text: /**
    ******************************************************************************
    * @file    stm32f0xx_hal_adc.c
    * @author  MCD Application Team
    * @brief   This file provides firmware functions to manage the following 
    *          functionalities of the Analog to Digital Convertor (ADC)
    *          peripheral:
    *           + Initialization and de-initialization functions
    *             ++ Initialization and Configuration of ADC
    *           + Operation functions
    *             ++ Start, stop, get result of conversions of regular
    *                group, using 3 possible modes: polling, interruption or DMA.
    *           + Control functions
    *             ++ Channels configuration on regular group
    *             ++ Analog Watchdog configuration
    *           + State functions
    *             ++ ADC state machine management
    *             ++ Interrupts and flags management
    *          Other functions (extended functions) are available in file 
    *          "stm32f0xx_hal_adc_ex.c".
    *
    @verbatim
    ==============================================================================
                       ##### ADC peripheral features #####
    ==============================================================================
    [..]
    (+) 12-bit, 10-bit, 8-bit or 6-bit configurable resolution
  
    (+) Interrupt generation at the end of regular conversion and in case of 
        analog watchdog or overrun events.
    
    (+) Single and continuous conversion modes.
    
    (+) Scan mode for conversion of several channels sequentially.
    
    (+) Data alignment with in-built data coherency.
    
    (+) Programmable sampling time (common for all channels)
    
    (+) ADC conversion of regular group.
  
    (+) External trigger (timer or EXTI) with configurable polarity
  
    (+) DMA request generation for transfer of conversions data of regular group.
  
    (+) ADC calibration
    
    (+) ADC supply requirements: 2.4 V to 3.6 V at full speed and down to 1.8 V at 
        slower speed.
    
    (+) ADC input range: from Vref- (connected to Vssa) to Vref+ (connected to 
        Vdda or to an external voltage reference).
  
  
                       ##### How to use this driver #####
    ==============================================================================
      [..]
  
       *** Configuration of top level parameters related to ADC ***
       ============================================================
       [..]
  
      (#) Enable the ADC interface
        (++) As prerequisite, ADC clock must be configured at RCC top level.
             Caution: On STM32F0, ADC clock frequency max is 14MHz (refer
                      to device datasheet).
                      Therefore, ADC clock prescaler must be configured in 
                      function of ADC clock source frequency to remain below
                      this maximum frequency.
  
          (++) Two clock settings are mandatory: 
               (+++) ADC clock (core clock, also possibly conversion clock).
  
               (+++) ADC clock (conversions clock).
                     Two possible clock sources: synchronous clock derived from APB clock
                     or asynchronous clock derived from ADC dedicated HSI RC oscillator
                     14MHz.
                     If asynchronous clock is selected, parameter "HSI14State" must be set either:
                     - to "...HSI14State = RCC_HSI14_ADC_CONTROL" to let the ADC control 
                       the HSI14 oscillator enable/disable (if not used to supply the main 
                       system clock): feature used if ADC mode LowPowerAutoPowerOff is 
                       enabled.
                     - to "...HSI14State = RCC_HSI14_ON" to maintain the HSI14 oscillator
                       always enabled: can be used to supply the main system clock.
  
               (+++) Example:
                     Into HAL_ADC_MspInit() (recommended code location) or with
                     other device clock parameters configuration:
                 (+++) __HAL_RCC_ADC1_CLK_ENABLE();                         (mandatory)
  
                 HI14 enable or let under control of ADC:           (optional: if asynchronous clock selected)
                 (+++) RCC_OscInitTypeDef   RCC_OscInitStructure;
                 (+++) RCC_OscInitStructure.OscillatorType = RCC_OSCILLATORTYPE_HSI14;
                 (+++) RCC_OscInitStructure.HSI14CalibrationValue = RCC_HSI14CALIBRATION_DEFAULT;
                 (+++) RCC_OscInitStructure.HSI14State = RCC_HSI14_ADC_CONTROL;
                 (+++) RCC_OscInitStructure.PLL...   (optional if used for system clock)
                 (+++) HAL_RCC_OscConfig(&RCC_OscInitStructure);
  
          (++) ADC clock source and clock prescaler are configured at ADC level with
               parameter "ClockPrescaler" using function HAL_ADC_Init().
  
      (#) ADC pins configuration
           (++) Enable the clock for the ADC GPIOs
                using macro __HAL_RCC_GPIOx_CLK_ENABLE()
           (++) Configure these ADC pins in analog mode
                using function HAL_GPIO_Init()
  
      (#) Optionally, in case of usage of ADC with interruptions:
           (++) Configure the NVIC for ADC
                using function HAL_NVIC_EnableIRQ(ADCx_IRQn)
           (++) Insert the ADC interruption handler function HAL_ADC_IRQHandler() 
                into the function of corresponding ADC interruption vector 
                ADCx_IRQHandler().
  
      (#) Optionally, in case of usage of DMA:
           (++) Configure the DMA (DMA channel, mode normal or circular, ...)
                using function HAL_DMA_Init().
           (++) Configure the NVIC for DMA
                using function HAL_NVIC_EnableIRQ(DMAx_Channelx_IRQn)
           (++) Insert the ADC interruption handler function HAL_ADC_IRQHandler() 
                into the function of corresponding DMA interruption vector 
                DMAx_Channelx_IRQHandler().
    
       *** Configuration of ADC, group regular, channels parameters ***
       ================================================================
       [..]
  
      (#) Configure the ADC parameters (resolution, data alignment, ...)
          and regular group parameters (conversion trigger, sequencer, ...)
          using function HAL_ADC_Init().
  
      (#) Configure the channels for regular group parameters (channel number, 
          channel rank into sequencer, ..., into regular group)
          using function HAL_ADC_ConfigChannel().
  
      (#) Optionally, configure the analog watchdog parameters (channels
          monitored, thresholds, ...)
          using function HAL_ADC_AnalogWDGConfig().
  
       *** Execution of ADC conversions ***
       ====================================
       [..]
  
      (#) Optionally, perform an automatic ADC calibration to improve the
          conversion accuracy
          using function HAL_ADCEx_Calibration_Start().
  
      (#) ADC driver can be used among three modes: polling, interruption,
          transfer by DMA.
  
          (++) ADC conversion by polling:
            (+++) Activate the ADC peripheral and start conversions
                  using function HAL_ADC_Start()
            (+++) Wait for ADC conversion completion 
                  using function HAL_ADC_PollForConversion()
            (+++) Retrieve conversion results 
                  using function HAL_ADC_GetValue()
            (+++) Stop conversion and disable the ADC peripheral 
                  using function HAL_ADC_Stop()
  
          (++) ADC conversion by interruption: 
            (+++) Activate the ADC peripheral and start conversions
                  using function HAL_ADC_Start_IT()
            (+++) Wait for ADC conversion completion by call of function
                  HAL_ADC_ConvCpltCallback()
                  (this function must be implemented in user program)
            (+++) Retrieve conversion results 
                  using function HAL_ADC_GetValue()
            (+++) Stop conversion and disable the ADC peripheral 
                  using function HAL_ADC_Stop_IT()
  
          (++) ADC conversion with transfer by DMA:
            (+++) Activate the ADC peripheral and start conversions
                  using function HAL_ADC_Start_DMA()
            (+++) Wait for ADC conversion completion by call of function
                  HAL_ADC_ConvCpltCallback() or HAL_ADC_ConvHalfCpltCallback()
                  (these functions must be implemented in user program)
            (+++) Conversion results are automatically transferred by DMA into
                  destination variable address.
            (+++) Stop conversion and disable the ADC peripheral 
                  using function HAL_ADC_Stop_DMA()
  
       [..]
  
      (@) Callback functions must be implemented in user program:
        (+@) HAL_ADC_ErrorCallback()
        (+@) HAL_ADC_LevelOutOfWindowCallback() (callback of analog watchdog)
        (+@) HAL_ADC_ConvCpltCallback()
        (+@) HAL_ADC_ConvHalfCpltCallback
  
       *** Deinitialization of ADC ***
       ============================================================
       [..]
  
      (#) Disable the ADC interface
        (++) ADC clock can be hard reset and disabled at RCC top level.
          (++) Hard reset of ADC peripherals
               using macro __ADCx_FORCE_RESET(), __ADCx_RELEASE_RESET().
          (++) ADC clock disable
               using the equivalent macro/functions as configuration step.
               (+++) Example:
                     Into HAL_ADC_MspDeInit() (recommended code location) or with
                     other device clock parameters configuration:
                 (+++) RCC_OscInitStructure.OscillatorType = RCC_OSCILLATORTYPE_HSI14;
                 (+++) RCC_OscInitStructure.HSI14State = RCC_HSI14_OFF; (if not used for system clock)
                 (+++) HAL_RCC_OscConfig(&RCC_OscInitStructure);
  
      (#) ADC pins configuration
           (++) Disable the clock for the ADC GPIOs
                using macro __HAL_RCC_GPIOx_CLK_DISABLE()
  
      (#) Optionally, in case of usage of ADC with interruptions:
           (++) Disable the NVIC for ADC
                using function HAL_NVIC_DisableIRQ(ADCx_IRQn)
  
      (#) Optionally, in case of usage of DMA:
           (++) Deinitialize the DMA
                using function HAL_DMA_DeInit().
           (++) Disable the NVIC for DMA
                using function HAL_NVIC_DisableIRQ(DMAx_Channelx_IRQn)
  
      [..]
  
      *** Callback registration ***
      =============================================
      [..]
  
       The compilation flag USE_HAL_ADC_REGISTER_CALLBACKS, when set to 1,
       allows the user to configure dynamically the driver callbacks.
       Use Functions HAL_ADC_RegisterCallback()
       to register an interrupt callback.
      [..]
  
       Function HAL_ADC_RegisterCallback() allows to register following callbacks:
         (+) ConvCpltCallback               : ADC conversion complete callback
         (+) ConvHalfCpltCallback           : ADC conversion DMA half-transfer callback
         (+) LevelOutOfWindowCallback       : ADC analog watchdog 1 callback
         (+) ErrorCallback                  : ADC error callback
         (+) MspInitCallback                : ADC Msp Init callback
         (+) MspDeInitCallback              : ADC Msp DeInit callback
       This function takes as parameters the HAL peripheral handle, the Callback ID
       and a pointer to the user callback function.
      [..]
  
       Use function HAL_ADC_UnRegisterCallback to reset a callback to the default
       weak function.
      [..]
  
       HAL_ADC_UnRegisterCallback takes as parameters the HAL peripheral handle,
       and the Callback ID.
       This function allows to reset following callbacks:
         (+) ConvCpltCallback               : ADC conversion complete callback
         (+) ConvHalfCpltCallback           : ADC conversion DMA half-transfer callback
         (+) LevelOutOfWindowCallback       : ADC analog watchdog 1 callback
         (+) ErrorCallback                  : ADC error callback
         (+) MspInitCallback                : ADC Msp Init callback
         (+) MspDeInitCallback              : ADC Msp DeInit callback
       [..]
  
       By default, after the HAL_ADC_Init() and when the state is HAL_ADC_STATE_RESET
       all callbacks are set to the corresponding weak functions:
       examples HAL_ADC_ConvCpltCallback(), HAL_ADC_ErrorCallback().
       Exception done for MspInit and MspDeInit functions that are
       reset to the legacy weak functions in the HAL_ADC_Init()/ HAL_ADC_DeInit() only when
       these callbacks are null (not registered beforehand).
      [..]
  
       If MspInit or MspDeInit are not null, the HAL_ADC_Init()/ HAL_ADC_DeInit()
       keep and use the user MspInit/MspDeInit callbacks (registered beforehand) whatever the state.
       [..]
  
       Callbacks can be registered/unregistered in HAL_ADC_STATE_READY state only.
       Exception done MspInit/MspDeInit functions that can be registered/unregistered
       in HAL_ADC_STATE_READY or HAL_ADC_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_ADC_RegisterCallback() before calling HAL_ADC_DeInit()
       or HAL_ADC_Init() function.
       [..]
  
       When the compilation flag USE_HAL_ADC_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.
    
      @endverbatim
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2016 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 "stm32f0xx_hal.h"
  
  /** @addtogroup STM32F0xx_HAL_Driver
    * @{
    */
  
  /** @defgroup ADC ADC
    * @brief ADC HAL module driver
    * @{
    */
  
  #ifdef HAL_ADC_MODULE_ENABLED
  
  /* Private typedef -----------------------------------------------------------*/
  /* Private define ------------------------------------------------------------*/
  /** @defgroup ADC_Private_Constants ADC Private Constants
    * @{
    */
  
    /* Fixed timeout values for ADC calibration, enable settling time, disable  */
    /* settling time.                                                           */
    /* Values defined to be higher than worst cases: low clock frequency,       */
    /* maximum prescaler.                                                       */
    /* Ex of profile low frequency : Clock source at 0.1 MHz, ADC clock         */
    /* prescaler 4, sampling time 7.5 ADC clock cycles, resolution 12 bits.     */
    /* Unit: ms                                                                 */
    #define ADC_ENABLE_TIMEOUT             ( 2U)
    #define ADC_DISABLE_TIMEOUT            ( 2U)
    #define ADC_STOP_CONVERSION_TIMEOUT    ( 2U)
  
    /* Delay for ADC stabilization time.                                        */
    /* Maximum delay is 1us (refer to device datasheet, parameter tSTAB).       */
    /* Unit: us                                                                 */
    #define ADC_STAB_DELAY_US               ( 1U)
  
    /* 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 -----------------------------------------------*/
  /** @defgroup ADC_Private_Functions ADC Private Functions
    * @{
    */
  static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc);
  static HAL_StatusTypeDef ADC_Disable(ADC_HandleTypeDef* hadc);
  static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc);
  static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma);
  static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma);
  static void ADC_DMAError(DMA_HandleTypeDef *hdma);
  /**
      * @}
      */
  
  /* Exported functions ---------------------------------------------------------*/
  
  /** @defgroup ADC_Exported_Functions ADC Exported Functions
    * @{
    */
  
  /** @defgroup ADC_Exported_Functions_Group1 Initialization/de-initialization functions 
   *  @brief    Initialization and Configuration functions 
   *
  @verbatim    
   ===============================================================================
                ##### Initialization and de-initialization functions #####
   ===============================================================================
      [..]  This section provides functions allowing to:
        (+) Initialize and configure the ADC. 
        (+) De-initialize the ADC
  @endverbatim
    * @{
    */
  
  /**
    * @brief  Initializes the ADC peripheral and regular group according to  
    *         parameters specified in structure "ADC_InitTypeDef".
    * @note   As prerequisite, ADC clock must be configured at RCC top level
    *         depending on both possible clock sources: APB clock of HSI clock.
    *         See commented example code below that can be copied and uncommented 
    *         into HAL_ADC_MspInit().
    * @note   Possibility to update parameters on the fly:
    *         This function initializes the ADC MSP (HAL_ADC_MspInit()) only when
    *         coming from ADC state reset. Following calls to this function can
    *         be used to reconfigure some parameters of ADC_InitTypeDef  
    *         structure on the fly, without modifying MSP configuration. If ADC  
    *         MSP has to be modified again, HAL_ADC_DeInit() must be called
    *         before HAL_ADC_Init().
    *         The setting of these parameters is conditioned to ADC state.
    *         For parameters constraints, see comments of structure 
    *         "ADC_InitTypeDef".
    * @note   This function configures the ADC within 2 scopes: scope of entire 
    *         ADC and scope of regular group. For parameters details, see comments 
    *         of structure "ADC_InitTypeDef".
    * @param  hadc ADC handle
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_Init(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    uint32_t tmpCFGR1 = 0U;
  
    /* Check ADC handle */
    if(hadc == NULL)
    {
      return HAL_ERROR;
    }
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    assert_param(IS_ADC_CLOCKPRESCALER(hadc->Init.ClockPrescaler));
    assert_param(IS_ADC_RESOLUTION(hadc->Init.Resolution));
    assert_param(IS_ADC_DATA_ALIGN(hadc->Init.DataAlign)); 
    assert_param(IS_ADC_SCAN_MODE(hadc->Init.ScanConvMode));
    assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode));
    assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DiscontinuousConvMode));
    assert_param(IS_ADC_EXTTRIG_EDGE(hadc->Init.ExternalTrigConvEdge));   
    assert_param(IS_ADC_EXTTRIG(hadc->Init.ExternalTrigConv));   
    assert_param(IS_FUNCTIONAL_STATE(hadc->Init.DMAContinuousRequests));
    assert_param(IS_ADC_EOC_SELECTION(hadc->Init.EOCSelection));
    assert_param(IS_ADC_OVERRUN(hadc->Init.Overrun));
    assert_param(IS_FUNCTIONAL_STATE(hadc->Init.LowPowerAutoWait));
    assert_param(IS_FUNCTIONAL_STATE(hadc->Init.LowPowerAutoPowerOff));
    
    /* As prerequisite, into HAL_ADC_MspInit(), ADC clock must be configured    */
    /* at RCC top level depending on both possible clock sources:               */
    /* APB clock or HSI clock.                                                  */
    /* Refer to header of this file for more details on clock enabling procedure*/
    
    /* Actions performed only if ADC is coming from state reset:                */
    /* - Initialization of ADC MSP                                              */
    /* - ADC voltage regulator enable                                           */
    if (hadc->State == HAL_ADC_STATE_RESET)
    {
      /* Initialize ADC error code */
      ADC_CLEAR_ERRORCODE(hadc);
      
      /* Allocate lock resource and initialize it */
      hadc->Lock = HAL_UNLOCKED;
      
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
      /* Init the ADC Callback settings */
      hadc->ConvCpltCallback              = HAL_ADC_ConvCpltCallback;                 /* Legacy weak callback */
      hadc->ConvHalfCpltCallback          = HAL_ADC_ConvHalfCpltCallback;             /* Legacy weak callback */
      hadc->LevelOutOfWindowCallback      = HAL_ADC_LevelOutOfWindowCallback;         /* Legacy weak callback */
      hadc->ErrorCallback                 = HAL_ADC_ErrorCallback;                    /* Legacy weak callback */
      
      if (hadc->MspInitCallback == NULL)
      {
        hadc->MspInitCallback = HAL_ADC_MspInit; /* Legacy weak MspInit  */
      }
      
      /* Init the low level hardware */
      hadc->MspInitCallback(hadc);
  #else
      /* Init the low level hardware */
      HAL_ADC_MspInit(hadc);
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
    }
    
    /* Configuration of ADC parameters if previous preliminary actions are      */ 
    /* correctly completed.                                                     */
    /* and if there is no conversion on going on regular group (ADC can be      */ 
    /* enabled anyway, in case of call of this function to update a parameter   */
    /* on the fly).                                                             */
    if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL) &&
        (tmp_hal_status == HAL_OK)                                &&
        (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)          )
    {
      /* Set ADC state */
      ADC_STATE_CLR_SET(hadc->State,
                        HAL_ADC_STATE_REG_BUSY,
                        HAL_ADC_STATE_BUSY_INTERNAL);
      
      /* Parameters update conditioned to ADC state:                            */
      /* Parameters that can be updated only when ADC is disabled:              */
      /*  - ADC clock mode                                                      */
      /*  - ADC clock prescaler                                                 */
      /*  - ADC resolution                                                      */
      if (ADC_IS_ENABLE(hadc) == RESET)
      {
        /* Some parameters of this register are not reset, since they are set   */
        /* by other functions and must be kept in case of usage of this         */
        /* function on the fly (update of a parameter of ADC_InitTypeDef        */
        /* without needing to reconfigure all other ADC groups/channels         */
        /* parameters):                                                         */
        /*   - internal measurement paths: Vbat, temperature sensor, Vref       */
        /*     (set into HAL_ADC_ConfigChannel() )                              */
       
        /* Configuration of ADC resolution                                      */
        MODIFY_REG(hadc->Instance->CFGR1,
                   ADC_CFGR1_RES        ,
                   hadc->Init.Resolution );
        
        /* Configuration of ADC clock mode: clock source AHB or HSI with        */
        /* selectable prescaler                                                 */
        MODIFY_REG(hadc->Instance->CFGR2    ,
                   ADC_CFGR2_CKMODE         ,
                   hadc->Init.ClockPrescaler );
      }
        
      /* Configuration of ADC:                                                  */
      /*  - discontinuous mode                                                  */
      /*  - LowPowerAutoWait mode                                               */
      /*  - LowPowerAutoPowerOff mode                                           */
      /*  - continuous conversion mode                                          */
      /*  - overrun                                                             */
      /*  - external trigger to start conversion                                */
      /*  - external trigger polarity                                           */
      /*  - data alignment                                                      */
      /*  - resolution                                                          */
      /*  - scan direction                                                      */
      /*  - DMA continuous request                                              */
      hadc->Instance->CFGR1 &= ~( ADC_CFGR1_DISCEN  |
                                  ADC_CFGR1_AUTOFF  |
                                  ADC_CFGR1_AUTDLY  |
                                  ADC_CFGR1_CONT    |
                                  ADC_CFGR1_OVRMOD  |
                                  ADC_CFGR1_EXTSEL  |
                                  ADC_CFGR1_EXTEN   |
                                  ADC_CFGR1_ALIGN   |
                                  ADC_CFGR1_SCANDIR |
                                  ADC_CFGR1_DMACFG   );
  
      tmpCFGR1 |= (ADC_CFGR1_AUTOWAIT((uint32_t)hadc->Init.LowPowerAutoWait)        |
                   ADC_CFGR1_AUTOOFF((uint32_t)hadc->Init.LowPowerAutoPowerOff)     |
                   ADC_CFGR1_CONTINUOUS((uint32_t)hadc->Init.ContinuousConvMode)    |
                   ADC_CFGR1_OVERRUN(hadc->Init.Overrun)                            |
                   hadc->Init.DataAlign                                             |
                   ADC_SCANDIR(hadc->Init.ScanConvMode)                             |
                   ADC_CFGR1_DMACONTREQ((uint32_t)hadc->Init.DMAContinuousRequests)  );
      
      /* Enable discontinuous mode only if continuous mode is disabled */
      if (hadc->Init.DiscontinuousConvMode == ENABLE)
      {
        if (hadc->Init.ContinuousConvMode == DISABLE)
        {
          /* Enable the selected ADC group regular discontinuous mode */
          tmpCFGR1 |= ADC_CFGR1_DISCEN;
        }
        else
        {
          /* ADC regular group discontinuous was intended to be enabled,        */
          /* but ADC regular group modes continuous and sequencer discontinuous */
          /* cannot be enabled simultaneously.                                  */
          
          /* Update ADC state machine to error */
          SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
          
          /* Set ADC error code to ADC IP internal error */
          SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
        }
      }
      
      /* 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 (hadc->Init.ExternalTrigConv != ADC_SOFTWARE_START)
      {
        tmpCFGR1 |= ( hadc->Init.ExternalTrigConv    |
                      hadc->Init.ExternalTrigConvEdge );
      }
      
      /* Update ADC configuration register with previous settings */
      hadc->Instance->CFGR1 |= tmpCFGR1;
      
      /* Channel sampling time configuration */
      /* Management of parameters "SamplingTimeCommon" and "SamplingTime"       */
      /* (obsolete): sampling time set in this function if parameter            */
      /*  "SamplingTimeCommon" has been set to a valid sampling time.           */
      /* Otherwise, sampling time is set into ADC channel initialization        */
      /* structure with parameter "SamplingTime" (obsolete).                    */
      if (IS_ADC_SAMPLE_TIME(hadc->Init.SamplingTimeCommon))
      {
        /* Channel sampling time configuration */
        /* Clear the old sample time */
        hadc->Instance->SMPR &= ~(ADC_SMPR_SMP);
        
        /* Set the new sample time */
        hadc->Instance->SMPR |= ADC_SMPR_SET(hadc->Init.SamplingTimeCommon);
      }
      
      /* Check back that ADC registers have effectively been configured to      */
      /* ensure of no potential problem of ADC core IP clocking.                */
      /* Check through register CFGR1 (excluding analog watchdog configuration: */
      /* set into separate dedicated function, and bits of ADC resolution set   */
      /* out of temporary variable 'tmpCFGR1').                                 */
      if ((hadc->Instance->CFGR1 & ~(ADC_CFGR1_AWDCH | ADC_CFGR1_AWDEN | ADC_CFGR1_AWDSGL | ADC_CFGR1_RES))
           == tmpCFGR1)
      {
        /* Set ADC error code to none */
        ADC_CLEAR_ERRORCODE(hadc);
        
        /* Set the ADC state */
        ADC_STATE_CLR_SET(hadc->State,
                          HAL_ADC_STATE_BUSY_INTERNAL,
                          HAL_ADC_STATE_READY);
      }
      else
      {
        /* Update ADC state machine to error */
        ADC_STATE_CLR_SET(hadc->State,
                          HAL_ADC_STATE_BUSY_INTERNAL,
                          HAL_ADC_STATE_ERROR_INTERNAL);
        
        /* Set ADC error code to ADC IP internal error */
        SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
        
        tmp_hal_status = HAL_ERROR;
      }
    
    }
    else
    {
      /* Update ADC state machine to error */
      SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL);
          
      tmp_hal_status = HAL_ERROR;
    }
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  
  /**
    * @brief  Deinitialize the ADC peripheral registers to their default reset
    *         values, with deinitialization of the ADC MSP.
    * @note   For devices with several ADCs: reset of ADC common registers is done 
    *         only if all ADCs sharing the same common group are disabled.
    *         If this is not the case, reset of these common parameters reset is  
    *         bypassed without error reporting: it can be the intended behaviour in
    *         case of reset of a single ADC while the other ADCs sharing the same 
    *         common group is still running.
    * @param  hadc ADC handle
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_DeInit(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    /* Check ADC handle */
    if(hadc == NULL)
    {
       return HAL_ERROR;
    }
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    
    /* Set ADC state */
    SET_BIT(hadc->State, HAL_ADC_STATE_BUSY_INTERNAL);
    
    /* Stop potential conversion on going, on regular group */
    tmp_hal_status = ADC_ConversionStop(hadc);
    
    /* Disable ADC peripheral if conversions are effectively stopped */
    if (tmp_hal_status == HAL_OK)
    {   
      /* Disable the ADC peripheral */
      tmp_hal_status = ADC_Disable(hadc);
      
      /* Check if ADC is effectively disabled */
      if (tmp_hal_status != HAL_ERROR)
      {
        /* Change ADC state */
        hadc->State = HAL_ADC_STATE_READY;
      }
    }
    
    
    /* Configuration of ADC parameters if previous preliminary actions are      */ 
    /* correctly completed.                                                     */
    if (tmp_hal_status != HAL_ERROR)
    {
    
      /* ========== Reset ADC registers ========== */
      /* Reset register IER */
      __HAL_ADC_DISABLE_IT(hadc, (ADC_IT_AWD   | ADC_IT_OVR  |
                                  ADC_IT_EOS   | ADC_IT_EOC  |
                                  ADC_IT_EOSMP | ADC_IT_RDY   ) );
          
      /* Reset register ISR */
      __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_AWD   | ADC_FLAG_OVR  |
                                  ADC_FLAG_EOS   | ADC_FLAG_EOC  |
                                  ADC_FLAG_EOSMP | ADC_FLAG_RDY   ) );
        
      /* Reset register CR */
      /* Bits ADC_CR_ADCAL, ADC_CR_ADSTP, ADC_CR_ADSTART are in access mode     */
      /* "read-set": no direct reset applicable.                                */
  
      /* Reset register CFGR1 */
      hadc->Instance->CFGR1 &= ~(ADC_CFGR1_AWDCH   | ADC_CFGR1_AWDEN  | ADC_CFGR1_AWDSGL | ADC_CFGR1_DISCEN |
                                 ADC_CFGR1_AUTOFF  | ADC_CFGR1_WAIT   | ADC_CFGR1_CONT   | ADC_CFGR1_OVRMOD |     
                                 ADC_CFGR1_EXTEN   | ADC_CFGR1_EXTSEL | ADC_CFGR1_ALIGN  | ADC_CFGR1_RES    |
                                 ADC_CFGR1_SCANDIR | ADC_CFGR1_DMACFG | ADC_CFGR1_DMAEN                      );
      
      /* Reset register CFGR2 */
      /* Note: Update of ADC clock mode is conditioned to ADC state disabled:   */
      /*       already done above.                                              */
      hadc->Instance->CFGR2 &= ~ADC_CFGR2_CKMODE;
      
      /* Reset register SMPR */
      hadc->Instance->SMPR &= ~ADC_SMPR_SMP;
      
      /* Reset register TR1 */
      hadc->Instance->TR &= ~(ADC_TR_HT | ADC_TR_LT);
      
      /* Reset register CHSELR */
      hadc->Instance->CHSELR &= ~(ADC_CHSELR_CHSEL18 | ADC_CHSELR_CHSEL17 | ADC_CHSELR_CHSEL16 |
                                  ADC_CHSELR_CHSEL15 | ADC_CHSELR_CHSEL14 | ADC_CHSELR_CHSEL13 | ADC_CHSELR_CHSEL12 |
                                  ADC_CHSELR_CHSEL11 | ADC_CHSELR_CHSEL10 | ADC_CHSELR_CHSEL9  | ADC_CHSELR_CHSEL8  |
                                  ADC_CHSELR_CHSEL7  | ADC_CHSELR_CHSEL6  | ADC_CHSELR_CHSEL5  | ADC_CHSELR_CHSEL4  |
                                  ADC_CHSELR_CHSEL3  | ADC_CHSELR_CHSEL2  | ADC_CHSELR_CHSEL1  | ADC_CHSELR_CHSEL0   );
      
      /* Reset register DR */
      /* bits in access mode read only, no direct reset applicable*/
      
      /* Reset register CCR */
      ADC->CCR &= ~(ADC_CCR_ALL);
  
      /* ========== Hard reset ADC peripheral ========== */
      /* Performs a global reset of the entire ADC peripheral: ADC state is     */
      /* forced to a similar state after device power-on.                       */
      /* If needed, copy-paste and uncomment the following reset code into      */
      /* function "void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)":              */
      /*                                                                        */
      /*  __HAL_RCC_ADC1_FORCE_RESET()                                                  */
      /*  __HAL_RCC_ADC1_RELEASE_RESET()                                                */
  
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
      if (hadc->MspDeInitCallback == NULL)
      {
        hadc->MspDeInitCallback = HAL_ADC_MspDeInit; /* Legacy weak MspDeInit  */
      }
      
      /* DeInit the low level hardware */
      hadc->MspDeInitCallback(hadc);
  #else
      /* DeInit the low level hardware */
      HAL_ADC_MspDeInit(hadc);
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
  
      /* Set ADC error code to none */
      ADC_CLEAR_ERRORCODE(hadc);
      
      /* Set ADC state */
      hadc->State = HAL_ADC_STATE_RESET; 
    }
    
    /* Process unlocked */
    __HAL_UNLOCK(hadc);
    
    /* Return function status */
    return tmp_hal_status;
  }
  
      
  /**
    * @brief  Initializes the ADC MSP.
    * @param  hadc ADC handle
    * @retval None
    */
  __weak void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
  {
    /* Prevent unused argument(s) compilation warning */
    UNUSED(hadc);
  
    /* NOTE : This function should not be modified. When the callback is needed,
              function HAL_ADC_MspInit must be implemented in the user file.
     */ 
  }
  
  /**
    * @brief  DeInitializes the ADC MSP.
    * @param  hadc ADC handle
    * @retval None
    */
  __weak void HAL_ADC_MspDeInit(ADC_HandleTypeDef* hadc)
  {
    /* Prevent unused argument(s) compilation warning */
    UNUSED(hadc);
  
    /* NOTE : This function should not be modified. When the callback is needed,
              function HAL_ADC_MspDeInit must be implemented in the user file.
     */ 
  }
  
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
  /**
    * @brief  Register a User ADC Callback
    *         To be used instead of the weak predefined callback
    * @param  hadc Pointer to a ADC_HandleTypeDef structure that contains
    *                the configuration information for the specified ADC.
    * @param  CallbackID ID of the callback to be registered
    *         This parameter can be one of the following values:
    *          @arg @ref HAL_ADC_CONVERSION_COMPLETE_CB_ID      ADC conversion complete callback ID
    *          @arg @ref HAL_ADC_CONVERSION_HALF_CB_ID          ADC conversion complete callback ID
    *          @arg @ref HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID    ADC analog watchdog 1 callback ID
    *          @arg @ref HAL_ADC_ERROR_CB_ID                    ADC error callback ID
    *          @arg @ref HAL_ADC_INJ_CONVERSION_COMPLETE_CB_ID  ADC group injected conversion complete callback ID
    *          @arg @ref HAL_ADC_MSPINIT_CB_ID                  ADC Msp Init callback ID
    *          @arg @ref HAL_ADC_MSPDEINIT_CB_ID                ADC Msp DeInit callback ID
    *          @arg @ref HAL_ADC_MSPINIT_CB_ID MspInit callback ID
    *          @arg @ref HAL_ADC_MSPDEINIT_CB_ID MspDeInit callback ID
    * @param  pCallback pointer to the Callback function
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_RegisterCallback(ADC_HandleTypeDef *hadc, HAL_ADC_CallbackIDTypeDef CallbackID, pADC_CallbackTypeDef pCallback)
  {
    HAL_StatusTypeDef status = HAL_OK;
    
    if (pCallback == NULL)
    {
      /* Update the error code */
      hadc->ErrorCode |= HAL_ADC_ERROR_INVALID_CALLBACK;
  
      return HAL_ERROR;
    }
    
    if ((hadc->State & HAL_ADC_STATE_READY) != 0)
    {
      switch (CallbackID)
      {
        case HAL_ADC_CONVERSION_COMPLETE_CB_ID :
          hadc->ConvCpltCallback = pCallback;
          break;
        
        case HAL_ADC_CONVERSION_HALF_CB_ID :
          hadc->ConvHalfCpltCallback = pCallback;
          break;
        
        case HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID :
          hadc->LevelOutOfWindowCallback = pCallback;
          break;
        
        case HAL_ADC_ERROR_CB_ID :
          hadc->ErrorCallback = pCallback;
          break;
        
        case HAL_ADC_MSPINIT_CB_ID :
          hadc->MspInitCallback = pCallback;
          break;
        
        case HAL_ADC_MSPDEINIT_CB_ID :
          hadc->MspDeInitCallback = pCallback;
          break;
        
        default :
          /* Update the error code */
          hadc->ErrorCode |= HAL_ADC_ERROR_INVALID_CALLBACK;
  
          /* Return error status */
          status = HAL_ERROR;
          break;
      }
    }
    else if (HAL_ADC_STATE_RESET == hadc->State)
    {
      switch (CallbackID)
      {
        case HAL_ADC_MSPINIT_CB_ID :
          hadc->MspInitCallback = pCallback;
          break;
        
        case HAL_ADC_MSPDEINIT_CB_ID :
          hadc->MspDeInitCallback = pCallback;
          break;
        
        default :
          /* Update the error code */
          hadc->ErrorCode |= HAL_ADC_ERROR_INVALID_CALLBACK;
        
          /* Return error status */
          status = HAL_ERROR;
          break;
      }
    }
    else
    {
      /* Update the error code */
      hadc->ErrorCode |= HAL_ADC_ERROR_INVALID_CALLBACK;
      
      /* Return error status */
      status =  HAL_ERROR;
    }
    
    return status;
  }
  
  /**
    * @brief  Unregister a ADC Callback
    *         ADC callback is redirected to the weak predefined callback
    * @param  hadc Pointer to a ADC_HandleTypeDef structure that contains
    *                the configuration information for the specified ADC.
    * @param  CallbackID ID of the callback to be unregistered
    *         This parameter can be one of the following values:
    *          @arg @ref HAL_ADC_CONVERSION_COMPLETE_CB_ID      ADC conversion complete callback ID
    *          @arg @ref HAL_ADC_CONVERSION_HALF_CB_ID          ADC conversion complete callback ID
    *          @arg @ref HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID    ADC analog watchdog 1 callback ID
    *          @arg @ref HAL_ADC_ERROR_CB_ID                    ADC error callback ID
    *          @arg @ref HAL_ADC_INJ_CONVERSION_COMPLETE_CB_ID  ADC group injected conversion complete callback ID
    *          @arg @ref HAL_ADC_MSPINIT_CB_ID                  ADC Msp Init callback ID
    *          @arg @ref HAL_ADC_MSPDEINIT_CB_ID                ADC Msp DeInit callback ID
    *          @arg @ref HAL_ADC_MSPINIT_CB_ID MspInit callback ID
    *          @arg @ref HAL_ADC_MSPDEINIT_CB_ID MspDeInit callback ID
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_UnRegisterCallback(ADC_HandleTypeDef *hadc, HAL_ADC_CallbackIDTypeDef CallbackID)
  {
    HAL_StatusTypeDef status = HAL_OK;
    
    if ((hadc->State & HAL_ADC_STATE_READY) != 0)
    {
      switch (CallbackID)
      {
        case HAL_ADC_CONVERSION_COMPLETE_CB_ID :
          hadc->ConvCpltCallback = HAL_ADC_ConvCpltCallback;
          break;
        
        case HAL_ADC_CONVERSION_HALF_CB_ID :
          hadc->ConvHalfCpltCallback = HAL_ADC_ConvHalfCpltCallback;
          break;
        
        case HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID :
          hadc->LevelOutOfWindowCallback = HAL_ADC_LevelOutOfWindowCallback;
          break;
        
        case HAL_ADC_ERROR_CB_ID :
          hadc->ErrorCallback = HAL_ADC_ErrorCallback;
          break;
        
        case HAL_ADC_MSPINIT_CB_ID :
          hadc->MspInitCallback = HAL_ADC_MspInit; /* Legacy weak MspInit              */
          break;
        
        case HAL_ADC_MSPDEINIT_CB_ID :
          hadc->MspDeInitCallback = HAL_ADC_MspDeInit; /* Legacy weak MspDeInit            */
          break;
        
        default :
          /* Update the error code */
          hadc->ErrorCode |= HAL_ADC_ERROR_INVALID_CALLBACK;
          
          /* Return error status */
          status =  HAL_ERROR;
          break;
      }
    }
    else if (HAL_ADC_STATE_RESET == hadc->State)
    {
      switch (CallbackID)
      {
        case HAL_ADC_MSPINIT_CB_ID :
          hadc->MspInitCallback = HAL_ADC_MspInit;                   /* Legacy weak MspInit              */
          break;
          
        case HAL_ADC_MSPDEINIT_CB_ID :
          hadc->MspDeInitCallback = HAL_ADC_MspDeInit;               /* Legacy weak MspDeInit            */
          break;
          
        default :
          /* Update the error code */
          hadc->ErrorCode |= HAL_ADC_ERROR_INVALID_CALLBACK;
          
          /* Return error status */
          status =  HAL_ERROR;
          break;
      }
    }
    else
    {
      /* Update the error code */
      hadc->ErrorCode |= HAL_ADC_ERROR_INVALID_CALLBACK;
      
      /* Return error status */
      status =  HAL_ERROR;
    }
    
    return status;
  }
  
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
  
  /**
    * @}
    */
  
  /** @defgroup ADC_Exported_Functions_Group2 IO operation functions
   *  @brief    IO operation functions 
   *
  @verbatim   
   ===============================================================================
                        ##### IO operation functions #####
   ===============================================================================  
      [..]  This section provides functions allowing to:
        (+) Start conversion of regular group.
        (+) Stop conversion of regular group.
        (+) Poll for conversion complete on regular group.
        (+) Poll for conversion event.
        (+) Get result of regular channel conversion.
        (+) Start conversion of regular group and enable interruptions.
        (+) Stop conversion of regular group and disable interruptions.
        (+) Handle ADC interrupt request
        (+) Start conversion of regular group and enable DMA transfer.
        (+) Stop conversion of regular group and disable ADC DMA transfer.
  @endverbatim
    * @{
    */
  
  /**
    * @brief  Enables ADC, starts conversion of regular group.
    *         Interruptions enabled in this function: None.
    * @param  hadc ADC handle
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_Start(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
  
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
  
    /* Perform ADC enable and conversion start if no conversion is on going */
    if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
    {
      /* Process locked */
      __HAL_LOCK(hadc);
        
      /* Enable the ADC peripheral */
      /* If low power mode AutoPowerOff is enabled, power-on/off phases are     */
      /* performed automatically by hardware.                                   */
      if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
      {
        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 regular group conversion results   */
        /* - Set state bitfield related to regular operation                    */
        ADC_STATE_CLR_SET(hadc->State,
                          HAL_ADC_STATE_READY | HAL_ADC_STATE_REG_EOC | HAL_ADC_STATE_REG_OVR | HAL_ADC_STATE_REG_EOSMP,
                          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 regular group conversion flag and overrun flag */
        /* (To ensure of no unknown state from potential previous ADC           */
        /* operations)                                                          */
        __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS | ADC_FLAG_OVR));
        
        /* Enable conversion of regular group.                                  */
        /* If software start has been selected, conversion starts immediately.  */
        /* If external trigger has been selected, conversion will start at next */
        /* trigger event.                                                       */
        hadc->Instance->CR |= ADC_CR_ADSTART;
      }
    }
    else
    {
      tmp_hal_status = HAL_BUSY;
    }
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Stop ADC conversion of regular group, disable ADC peripheral.
    * @param  hadc ADC handle
    * @retval HAL status.
    */
  HAL_StatusTypeDef HAL_ADC_Stop(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);
    
    /* 1. Stop potential conversion on going, on regular group */
    tmp_hal_status = ADC_ConversionStop(hadc);
    
    /* Disable ADC peripheral if conversions are effectively stopped */
    if (tmp_hal_status == HAL_OK)
    {
      /* 2. Disable the ADC peripheral */
      tmp_hal_status = ADC_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_READY);
      }
    }
  
    /* Process unlocked */
    __HAL_UNLOCK(hadc);
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Wait for regular group conversion to be completed.
    * @note   ADC conversion flags EOS (end of sequence) and EOC (end of
    *         conversion) are cleared by this function, with an exception:
    *         if low power feature "LowPowerAutoWait" is enabled, flags are 
    *         not cleared to not interfere with this feature until data register
    *         is read using function HAL_ADC_GetValue().
    * @note   This function cannot be used in a particular setup: ADC configured 
    *         in DMA mode and polling for end of each conversion (ADC init
    *         parameter "EOCSelection" set to ADC_EOC_SINGLE_CONV).
    *         In this case, DMA resets the flag EOC and polling cannot be
    *         performed on each conversion. Nevertheless, polling can still 
    *         be performed on the complete sequence (ADC init
    *         parameter "EOCSelection" set to ADC_EOC_SEQ_CONV).
    * @param  hadc ADC handle
    * @param  Timeout Timeout value in millisecond.
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_PollForConversion(ADC_HandleTypeDef* hadc, uint32_t Timeout)
  {
    uint32_t tickstart;
    uint32_t tmp_Flag_EOC;
   
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
  
    /* If end of conversion selected to end of sequence */
    if (hadc->Init.EOCSelection == ADC_EOC_SEQ_CONV)
    {
      tmp_Flag_EOC = ADC_FLAG_EOS;
    }
    /* If end of conversion selected to end of each conversion */
    else /* ADC_EOC_SINGLE_CONV */
    {
      /* Verification that ADC configuration is compliant with polling for      */
      /* each conversion:                                                       */
      /* Particular case is ADC configured in DMA mode and ADC sequencer with   */
      /* several ranks and polling for end of each conversion.                  */
      /* For code simplicity sake, this particular case is generalized to       */
      /* ADC configured in DMA mode and and polling for end of each conversion. */
      if (HAL_IS_BIT_SET(hadc->Instance->CFGR1, ADC_CFGR1_DMAEN))
      {
        /* Update ADC state machine to error */
        SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
        
        /* Process unlocked */
        __HAL_UNLOCK(hadc);
        
        return HAL_ERROR;
      }
      else
      {
        tmp_Flag_EOC = (ADC_FLAG_EOC | ADC_FLAG_EOS);
      }
    }
    
    /* Get tick count */
    tickstart = HAL_GetTick();
    
    /* Wait until End of Conversion flag is raised */
    while(HAL_IS_BIT_CLR(hadc->Instance->ISR, tmp_Flag_EOC))
    {
      /* Check if timeout is disabled (set to infinite wait) */
      if(Timeout != HAL_MAX_DELAY)
      {
        if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout))
        {
          /* New check to avoid false timeout detection in case of preemption */
          if(HAL_IS_BIT_CLR(hadc->Instance->ISR, tmp_Flag_EOC))
          {
            /* Update ADC state machine to timeout */
            SET_BIT(hadc->State, HAL_ADC_STATE_TIMEOUT);
  
            /* Process unlocked */
            __HAL_UNLOCK(hadc);
  
            return HAL_TIMEOUT;
          }
        }
      }
    }
      
    /* Update ADC state machine */
    SET_BIT(hadc->State, HAL_ADC_STATE_REG_EOC);
    
    /* Determine whether any further conversion upcoming on group regular       */
    /* by external trigger, continuous mode or scan sequence on going.          */
    if(ADC_IS_SOFTWARE_START_REGULAR(hadc)        && 
       (hadc->Init.ContinuousConvMode == DISABLE)   )
    {
      /* If End of Sequence is reached, disable interrupts */
      if( __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) )
      {
        /* Allowed to modify bits ADC_IT_EOC/ADC_IT_EOS only if bit             */
        /* ADSTART==0 (no conversion on going)                                  */
        if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
        {
          /* Disable ADC end of single conversion interrupt on group regular */
          /* Note: Overrun interrupt was enabled with EOC interrupt in          */
          /* HAL_Start_IT(), but is not disabled here because can be used       */
          /* by overrun IRQ process below.                                      */
          __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC | ADC_IT_EOS);
          
          /* Set ADC state */
          ADC_STATE_CLR_SET(hadc->State,
                            HAL_ADC_STATE_REG_BUSY,
                            HAL_ADC_STATE_READY);
        }
        else
        {
          /* Change ADC state to error state */
          SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
          
          /* Set ADC error code to ADC IP internal error */
          SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
        }
      }
    }
    
    /* Clear end of conversion flag of regular group if low power feature       */
    /* "LowPowerAutoWait " is disabled, to not interfere with this feature      */
    /* until data register is read using function HAL_ADC_GetValue().           */
    if (hadc->Init.LowPowerAutoWait == DISABLE)
    {
      /* Clear regular group conversion flag */
      __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS));
    }
    
    /* Return ADC state */
    return HAL_OK;
  }
  
  /**
    * @brief  Poll for conversion event.
    * @param  hadc ADC handle
    * @param  EventType the ADC event type.
    *          This parameter can be one of the following values:
    *            @arg ADC_AWD_EVENT: ADC Analog watchdog event
    *            @arg ADC_OVR_EVENT: ADC Overrun event
    * @param  Timeout Timeout value in millisecond.
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_PollForEvent(ADC_HandleTypeDef* hadc, uint32_t EventType, uint32_t Timeout)
  {
    uint32_t tickstart=0; 
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    assert_param(IS_ADC_EVENT_TYPE(EventType));
    
    /* Get tick count */
    tickstart = HAL_GetTick();   
        
    /* Check selected event flag */
    while(__HAL_ADC_GET_FLAG(hadc, EventType) == RESET)
    {
      /* Check if timeout is disabled (set to infinite wait) */
      if(Timeout != HAL_MAX_DELAY)
      {
        if((Timeout == 0U) || ((HAL_GetTick()-tickstart) > Timeout))
        {
          /* New check to avoid false timeout detection in case of preemption */
          if(__HAL_ADC_GET_FLAG(hadc, EventType) == RESET)
          {
            /* Update ADC state machine to timeout */
            SET_BIT(hadc->State, HAL_ADC_STATE_TIMEOUT);
  
            /* Process unlocked */
            __HAL_UNLOCK(hadc);
  
            return HAL_TIMEOUT;
          }
        }
      }
    }
  
    switch(EventType)
    {
    /* Analog watchdog (level out of window) event */
    case ADC_AWD_EVENT:
      /* Set ADC state */
      SET_BIT(hadc->State, HAL_ADC_STATE_AWD1);
        
      /* Clear ADC analog watchdog flag */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD);
      break;
    
    /* Overrun event */
    default: /* Case ADC_OVR_EVENT */
      /* If overrun is set to overwrite previous data, overrun event is not     */
      /* considered as an error.                                                */
      /* (cf ref manual "Managing conversions without using the DMA and without */
      /* overrun ")                                                             */
      if (hadc->Init.Overrun == ADC_OVR_DATA_PRESERVED)
      {
        /* Set ADC state */
        SET_BIT(hadc->State, HAL_ADC_STATE_REG_OVR);
          
        /* Set ADC error code to overrun */
        SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_OVR);
      }
      
      /* Clear ADC Overrun flag */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR);
      break;
    }
    
    /* Return ADC state */
    return HAL_OK;
  }
  
  /**
    * @brief  Enables ADC, starts conversion of regular group with interruption.
    *         Interruptions enabled in this function:
    *          - EOC (end of conversion of regular group) or EOS (end of 
    *            sequence of regular group) depending on ADC initialization 
    *            parameter "EOCSelection"
    *          - overrun (if available)
    *         Each of these interruptions has its dedicated callback function.
    * @param  hadc ADC handle
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_Start_IT(ADC_HandleTypeDef* hadc)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
      
    /* Perform ADC enable and conversion start if no conversion is on going */
    if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
    {
      /* Process locked */
      __HAL_LOCK(hadc);
       
      /* Enable the ADC peripheral */
      /* If low power mode AutoPowerOff is enabled, power-on/off phases are     */
      /* performed automatically by hardware.                                   */
      if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
      {
        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 regular group conversion results   */
        /* - Set state bitfield related to regular operation                    */
        ADC_STATE_CLR_SET(hadc->State,
                          HAL_ADC_STATE_READY | HAL_ADC_STATE_REG_EOC | HAL_ADC_STATE_REG_OVR | HAL_ADC_STATE_REG_EOSMP,
                          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 regular group conversion flag and overrun flag */
        /* (To ensure of no unknown state from potential previous ADC           */
        /* operations)                                                          */
        __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS | ADC_FLAG_OVR));
        
        /* Enable ADC end of conversion interrupt */
        /* Enable ADC overrun interrupt */  
        switch(hadc->Init.EOCSelection)
        {
          case ADC_EOC_SEQ_CONV: 
            __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC);
            __HAL_ADC_ENABLE_IT(hadc, (ADC_IT_EOS | ADC_IT_OVR));
            break;
          /* case ADC_EOC_SINGLE_CONV */
          default:
            __HAL_ADC_ENABLE_IT(hadc, (ADC_IT_EOC | ADC_IT_EOS | ADC_IT_OVR));
            break;
        }
        
        /* Enable conversion of regular group.                                  */
        /* If software start has been selected, conversion starts immediately.  */
        /* If external trigger has been selected, conversion will start at next */
        /* trigger event.                                                       */
        hadc->Instance->CR |= ADC_CR_ADSTART;
      }
    }
    else
    {
      tmp_hal_status = HAL_BUSY;
    }    
      
    /* Return function status */
    return tmp_hal_status;
  }
  
  
  /**
    * @brief  Stop ADC conversion of regular group, disable interruption of 
    *         end-of-conversion, disable ADC peripheral.
    * @param  hadc ADC handle
    * @retval HAL status.
    */
  HAL_StatusTypeDef HAL_ADC_Stop_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);
    
    /* 1. Stop potential conversion on going, on regular group */
    tmp_hal_status = ADC_ConversionStop(hadc);
     
    /* Disable ADC peripheral if conversions are effectively stopped */
    if (tmp_hal_status == HAL_OK)
    {
      /* Disable ADC end of conversion interrupt for regular group */
      /* Disable ADC overrun interrupt */
      __HAL_ADC_DISABLE_IT(hadc, (ADC_IT_EOC | ADC_IT_EOS | ADC_IT_OVR));
      
      /* 2. Disable the ADC peripheral */
      tmp_hal_status = ADC_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_READY);
      }
    }
  
    /* Process unlocked */
    __HAL_UNLOCK(hadc);
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Enables ADC, starts conversion of regular group and transfers result
    *         through DMA.
    *         Interruptions enabled in this function:
    *          - DMA transfer complete
    *          - DMA half transfer
    *          - overrun
    *         Each of these interruptions has its dedicated callback function.
    * @param  hadc ADC handle
    * @param  pData The destination Buffer address.
    * @param  Length The length of data to be transferred from ADC peripheral to memory.
    * @retval None
    */
  HAL_StatusTypeDef HAL_ADC_Start_DMA(ADC_HandleTypeDef* hadc, uint32_t* pData, uint32_t Length)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
  
    /* Perform ADC enable and conversion start if no conversion is on going */
    if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
    {
      /* Process locked */
      __HAL_LOCK(hadc);
  
      /* Enable the ADC peripheral */
      /* If low power mode AutoPowerOff is enabled, power-on/off phases are       */
      /* performed automatically by hardware.                                     */
      if (hadc->Init.LowPowerAutoPowerOff != ENABLE)
      {
        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 regular group conversion results   */
        /* - Set state bitfield related to regular operation                    */
        ADC_STATE_CLR_SET(hadc->State,
                          HAL_ADC_STATE_READY | HAL_ADC_STATE_REG_EOC | HAL_ADC_STATE_REG_OVR | HAL_ADC_STATE_REG_EOSMP,
                          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);
  
        /* Set the DMA transfer complete callback */
        hadc->DMA_Handle->XferCpltCallback = ADC_DMAConvCplt;
  
        /* Set the DMA half transfer complete callback */
        hadc->DMA_Handle->XferHalfCpltCallback = ADC_DMAHalfConvCplt;
        
        /* Set the DMA error callback */
        hadc->DMA_Handle->XferErrorCallback = ADC_DMAError;
  
        
        /* Manage ADC and DMA start: ADC overrun interruption, DMA start, ADC   */
        /* start (in case of SW start):                                         */
        
        /* Clear regular group conversion flag and overrun flag */
        /* (To ensure of no unknown state from potential previous ADC           */
        /* operations)                                                          */
        __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS | ADC_FLAG_OVR));
        
        /* Enable ADC overrun interrupt */
        __HAL_ADC_ENABLE_IT(hadc, ADC_IT_OVR);
        
        /* Enable ADC DMA mode */
        hadc->Instance->CFGR1 |= ADC_CFGR1_DMAEN;
        
        /* Start the DMA channel */
        HAL_DMA_Start_IT(hadc->DMA_Handle, (uint32_t)&hadc->Instance->DR, (uint32_t)pData, Length);
             
        /* Enable conversion of regular group.                                  */
        /* If software start has been selected, conversion starts immediately.  */
        /* If external trigger has been selected, conversion will start at next */
        /* trigger event.                                                       */
        hadc->Instance->CR |= ADC_CR_ADSTART;
      }
    }
    else
    {
      tmp_hal_status = HAL_BUSY;
    }
      
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Stop ADC conversion of regular group, disable ADC DMA transfer, disable 
    *         ADC peripheral.
    *         Each of these interruptions has its dedicated callback function.
    * @param  hadc ADC handle
    * @retval HAL status.
    */
  HAL_StatusTypeDef HAL_ADC_Stop_DMA(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);
    
    /* 1. Stop potential conversion on going, on regular group */
    tmp_hal_status = ADC_ConversionStop(hadc);
    
    /* Disable ADC peripheral if conversions are effectively stopped */
    if (tmp_hal_status == HAL_OK)
    {
      /* Disable ADC DMA (ADC DMA configuration ADC_CFGR_DMACFG is kept) */
      hadc->Instance->CFGR1 &= ~ADC_CFGR1_DMAEN;
      
      /* Disable the DMA channel (in case of DMA in circular mode or stop while */
      /* while DMA transfer is on going)                                        */
      if (hadc->DMA_Handle->State == HAL_DMA_STATE_BUSY)
      {
        tmp_hal_status = HAL_DMA_Abort(hadc->DMA_Handle);
  
        /* Check if DMA channel effectively disabled */
        if (tmp_hal_status != HAL_OK)
        {
          /* Update ADC state machine to error */
          SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_DMA);
        }
      }
      
      /* Disable ADC overrun interrupt */
      __HAL_ADC_DISABLE_IT(hadc, ADC_IT_OVR);
      
      /* 2. Disable the ADC peripheral */
      /* Update "tmp_hal_status" only if DMA channel disabling passed, to keep  */
      /* in memory a potential failing status.                                  */
      if (tmp_hal_status == HAL_OK)
      {
        tmp_hal_status = ADC_Disable(hadc);
      }
      else
      {
        ADC_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_READY);
      }
      
    }
  
    /* Process unlocked */
    __HAL_UNLOCK(hadc);
    
    /* Return function status */
    return tmp_hal_status;
  }
  
  /**
    * @brief  Get ADC regular group conversion result.
    * @note   Reading register DR automatically clears ADC flag EOC
    *         (ADC group regular end of unitary conversion).
    * @note   This function does not clear ADC flag EOS 
    *         (ADC group regular end of sequence conversion).
    *         Occurrence of flag EOS rising:
    *          - If sequencer is composed of 1 rank, flag EOS is equivalent
    *            to flag EOC.
    *          - If sequencer is composed of several ranks, during the scan
    *            sequence flag EOC only is raised, at the end of the scan sequence
    *            both flags EOC and EOS are raised.
    *         To clear this flag, either use function: 
    *         in programming model IT: @ref HAL_ADC_IRQHandler(), in programming
    *         model polling: @ref HAL_ADC_PollForConversion() 
    *         or @ref __HAL_ADC_CLEAR_FLAG(&hadc, ADC_FLAG_EOS).
    * @param  hadc ADC handle
    * @retval ADC group regular conversion data
    */
  uint32_t HAL_ADC_GetValue(ADC_HandleTypeDef* hadc)
  {
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
  
    /* Note: EOC flag is not cleared here by software because automatically     */
    /*       cleared by hardware when reading register DR.                      */
    
    /* Return ADC converted value */ 
    return hadc->Instance->DR;
  }
  
  /**
    * @brief  Handles ADC interrupt request.  
    * @param  hadc ADC handle
    * @retval None
    */
  void HAL_ADC_IRQHandler(ADC_HandleTypeDef* hadc)
  {
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    assert_param(IS_FUNCTIONAL_STATE(hadc->Init.ContinuousConvMode));
    assert_param(IS_ADC_EOC_SELECTION(hadc->Init.EOCSelection));
    
    /* ========== Check End of Conversion flag for regular group ========== */
    if( (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOC) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_EOC)) || 
        (__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_EOS))   )
    {
      /* Update state machine on conversion status if not in error state */
      if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL))
      {
        /* Set ADC state */
        SET_BIT(hadc->State, HAL_ADC_STATE_REG_EOC); 
      }
      
      /* Determine whether any further conversion upcoming on group regular     */
      /* by external trigger, continuous mode or scan sequence on going.        */
      if(ADC_IS_SOFTWARE_START_REGULAR(hadc)        && 
         (hadc->Init.ContinuousConvMode == DISABLE)   )
      {
        /* If End of Sequence is reached, disable interrupts */
        if( __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) )
        {
          /* Allowed to modify bits ADC_IT_EOC/ADC_IT_EOS only if bit           */
          /* ADSTART==0 (no conversion on going)                                */
          if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
          {
            /* Disable ADC end of single conversion interrupt on group regular */
            /* Note: Overrun interrupt was enabled with EOC interrupt in        */
            /* HAL_Start_IT(), but is not disabled here because can be used     */
            /* by overrun IRQ process below.                                    */
            __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC | ADC_IT_EOS);
            
            /* Set ADC state */
            ADC_STATE_CLR_SET(hadc->State,
                              HAL_ADC_STATE_REG_BUSY,
                              HAL_ADC_STATE_READY);
          }
          else
          {
            /* Change ADC state to error state */
            SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
            
            /* Set ADC error code to ADC IP internal error */
            SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
          }
        }
      }
      
      /* Note: into callback, to determine if conversion has been triggered     */
      /*       from EOC or EOS, possibility to use:                             */
      /*        " if( __HAL_ADC_GET_FLAG(&hadc, ADC_FLAG_EOS)) "                */
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
        hadc->ConvCpltCallback(hadc);
  #else
      HAL_ADC_ConvCpltCallback(hadc);
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
  
      
      /* Clear regular group conversion flag */
      /* Note: in case of overrun set to ADC_OVR_DATA_PRESERVED, end of         */
      /*       conversion flags clear induces the release of the preserved data.*/
      /*       Therefore, if the preserved data value is needed, it must be     */
      /*       read preliminarily into HAL_ADC_ConvCpltCallback().              */
      __HAL_ADC_CLEAR_FLAG(hadc, (ADC_FLAG_EOC | ADC_FLAG_EOS) );
    }
     
    /* ========== Check Analog watchdog flags ========== */
    if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_AWD) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_AWD))
    {
        /* Set ADC state */
        SET_BIT(hadc->State, HAL_ADC_STATE_AWD1);
  
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
        hadc->LevelOutOfWindowCallback(hadc);
  #else
      HAL_ADC_LevelOutOfWindowCallback(hadc);
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
      
      /* Clear ADC Analog watchdog flag */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_AWD);
     
    }
    
    
    /* ========== Check Overrun flag ========== */
    if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_OVR) && __HAL_ADC_GET_IT_SOURCE(hadc, ADC_IT_OVR))
    {
      /* If overrun is set to overwrite previous data (default setting),        */
      /* overrun event is not considered as an error.                           */
      /* (cf ref manual "Managing conversions without using the DMA and without */
      /* overrun ")                                                             */
      /* Exception for usage with DMA overrun event always considered as an     */
      /* error.                                                                 */
      if ((hadc->Init.Overrun == ADC_OVR_DATA_PRESERVED)            ||
          HAL_IS_BIT_SET(hadc->Instance->CFGR1, ADC_CFGR1_DMAEN)  )
      {
        /* Set ADC error code to overrun */
        SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_OVR);
        
        /* Clear ADC overrun flag */
        __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR);
        
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
        hadc->ErrorCallback(hadc);
  #else
        HAL_ADC_ErrorCallback(hadc);
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
      }
      
      /* Clear the Overrun flag */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_FLAG_OVR);
    }
  
  }
  
  
  /**
    * @brief  Conversion complete callback in non blocking mode 
    * @param  hadc ADC handle
    * @retval None
    */
  __weak void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* hadc)
  {
    /* Prevent unused argument(s) compilation warning */
    UNUSED(hadc);
  
    /* NOTE : This function should not be modified. When the callback is needed,
              function HAL_ADC_ConvCpltCallback must be implemented in the user file.
     */
  }
  
  /**
    * @brief  Conversion DMA half-transfer callback in non blocking mode 
    * @param  hadc ADC handle
    * @retval None
    */
  __weak void HAL_ADC_ConvHalfCpltCallback(ADC_HandleTypeDef* hadc)
  {
    /* Prevent unused argument(s) compilation warning */
    UNUSED(hadc);
  
    /* NOTE : This function should not be modified. When the callback is needed,
              function HAL_ADC_ConvHalfCpltCallback must be implemented in the user file.
    */
  }
  
  /**
    * @brief  Analog watchdog callback in non blocking mode. 
    * @param  hadc ADC handle
    * @retval None
    */
  __weak void HAL_ADC_LevelOutOfWindowCallback(ADC_HandleTypeDef* hadc)
  {
    /* Prevent unused argument(s) compilation warning */
    UNUSED(hadc);
  
    /* NOTE : This function should not be modified. When the callback is needed,
              function HAL_ADC_LevelOoutOfWindowCallback must be implemented in the user file.
    */
  }
  
  /**
    * @brief  ADC error callback in non blocking mode
    *        (ADC conversion with interruption or transfer by DMA)
    * @param  hadc ADC handle
    * @retval None
    */
  __weak void HAL_ADC_ErrorCallback(ADC_HandleTypeDef *hadc)
  {
    /* Prevent unused argument(s) compilation warning */
    UNUSED(hadc);
  
    /* NOTE : This function should not be modified. When the callback is needed,
              function HAL_ADC_ErrorCallback must be implemented in the user file.
    */
  }
  
  
  /**
    * @}
    */
  
  /** @defgroup ADC_Exported_Functions_Group3 Peripheral Control functions
   *  @brief    Peripheral Control functions 
   *
  @verbatim   
   ===============================================================================
               ##### Peripheral Control functions #####
   ===============================================================================  
      [..]  This section provides functions allowing to:
        (+) Configure channels on regular group
        (+) Configure the analog watchdog
        
  @endverbatim
    * @{
    */
  
  /**
    * @brief  Configures the the selected channel to be linked to the regular
    *         group.
    * @note   In case of usage of internal measurement channels:
    *         VrefInt/Vbat/TempSensor.
    *         Sampling time constraints must be respected (sampling time can be 
    *         adjusted in function of ADC clock frequency and sampling time 
    *         setting).
    *         Refer to device datasheet for timings values, parameters TS_vrefint,
    *         TS_vbat, TS_temp (values rough order: 5us to 17us).
    *         These internal paths can be be disabled using function 
    *         HAL_ADC_DeInit().
    * @note   Possibility to update parameters on the fly:
    *         This function initializes channel into regular group, following  
    *         calls to this function can be used to reconfigure some parameters 
    *         of structure "ADC_ChannelConfTypeDef" on the fly, without reseting 
    *         the ADC.
    *         The setting of these parameters is conditioned to ADC state.
    *         For parameters constraints, see comments of structure 
    *         "ADC_ChannelConfTypeDef".
    * @param  hadc ADC handle
    * @param  sConfig Structure of ADC channel for regular group.
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_ConfigChannel(ADC_HandleTypeDef* hadc, ADC_ChannelConfTypeDef* sConfig)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    __IO uint32_t wait_loop_index = 0U;
  
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    assert_param(IS_ADC_CHANNEL(sConfig->Channel));
    assert_param(IS_ADC_RANK(sConfig->Rank));
    
    if (! IS_ADC_SAMPLE_TIME(hadc->Init.SamplingTimeCommon))
    {
      assert_param(IS_ADC_SAMPLE_TIME(sConfig->SamplingTime));
    }
    
    /* Process locked */
    __HAL_LOCK(hadc);
    
    /* Parameters update conditioned to ADC state:                              */
    /* Parameters that can be updated when ADC is disabled or enabled without   */
    /* conversion on going on regular group:                                    */
    /*  - Channel number                                                        */
    /*  - Channel sampling time                                                 */
    /*  - Management of internal measurement channels: VrefInt/TempSensor/Vbat  */
    if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
    {
      /* Configure channel: depending on rank setting, add it or remove it from */
      /* ADC conversion sequencer.                                              */
      if (sConfig->Rank != ADC_RANK_NONE)
      {
        /* Regular sequence configuration */
        /* Set the channel selection register from the selected channel */
        hadc->Instance->CHSELR |= ADC_CHSELR_CHANNEL(sConfig->Channel);
        
        /* Channel sampling time configuration */
        /* Management of parameters "SamplingTimeCommon" and "SamplingTime"     */
        /* (obsolete): sampling time set in this function with                  */
        /* parameter "SamplingTime" (obsolete) only if not already set into     */
        /* ADC initialization structure with parameter "SamplingTimeCommon".    */
        if (! IS_ADC_SAMPLE_TIME(hadc->Init.SamplingTimeCommon))
        {
          /* Modify sampling time if needed (not needed in case of reoccurrence */
          /* for several channels programmed consecutively into the sequencer)  */
          if (sConfig->SamplingTime != ADC_GET_SAMPLINGTIME(hadc))
          {
            /* Channel sampling time configuration */
            /* Clear the old sample time */
            hadc->Instance->SMPR &= ~(ADC_SMPR_SMP);
            
            /* Set the new sample time */
            hadc->Instance->SMPR |= ADC_SMPR_SET(sConfig->SamplingTime);
          }
        }
        
        /* Management of internal measurement channels: VrefInt/TempSensor/Vbat */
        /* internal measurement paths enable: If internal channel selected,     */
        /* enable dedicated internal buffers and path.                          */
        /* Note: these internal measurement paths can be disabled using         */
        /*       HAL_ADC_DeInit() or removing the channel from sequencer with   */
        /*       channel configuration parameter "Rank".                        */
        if(ADC_IS_CHANNEL_INTERNAL(sConfig->Channel))
        {
          /* If Channel_16 is selected, enable Temp. sensor measurement path. */
          /* If Channel_17 is selected, enable VREFINT measurement path. */
          /* If Channel_18 is selected, enable VBAT measurement path. */
          ADC->CCR |= ADC_CHANNEL_INTERNAL_PATH(sConfig->Channel);
          
          /* If Temp. sensor is selected, wait for stabilization delay */
          if (sConfig->Channel == 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 / 1000000U));
            while(wait_loop_index != 0U)
            {
              wait_loop_index--;
            }
          }
        }
      }
      else
      {
        /* Regular sequence configuration */
        /* Reset the channel selection register from the selected channel */
        hadc->Instance->CHSELR &= ~ADC_CHSELR_CHANNEL(sConfig->Channel);
        
        /* Management of internal measurement channels: VrefInt/TempSensor/Vbat */
        /* internal measurement paths disable: If internal channel selected,    */
        /* disable dedicated internal buffers and path.                         */
        if(ADC_IS_CHANNEL_INTERNAL(sConfig->Channel))
        {
          /* If Channel_16 is selected, disable Temp. sensor measurement path. */
          /* If Channel_17 is selected, disable VREFINT measurement path. */
          /* If Channel_18 is selected, disable VBAT measurement path. */
          ADC->CCR &= ~ADC_CHANNEL_INTERNAL_PATH(sConfig->Channel);
        }
      }
      
    }
     
    /* If a conversion is on going on regular group, no update on regular       */
    /* channel could be done on neither of the channel configuration structure  */
    /* parameters.                                                              */
    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  Configures the analog watchdog.
    * @note   Possibility to update parameters on the fly:
    *         This function initializes the selected analog watchdog, following  
    *         calls to this function can be used to reconfigure some parameters 
    *         of structure "ADC_AnalogWDGConfTypeDef" on the fly, without reseting 
    *         the ADC.
    *         The setting of these parameters is conditioned to ADC state.
    *         For parameters constraints, see comments of structure 
    *         "ADC_AnalogWDGConfTypeDef".
    * @param  hadc ADC handle
    * @param  AnalogWDGConfig Structure of ADC analog watchdog configuration
    * @retval HAL status
    */
  HAL_StatusTypeDef HAL_ADC_AnalogWDGConfig(ADC_HandleTypeDef* hadc, ADC_AnalogWDGConfTypeDef* AnalogWDGConfig)
  {
    HAL_StatusTypeDef tmp_hal_status = HAL_OK;
    
    uint32_t tmpAWDHighThresholdShifted;
    uint32_t tmpAWDLowThresholdShifted;
    
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    assert_param(IS_ADC_ANALOG_WATCHDOG_MODE(AnalogWDGConfig->WatchdogMode));
    assert_param(IS_FUNCTIONAL_STATE(AnalogWDGConfig->ITMode));
  
    /* Verify if threshold is within the selected ADC resolution */
    assert_param(IS_ADC_RANGE(ADC_GET_RESOLUTION(hadc), AnalogWDGConfig->HighThreshold));
    assert_param(IS_ADC_RANGE(ADC_GET_RESOLUTION(hadc), AnalogWDGConfig->LowThreshold));
  
    if(AnalogWDGConfig->WatchdogMode == ADC_ANALOGWATCHDOG_SINGLE_REG)
    {
      assert_param(IS_ADC_CHANNEL(AnalogWDGConfig->Channel));
    }
    
    /* Process locked */
    __HAL_LOCK(hadc);
    
    /* Parameters update conditioned to ADC state:                              */
    /* Parameters that can be updated when ADC is disabled or enabled without   */
    /* conversion on going on regular group:                                    */
    /*  - Analog watchdog channels                                              */
    /*  - Analog watchdog thresholds                                            */
    if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
    {
      /* Configuration of analog watchdog:                                      */
      /*  - Set the analog watchdog enable mode: one or overall group of        */
      /*    channels.                                                           */
      /*  - Set the Analog watchdog channel (is not used if watchdog            */
      /*    mode "all channels": ADC_CFGR_AWD1SGL=0).                           */
      hadc->Instance->CFGR1 &= ~( ADC_CFGR1_AWDSGL |
                                  ADC_CFGR1_AWDEN  |
                                  ADC_CFGR1_AWDCH   );
      
      hadc->Instance->CFGR1 |= ( AnalogWDGConfig->WatchdogMode            |
                                 ADC_CFGR_AWDCH(AnalogWDGConfig->Channel)  );
  
      /* Shift the offset in function of the selected ADC resolution: Thresholds*/
      /* have to be left-aligned on bit 11, the LSB (right bits) are set to 0   */
      tmpAWDHighThresholdShifted = ADC_AWD1THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->HighThreshold);
      tmpAWDLowThresholdShifted  = ADC_AWD1THRESHOLD_SHIFT_RESOLUTION(hadc, AnalogWDGConfig->LowThreshold);
      
      /* Set the high and low thresholds */
      hadc->Instance->TR &= ~(ADC_TR_HT | ADC_TR_LT);
      hadc->Instance->TR |=  ( ADC_TRX_HIGHTHRESHOLD (tmpAWDHighThresholdShifted) |
                               tmpAWDLowThresholdShifted                           );
      
      /* Clear the ADC Analog watchdog flag (in case of left enabled by         */
      /* previous ADC operations) to be ready to use for HAL_ADC_IRQHandler()   */
      /* or HAL_ADC_PollForEvent().                                             */
      __HAL_ADC_CLEAR_FLAG(hadc, ADC_IT_AWD);
      
      /* Configure ADC Analog watchdog interrupt */
      if(AnalogWDGConfig->ITMode == ENABLE)
      {
        /* Enable the ADC Analog watchdog interrupt */
        __HAL_ADC_ENABLE_IT(hadc, ADC_IT_AWD);
      }
      else
      {
        /* Disable the ADC Analog watchdog interrupt */
        __HAL_ADC_DISABLE_IT(hadc, ADC_IT_AWD);
      }
      
    }
    /* If a conversion is on going on regular group, no update could be done    */
    /* on neither of the AWD configuration structure parameters.                */
    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;
  }
  
  
  /**
    * @}
    */
  
  
  /** @defgroup ADC_Exported_Functions_Group4 Peripheral State functions
   *  @brief    Peripheral State functions
   *
  @verbatim
   ===============================================================================
              ##### Peripheral State and Errors functions #####
   ===============================================================================  
      [..]
      This subsection provides functions to get in run-time the status of the  
      peripheral.
        (+) Check the ADC state
        (+) Check the ADC error code
  
  @endverbatim
    * @{
    */
  
  /**
    * @brief  Return the ADC state
    * @note   ADC state machine is managed by bitfields, ADC status must be 
    *         compared with states bits.
    *         For example:                                                         
    *           " if (HAL_IS_BIT_SET(HAL_ADC_GetState(hadc1), HAL_ADC_STATE_REG_BUSY)) "
    *           " if (HAL_IS_BIT_SET(HAL_ADC_GetState(hadc1), HAL_ADC_STATE_AWD1)    ) "
    * @param  hadc ADC handle
    * @retval HAL state
    */
  uint32_t HAL_ADC_GetState(ADC_HandleTypeDef* hadc)
  {
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
    
    /* Return ADC state */
    return hadc->State;
  }
  
  /**
    * @brief  Return the ADC error code
    * @param  hadc ADC handle
    * @retval ADC Error Code
    */
  uint32_t HAL_ADC_GetError(ADC_HandleTypeDef *hadc)
  {
    return hadc->ErrorCode;
  }
  
  /**
    * @}
    */  
  
  /**
    * @}
    */
  
  /** @defgroup ADC_Private_Functions ADC Private Functions
    * @{
    */
  
  /**
    * @brief  Enable the selected ADC.
    * @note   Prerequisite condition to use this function: ADC must be disabled
    *         and voltage regulator must be enabled (done into HAL_ADC_Init()).
    * @note   If low power mode AutoPowerOff is enabled, power-on/off phases are
    *         performed automatically by hardware.
    *         In this mode, this function is useless and must not be called because 
    *         flag ADC_FLAG_RDY is not usable.
    *         Therefore, this function must be called under condition of
    *         "if (hadc->Init.LowPowerAutoPowerOff != ENABLE)".
    * @param  hadc ADC handle
    * @retval HAL status.
    */
  static HAL_StatusTypeDef ADC_Enable(ADC_HandleTypeDef* hadc)
  {
    uint32_t tickstart = 0U;
    __IO uint32_t wait_loop_index = 0U;
    
    /* ADC enable and wait for ADC ready (in case of ADC is disabled or         */
    /* enabling phase not yet completed: flag ADC ready not yet set).           */
    /* Timeout implemented to not be stuck if ADC cannot be enabled (possible   */
    /* causes: ADC clock not running, ...).                                     */
    if (ADC_IS_ENABLE(hadc) == RESET)
    {
      /* Check if conditions to enable the ADC are fulfilled */
      if (ADC_ENABLING_CONDITIONS(hadc) == RESET)
      {
        /* Update ADC state machine to error */
        SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL);
      
        /* Set ADC error code to ADC IP internal error */
        SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
        
        return HAL_ERROR;
      }
      
      /* Enable the ADC peripheral */
      __HAL_ADC_ENABLE(hadc);
      
      /* Delay for ADC stabilization time */
      /* Compute number of CPU cycles to wait for */
      wait_loop_index = (ADC_STAB_DELAY_US * (SystemCoreClock / 1000000U));
      while(wait_loop_index != 0U)
      {
        wait_loop_index--;
      }
  
      /* Get tick count */
      tickstart = HAL_GetTick();
      
      /* Wait for ADC effectively enabled */
      while(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_RDY) == RESET)
      {
        if((HAL_GetTick() - tickstart) > ADC_ENABLE_TIMEOUT)
        {
          /* New check to avoid false timeout detection in case of preemption */
          if(__HAL_ADC_GET_FLAG(hadc, ADC_FLAG_RDY) == RESET)
          {
            /* Update ADC state machine to error */
            SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL);
  
            /* Set ADC error code to ADC IP internal error */
            SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
  
            return HAL_ERROR;
          }
        }
      }
    }
     
    /* Return HAL status */
    return HAL_OK;
  }
  
  /**
    * @brief  Disable the selected ADC.
    * @note   Prerequisite condition to use this function: ADC conversions must be
    *         stopped.
    * @param  hadc ADC handle
    * @retval HAL status.
    */
  static HAL_StatusTypeDef ADC_Disable(ADC_HandleTypeDef* hadc)
  {
    uint32_t tickstart = 0U;
    
    /* Verification if ADC is not already disabled:                             */
    /* Note: forbidden to disable ADC (set bit ADC_CR_ADDIS) if ADC is already  */
    /*       disabled.                                                          */
    if (ADC_IS_ENABLE(hadc) != RESET)
    {
      /* Check if conditions to disable the ADC are fulfilled */
      if (ADC_DISABLING_CONDITIONS(hadc) != RESET)
      {
        /* Disable the ADC peripheral */
        __HAL_ADC_DISABLE(hadc);
      }
      else
      {
        /* Update ADC state machine to error */
        SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL);
      
        /* Set ADC error code to ADC IP internal error */
        SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
        
        return HAL_ERROR;
      }
       
      /* Wait for ADC effectively disabled */
      /* Get tick count */
      tickstart = HAL_GetTick();
      
      while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADEN))
      {
        if((HAL_GetTick() - tickstart) > ADC_DISABLE_TIMEOUT)
        {
          /* New check to avoid false timeout detection in case of preemption */
          if(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADEN))
          {
            /* Update ADC state machine to error */
            SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL);
  
            /* Set ADC error code to ADC IP internal error */
            SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
  
            return HAL_ERROR;
          }
        }
      }
    }
    
    /* Return HAL status */
    return HAL_OK;
  }
  
  
  /**
    * @brief  Stop ADC conversion.
    * @note   Prerequisite condition to use this function: ADC conversions must be
    *         stopped to disable the ADC.
    * @param  hadc ADC handle
    * @retval HAL status.
    */
  static HAL_StatusTypeDef ADC_ConversionStop(ADC_HandleTypeDef* hadc)
  {
    uint32_t tickstart = 0U;
  
    /* Check the parameters */
    assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
      
    /* Verification if ADC is not already stopped on regular group to bypass    */
    /* this function if not needed.                                             */
    if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc))
    {
      
      /* Stop potential conversion on going on regular group */
      /* Software is allowed to set ADSTP only when ADSTART=1 and ADDIS=0 */
      if (HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADSTART) && 
          HAL_IS_BIT_CLR(hadc->Instance->CR, ADC_CR_ADDIS)                  )
      {
        /* Stop conversions on regular group */
        hadc->Instance->CR |= ADC_CR_ADSTP;
      }
      
      /* Wait for conversion effectively stopped */
      /* Get tick count */
      tickstart = HAL_GetTick();
        
      while((hadc->Instance->CR & ADC_CR_ADSTART) != RESET)
      {
        if((HAL_GetTick() - tickstart) > ADC_STOP_CONVERSION_TIMEOUT)
        {
          /* New check to avoid false timeout detection in case of preemption */
          if((hadc->Instance->CR & ADC_CR_ADSTART) != RESET)
          {
            /* Update ADC state machine to error */
            SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL);
  
            /* Set ADC error code to ADC IP internal error */
            SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
  
            return HAL_ERROR;
          }
        }
      }
    }
     
    /* Return HAL status */
    return HAL_OK;
  }
  
  
  /**
    * @brief  DMA transfer complete callback. 
    * @param  hdma pointer to DMA handle.
    * @retval None
    */
  static void ADC_DMAConvCplt(DMA_HandleTypeDef *hdma)
  {
    /* Retrieve ADC handle corresponding to current DMA handle */
    ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
    
    /* Update state machine on conversion status if not in error state */
    if (HAL_IS_BIT_CLR(hadc->State, HAL_ADC_STATE_ERROR_INTERNAL | HAL_ADC_STATE_ERROR_DMA))
    {
      /* Set ADC state */
      SET_BIT(hadc->State, HAL_ADC_STATE_REG_EOC); 
      
      /* Determine whether any further conversion upcoming on group regular     */
      /* by external trigger, continuous mode or scan sequence on going.        */
      if(ADC_IS_SOFTWARE_START_REGULAR(hadc)        && 
         (hadc->Init.ContinuousConvMode == DISABLE)   )
      {
        /* If End of Sequence is reached, disable interrupts */
        if( __HAL_ADC_GET_FLAG(hadc, ADC_FLAG_EOS) )
        {
          /* Allowed to modify bits ADC_IT_EOC/ADC_IT_EOS only if bit           */
          /* ADSTART==0 (no conversion on going)                                */
          if (ADC_IS_CONVERSION_ONGOING_REGULAR(hadc) == RESET)
          {
            /* Disable ADC end of single conversion interrupt on group regular */
            /* Note: Overrun interrupt was enabled with EOC interrupt in        */
            /* HAL_Start_IT(), but is not disabled here because can be used     */
            /* by overrun IRQ process below.                                    */
            __HAL_ADC_DISABLE_IT(hadc, ADC_IT_EOC | ADC_IT_EOS);
            
            /* Set ADC state */
            ADC_STATE_CLR_SET(hadc->State,
                              HAL_ADC_STATE_REG_BUSY,
                              HAL_ADC_STATE_READY);
          }
          else
          {
            /* Change ADC state to error state */
            SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
            
            /* Set ADC error code to ADC IP internal error */
            SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_INTERNAL);
          }
        }
      }
  
      /* Conversion complete callback */
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
      hadc->ConvCpltCallback(hadc);
  #else
      HAL_ADC_ConvCpltCallback(hadc);
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
    }
    else
    {
      /* Call DMA error callback */
      hadc->DMA_Handle->XferErrorCallback(hdma);
    }
  
  }
  
  /**
    * @brief  DMA half transfer complete callback. 
    * @param  hdma pointer to DMA handle.
    * @retval None
    */
  static void ADC_DMAHalfConvCplt(DMA_HandleTypeDef *hdma)   
  {
    /* Retrieve ADC handle corresponding to current DMA handle */
    ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
    
    /* Half conversion callback */
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
      hadc->ConvHalfCpltCallback(hadc);
  #else
    HAL_ADC_ConvHalfCpltCallback(hadc); 
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
  }
  
  /**
    * @brief  DMA error callback 
    * @param  hdma pointer to DMA handle.
    * @retval None
    */
  static void ADC_DMAError(DMA_HandleTypeDef *hdma)   
  {
    /* Retrieve ADC handle corresponding to current DMA handle */
    ADC_HandleTypeDef* hadc = ( ADC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
    
    /* Set ADC state */
    SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_DMA);
    
    /* Set ADC error code to DMA error */
    SET_BIT(hadc->ErrorCode, HAL_ADC_ERROR_DMA);
    
    /* Error callback */
  #if (USE_HAL_ADC_REGISTER_CALLBACKS == 1)
    hadc->ErrorCallback(hadc);
  #else
    HAL_ADC_ErrorCallback(hadc); 
  #endif /* USE_HAL_ADC_REGISTER_CALLBACKS */
  }
  
  /**
    * @}
    */
  
  #endif /* HAL_ADC_MODULE_ENABLED */
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  