Initialization and de-initialization functions

ADC Initialization and Configuration functions. More...

Functions
HAL_StatusTypeDef	HAL_ADC_Init (ADC_HandleTypeDef *hadc)
	Initialize the ADC peripheral and regular group according to parameters specified in structure "ADC_InitTypeDef".
HAL_StatusTypeDef	HAL_ADC_DeInit (ADC_HandleTypeDef *hadc)
	Deinitialize the ADC peripheral registers to their default reset values, with deinitialization of the ADC MSP.
__weak void	HAL_ADC_MspInit (ADC_HandleTypeDef *hadc)
	Initialize the ADC MSP.
__weak void	HAL_ADC_MspDeInit (ADC_HandleTypeDef *hadc)
	DeInitialize the ADC MSP.
HAL_StatusTypeDef	HAL_ADC_RegisterCallback (ADC_HandleTypeDef *hadc, HAL_ADC_CallbackIDTypeDef CallbackID, pADC_CallbackTypeDef pCallback)
	Register a User ADC Callback To be used instead of the weak predefined callback.
HAL_StatusTypeDef	HAL_ADC_UnRegisterCallback (ADC_HandleTypeDef *hadc, HAL_ADC_CallbackIDTypeDef CallbackID)
	Unregister a ADC Callback ADC callback is redirected to the weak predefined callback.

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Detailed Description

ADC Initialization and Configuration functions.

Initialization and Configuration functions.

 ===============================================================================
              ##### Initialization and de-initialization functions #####
 ===============================================================================
    [..]  This section provides functions allowing to:
      (+) Initialize and configure the ADC. 
      (+) De-initialize the ADC.

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Function Documentation

HAL_StatusTypeDef HAL_ADC_DeInit

(

ADC_HandleTypeDef *

hadc

)

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. (function "HAL_ADC_MspDeInit()" is also called under the same conditions: all ADC instances use the same core clock at RCC level, disabling the core clock reset all ADC instances). If this is not the case, reset of these common parameters reset is bypassed without error reporting: it can be the intended behavior in case of reset of a single ADC while the other ADCs sharing the same common group is still running.

By default, HAL_ADC_DeInit() set ADC in mode deep power-down: this saves more power by reducing leakage currents and is particularly interesting before entering MCU low-power modes.

Parameters:

hadc	ADC handle

Return values:

HAL

status

Definition at line 711 of file stm32l4xx_hal_adc.c.

References __HAL_ADC_CLEAR_FLAG, __HAL_ADC_DISABLE_IT, ADC_ANY_OTHER_ENABLED, ADC_CFGR_FIELDS, ADC_CLEAR_COMMON_CONTROL_REGISTER, ADC_CLEAR_ERRORCODE, ADC_ConversionStop(), ADC_Disable(), ADC_FLAG_AWD1, ADC_FLAG_AWD2, ADC_FLAG_AWD3, ADC_FLAG_EOC, ADC_FLAG_EOS, ADC_FLAG_EOSMP, ADC_FLAG_JEOC, ADC_FLAG_JEOS, ADC_FLAG_JQOVF, ADC_FLAG_OVR, ADC_FLAG_RDY, ADC_IS_ENABLE, ADC_IT_AWD1, ADC_IT_AWD2, ADC_IT_AWD3, ADC_IT_EOC, ADC_IT_EOS, ADC_IT_EOSMP, ADC_IT_JEOC, ADC_IT_JEOS, ADC_IT_JQOVF, ADC_IT_OVR, ADC_IT_RDY, ADC_REGULAR_INJECTED_GROUP, ADC_SMPR1_FIELDS, assert_param, ADC_InjectionConfigTypeDef::ChannelCount, ADC_InjectionConfigTypeDef::ContextQueue, HAL_ADC_MspDeInit(), HAL_ADC_STATE_BUSY_INTERNAL, HAL_ADC_STATE_RESET, __ADC_HandleTypeDef::InjectionConfig, __ADC_HandleTypeDef::Instance, __ADC_HandleTypeDef::MspDeInitCallback, and __ADC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_ADC_Init

(

ADC_HandleTypeDef *

hadc

)

Initialize 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 (refer to description of RCC configuration for ADC in header of this file).

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".

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".

Parameters related to common ADC registers (ADC clock mode) are set only if all ADCs are disabled. If this is not the case, these common parameters setting are bypassed without error reporting: it can be the intended behaviour in case of update of a parameter of ADC_InitTypeDef on the fly, without disabling the other ADCs.

Parameters:

hadc	ADC handle

Return values:

HAL

status

Definition at line 418 of file stm32l4xx_hal_adc.c.

References __LL_ADC_COMMON_INSTANCE, ADC_ANY_OTHER_ENABLED, ADC_CFGR_AUTOWAIT, ADC_CFGR_CONTINUOUS, ADC_CFGR_DFSDM, ADC_CFGR_DISCONTINUOUS_NUM, ADC_CFGR_DMACONTREQ, ADC_CFGR_FIELDS_1, ADC_CFGR_FIELDS_2, ADC_CFGR_REG_DISCONTINUOUS, ADC_CLEAR_ERRORCODE, ADC_IS_CONVERSION_ONGOING_REGULAR, ADC_IS_CONVERSION_ONGOING_REGULAR_INJECTED, ADC_IS_ENABLE, ADC_SCAN_DISABLE, ADC_SCAN_ENABLE, ADC_SOFTWARE_START, ADC_STATE_CLR_SET, assert_param, ADC_InitTypeDef::ClockPrescaler, ADC_InitTypeDef::ContinuousConvMode, __ADC_HandleTypeDef::ConvCpltCallback, __ADC_HandleTypeDef::ConvHalfCpltCallback, ADC_InitTypeDef::DataAlign, ADC_InitTypeDef::DiscontinuousConvMode, ADC_InitTypeDef::DMAContinuousRequests, __ADC_HandleTypeDef::EndOfSamplingCallback, ADC_InitTypeDef::EOCSelection, __ADC_HandleTypeDef::ErrorCallback, __ADC_HandleTypeDef::ErrorCode, ADC_InitTypeDef::ExternalTrigConv, ADC_InitTypeDef::ExternalTrigConvEdge, HAL_ADC_ConvCpltCallback(), HAL_ADC_ConvHalfCpltCallback(), HAL_ADC_ERROR_INTERNAL, HAL_ADC_ErrorCallback(), HAL_ADC_LevelOutOfWindowCallback(), HAL_ADC_MspInit(), HAL_ADC_STATE_BUSY_INTERNAL, HAL_ADC_STATE_ERROR_INTERNAL, HAL_ADC_STATE_READY, HAL_ADC_STATE_REG_BUSY, HAL_ADC_STATE_RESET, HAL_ADCEx_EndOfSamplingCallback(), HAL_ADCEx_InjectedConvCpltCallback(), HAL_ADCEx_InjectedQueueOverflowCallback(), HAL_ADCEx_LevelOutOfWindow2Callback(), HAL_ADCEx_LevelOutOfWindow3Callback(), __ADC_HandleTypeDef::Init, __ADC_HandleTypeDef::InjectedConvCpltCallback, __ADC_HandleTypeDef::InjectedQueueOverflowCallback, __ADC_HandleTypeDef::Instance, IS_ADC_CLOCKPRESCALER, IS_ADC_DATA_ALIGN, IS_ADC_DFSDMCFG_MODE, IS_ADC_EOC_SELECTION, IS_ADC_EXTTRIG, IS_ADC_EXTTRIG_EDGE, IS_ADC_OVERRUN, IS_ADC_OVERSAMPLING_RATIO, IS_ADC_REGOVERSAMPLING_MODE, IS_ADC_REGULAR_DISCONT_NUMBER, IS_ADC_REGULAR_NB_CONV, IS_ADC_RESOLUTION, IS_ADC_RIGHT_BIT_SHIFT, IS_ADC_SCAN_MODE, IS_ADC_TRIGGERED_OVERSAMPLING_MODE, __ADC_HandleTypeDef::LevelOutOfWindow2Callback, __ADC_HandleTypeDef::LevelOutOfWindow3Callback, __ADC_HandleTypeDef::LevelOutOfWindowCallback, LL_ADC_DELAY_INTERNAL_REGUL_STAB_US, LL_ADC_DisableDeepPowerDown(), LL_ADC_EnableInternalRegulator(), LL_ADC_IsDeepPowerDownEnabled(), LL_ADC_IsInternalRegulatorEnabled(), LL_ADC_SetCommonClock(), __ADC_HandleTypeDef::Lock, ADC_InitTypeDef::LowPowerAutoWait, __ADC_HandleTypeDef::MspInitCallback, ADC_InitTypeDef::NbrOfConversion, ADC_InitTypeDef::NbrOfDiscConversion, ADC_InitTypeDef::Overrun, ADC_InitTypeDef::Oversampling, ADC_InitTypeDef::OversamplingMode, ADC_OversamplingTypeDef::OversamplingStopReset, ADC_OversamplingTypeDef::Ratio, ADC_InitTypeDef::Resolution, ADC_OversamplingTypeDef::RightBitShift, ADC_InitTypeDef::ScanConvMode, __ADC_HandleTypeDef::State, and ADC_OversamplingTypeDef::TriggeredMode.

void HAL_ADC_MspDeInit

(

ADC_HandleTypeDef *

hadc

)

DeInitialize the ADC MSP.

Parameters:

hadc	ADC handle

Note:

All ADC instances use the same core clock at RCC level, disabling the core clock reset all ADC instances).

Return values:

None

Definition at line 918 of file stm32l4xx_hal_adc.c.

Referenced by HAL_ADC_DeInit(), and HAL_ADC_UnRegisterCallback().

void HAL_ADC_MspInit

(

ADC_HandleTypeDef *

hadc

)

Initialize the ADC MSP.

Parameters:

hadc	ADC handle

Return values:

None

Definition at line 901 of file stm32l4xx_hal_adc.c.

Referenced by HAL_ADC_Init(), and HAL_ADC_UnRegisterCallback().

HAL_StatusTypeDef HAL_ADC_RegisterCallback	(	ADC_HandleTypeDef *	hadc,
		HAL_ADC_CallbackIDTypeDef	CallbackID,
		pADC_CallbackTypeDef	pCallback
	)

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

Parameters:

hadc	Pointer to a ADC_HandleTypeDef structure that contains the configuration information for the specified ADC.
CallbackID	ID of the callback to be registered This parameter can be one of the following values: HAL_ADC_CONVERSION_COMPLETE_CB_ID ADC conversion complete callback ID HAL_ADC_CONVERSION_HALF_CB_ID ADC conversion complete callback ID HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID ADC analog watchdog 1 callback ID HAL_ADC_ERROR_CB_ID ADC error callback ID HAL_ADC_INJ_CONVERSION_COMPLETE_CB_ID ADC group injected conversion complete callback ID HAL_ADC_INJ_QUEUE_OVEFLOW_CB_ID ADC group injected context queue overflow callback ID HAL_ADC_LEVEL_OUT_OF_WINDOW_2_CB_ID ADC analog watchdog 2 callback ID HAL_ADC_LEVEL_OUT_OF_WINDOW_3_CB_ID ADC analog watchdog 3 callback ID HAL_ADC_END_OF_SAMPLING_CB_ID ADC end of sampling callback ID HAL_ADC_MSPINIT_CB_ID ADC Msp Init callback ID HAL_ADC_MSPDEINIT_CB_ID ADC Msp DeInit callback ID HAL_ADC_MSPINIT_CB_ID MspInit callback ID HAL_ADC_MSPDEINIT_CB_ID MspDeInit callback ID
pCallback	pointer to the Callback function

Return values:

HAL

status

Definition at line 952 of file stm32l4xx_hal_adc.c.

References __ADC_HandleTypeDef::ConvCpltCallback, __ADC_HandleTypeDef::ConvHalfCpltCallback, __ADC_HandleTypeDef::EndOfSamplingCallback, __ADC_HandleTypeDef::ErrorCallback, __ADC_HandleTypeDef::ErrorCode, HAL_ADC_CONVERSION_COMPLETE_CB_ID, HAL_ADC_CONVERSION_HALF_CB_ID, HAL_ADC_END_OF_SAMPLING_CB_ID, HAL_ADC_ERROR_CB_ID, HAL_ADC_ERROR_INVALID_CALLBACK, HAL_ADC_INJ_CONVERSION_COMPLETE_CB_ID, HAL_ADC_INJ_QUEUE_OVEFLOW_CB_ID, HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID, HAL_ADC_LEVEL_OUT_OF_WINDOW_2_CB_ID, HAL_ADC_LEVEL_OUT_OF_WINDOW_3_CB_ID, HAL_ADC_MSPDEINIT_CB_ID, HAL_ADC_MSPINIT_CB_ID, HAL_ADC_STATE_READY, HAL_ADC_STATE_RESET, __ADC_HandleTypeDef::InjectedConvCpltCallback, __ADC_HandleTypeDef::InjectedQueueOverflowCallback, __ADC_HandleTypeDef::LevelOutOfWindow2Callback, __ADC_HandleTypeDef::LevelOutOfWindow3Callback, __ADC_HandleTypeDef::LevelOutOfWindowCallback, __ADC_HandleTypeDef::MspDeInitCallback, __ADC_HandleTypeDef::MspInitCallback, and __ADC_HandleTypeDef::State.

HAL_StatusTypeDef HAL_ADC_UnRegisterCallback	(	ADC_HandleTypeDef *	hadc,
		HAL_ADC_CallbackIDTypeDef	CallbackID
	)

Unregister a ADC Callback ADC callback is redirected to the weak predefined callback.

Parameters:

hadc

Pointer to a ADC_HandleTypeDef structure that contains the configuration information for the specified ADC.

CallbackID

ID of the callback to be unregistered This parameter can be one of the following values: HAL_ADC_CONVERSION_COMPLETE_CB_ID ADC conversion complete callback ID HAL_ADC_CONVERSION_HALF_CB_ID ADC conversion complete callback ID HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID ADC analog watchdog 1 callback ID HAL_ADC_ERROR_CB_ID ADC error callback ID HAL_ADC_INJ_CONVERSION_COMPLETE_CB_ID ADC group injected conversion complete callback ID HAL_ADC_INJ_QUEUE_OVEFLOW_CB_ID ADC group injected context queue overflow callback ID HAL_ADC_LEVEL_OUT_OF_WINDOW_2_CB_ID ADC analog watchdog 2 callback ID HAL_ADC_LEVEL_OUT_OF_WINDOW_3_CB_ID ADC analog watchdog 3 callback ID HAL_ADC_END_OF_SAMPLING_CB_ID ADC end of sampling callback ID HAL_ADC_MSPINIT_CB_ID ADC Msp Init callback ID HAL_ADC_MSPDEINIT_CB_ID ADC Msp DeInit callback ID HAL_ADC_MSPINIT_CB_ID MspInit callback ID HAL_ADC_MSPDEINIT_CB_ID MspDeInit callback ID

Return values:

HAL

status

Definition at line 1076 of file stm32l4xx_hal_adc.c.

References __ADC_HandleTypeDef::ConvCpltCallback, __ADC_HandleTypeDef::ConvHalfCpltCallback, __ADC_HandleTypeDef::EndOfSamplingCallback, __ADC_HandleTypeDef::ErrorCallback, __ADC_HandleTypeDef::ErrorCode, HAL_ADC_ConvCpltCallback(), HAL_ADC_CONVERSION_COMPLETE_CB_ID, HAL_ADC_CONVERSION_HALF_CB_ID, HAL_ADC_ConvHalfCpltCallback(), HAL_ADC_END_OF_SAMPLING_CB_ID, HAL_ADC_ERROR_CB_ID, HAL_ADC_ERROR_INVALID_CALLBACK, HAL_ADC_ErrorCallback(), HAL_ADC_INJ_CONVERSION_COMPLETE_CB_ID, HAL_ADC_INJ_QUEUE_OVEFLOW_CB_ID, HAL_ADC_LEVEL_OUT_OF_WINDOW_1_CB_ID, HAL_ADC_LEVEL_OUT_OF_WINDOW_2_CB_ID, HAL_ADC_LEVEL_OUT_OF_WINDOW_3_CB_ID, HAL_ADC_LevelOutOfWindowCallback(), HAL_ADC_MspDeInit(), HAL_ADC_MSPDEINIT_CB_ID, HAL_ADC_MspInit(), HAL_ADC_MSPINIT_CB_ID, HAL_ADC_STATE_READY, HAL_ADC_STATE_RESET, HAL_ADCEx_EndOfSamplingCallback(), HAL_ADCEx_InjectedConvCpltCallback(), HAL_ADCEx_InjectedQueueOverflowCallback(), HAL_ADCEx_LevelOutOfWindow2Callback(), HAL_ADCEx_LevelOutOfWindow3Callback(), __ADC_HandleTypeDef::InjectedConvCpltCallback, __ADC_HandleTypeDef::InjectedQueueOverflowCallback, __ADC_HandleTypeDef::LevelOutOfWindow2Callback, __ADC_HandleTypeDef::LevelOutOfWindow3Callback, __ADC_HandleTypeDef::LevelOutOfWindowCallback, __ADC_HandleTypeDef::MspDeInitCallback, __ADC_HandleTypeDef::MspInitCallback, and __ADC_HandleTypeDef::State.