IRDA HAL module driver. This file provides firmware functions to manage the following functionalities of the IrDA (Infrared Data Association) Peripheral (IRDA) More...
#include "stm32h7xx_hal.h"
Detailed Description

IRDA HAL module driver. This file provides firmware functions to manage the following functionalities of the IrDA (Infrared Data Association) Peripheral (IRDA)
Author
MCD Application Team
Initialization and de-initialization functions
IO operation functions
Peripheral State and Errors functions
Peripheral Control functions
Attention
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 IRDA HAL driver can be used as follows:

  (#) Declare a IRDA_HandleTypeDef handle structure (eg. IRDA_HandleTypeDef hirda).
  (#) Initialize the IRDA low level resources by implementing the HAL_IRDA_MspInit() API
      in setting the associated USART or UART in IRDA mode:
      (++) Enable the USARTx/UARTx interface clock.
      (++) USARTx/UARTx pins configuration:
          (+++) Enable the clock for the USARTx/UARTx GPIOs.
          (+++) Configure these USARTx/UARTx pins (TX as alternate function pull-up, RX as alternate function Input).
      (++) NVIC configuration if you need to use interrupt process (HAL_IRDA_Transmit_IT()
           and HAL_IRDA_Receive_IT() APIs):
          (+++) Configure the USARTx/UARTx interrupt priority.
          (+++) Enable the NVIC USARTx/UARTx IRQ handle.
          (+++) The specific IRDA interrupts (Transmission complete interrupt,
                RXNE interrupt and Error Interrupts) will be managed using the macros
                __HAL_IRDA_ENABLE_IT() and __HAL_IRDA_DISABLE_IT() inside the transmit and receive process.

      (++) DMA Configuration if you need to use DMA process (HAL_IRDA_Transmit_DMA()
           and HAL_IRDA_Receive_DMA() APIs):
          (+++) Declare a DMA handle structure for the Tx/Rx channel.
          (+++) Enable the DMAx interface clock.
          (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
          (+++) Configure the DMA Tx/Rx channel.
          (+++) Associate the initialized DMA handle to the IRDA DMA Tx/Rx handle.
          (+++) Configure the priority and enable the NVIC for the transfer
                complete interrupt on the DMA Tx/Rx channel.

  (#) Program the Baud Rate, Word Length and Parity and Mode(Receiver/Transmitter),
      the normal or low power mode and the clock prescaler in the hirda handle Init structure.

  (#) Initialize the IRDA registers by calling the HAL_IRDA_Init() API:
      (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
           by calling the customized HAL_IRDA_MspInit() API.

       -@@- The specific IRDA interrupts (Transmission complete interrupt,
           RXNE interrupt and Error Interrupts) will be managed using the macros
           __HAL_IRDA_ENABLE_IT() and __HAL_IRDA_DISABLE_IT() inside the transmit and receive process.

  (#) Three operation modes are available within this driver :

   *** Polling mode IO operation ***
   =================================
   [..]
     (+) Send an amount of data in blocking mode using HAL_IRDA_Transmit()
     (+) Receive an amount of data in blocking mode using HAL_IRDA_Receive()

   *** Interrupt mode IO operation ***
   ===================================
   [..]
     (+) Send an amount of data in non-blocking mode using HAL_IRDA_Transmit_IT()
     (+) At transmission end of transfer HAL_IRDA_TxCpltCallback() is executed and user can
          add his own code by customization of function pointer HAL_IRDA_TxCpltCallback()
     (+) Receive an amount of data in non-blocking mode using HAL_IRDA_Receive_IT()
     (+) At reception end of transfer HAL_IRDA_RxCpltCallback() is executed and user can
          add his own code by customization of function pointer HAL_IRDA_RxCpltCallback()
     (+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can
          add his own code by customization of function pointer HAL_IRDA_ErrorCallback()

   *** DMA mode IO operation ***
   ==============================
   [..]
     (+) Send an amount of data in non-blocking mode (DMA) using HAL_IRDA_Transmit_DMA()
     (+) At transmission half of transfer HAL_IRDA_TxHalfCpltCallback() is executed and user can
          add his own code by customization of function pointer HAL_IRDA_TxHalfCpltCallback()
     (+) At transmission end of transfer HAL_IRDA_TxCpltCallback() is executed and user can
          add his own code by customization of function pointer HAL_IRDA_TxCpltCallback()
     (+) Receive an amount of data in non-blocking mode (DMA) using HAL_IRDA_Receive_DMA()
     (+) At reception half of transfer HAL_IRDA_RxHalfCpltCallback() is executed and user can
          add his own code by customization of function pointer HAL_IRDA_RxHalfCpltCallback()
     (+) At reception end of transfer HAL_IRDA_RxCpltCallback() is executed and user can
          add his own code by customization of function pointer HAL_IRDA_RxCpltCallback()
     (+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can
          add his own code by customization of function pointer HAL_IRDA_ErrorCallback()

   *** IRDA HAL driver macros list ***
   ====================================
   [..]
     Below the list of most used macros in IRDA HAL driver.

     (+) __HAL_IRDA_ENABLE: Enable the IRDA peripheral
     (+) __HAL_IRDA_DISABLE: Disable the IRDA peripheral
     (+) __HAL_IRDA_GET_FLAG : Check whether the specified IRDA flag is set or not
     (+) __HAL_IRDA_CLEAR_FLAG : Clear the specified IRDA pending flag
     (+) __HAL_IRDA_ENABLE_IT: Enable the specified IRDA interrupt
     (+) __HAL_IRDA_DISABLE_IT: Disable the specified IRDA interrupt
     (+) __HAL_IRDA_GET_IT_SOURCE: Check whether or not the specified IRDA interrupt is enabled

   [..]
     (@) You can refer to the IRDA HAL driver header file for more useful macros

  ##### Callback registration #####
  ==================================

  [..]
  The compilation define USE_HAL_IRDA_REGISTER_CALLBACKS when set to 1
  allows the user to configure dynamically the driver callbacks.

  [..]
  Use Function HAL_IRDA_RegisterCallback() to register a user callback.
  Function HAL_IRDA_RegisterCallback() allows to register following callbacks:
  (+) TxHalfCpltCallback        : Tx Half Complete Callback.
  (+) TxCpltCallback            : Tx Complete Callback.
  (+) RxHalfCpltCallback        : Rx Half Complete Callback.
  (+) RxCpltCallback            : Rx Complete Callback.
  (+) ErrorCallback             : Error Callback.
  (+) AbortCpltCallback         : Abort Complete Callback.
  (+) AbortTransmitCpltCallback : Abort Transmit Complete Callback.
  (+) AbortReceiveCpltCallback  : Abort Receive Complete Callback.
  (+) MspInitCallback           : IRDA MspInit.
  (+) MspDeInitCallback         : IRDA MspDeInit.
  This function takes as parameters the HAL peripheral handle, the Callback ID
  and a pointer to the user callback function.

  [..]
  Use function HAL_IRDA_UnRegisterCallback() to reset a callback to the default
  weak function.
  HAL_IRDA_UnRegisterCallback() takes as parameters the HAL peripheral handle,
  and the Callback ID.
  This function allows to reset following callbacks:
  (+) TxHalfCpltCallback        : Tx Half Complete Callback.
  (+) TxCpltCallback            : Tx Complete Callback.
  (+) RxHalfCpltCallback        : Rx Half Complete Callback.
  (+) RxCpltCallback            : Rx Complete Callback.
  (+) ErrorCallback             : Error Callback.
  (+) AbortCpltCallback         : Abort Complete Callback.
  (+) AbortTransmitCpltCallback : Abort Transmit Complete Callback.
  (+) AbortReceiveCpltCallback  : Abort Receive Complete Callback.
  (+) MspInitCallback           : IRDA MspInit.
  (+) MspDeInitCallback         : IRDA MspDeInit.

  [..]
  By default, after the HAL_IRDA_Init() and when the state is HAL_IRDA_STATE_RESET
  all callbacks are set to the corresponding weak functions:
  examples HAL_IRDA_TxCpltCallback(), HAL_IRDA_RxHalfCpltCallback().
  Exception done for MspInit and MspDeInit functions that are respectively
  reset to the legacy weak functions in the HAL_IRDA_Init()
  and HAL_IRDA_DeInit() only when these callbacks are null (not registered beforehand).
  If not, MspInit or MspDeInit are not null, the HAL_IRDA_Init() and HAL_IRDA_DeInit()
  keep and use the user MspInit/MspDeInit callbacks (registered beforehand).

  [..]
  Callbacks can be registered/unregistered in HAL_IRDA_STATE_READY state only.
  Exception done MspInit/MspDeInit that can be registered/unregistered
  in HAL_IRDA_STATE_READY or HAL_IRDA_STATE_RESET state, thus registered (user)
  MspInit/DeInit callbacks can be used during the Init/DeInit.
  In that case first register the MspInit/MspDeInit user callbacks
  using HAL_IRDA_RegisterCallback() before calling HAL_IRDA_DeInit()
  or HAL_IRDA_Init() function.

  [..]
  When The compilation define USE_HAL_IRDA_REGISTER_CALLBACKS is set to 0 or
  not defined, the callback registration feature is not available
  and weak callbacks are used.