text: /**
    ******************************************************************************
    * @file    stm32l1xx_hal_adc_ex.c
    * @author  MCD Application Team
    * @brief   This file provides firmware functions to manage the following 
    *          functionalities of the Analog to Digital Convertor (ADC)
    *          peripheral:
    *           + Operation functions
    *             ++ Start, stop, get result of conversions of injected
    *                group, using 2 possible modes: polling, interruption.
    *           + Control functions
    *             ++ Channels configuration on injected group
    *          Other functions (generic functions) are available in file 
    *          "stm32l1xx_hal_adc.c".
    *
    @verbatim
    [..] 
    (@) Sections "ADC peripheral features" and "How to use this driver" are
        available in file of generic functions "stm32l1xx_hal_adc.c".
    [..]
    @endverbatim
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
    * All rights reserved.</center></h2>
    *
    * This software component is licensed by ST under BSD 3-Clause license,
    * the "License"; You may not use this file except in compliance with the
    * License. You may obtain a copy of the License at:
    *                        opensource.org/licenses/BSD-3-Clause
    *
    ******************************************************************************
    */
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32l1xx_hal.h"
  
  /** @addtogroup STM32L1xx_HAL_Driver
    * @{
    */
  
  /** @defgroup ADCEx ADCEx
    * @brief ADC Extension HAL module driver
    * @{
    */
  
  #ifdef HAL_ADC_MODULE_ENABLED
  
  /* Private typedef -----------------------------------------------------------*/
  /* Private define ------------------------------------------------------------*/
  /** @defgroup ADCEx_Private_Constants ADCEx Private Constants
    * @{
    */
  
    /* ADC conversion cycles (unit: ADC clock cycles)                           */
    /* (selected sampling time + conversion time of 12 ADC clock cycles, with   */
    /* resolution 12 bits)                                                      */
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_4CYCLE5   ( 16U)
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_9CYCLES   ( 21U)
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_16CYCLES  ( 28U)
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_24CYCLES  ( 36U)
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_48CYCLES  ( 60U)
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_96CYCLES  (108U)
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_192CYCLES (204U)
    #define ADC_CONVERSIONCLOCKCYCLES_SAMPLETIME_384CYCLES (396U)
  
    /* Delay for temperature sensor stabilization time.                         */
    /* Maximum delay is 10us (refer to device datasheet, parameter tSTART).     */
    /* Unit: us                                                                 */
    #define ADC_TEMPSENSOR_DELAY_US         (10U)
  
  /**
    * @}
    */
  
  /* Private macro -------------------------------------------------------------*/
  /* Private variables ---------------------------------------------------------*/
  /* Private function prototypes -----------------------------------------------*/
  /* Private functions ---------------------------------------------------------*/
  
  /** @defgroup ADCEx_Exported_Functions ADCEx Exported Functions
    * @{
    */
  
  /** @defgroup ADCEx_Exported_Functions_Group1 ADC Extended IO operation functions
   *  @brief    ADC Extended Input and Output operation functions
   *
  @verbatim
   ===============================================================================
                        ##### IO operation functions #####
   ===============================================================================
      [..]  This section provides functions allowing to:
        (+) Start conversion of injected group.
        (+) Stop conversion of injected group.
        (+) Poll for conversion complete on injected group.
        (+) Get result of injected channel conversion.
        (+) Start conversion of injected group and enable interruptions.
        (+) Stop conversion of injected group and disable interruptions.
        
  @endverbatim
    * @{
    */
  
  /**
    * @brief  Enables ADC, starts conversion of injected group.
    *         Interruptions enabled in this function: None.
    * @param  hadc ADC handle
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADCEx_InjectedStart(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    
    /* Process locked */
    __HAL_LOCK(hadc);
      
    /* Enable the ADC peripheral */
    tmp_hal_status = ADC_Enable(hadc);
    
    /* Start conversion if ADC is effectively enabled */
    if (tmp_hal_status == HAL_OK)
    {
      /* Set ADC state                                                          */
      /* - Clear state bitfield related to injected group conversion results    */
      /* - Set state bitfield related to injected operation                     */
      ADC_STATE_CLR_SET(hadc->State,
                        HAL_ADC_STATE_READY | HAL_ADC_STATE_INJ_EOC,
                        HAL_ADC_STATE_INJ_BUSY);
      
      /* Check if a regular conversion is ongoing */
      /* Note: On this device, there is no ADC error code fields related to     */
      /*       conversions on group injected only. In case of conversion on     */
      /*       going on group regular, no error code is reset.                  */
      if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_REG_BUSY))
      {
        /* Reset ADC all error code fields */
        ADC_CLEAR_ERRORCODE(hadc);
      }
      
      /* Process unlocked */
      /* Unlock before starting ADC conversions: in case of potential           */
      /* interruption, to let the process to ADC IRQ Handler.                   */
      __HAL_UNLOCK(hadc);
      
      /* Clear injected group conversion flag */
      /* (To ensure of no unknown state from potential previous ADC operations) */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC);
      
      /* Enable conversion of injected group.                                   */
      /* If software start has been selected, conversion starts immediately.    */
      /* If external trigger has been selected, conversion will start at next   */
      /* trigger event.                                                         */
      /* If automatic injected conversion is enabled, conversion will start     */
      /* after next regular group conversion.                                   */
      if (ADC_IS_SOFTWARE_START_INJECTED(hadc)              && 
          HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)  )
      {
        /* Enable ADC software conversion for injected channels */
        SET_BIT(hadc->Instance->CR2, ADC_CR2_JSWSTART);
      }
    }
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Stop conversion of injected channels. Disable ADC peripheral if
    *         no regular conversion is on going.
    * @note   If ADC must be disabled and if conversion is on going on 
    *         regular group, function HAL_ADC_Stop must be used to stop both
    *         injected and regular groups, and disable the ADC.
    * @note   If injected group mode auto-injection is enabled,
    *         function HAL_ADC_Stop must be used.
    * @note   In case of auto-injection mode, HAL_ADC_Stop must be used.
    * @param  hadc ADC handle
    * @retval None
    */
  HAL_StatusTypeDef HAL_ADCEx_InjectedStop(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
  
    /* Process locked */
    __HAL_LOCK(hadc);
      
    /* Stop potential conversion and disable ADC peripheral                     */
    /* Conditioned to:                                                          */
    /* - No conversion on the other group (regular group) is intended to        */
    /*   continue (injected and regular groups stop conversion and ADC disable  */
    /*   are common)                                                            */
    /* - In case of auto-injection mode, HAL_ADC_Stop must be used.             */
    if(((hadc->State & HAL_ADC_STATE_REG_BUSY) == RESET)  &&
       HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)   )
    {
      /* Stop potential conversion on going, on regular and injected groups */
      /* Disable ADC peripheral */
      tmp_hal_status = ADC_ConversionStop_Disable(hadc);
      
      /* Check if ADC is effectively disabled */
      if (tmp_hal_status == HAL_OK)
      {
        /* Set ADC state */
        ADC_STATE_CLR_SET(hadc->State,
                          HAL_ADC_STATE_REG_BUSY | HAL_ADC_STATE_INJ_BUSY,
                          HAL_ADC_STATE_READY);
      }
    }
    else
    {
      /* Update ADC state machine to error */
      SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
        
      tmp_hal_status = HAL_ERROR;
    }
    
    /* Process unlocked */
    __HAL_UNLOCK(hadc);
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Wait for injected group conversion to be completed.
    * @param  hadc ADC handle
    * @param  Timeout Timeout value in millisecond.
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADCEx_InjectedPollForConversion(ADC_HandleTypeDef* hadc, uint32_t Timeout)
  {
    uint32_t tickstart;
  
    /* Variables for polling in case of scan mode enabled and polling for each  */
    /* conversion.                                                              */
    /* Note: Variable "conversion_timeout_cpu_cycles" set to offset 28 CPU      */
    /* cycles to compensate number of CPU cycles for processing of variable     */
    /* "conversion_timeout_cpu_cycles_max"                                      */
    uint32_t conversion_timeout_cpu_cycles = 28;
    uint32_t conversion_timeout_cpu_cycles_max = 0;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    
    /* Get timeout */
    tickstart = HAL_GetTick();  
       
    /* Polling for end of conversion: differentiation if single/sequence        */
    /* conversion.                                                              */
    /* For injected group, flag JEOC is set only at the end of the sequence,    */
    /* not for each conversion within the sequence.                             */
    /* If setting "EOCSelection" is set to poll for each single conversion,     */
    /* management of polling depends on setting of injected group sequencer:    */ 
    /*  - If single conversion for injected group (scan mode disabled or        */
    /*    InjectedNbrOfConversion ==1), flag JEOC is used to determine the      */
    /*    conversion completion.                                                */
    /*  - If sequence conversion for injected group (scan mode enabled and      */
    /*    InjectedNbrOfConversion >=2), flag JEOC is set only at the end of the */
    /*    sequence.                                                             */
    /*    To poll for each conversion, the maximum conversion time is computed  */
    /*    from ADC conversion time (selected sampling time + conversion time of */
    /*    12 ADC clock cycles) and APB2/ADC clock prescalers (depending on      */
    /*    settings, conversion time range can vary from 8 to several thousands  */
    /*    of CPU cycles).                                                       */
  
    /* Note: On STM32L1, setting "EOCSelection" is related to regular group     */
    /*       only, by hardware. For compatibility with other STM32 devices,     */
    /*       this setting is related also to injected group by software.        */
    if (((hadc->Instance->JSQR & ADC_JSQR_JL) == RESET)  ||
        (hadc->Init.EOCSelection != ADC_EOC_SINGLE_CONV)   )
    {
      /* Wait until End of Conversion flag is raised */
      while(HAL_IS_BIT_CLR(hadc->Instance->SR, ADC_FLAG_JEOC))
      {
        /* Check if timeout is disabled (set to infinite wait) */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0) || ((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Update ADC state machine to timeout */
            SET_BIT(hadc->State, HAL_ADC_STATE_TIMEOUT);
            
            /* Process unlocked */
            __HAL_UNLOCK(hadc);
            
            return HAL_TIMEOUT;
          }
        }
      }
    }
    else
    {
      /* Computation of CPU cycles corresponding to ADC conversion cycles.      */
      /* Retrieve ADC clock prescaler and ADC maximum conversion cycles on all  */
      /* channels.                                                              */
      conversion_timeout_cpu_cycles_max = ADC_GET_CLOCK_PRESCALER_DECIMAL(hadc);
      conversion_timeout_cpu_cycles_max *= ADC_CONVCYCLES_MAX_RANGE(hadc);
  
      /* Poll with maximum conversion time */
      while(conversion_timeout_cpu_cycles < conversion_timeout_cpu_cycles_max)
      {
        /* Check if timeout is disabled (set to infinite wait) */
        if(Timeout != HAL_MAX_DELAY)
        {
          if((Timeout == 0) || ((HAL_GetTick() - tickstart ) > Timeout))
          {
            /* Update ADC state machine to timeout */
            SET_BIT(hadc->State, HAL_ADC_STATE_TIMEOUT);
  
            /* Process unlocked */
            __HAL_UNLOCK(hadc);
            
            return HAL_TIMEOUT;
          }
        }
        conversion_timeout_cpu_cycles ++;
      }
    }
    
    /* Clear end of conversion flag of injected group if low power feature      */
    /* "Auto Wait" is disabled, to not interfere with this feature until data   */
    /* register is read using function HAL_ADCEx_InjectedGetValue().            */
    if (hadc->Init.LowPowerAutoWait == DISABLE)
    {
      /* Clear injected group conversion flag */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JSTRT | ADC_FLAG_JEOC);
    }
    
    /* Update ADC state machine */
    SET_BIT(hadc->State, HAL_ADC_STATE_INJ_EOC);
    
    /* Determine whether any further conversion upcoming on group injected      */
    /* by external trigger, continuous mode or scan sequence on going.          */
    /* Note: On STM32L1, there is no independent flag of end of sequence.       */
    /*       The test of scan sequence on going is done either with scan        */
    /*       sequence disabled or with end of conversion flag set to            */
    /*       of end of sequence.                                                */
    if(ADC_IS_SOFTWARE_START_INJECTED(hadc)                    &&
       (HAL_IS_BIT_CLR(hadc->Instance->JSQR, ADC_JSQR_JL)  ||
        HAL_IS_BIT_CLR(hadc->Instance->CR2, ADC_CR2_EOCS)    ) &&
       (HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO) &&
        (ADC_IS_SOFTWARE_START_REGULAR(hadc)       &&
        (hadc->Init.ContinuousConvMode == DISABLE)   )       )   )
    {
      /* Set ADC state */
      CLEAR_BIT(hadc->State, HAL_ADC_STATE_INJ_BUSY);
      
      if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_REG_BUSY))
      { 
        SET_BIT(hadc->State, HAL_ADC_STATE_READY);
      }
    }
    
    /* Return ADC state */
    return HAL_OK;
  }
  
  /**
    * @brief  Enables ADC, starts conversion of injected group with interruption.
    *          - JEOC (end of conversion of injected group)
    *         Each of these interruptions has its dedicated callback function.
    * @param  hadc ADC handle
    * @retval HAL status.
    */
  HAL_StatusTypeDef HAL_ADCEx_InjectedStart_IT(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    
    /* Process locked */
    __HAL_LOCK(hadc);
      
    /* Enable the ADC peripheral */
    tmp_hal_status = ADC_Enable(hadc);
    
    /* Start conversion if ADC is effectively enabled */
    if (tmp_hal_status == HAL_OK)
    {
      /* Set ADC state                                                          */
      /* - Clear state bitfield related to injected group conversion results    */
      /* - Set state bitfield related to injected operation                     */
      ADC_STATE_CLR_SET(hadc->State,
                        HAL_ADC_STATE_READY | HAL_ADC_STATE_INJ_EOC,
                        HAL_ADC_STATE_INJ_BUSY);
      
      /* Check if a regular conversion is ongoing */
      /* Note: On this device, there is no ADC error code fields related to     */
      /*       conversions on group injected only. In case of conversion on     */
      /*       going on group regular, no error code is reset.                  */
      if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_REG_BUSY))
      {
        /* Reset ADC all error code fields */
        ADC_CLEAR_ERRORCODE(hadc);
      }
      
      /* Process unlocked */
      /* Unlock before starting ADC conversions: in case of potential           */
      /* interruption, to let the process to ADC IRQ Handler.                   */
      __HAL_UNLOCK(hadc);
      
      /* Clear injected group conversion flag */
      /* (To ensure of no unknown state from potential previous ADC operations) */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_JEOC);
      
      /* Enable end of conversion interrupt for injected channels */
      __HAL_ADC_ENABLE_IT(hadc, ADC_IT_JEOC);
      
      /* Enable conversion of injected group.                                   */
      /* If software start has been selected, conversion starts immediately.    */
      /* If external trigger has been selected, conversion will start at next   */
      /* trigger event.                                                         */
      /* If automatic injected conversion is enabled, conversion will start     */
      /* after next regular group conversion.                                   */
      if (ADC_IS_SOFTWARE_START_INJECTED(hadc)              && 
          HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)  )
      {
        /* Enable ADC software conversion for injected channels */
        SET_BIT(hadc->Instance->CR2, ADC_CR2_JSWSTART);
      }
    }
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Stop conversion of injected channels, disable interruption of 
    *         end-of-conversion. Disable ADC peripheral if no regular conversion
    *         is on going.
    * @note   If ADC must be disabled and if conversion is on going on 
    *         regular group, function HAL_ADC_Stop must be used to stop both
    *         injected and regular groups, and disable the ADC.
    * @note   If injected group mode auto-injection is enabled,
    *         function HAL_ADC_Stop must be used.
    * @param  hadc ADC handle
    * @retval None
    */
  HAL_StatusTypeDef HAL_ADCEx_InjectedStop_IT(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
  
    /* Process locked */
    __HAL_LOCK(hadc);
      
    /* Stop potential conversion and disable ADC peripheral                     */
    /* Conditioned to:                                                          */
    /* - No conversion on the other group (regular group) is intended to        */
    /*   continue (injected and regular groups stop conversion and ADC disable  */
    /*   are common)                                                            */
    /* - In case of auto-injection mode, HAL_ADC_Stop must be used.             */ 
    if(((hadc->State & HAL_ADC_STATE_REG_BUSY) == RESET)  &&
       HAL_IS_BIT_CLR(hadc->Instance->CR1, ADC_CR1_JAUTO)   )
    {
      /* Stop potential conversion on going, on regular and injected groups */
      /* Disable ADC peripheral */
      tmp_hal_status = ADC_ConversionStop_Disable(hadc);
      
      /* Check if ADC is effectively disabled */
      if (tmp_hal_status == HAL_OK)
      {
        /* Disable ADC end of conversion interrupt for injected channels */
        __HAL_ADC_DISABLE_IT(hadc, ADC_IT_JEOC);
        
        /* Set ADC state */
        ADC_STATE_CLR_SET(hadc->State,
                          HAL_ADC_STATE_REG_BUSY | HAL_ADC_STATE_INJ_BUSY,
                          HAL_ADC_STATE_READY);
      }
    }
    else
    {
      /* Update ADC state machine to error */
      SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
        
      tmp_hal_status = HAL_ERROR;
    }
    
    /* Process unlocked */
    __HAL_UNLOCK(hadc);
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Get ADC injected group conversion result.
    * @note   Reading register JDRx automatically clears ADC flag JEOC
    *         (ADC group injected end of unitary conversion).
    * @note   This function does not clear ADC flag JEOS 
    *         (ADC group injected end of sequence conversion)
    *         Occurrence of flag JEOS rising:
    *          - If sequencer is composed of 1 rank, flag JEOS is equivalent
    *            to flag JEOC.
    *          - If sequencer is composed of several ranks, during the scan
    *            sequence flag JEOC only is raised, at the end of the scan sequence
    *            both flags JEOC and EOS are raised.
    *         Flag JEOS must not be cleared by this function because
    *         it would not be compliant with low power features
    *         (feature low power auto-wait, not available on all STM32 families).
    *         To clear this flag, either use function: 
    *         in programming model IT: @ref HAL_ADC_IRQHandler(), in programming
    *         model polling: @ref HAL_ADCEx_InjectedPollForConversion() 
    *         or @ref __HAL_ADC_CLEAR_FLAG(&hadc, ADC_FLAG_JEOS).
    * @param  hadc ADC handle
    * @param  InjectedRank the converted ADC injected rank.
    *          This parameter can be one of the following values:
    *            @arg ADC_INJECTED_RANK_1: Injected Channel1 selected
    *            @arg ADC_INJECTED_RANK_2: Injected Channel2 selected
    *            @arg ADC_INJECTED_RANK_3: Injected Channel3 selected
    *            @arg ADC_INJECTED_RANK_4: Injected Channel4 selected
    * @retval ADC group injected conversion data
    */
  uint32_t HAL_ADCEx_InjectedGetValue(ADC_HandleTypeDef* hadc, uint32_t InjectedRank)
  {
    uint32_t tmp_jdr = 0;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    assert_param(IS_ADC_INJECTED_RANK(InjectedRank));
    
    /* Get ADC converted value */
    switch(InjectedRank)
    {  
      case ADC_INJECTED_RANK_4:
        tmp_jdr = hadc->Instance->JDR4;
        break;
      case ADC_INJECTED_RANK_3: 
        tmp_jdr = hadc->Instance->JDR3;
        break;
      case ADC_INJECTED_RANK_2: 
        tmp_jdr = hadc->Instance->JDR2;
        break;
      case ADC_INJECTED_RANK_1:
      default:
        tmp_jdr = hadc->Instance->JDR1;
        break;
    }
    
    /* Return ADC converted value */ 
    return tmp_jdr;
  }
  
  /**
    * @brief  Injected conversion complete callback in non blocking mode 
    * @param  hadc ADC handle
    * @retval None
    */
  __weak void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef* hadc)
  {
    /* Prevent unused argument(s) compilation warning */
    UNUSED(hadc);
  
    /* NOTE : This function Should not be modified, when the callback is needed,
              the HAL_ADCEx_InjectedConvCpltCallback could be implemented in the user file
    */
  }
  
  /**
    * @}
    */
  
  /** @defgroup ADCEx_Exported_Functions_Group2 ADC Extended Peripheral Control functions
    * @brief    ADC Extended Peripheral Control functions
    *
  @verbatim   
   ===============================================================================
               ##### Peripheral Control functions #####
   ===============================================================================  
      [..]  This section provides functions allowing to:
        (+) Configure channels on injected group
        
  @endverbatim
    * @{
    */
  
  /**
    * @brief  Configures the ADC injected group and the selected channel to be
    *         linked to the injected group.
    * @note   Possibility to update parameters on the fly:
    *         This function initializes injected group, following calls to this 
    *         function can be used to reconfigure some parameters of structure
    *         "ADC_InjectionConfTypeDef" on the fly, without reseting the ADC.
    *         The setting of these parameters is conditioned to ADC state: 
    *         this function must be called when ADC is not under conversion.
    * @param  hadc ADC handle
    * @param  sConfigInjected Structure of ADC injected group and ADC channel for
    *         injected group.
    * @retval None
    */
  HAL_StatusTypeDef HAL_ADCEx_InjectedConfigChannel(ADC_HandleTypeDef* hadc, ADC_InjectionConfTypeDef* sConfigInjected)
  {   
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    __IO uint32_t wait_loop_index = 0;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    assert_param(IS_ADC_CHANNEL(sConfigInjected->InjectedChannel));
    assert_param(IS_ADC_SAMPLE_TIME(sConfigInjected->InjectedSamplingTime));
    assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->AutoInjectedConv));
    assert_param(IS_ADC_EXTTRIGINJEC(sConfigInjected->ExternalTrigInjecConv));
    assert_param(IS_ADC_RANGE(ADC_RESOLUTION_12B, sConfigInjected->InjectedOffset));
    
    if(hadc->Init.ScanConvMode != ADC_SCAN_DISABLE)
    {
      assert_param(IS_ADC_INJECTED_RANK(sConfigInjected->InjectedRank));
      assert_param(IS_ADC_INJECTED_NB_CONV(sConfigInjected->InjectedNbrOfConversion));
      assert_param(IS_FUNCTIONAL_STATE(sConfigInjected->InjectedDiscontinuousConvMode));
    }
    
    if(sConfigInjected->ExternalTrigInjecConv != ADC_INJECTED_SOFTWARE_START)
    {
      assert_param(IS_ADC_EXTTRIGINJEC_EDGE(sConfigInjected->ExternalTrigInjecConvEdge));
    }
    
    /* Process locked */
    __HAL_LOCK(hadc);
    
    /* Configuration of injected group sequencer:                               */
    /* - if scan mode is disabled, injected channels sequence length is set to  */
    /*   0x00: 1 channel converted (channel on regular rank 1)                  */
    /*   Parameter "InjectedNbrOfConversion" is discarded.                      */
    /*   Note: Scan mode is present by hardware on this device and, if          */
    /*   disabled, discards automatically nb of conversions. Anyway, nb of      */
    /*   conversions is forced to 0x00 for alignment over all STM32 devices.    */
    /* - if scan mode is enabled, injected channels sequence length is set to   */
    /*   parameter ""InjectedNbrOfConversion".                                  */
    if (hadc->Init.ScanConvMode == ADC_SCAN_DISABLE)
    {
      if (sConfigInjected->InjectedRank == ADC_INJECTED_RANK_1)
      {
        /* Clear the old SQx bits for all injected ranks */
          MODIFY_REG(hadc->Instance->JSQR                              ,
                     ADC_JSQR_JL   |
                     ADC_JSQR_JSQ4 |
                     ADC_JSQR_JSQ3 |
                     ADC_JSQR_JSQ2 |
                     ADC_JSQR_JSQ1                                     ,
                     ADC_JSQR_RK_JL(sConfigInjected->InjectedChannel,
                                      ADC_INJECTED_RANK_1,
                                      0x01)                             );
      }
      /* If another injected rank than rank1 was intended to be set, and could  */
      /* not due to ScanConvMode disabled, error is reported.                   */
      else
      {
        /* Update ADC state machine to error */
        SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
          
        tmp_hal_status = HAL_ERROR;
      }
    }
    else
    {   
      /* Since injected channels rank conv. order depends on total number of   */
      /* injected conversions, selected rank must be below or equal to total   */
      /* number of injected conversions to be updated.                         */
      if (sConfigInjected->InjectedRank <= sConfigInjected->InjectedNbrOfConversion)
      {
        /* Clear the old SQx bits for the selected rank */
        /* Set the SQx bits for the selected rank */
        MODIFY_REG(hadc->Instance->JSQR                                                     ,
                   
                   ADC_JSQR_JL                                               |
                   ADC_JSQR_RK_JL(ADC_JSQR_JSQ1,                         
                                    sConfigInjected->InjectedRank,         
                                    sConfigInjected->InjectedNbrOfConversion)               ,
                   
                   ADC_JSQR_JL_SHIFT(sConfigInjected->InjectedNbrOfConversion)             |
                   ADC_JSQR_RK_JL(sConfigInjected->InjectedChannel,      
                                                  sConfigInjected->InjectedRank,         
                                                  sConfigInjected->InjectedNbrOfConversion)  );
      }
      else
      {
        /* Clear the old SQx bits for the selected rank */
        MODIFY_REG(hadc->Instance->JSQR                                       ,
                   
                   ADC_JSQR_JL                                               |
                   ADC_JSQR_RK_JL(ADC_JSQR_JSQ1,                         
                                    sConfigInjected->InjectedRank,         
                                    sConfigInjected->InjectedNbrOfConversion) ,
                   
                   0x00000000                                                  );
      }
    } 
      
    /* Enable external trigger if trigger selection is different of software    */
    /* start.                                                                   */
    /* Note: This configuration keeps the hardware feature of parameter         */
    /*       ExternalTrigConvEdge "trigger edge none" equivalent to             */
    /*       software start.                                                    */
    
    if (sConfigInjected->ExternalTrigInjecConv != ADC_INJECTED_SOFTWARE_START)
    {    
      MODIFY_REG(hadc->Instance->CR2                        ,
                 ADC_CR2_JEXTEN  |
                 ADC_CR2_JEXTSEL                            ,
                 sConfigInjected->ExternalTrigInjecConv    |
                 sConfigInjected->ExternalTrigInjecConvEdge  );
    }
    else
    {
      MODIFY_REG(hadc->Instance->CR2,
                 ADC_CR2_JEXTEN  |
                 ADC_CR2_JEXTSEL    ,
                 0x00000000          );
    }
  
    /* Configuration of injected group                                          */
    /* Parameters update conditioned to ADC state:                              */
    /* Parameters that can be updated only when ADC is disabled:                */
    /*  - Automatic injected conversion                                         */
    /*  - Injected discontinuous mode                                           */
    if ((ADC_IS_ENABLE(hadc) == RESET))
    {
      hadc->Instance->CR1 &= ~(ADC_CR1_JAUTO   |
                               ADC_CR1_JDISCEN  );
      
      /* Automatic injected conversion can be enabled if injected group         */
      /* external triggers are disabled.                                        */
      if (sConfigInjected->AutoInjectedConv == ENABLE)
      {
        if (sConfigInjected->ExternalTrigInjecConv == ADC_INJECTED_SOFTWARE_START)
        {
          SET_BIT(hadc->Instance->CR1, ADC_CR1_JAUTO);
        }
        else
        {
          /* Update ADC state machine to error */
          SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
          
          tmp_hal_status = HAL_ERROR;
        }
      }
      
      /* Injected discontinuous can be enabled only if auto-injected mode is    */
      /* disabled.                                                              */  
      if (sConfigInjected->InjectedDiscontinuousConvMode == ENABLE)
      {
        if (sConfigInjected->AutoInjectedConv == DISABLE)
        {
          SET_BIT(hadc->Instance->CR1, ADC_CR1_JDISCEN);
        } 
        else
        {
          /* Update ADC state machine to error */
          SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
          
          tmp_hal_status = HAL_ERROR;
        }
      }
    }
  
    /* Channel sampling time configuration */
    /* For InjectedChannels 0 to 9 */
    if (sConfigInjected->InjectedChannel < ADC_CHANNEL_10)
    {
      MODIFY_REG(hadc->Instance->SMPR3,
                 ADC_SMPR3(ADC_SMPR3_SMP0, sConfigInjected->InjectedChannel),
                 ADC_SMPR3(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
    }
    /* For InjectedChannels 10 to 19 */
    else if (sConfigInjected->InjectedChannel < ADC_CHANNEL_20)
    {
      MODIFY_REG(hadc->Instance->SMPR2,
                 ADC_SMPR2(ADC_SMPR2_SMP10, sConfigInjected->InjectedChannel),
                 ADC_SMPR2(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
    }
    /* For InjectedChannels 20 to 26 for devices Cat.1, Cat.2, Cat.3 */
    /* For InjectedChannels 20 to 29 for devices Cat4, Cat.5 */
    else if (sConfigInjected->InjectedChannel <= ADC_SMPR1_CHANNEL_MAX)
    {   
      MODIFY_REG(hadc->Instance->SMPR1,
                 ADC_SMPR1(ADC_SMPR1_SMP20, sConfigInjected->InjectedChannel),
                 ADC_SMPR1(sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel) );
    }
    /* For InjectedChannels 30 to 31 for devices Cat4, Cat.5 */
    else
    {
      ADC_SMPR0_CHANNEL_SET(hadc, sConfigInjected->InjectedSamplingTime, sConfigInjected->InjectedChannel);
    }
    
    
    /* Configure the offset: offset enable/disable, InjectedChannel, offset value */
    switch(sConfigInjected->InjectedRank)
    {
      case 1:
        /* Set injected channel 1 offset */
        MODIFY_REG(hadc->Instance->JOFR1,
                   ADC_JOFR1_JOFFSET1,
                   sConfigInjected->InjectedOffset);
        break;
      case 2:
        /* Set injected channel 2 offset */
        MODIFY_REG(hadc->Instance->JOFR2,
                   ADC_JOFR2_JOFFSET2,
                   sConfigInjected->InjectedOffset);
        break;
      case 3:
        /* Set injected channel 3 offset */
        MODIFY_REG(hadc->Instance->JOFR3,
                   ADC_JOFR3_JOFFSET3,
                   sConfigInjected->InjectedOffset);
        break;
      case 4:
      default:
        MODIFY_REG(hadc->Instance->JOFR4,
                   ADC_JOFR4_JOFFSET4,
                   sConfigInjected->InjectedOffset);
        break;
    }
    
    /* If ADC1 Channel_16 or Channel_17 is selected, enable Temperature sensor  */
    /* and VREFINT measurement path.                                            */
    if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR) ||
        (sConfigInjected->InjectedChannel == ADC_CHANNEL_VREFINT)      )
    {
      SET_BIT(ADC->CCR, ADC_CCR_TSVREFE);
      
      if ((sConfigInjected->InjectedChannel == ADC_CHANNEL_TEMPSENSOR))
      {
        /* Delay for temperature sensor stabilization time */
        /* Compute number of CPU cycles to wait for */
        wait_loop_index = (ADC_TEMPSENSOR_DELAY_US * (SystemCoreClock / 1000000));
        while(wait_loop_index != 0)
        {
          wait_loop_index--;
        }
      }
    }
    
    /* Process unlocked */
    __HAL_UNLOCK(hadc);
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @}
    */  
  
  /**
    * @}
    */
  
  #endif /* HAL_ADC_MODULE_ENABLED */
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  