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STM32L443xx HAL User Manual
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I2C HAL module driver. This file provides firmware functions to manage the following functionalities of the Inter Integrated Circuit (I2C) peripheral: + Initialization and de-initialization functions + IO operation functions + Peripheral State and Errors functions. More...
#include "stm32l4xx_hal.h"Go to the source code of this file.
Defines | |
| #define | TIMING_CLEAR_MASK (0xF0FFFFFFU) |
| #define | I2C_TIMEOUT_ADDR (10000U) |
| #define | I2C_TIMEOUT_BUSY (25U) |
| #define | I2C_TIMEOUT_DIR (25U) |
| #define | I2C_TIMEOUT_RXNE (25U) |
| #define | I2C_TIMEOUT_STOPF (25U) |
| #define | I2C_TIMEOUT_TC (25U) |
| #define | I2C_TIMEOUT_TCR (25U) |
| #define | I2C_TIMEOUT_TXIS (25U) |
| #define | I2C_TIMEOUT_FLAG (25U) |
| #define | MAX_NBYTE_SIZE 255U |
| #define | SLAVE_ADDR_SHIFT 7U |
| #define | SLAVE_ADDR_MSK 0x06U |
| #define | I2C_STATE_MSK |
| #define | I2C_STATE_NONE ((uint32_t)(HAL_I2C_MODE_NONE)) |
| #define | I2C_STATE_MASTER_BUSY_TX |
| #define | I2C_STATE_MASTER_BUSY_RX |
| #define | I2C_STATE_SLAVE_BUSY_TX |
| #define | I2C_STATE_SLAVE_BUSY_RX |
| #define | I2C_STATE_MEM_BUSY_TX |
| #define | I2C_STATE_MEM_BUSY_RX |
| #define | I2C_XFER_TX_IT (uint16_t)(0x0001U) |
| #define | I2C_XFER_RX_IT (uint16_t)(0x0002U) |
| #define | I2C_XFER_LISTEN_IT (uint16_t)(0x8000U) |
| #define | I2C_XFER_ERROR_IT (uint16_t)(0x0010U) |
| #define | I2C_XFER_CPLT_IT (uint16_t)(0x0020U) |
| #define | I2C_XFER_RELOAD_IT (uint16_t)(0x0040U) |
| #define | I2C_NO_OPTION_FRAME (0xFFFF0000U) |
| #define | I2C_GET_DMA_REMAIN_DATA(__HANDLE__) __HAL_DMA_GET_COUNTER(__HANDLE__) |
Functions | |
| static void | I2C_DMAMasterTransmitCplt (DMA_HandleTypeDef *hdma) |
| DMA I2C master transmit process complete callback. | |
| static void | I2C_DMAMasterReceiveCplt (DMA_HandleTypeDef *hdma) |
| DMA I2C master receive process complete callback. | |
| static void | I2C_DMASlaveTransmitCplt (DMA_HandleTypeDef *hdma) |
| DMA I2C slave transmit process complete callback. | |
| static void | I2C_DMASlaveReceiveCplt (DMA_HandleTypeDef *hdma) |
| DMA I2C slave receive process complete callback. | |
| static void | I2C_DMAError (DMA_HandleTypeDef *hdma) |
| DMA I2C communication error callback. | |
| static void | I2C_DMAAbort (DMA_HandleTypeDef *hdma) |
| DMA I2C communication abort callback (To be called at end of DMA Abort procedure). | |
| static void | I2C_ITAddrCplt (I2C_HandleTypeDef *hi2c, uint32_t ITFlags) |
| I2C Address complete process callback. | |
| static void | I2C_ITMasterSeqCplt (I2C_HandleTypeDef *hi2c) |
| I2C Master sequential complete process. | |
| static void | I2C_ITSlaveSeqCplt (I2C_HandleTypeDef *hi2c) |
| I2C Slave sequential complete process. | |
| static void | I2C_ITMasterCplt (I2C_HandleTypeDef *hi2c, uint32_t ITFlags) |
| I2C Master complete process. | |
| static void | I2C_ITSlaveCplt (I2C_HandleTypeDef *hi2c, uint32_t ITFlags) |
| I2C Slave complete process. | |
| static void | I2C_ITListenCplt (I2C_HandleTypeDef *hi2c, uint32_t ITFlags) |
| I2C Listen complete process. | |
| static void | I2C_ITError (I2C_HandleTypeDef *hi2c, uint32_t ErrorCode) |
| I2C interrupts error process. | |
| static HAL_StatusTypeDef | I2C_RequestMemoryWrite (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) |
| Master sends target device address followed by internal memory address for write request. | |
| static HAL_StatusTypeDef | I2C_RequestMemoryRead (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint32_t Timeout, uint32_t Tickstart) |
| Master sends target device address followed by internal memory address for read request. | |
| static HAL_StatusTypeDef | I2C_Master_ISR_IT (struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) |
| Interrupt Sub-Routine which handle the Interrupt Flags Master Mode with Interrupt. | |
| static HAL_StatusTypeDef | I2C_Slave_ISR_IT (struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) |
| Interrupt Sub-Routine which handle the Interrupt Flags Slave Mode with Interrupt. | |
| static HAL_StatusTypeDef | I2C_Master_ISR_DMA (struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) |
| Interrupt Sub-Routine which handle the Interrupt Flags Master Mode with DMA. | |
| static HAL_StatusTypeDef | I2C_Slave_ISR_DMA (struct __I2C_HandleTypeDef *hi2c, uint32_t ITFlags, uint32_t ITSources) |
| Interrupt Sub-Routine which handle the Interrupt Flags Slave Mode with DMA. | |
| static HAL_StatusTypeDef | I2C_WaitOnFlagUntilTimeout (I2C_HandleTypeDef *hi2c, uint32_t Flag, FlagStatus Status, uint32_t Timeout, uint32_t Tickstart) |
| This function handles I2C Communication Timeout. | |
| static HAL_StatusTypeDef | I2C_WaitOnTXISFlagUntilTimeout (I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
| This function handles I2C Communication Timeout for specific usage of TXIS flag. | |
| static HAL_StatusTypeDef | I2C_WaitOnRXNEFlagUntilTimeout (I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
| This function handles I2C Communication Timeout for specific usage of RXNE flag. | |
| static HAL_StatusTypeDef | I2C_WaitOnSTOPFlagUntilTimeout (I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
| This function handles I2C Communication Timeout for specific usage of STOP flag. | |
| static HAL_StatusTypeDef | I2C_IsErrorOccurred (I2C_HandleTypeDef *hi2c, uint32_t Timeout, uint32_t Tickstart) |
| This function handles errors detection during an I2C Communication. | |
| static void | I2C_Enable_IRQ (I2C_HandleTypeDef *hi2c, uint16_t InterruptRequest) |
| Manage the enabling of Interrupts. | |
| static void | I2C_Disable_IRQ (I2C_HandleTypeDef *hi2c, uint16_t InterruptRequest) |
| Manage the disabling of Interrupts. | |
| static void | I2C_TreatErrorCallback (I2C_HandleTypeDef *hi2c) |
| I2C Error callback treatment. | |
| static void | I2C_Flush_TXDR (I2C_HandleTypeDef *hi2c) |
| I2C Tx data register flush process. | |
| static void | I2C_TransferConfig (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t Size, uint32_t Mode, uint32_t Request) |
| Handles I2Cx communication when starting transfer or during transfer (TC or TCR flag are set). | |
| static void | I2C_ConvertOtherXferOptions (I2C_HandleTypeDef *hi2c) |
| Convert I2Cx OTHER_xxx XferOptions to functional XferOptions. | |
| 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. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Transmit (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
| Transmits in master mode an amount of data in blocking mode. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Receive (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
| Receives in master mode an amount of data in blocking mode. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Transmit (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
| Transmits in slave mode an amount of data in blocking mode. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Receive (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
| Receive in slave mode an amount of data in blocking mode. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Transmit_IT (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
| Transmit in master mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Receive_IT (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
| Receive in master mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Transmit_IT (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
| Transmit in slave mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Receive_IT (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
| Receive in slave mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Transmit_DMA (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
| Transmit in master mode an amount of data in non-blocking mode with DMA. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Receive_DMA (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size) |
| Receive in master mode an amount of data in non-blocking mode with DMA. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Transmit_DMA (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
| Transmit in slave mode an amount of data in non-blocking mode with DMA. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Receive_DMA (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size) |
| Receive in slave mode an amount of data in non-blocking mode with DMA. | |
| 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) |
| Write an amount of data in blocking mode to a specific memory address. | |
| 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) |
| Read an amount of data in blocking mode from a specific memory address. | |
| 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) |
| Write an amount of data in non-blocking mode with Interrupt to a specific memory address. | |
| 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) |
| Read an amount of data in non-blocking mode with Interrupt from a specific memory address. | |
| 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) |
| Write an amount of data in non-blocking mode with DMA to a specific memory address. | |
| 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) |
| Reads an amount of data in non-blocking mode with DMA from a specific memory address. | |
| HAL_StatusTypeDef | HAL_I2C_IsDeviceReady (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint32_t Trials, uint32_t Timeout) |
| Checks if target device is ready for communication. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Seq_Transmit_IT (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential transmit in master I2C mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Seq_Transmit_DMA (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential transmit in master I2C mode an amount of data in non-blocking mode with DMA. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Seq_Receive_IT (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential receive in master I2C mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Seq_Receive_DMA (I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential receive in master I2C mode an amount of data in non-blocking mode with DMA. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Seq_Transmit_IT (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential transmit in slave/device I2C mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Seq_Transmit_DMA (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential transmit in slave/device I2C mode an amount of data in non-blocking mode with DMA. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Seq_Receive_IT (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential receive in slave/device I2C mode an amount of data in non-blocking mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Slave_Seq_Receive_DMA (I2C_HandleTypeDef *hi2c, uint8_t *pData, uint16_t Size, uint32_t XferOptions) |
| Sequential receive in slave/device I2C mode an amount of data in non-blocking mode with DMA. | |
| HAL_StatusTypeDef | HAL_I2C_EnableListen_IT (I2C_HandleTypeDef *hi2c) |
| Enable the Address listen mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_DisableListen_IT (I2C_HandleTypeDef *hi2c) |
| Disable the Address listen mode with Interrupt. | |
| HAL_StatusTypeDef | HAL_I2C_Master_Abort_IT (I2C_HandleTypeDef *hi2c, uint16_t DevAddress) |
| Abort a master I2C IT or DMA process communication with Interrupt. | |
| void | HAL_I2C_EV_IRQHandler (I2C_HandleTypeDef *hi2c) |
| This function handles I2C event interrupt request. | |
| void | HAL_I2C_ER_IRQHandler (I2C_HandleTypeDef *hi2c) |
| This function handles I2C error interrupt request. | |
| __weak void | HAL_I2C_MasterTxCpltCallback (I2C_HandleTypeDef *hi2c) |
| Master Tx Transfer completed callback. | |
| __weak void | HAL_I2C_MasterRxCpltCallback (I2C_HandleTypeDef *hi2c) |
| Master Rx Transfer completed callback. | |
| __weak void | HAL_I2C_SlaveTxCpltCallback (I2C_HandleTypeDef *hi2c) |
| Slave Tx Transfer completed callback. | |
| __weak void | HAL_I2C_SlaveRxCpltCallback (I2C_HandleTypeDef *hi2c) |
| Slave Rx Transfer completed callback. | |
| __weak void | HAL_I2C_AddrCallback (I2C_HandleTypeDef *hi2c, uint8_t TransferDirection, uint16_t AddrMatchCode) |
| Slave Address Match callback. | |
| __weak void | HAL_I2C_ListenCpltCallback (I2C_HandleTypeDef *hi2c) |
| Listen Complete callback. | |
| __weak void | HAL_I2C_MemTxCpltCallback (I2C_HandleTypeDef *hi2c) |
| Memory Tx Transfer completed callback. | |
| __weak void | HAL_I2C_MemRxCpltCallback (I2C_HandleTypeDef *hi2c) |
| Memory Rx Transfer completed callback. | |
| __weak void | HAL_I2C_ErrorCallback (I2C_HandleTypeDef *hi2c) |
| I2C error callback. | |
| __weak void | HAL_I2C_AbortCpltCallback (I2C_HandleTypeDef *hi2c) |
| I2C abort callback. | |
| HAL_I2C_StateTypeDef | HAL_I2C_GetState (I2C_HandleTypeDef *hi2c) |
| Return the I2C handle state. | |
| HAL_I2C_ModeTypeDef | HAL_I2C_GetMode (I2C_HandleTypeDef *hi2c) |
| Returns the I2C Master, Slave, Memory or no mode. | |
| uint32_t | HAL_I2C_GetError (I2C_HandleTypeDef *hi2c) |
| Return the I2C error code. | |
I2C HAL module driver. This file provides firmware functions to manage the following functionalities of the Inter Integrated Circuit (I2C) peripheral: + Initialization and de-initialization functions + IO operation functions + Peripheral State and Errors functions.
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.
==============================================================================
##### How to use this driver #####
==============================================================================
[..]
The I2C HAL driver can be used as follows:
(#) Declare a I2C_HandleTypeDef handle structure, for example:
I2C_HandleTypeDef hi2c;
(#)Initialize the I2C low level resources by implementing the HAL_I2C_MspInit() API:
(##) Enable the I2Cx interface clock
(##) I2C pins configuration
(+++) Enable the clock for the I2C GPIOs
(+++) Configure I2C pins as alternate function open-drain
(##) NVIC configuration if you need to use interrupt process
(+++) Configure the I2Cx interrupt priority
(+++) Enable the NVIC I2C IRQ Channel
(##) DMA Configuration if you need to use DMA process
(+++) Declare a DMA_HandleTypeDef handle structure for
the transmit or receive channel
(+++) Enable the DMAx interface clock using
(+++) Configure the DMA handle parameters
(+++) Configure the DMA Tx or Rx channel
(+++) Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle
(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on
the DMA Tx or Rx channel
(#) Configure the Communication Clock Timing, Own Address1, Master Addressing mode, Dual Addressing mode,
Own Address2, Own Address2 Mask, General call and Nostretch mode in the hi2c Init structure.
(#) Initialize the I2C registers by calling the HAL_I2C_Init(), configures also the low level Hardware
(GPIO, CLOCK, NVIC...etc) by calling the customized HAL_I2C_MspInit(&hi2c) API.
(#) To check if target device is ready for communication, use the function HAL_I2C_IsDeviceReady()
(#) For I2C IO and IO MEM operations, three operation modes are available within this driver :
*** Polling mode IO operation ***
=================================
[..]
(+) Transmit in master mode an amount of data in blocking mode using HAL_I2C_Master_Transmit()
(+) Receive in master mode an amount of data in blocking mode using HAL_I2C_Master_Receive()
(+) Transmit in slave mode an amount of data in blocking mode using HAL_I2C_Slave_Transmit()
(+) Receive in slave mode an amount of data in blocking mode using HAL_I2C_Slave_Receive()
*** Polling mode IO MEM operation ***
=====================================
[..]
(+) Write an amount of data in blocking mode to a specific memory address using HAL_I2C_Mem_Write()
(+) Read an amount of data in blocking mode from a specific memory address using HAL_I2C_Mem_Read()
*** Interrupt mode IO operation ***
===================================
[..]
(+) Transmit in master mode an amount of data in non-blocking mode using HAL_I2C_Master_Transmit_IT()
(+) At transmission end of transfer, HAL_I2C_MasterTxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MasterTxCpltCallback()
(+) Receive in master mode an amount of data in non-blocking mode using HAL_I2C_Master_Receive_IT()
(+) At reception end of transfer, HAL_I2C_MasterRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MasterRxCpltCallback()
(+) Transmit in slave mode an amount of data in non-blocking mode using HAL_I2C_Slave_Transmit_IT()
(+) At transmission end of transfer, HAL_I2C_SlaveTxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback()
(+) Receive in slave mode an amount of data in non-blocking mode using HAL_I2C_Slave_Receive_IT()
(+) At reception end of transfer, HAL_I2C_SlaveRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback()
(+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and users can
add their own code by customization of function pointer HAL_I2C_ErrorCallback()
(+) Abort a master I2C process communication with Interrupt using HAL_I2C_Master_Abort_IT()
(+) End of abort process, HAL_I2C_AbortCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_AbortCpltCallback()
(+) Discard a slave I2C process communication using __HAL_I2C_GENERATE_NACK() macro.
This action will inform Master to generate a Stop condition to discard the communication.
*** Interrupt mode or DMA mode IO sequential operation ***
==========================================================
[..]
(@) These interfaces allow to manage a sequential transfer with a repeated start condition
when a direction change during transfer
[..]
(+) A specific option field manage the different steps of a sequential transfer
(+) Option field values are defined through I2C_XFEROPTIONS and are listed below:
(++) I2C_FIRST_AND_LAST_FRAME: No sequential usage, functional is same as associated interfaces in
no sequential mode
(++) I2C_FIRST_FRAME: Sequential usage, this option allow to manage a sequence with start condition, address
and data to transfer without a final stop condition
(++) I2C_FIRST_AND_NEXT_FRAME: Sequential usage (Master only), this option allow to manage a sequence with
start condition, address and data to transfer without a final stop condition,
an then permit a call the same master sequential interface several times
(like HAL_I2C_Master_Seq_Transmit_IT() then HAL_I2C_Master_Seq_Transmit_IT()
or HAL_I2C_Master_Seq_Transmit_DMA() then HAL_I2C_Master_Seq_Transmit_DMA())
(++) I2C_NEXT_FRAME: Sequential usage, this option allow to manage a sequence with a restart condition, address
and with new data to transfer if the direction change or manage only the new data to
transfer
if no direction change and without a final stop condition in both cases
(++) I2C_LAST_FRAME: Sequential usage, this option allow to manage a sequance with a restart condition, address
and with new data to transfer if the direction change or manage only the new data to
transfer
if no direction change and with a final stop condition in both cases
(++) I2C_LAST_FRAME_NO_STOP: Sequential usage (Master only), this option allow to manage a restart condition
after several call of the same master sequential interface several times
(link with option I2C_FIRST_AND_NEXT_FRAME).
Usage can, transfer several bytes one by one using
HAL_I2C_Master_Seq_Transmit_IT
or HAL_I2C_Master_Seq_Receive_IT
or HAL_I2C_Master_Seq_Transmit_DMA
or HAL_I2C_Master_Seq_Receive_DMA
with option I2C_FIRST_AND_NEXT_FRAME then I2C_NEXT_FRAME.
Then usage of this option I2C_LAST_FRAME_NO_STOP at the last Transmit or
Receive sequence permit to call the opposite interface Receive or Transmit
without stopping the communication and so generate a restart condition.
(++) I2C_OTHER_FRAME: Sequential usage (Master only), this option allow to manage a restart condition after
each call of the same master sequential
interface.
Usage can, transfer several bytes one by one with a restart with slave address between
each bytes using
HAL_I2C_Master_Seq_Transmit_IT
or HAL_I2C_Master_Seq_Receive_IT
or HAL_I2C_Master_Seq_Transmit_DMA
or HAL_I2C_Master_Seq_Receive_DMA
with option I2C_FIRST_FRAME then I2C_OTHER_FRAME.
Then usage of this option I2C_OTHER_AND_LAST_FRAME at the last frame to help automatic
generation of STOP condition.
(+) Different sequential I2C interfaces are listed below:
(++) Sequential transmit in master I2C mode an amount of data in non-blocking mode using
HAL_I2C_Master_Seq_Transmit_IT() or using HAL_I2C_Master_Seq_Transmit_DMA()
(+++) At transmission end of current frame transfer, HAL_I2C_MasterTxCpltCallback() is executed and
users can add their own code by customization of function pointer HAL_I2C_MasterTxCpltCallback()
(++) Sequential receive in master I2C mode an amount of data in non-blocking mode using
HAL_I2C_Master_Seq_Receive_IT() or using HAL_I2C_Master_Seq_Receive_DMA()
(+++) At reception end of current frame transfer, HAL_I2C_MasterRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MasterRxCpltCallback()
(++) Abort a master IT or DMA I2C process communication with Interrupt using HAL_I2C_Master_Abort_IT()
(+++) End of abort process, HAL_I2C_AbortCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_AbortCpltCallback()
(++) Enable/disable the Address listen mode in slave I2C mode using HAL_I2C_EnableListen_IT()
HAL_I2C_DisableListen_IT()
(+++) When address slave I2C match, HAL_I2C_AddrCallback() is executed and users can
add their own code to check the Address Match Code and the transmission direction request by master
(Write/Read).
(+++) At Listen mode end HAL_I2C_ListenCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_ListenCpltCallback()
(++) Sequential transmit in slave I2C mode an amount of data in non-blocking mode using
HAL_I2C_Slave_Seq_Transmit_IT() or using HAL_I2C_Slave_Seq_Transmit_DMA()
(+++) At transmission end of current frame transfer, HAL_I2C_SlaveTxCpltCallback() is executed and
users can add their own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback()
(++) Sequential receive in slave I2C mode an amount of data in non-blocking mode using
HAL_I2C_Slave_Seq_Receive_IT() or using HAL_I2C_Slave_Seq_Receive_DMA()
(+++) At reception end of current frame transfer, HAL_I2C_SlaveRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback()
(++) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and users can
add their own code by customization of function pointer HAL_I2C_ErrorCallback()
(++) Discard a slave I2C process communication using __HAL_I2C_GENERATE_NACK() macro.
This action will inform Master to generate a Stop condition to discard the communication.
*** Interrupt mode IO MEM operation ***
=======================================
[..]
(+) Write an amount of data in non-blocking mode with Interrupt to a specific memory address using
HAL_I2C_Mem_Write_IT()
(+) At Memory end of write transfer, HAL_I2C_MemTxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MemTxCpltCallback()
(+) Read an amount of data in non-blocking mode with Interrupt from a specific memory address using
HAL_I2C_Mem_Read_IT()
(+) At Memory end of read transfer, HAL_I2C_MemRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MemRxCpltCallback()
(+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and users can
add their own code by customization of function pointer HAL_I2C_ErrorCallback()
*** DMA mode IO operation ***
==============================
[..]
(+) Transmit in master mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Master_Transmit_DMA()
(+) At transmission end of transfer, HAL_I2C_MasterTxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MasterTxCpltCallback()
(+) Receive in master mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Master_Receive_DMA()
(+) At reception end of transfer, HAL_I2C_MasterRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MasterRxCpltCallback()
(+) Transmit in slave mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Slave_Transmit_DMA()
(+) At transmission end of transfer, HAL_I2C_SlaveTxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_SlaveTxCpltCallback()
(+) Receive in slave mode an amount of data in non-blocking mode (DMA) using
HAL_I2C_Slave_Receive_DMA()
(+) At reception end of transfer, HAL_I2C_SlaveRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_SlaveRxCpltCallback()
(+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and users can
add their own code by customization of function pointer HAL_I2C_ErrorCallback()
(+) Abort a master I2C process communication with Interrupt using HAL_I2C_Master_Abort_IT()
(+) End of abort process, HAL_I2C_AbortCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_AbortCpltCallback()
(+) Discard a slave I2C process communication using __HAL_I2C_GENERATE_NACK() macro.
This action will inform Master to generate a Stop condition to discard the communication.
*** DMA mode IO MEM operation ***
=================================
[..]
(+) Write an amount of data in non-blocking mode with DMA to a specific memory address using
HAL_I2C_Mem_Write_DMA()
(+) At Memory end of write transfer, HAL_I2C_MemTxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MemTxCpltCallback()
(+) Read an amount of data in non-blocking mode with DMA from a specific memory address using
HAL_I2C_Mem_Read_DMA()
(+) At Memory end of read transfer, HAL_I2C_MemRxCpltCallback() is executed and users can
add their own code by customization of function pointer HAL_I2C_MemRxCpltCallback()
(+) In case of transfer Error, HAL_I2C_ErrorCallback() function is executed and users can
add their own code by customization of function pointer HAL_I2C_ErrorCallback()
*** I2C HAL driver macros list ***
==================================
[..]
Below the list of most used macros in I2C HAL driver.
(+) __HAL_I2C_ENABLE: Enable the I2C peripheral
(+) __HAL_I2C_DISABLE: Disable the I2C peripheral
(+) __HAL_I2C_GENERATE_NACK: Generate a Non-Acknowledge I2C peripheral in Slave mode
(+) __HAL_I2C_GET_FLAG: Check whether the specified I2C flag is set or not
(+) __HAL_I2C_CLEAR_FLAG: Clear the specified I2C pending flag
(+) __HAL_I2C_ENABLE_IT: Enable the specified I2C interrupt
(+) __HAL_I2C_DISABLE_IT: Disable the specified I2C interrupt
*** Callback registration ***
=============================================
[..]
The compilation flag USE_HAL_I2C_REGISTER_CALLBACKS when set to 1
allows the user to configure dynamically the driver callbacks.
Use Functions HAL_I2C_RegisterCallback() or HAL_I2C_RegisterAddrCallback()
to register an interrupt callback.
[..]
Function HAL_I2C_RegisterCallback() allows to register following callbacks:
(+) MasterTxCpltCallback : callback for Master transmission end of transfer.
(+) MasterRxCpltCallback : callback for Master reception end of transfer.
(+) SlaveTxCpltCallback : callback for Slave transmission end of transfer.
(+) SlaveRxCpltCallback : callback for Slave reception end of transfer.
(+) ListenCpltCallback : callback for end of listen mode.
(+) MemTxCpltCallback : callback for Memory transmission end of transfer.
(+) MemRxCpltCallback : callback for Memory reception end of transfer.
(+) ErrorCallback : callback for error detection.
(+) AbortCpltCallback : callback for abort completion process.
(+) MspInitCallback : callback for Msp Init.
(+) MspDeInitCallback : callback for Msp DeInit.
This function takes as parameters the HAL peripheral handle, the Callback ID
and a pointer to the user callback function.
[..]
For specific callback AddrCallback use dedicated register callbacks : HAL_I2C_RegisterAddrCallback().
[..]
Use function HAL_I2C_UnRegisterCallback to reset a callback to the default
weak function.
HAL_I2C_UnRegisterCallback takes as parameters the HAL peripheral handle,
and the Callback ID.
This function allows to reset following callbacks:
(+) MasterTxCpltCallback : callback for Master transmission end of transfer.
(+) MasterRxCpltCallback : callback for Master reception end of transfer.
(+) SlaveTxCpltCallback : callback for Slave transmission end of transfer.
(+) SlaveRxCpltCallback : callback for Slave reception end of transfer.
(+) ListenCpltCallback : callback for end of listen mode.
(+) MemTxCpltCallback : callback for Memory transmission end of transfer.
(+) MemRxCpltCallback : callback for Memory reception end of transfer.
(+) ErrorCallback : callback for error detection.
(+) AbortCpltCallback : callback for abort completion process.
(+) MspInitCallback : callback for Msp Init.
(+) MspDeInitCallback : callback for Msp DeInit.
[..]
For callback AddrCallback use dedicated register callbacks : HAL_I2C_UnRegisterAddrCallback().
[..]
By default, after the HAL_I2C_Init() and when the state is HAL_I2C_STATE_RESET
all callbacks are set to the corresponding weak functions:
examples HAL_I2C_MasterTxCpltCallback(), HAL_I2C_MasterRxCpltCallback().
Exception done for MspInit and MspDeInit functions that are
reset to the legacy weak functions in the HAL_I2C_Init()/ HAL_I2C_DeInit() only when
these callbacks are null (not registered beforehand).
If MspInit or MspDeInit are not null, the HAL_I2C_Init()/ HAL_I2C_DeInit()
keep and use the user MspInit/MspDeInit callbacks (registered beforehand) whatever the state.
[..]
Callbacks can be registered/unregistered in HAL_I2C_STATE_READY state only.
Exception done MspInit/MspDeInit functions that can be registered/unregistered
in HAL_I2C_STATE_READY or HAL_I2C_STATE_RESET state,
thus registered (user) MspInit/DeInit callbacks can be used during the Init/DeInit.
Then, the user first registers the MspInit/MspDeInit user callbacks
using HAL_I2C_RegisterCallback() before calling HAL_I2C_DeInit()
or HAL_I2C_Init() function.
[..]
When the compilation flag USE_HAL_I2C_REGISTER_CALLBACKS is set to 0 or
not defined, the callback registration feature is not available and all callbacks
are set to the corresponding weak functions.
[..]
(@) You can refer to the I2C HAL driver header file for more useful macros
Definition in file stm32l4xx_hal_i2c.c.
1.7.6.1