVALID_CALLBACK, HAL_I2C_STATE_READY, and __I2C_HandleTypeDef::State.

HAL_StatusTypeDef HAL_I2C_UnRegisterCallback	(	I2C_HandleTypeDef *	hi2c,
		HAL_I2C_CallbackIDTypeDef	CallbackID
	)

Unregister an I2C Callback I2C callback is redirected to the weak predefined callback.

Parameters:

hi2c

Pointer to a I2C_HandleTypeDef structure that contains the configuration information for the specified I2C.

CallbackID

ID of the callback to be unregistered This parameter can be one of the following values: This parameter can be one of the following values: HAL_I2C_MASTER_TX_COMPLETE_CB_ID Master Tx Transfer completed callback ID HAL_I2C_MASTER_RX_COMPLETE_CB_ID Master Rx Transfer completed callback ID HAL_I2C_SLAVE_TX_COMPLETE_CB_ID Slave Tx Transfer completed callback ID HAL_I2C_SLAVE_RX_COMPLETE_CB_ID Slave Rx Transfer completed callback ID HAL_I2C_LISTEN_COMPLETE_CB_ID Listen Complete callback ID HAL_I2C_MEM_TX_COMPLETE_CB_ID Memory Tx Transfer callback ID HAL_I2C_MEM_RX_COMPLETE_CB_ID Memory Rx Transfer completed callback ID HAL_I2C_ERROR_CB_ID Error callback ID HAL_I2C_ABORT_CB_ID Abort callback ID HAL_I2C_MSPINIT_CB_ID MspInit callback ID HAL_I2C_MSPDEINIT_CB_ID MspDeInit callback ID

Return values:

HAL

status

Definition at line 856 of file stm32l4xx_hal_i2c.c.

References __I2C_HandleTypeDef::AbortCpltCallback, __I2C_HandleTypeDef::ErrorCallback, __I2C_HandleTypeDef::ErrorCode, HAL_I2C_ABORT_CB_ID, HAL_I2C_AbortCpltCallback(), HAL_I2C_ERROR_CB_ID, HAL_I2C_ERROR_INVALID_CALLBACK, HAL_I2C_ErrorCallback(), HAL_I2C_LISTEN_COMPLETE_CB_ID, HAL_I2C_ListenCpltCallback(), HAL_I2C_MASTER_RX_COMPLETE_CB_ID, HAL_I2C_MASTER_TX_COMPLETE_CB_ID, HAL_I2C_MasterRxCpltCallback(), HAL_I2C_MasterTxCpltCallback(), HAL_I2C_MEM_RX_COMPLETE_CB_ID, HAL_I2C_MEM_TX_COMPLETE_CB_ID, HAL_I2C_MemRxCpltCallback(), HAL_I2C_MemTxCpltCallback(), HAL_I2C_MspDeInit(), HAL_I2C_MSPDEINIT_CB_ID, HAL_I2C_MspInit(), HAL_I2C_MSPINIT_CB_ID, HAL_I2C_SLAVE_RX_COMPLETE_CB_ID, HAL_I2C_SLAVE_TX_COMPLETE_CB_ID, HAL_I2C_SlaveRxCpltCallback(), HAL_I2C_SlaveTxCpltCallback(), HAL_I2C_STATE_READY, HAL_I2C_STATE_RESET, __I2C_HandleTypeDef::ListenCpltCallback, __I2C_HandleTypeDef::MasterRxCpltCallback, __I2C_HandleTypeDef::MasterTxCpltCallback, __I2C_HandleTypeDef::MemRxCpltCallback, __I2C_HandleTypeDef::MemTxCpltCallback, __I2C_HandleTypeDef::MspDeInitCallback, __I2C_HandleTypeDef::MspInitCallback, __I2C_HandleTypeDef::SlaveRxCpltCallback, __I2C_HandleTypeDef::SlaveTxCpltCallback, and __I2C_HandleTypeDef::State.