This file provides firmware functions to manage the following functionalities of the Digital Filter for Sigma-Delta Modulators (DFSDM) peripherals: More...

Functions
static uint32_t	DFSDM_GetInjChannelsNbr (uint32_t Channels)
	This function allows to get the number of injected channels. More...

static uint32_t	DFSDM_GetChannelFromInstance (const DFSDM_Channel_TypeDef *Instance)
	This function allows to get the channel number from channel instance. More...

static void	DFSDM_RegConvStart (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to really start regular conversion. More...

static void	DFSDM_RegConvStop (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to really stop regular conversion. More...

static void	DFSDM_InjConvStart (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to really start injected conversion. More...

static void	DFSDM_InjConvStop (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to really stop injected conversion. More...

static void	DFSDM_DMARegularHalfConvCplt (DMA_HandleTypeDef *hdma)
	DMA half transfer complete callback for regular conversion. More...

static void	DFSDM_DMARegularConvCplt (DMA_HandleTypeDef *hdma)
	DMA transfer complete callback for regular conversion. More...

static void	DFSDM_DMAInjectedHalfConvCplt (DMA_HandleTypeDef *hdma)
	DMA half transfer complete callback for injected conversion. More...

static void	DFSDM_DMAInjectedConvCplt (DMA_HandleTypeDef *hdma)
	DMA transfer complete callback for injected conversion. More...

static void	DFSDM_DMAError (DMA_HandleTypeDef *hdma)
	DMA error callback. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelInit (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	Initialize the DFSDM channel according to the specified parameters in the DFSDM_ChannelInitTypeDef structure and initialize the associated handle. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelDeInit (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	De-initialize the DFSDM channel. More...

void	HAL_DFSDM_ChannelMspInit (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	Initialize the DFSDM channel MSP. More...

void	HAL_DFSDM_ChannelMspDeInit (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	De-initialize the DFSDM channel MSP. More...

HAL_StatusTypeDef	HAL_DFSDM_Channel_RegisterCallback (DFSDM_Channel_HandleTypeDef *hdfsdm_channel, HAL_DFSDM_Channel_CallbackIDTypeDef CallbackID, pDFSDM_Channel_CallbackTypeDef pCallback)
	Register a user DFSDM channel callback to be used instead of the weak predefined callback. More...

HAL_StatusTypeDef	HAL_DFSDM_Channel_UnRegisterCallback (DFSDM_Channel_HandleTypeDef *hdfsdm_channel, HAL_DFSDM_Channel_CallbackIDTypeDef CallbackID)
	Unregister a user DFSDM channel callback. DFSDM channel callback is redirected to the weak predefined callback. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelCkabStart (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to start clock absence detection in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelPollForCkab (DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t Timeout)
	This function allows to poll for the clock absence detection. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelCkabStop (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to stop clock absence detection in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelCkabStart_IT (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to start clock absence detection in interrupt mode. More...

void	HAL_DFSDM_ChannelCkabCallback (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	Clock absence detection callback. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelCkabStop_IT (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to stop clock absence detection in interrupt mode. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelScdStart (DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t Threshold, uint32_t BreakSignal)
	This function allows to start short circuit detection in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelPollForScd (DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t Timeout)
	This function allows to poll for the short circuit detection. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelScdStop (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to stop short circuit detection in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelScdStart_IT (DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t Threshold, uint32_t BreakSignal)
	This function allows to start short circuit detection in interrupt mode. More...

void	HAL_DFSDM_ChannelScdCallback (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	Short circuit detection callback. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelScdStop_IT (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to stop short circuit detection in interrupt mode. More...

int16_t	HAL_DFSDM_ChannelGetAwdValue (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to get channel analog watchdog value. More...

HAL_StatusTypeDef	HAL_DFSDM_ChannelModifyOffset (DFSDM_Channel_HandleTypeDef *hdfsdm_channel, int32_t Offset)
	This function allows to modify channel offset value. More...

HAL_DFSDM_Channel_StateTypeDef	HAL_DFSDM_ChannelGetState (DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
	This function allows to get the current DFSDM channel handle state. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInit (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Initialize the DFSDM filter according to the specified parameters in the DFSDM_FilterInitTypeDef structure and initialize the associated handle. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterDeInit (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	De-initializes the DFSDM filter. More...

void	HAL_DFSDM_FilterMspInit (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Initializes the DFSDM filter MSP. More...

void	HAL_DFSDM_FilterMspDeInit (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	De-initializes the DFSDM filter MSP. More...

HAL_StatusTypeDef	HAL_DFSDM_Filter_RegisterCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, HAL_DFSDM_Filter_CallbackIDTypeDef CallbackID, pDFSDM_Filter_CallbackTypeDef pCallback)
	Register a user DFSDM filter callback to be used instead of the weak predefined callback. More...

HAL_StatusTypeDef	HAL_DFSDM_Filter_UnRegisterCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, HAL_DFSDM_Filter_CallbackIDTypeDef CallbackID)
	Unregister a user DFSDM filter callback. DFSDM filter callback is redirected to the weak predefined callback. More...

HAL_StatusTypeDef	HAL_DFSDM_Filter_RegisterAwdCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, pDFSDM_Filter_AwdCallbackTypeDef pCallback)
	Register a user DFSDM filter analog watchdog callback to be used instead of the weak predefined callback. More...

HAL_StatusTypeDef	HAL_DFSDM_Filter_UnRegisterAwdCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Unregister a user DFSDM filter analog watchdog callback. DFSDM filter AWD callback is redirected to the weak predefined callback. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterConfigRegChannel (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, uint32_t Channel, uint32_t ContinuousMode)
	This function allows to select channel and to enable/disable continuous mode for regular conversion. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterConfigInjChannel (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, uint32_t Channel)
	This function allows to select channels for injected conversion. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterRegularStart (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to start regular conversion in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterPollForRegConversion (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, uint32_t Timeout)
	This function allows to poll for the end of regular conversion. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterRegularStop (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop regular conversion in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterRegularStart_IT (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to start regular conversion in interrupt mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterRegularStop_IT (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop regular conversion in interrupt mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterRegularStart_DMA (DFSDM_Filter_HandleTypeDef hdfsdm_filter, int32_t pData, uint32_t Length)
	This function allows to start regular conversion in DMA mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterRegularMsbStart_DMA (DFSDM_Filter_HandleTypeDef hdfsdm_filter, int16_t pData, uint32_t Length)
	This function allows to start regular conversion in DMA mode and to get only the 16 most significant bits of conversion. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterRegularStop_DMA (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop regular conversion in DMA mode. More...

int32_t	HAL_DFSDM_FilterGetRegularValue (DFSDM_Filter_HandleTypeDef hdfsdm_filter, uint32_t Channel)
	This function allows to get regular conversion value. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInjectedStart (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to start injected conversion in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterPollForInjConversion (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, uint32_t Timeout)
	This function allows to poll for the end of injected conversion. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInjectedStop (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop injected conversion in polling mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInjectedStart_IT (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to start injected conversion in interrupt mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInjectedStop_IT (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop injected conversion in interrupt mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInjectedStart_DMA (DFSDM_Filter_HandleTypeDef hdfsdm_filter, int32_t pData, uint32_t Length)
	This function allows to start injected conversion in DMA mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInjectedMsbStart_DMA (DFSDM_Filter_HandleTypeDef hdfsdm_filter, int16_t pData, uint32_t Length)
	This function allows to start injected conversion in DMA mode and to get only the 16 most significant bits of conversion. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterInjectedStop_DMA (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop injected conversion in DMA mode. More...

int32_t	HAL_DFSDM_FilterGetInjectedValue (DFSDM_Filter_HandleTypeDef hdfsdm_filter, uint32_t Channel)
	This function allows to get injected conversion value. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterAwdStart_IT (DFSDM_Filter_HandleTypeDef hdfsdm_filter, DFSDM_Filter_AwdParamTypeDef awdParam)
	This function allows to start filter analog watchdog in interrupt mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterAwdStop_IT (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop filter analog watchdog in interrupt mode. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterExdStart (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, uint32_t Channel)
	This function allows to start extreme detector feature. More...

HAL_StatusTypeDef	HAL_DFSDM_FilterExdStop (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to stop extreme detector feature. More...

int32_t	HAL_DFSDM_FilterGetExdMaxValue (DFSDM_Filter_HandleTypeDef hdfsdm_filter, uint32_t Channel)
	This function allows to get extreme detector maximum value. More...

int32_t	HAL_DFSDM_FilterGetExdMinValue (DFSDM_Filter_HandleTypeDef hdfsdm_filter, uint32_t Channel)
	This function allows to get extreme detector minimum value. More...

uint32_t	HAL_DFSDM_FilterGetConvTimeValue (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to get conversion time value. More...

void	HAL_DFSDM_IRQHandler (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function handles the DFSDM interrupts. More...

void	HAL_DFSDM_FilterRegConvCpltCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Regular conversion complete callback. More...

void	HAL_DFSDM_FilterRegConvHalfCpltCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Half regular conversion complete callback. More...

void	HAL_DFSDM_FilterInjConvCpltCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Injected conversion complete callback. More...

void	HAL_DFSDM_FilterInjConvHalfCpltCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Half injected conversion complete callback. More...

void	HAL_DFSDM_FilterAwdCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter, uint32_t Channel, uint32_t Threshold)
	Filter analog watchdog callback. More...

void	HAL_DFSDM_FilterErrorCallback (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	Error callback. More...

HAL_DFSDM_Filter_StateTypeDef	HAL_DFSDM_FilterGetState (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to get the current DFSDM filter handle state. More...

uint32_t	HAL_DFSDM_FilterGetError (DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
	This function allows to get the current DFSDM filter error. More...

Variables
static __IO uint32_t	v_dfsdm1ChannelCounter = 0

static DFSDM_Channel_HandleTypeDef *	a_dfsdm1ChannelHandle [DFSDM1_CHANNEL_NUMBER] = {NULL}

Detailed Description

This file provides firmware functions to manage the following functionalities of the Digital Filter for Sigma-Delta Modulators (DFSDM) peripherals:

Author

MCD Application Team

Initialization and configuration of channels and filters
Regular channels configuration
Injected channels configuration
Regular/Injected Channels DMA Configuration
Interrupts and flags management
Analog watchdog feature
Short-circuit detector feature
Extremes detector feature
Clock absence detector feature
Break generation on analog watchdog or short-circuit event

==============================================================================
                   ##### How to use this driver #####
==============================================================================
[..]
  *** Channel initialization ***
  ==============================
  [..]
    (#) User has first to initialize channels (before filters initialization).
    (#) As prerequisite, fill in the HAL_DFSDM_ChannelMspInit() :
      (++) Enable DFSDMz clock interface with __HAL_RCC_DFSDMz_CLK_ENABLE().
      (++) Enable the clocks for the DFSDMz GPIOS with __HAL_RCC_GPIOx_CLK_ENABLE().
      (++) Configure these DFSDMz pins in alternate mode using HAL_GPIO_Init().
      (++) If interrupt mode is used, enable and configure DFSDMz_FLT0 global
          interrupt with HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ().
    (#) Configure the output clock, input, serial interface, analog watchdog,
        offset and data right bit shift parameters for this channel using the
        HAL_DFSDM_ChannelInit() function.

  *** Channel clock absence detector ***
  ======================================
  [..]
    (#) Start clock absence detector using HAL_DFSDM_ChannelCkabStart() or
        HAL_DFSDM_ChannelCkabStart_IT().
    (#) In polling mode, use HAL_DFSDM_ChannelPollForCkab() to detect the clock
        absence.
    (#) In interrupt mode, HAL_DFSDM_ChannelCkabCallback() will be called if
        clock absence is detected.
    (#) Stop clock absence detector using HAL_DFSDM_ChannelCkabStop() or
        HAL_DFSDM_ChannelCkabStop_IT().
    (#) Please note that the same mode (polling or interrupt) has to be used
        for all channels because the channels are sharing the same interrupt.
    (#) Please note also that in interrupt mode, if clock absence detector is
        stopped for one channel, interrupt will be disabled for all channels.

  *** Channel short circuit detector ***
  ======================================
  [..]
    (#) Start short circuit detector using HAL_DFSDM_ChannelScdStart() or
        or HAL_DFSDM_ChannelScdStart_IT().
    (#) In polling mode, use HAL_DFSDM_ChannelPollForScd() to detect short
        circuit.
    (#) In interrupt mode, HAL_DFSDM_ChannelScdCallback() will be called if
        short circuit is detected.
    (#) Stop short circuit detector using HAL_DFSDM_ChannelScdStop() or
        or HAL_DFSDM_ChannelScdStop_IT().
    (#) Please note that the same mode (polling or interrupt) has to be used
        for all channels because the channels are sharing the same interrupt.
    (#) Please note also that in interrupt mode, if short circuit detector is
        stopped for one channel, interrupt will be disabled for all channels.

  *** Channel analog watchdog value ***
  =====================================
  [..]
    (#) Get analog watchdog filter value of a channel using
        HAL_DFSDM_ChannelGetAwdValue().

  *** Channel offset value ***
  =====================================
  [..]
    (#) Modify offset value of a channel using HAL_DFSDM_ChannelModifyOffset().

  *** Filter initialization ***
  =============================
  [..]
    (#) After channel initialization, user has to init filters.
    (#) As prerequisite, fill in the HAL_DFSDM_FilterMspInit() :
      (++) If interrupt mode is used , enable and configure DFSDMz_FLTx global
          interrupt with HAL_NVIC_SetPriority() and HAL_NVIC_EnableIRQ().
          Please note that DFSDMz_FLT0 global interrupt could be already
          enabled if interrupt is used for channel.
      (++) If DMA mode is used, configure DMA with HAL_DMA_Init() and link it
          with DFSDMz filter handle using __HAL_LINKDMA().
    (#) Configure the regular conversion, injected conversion and filter
        parameters for this filter using the HAL_DFSDM_FilterInit() function.

  *** Filter regular channel conversion ***
  =========================================
  [..]
    (#) Select regular channel and enable/disable continuous mode using
        HAL_DFSDM_FilterConfigRegChannel().
    (#) Start regular conversion using HAL_DFSDM_FilterRegularStart(),
        HAL_DFSDM_FilterRegularStart_IT(), HAL_DFSDM_FilterRegularStart_DMA() or
        HAL_DFSDM_FilterRegularMsbStart_DMA().
    (#) In polling mode, use HAL_DFSDM_FilterPollForRegConversion() to detect
        the end of regular conversion.
    (#) In interrupt mode, HAL_DFSDM_FilterRegConvCpltCallback() will be called
        at the end of regular conversion.
    (#) Get value of regular conversion and corresponding channel using
        HAL_DFSDM_FilterGetRegularValue().
    (#) In DMA mode, HAL_DFSDM_FilterRegConvHalfCpltCallback() and
        HAL_DFSDM_FilterRegConvCpltCallback() will be called respectively at the
        half transfer and at the transfer complete. Please note that
        HAL_DFSDM_FilterRegConvHalfCpltCallback() will be called only in DMA
        circular mode.
    (#) Stop regular conversion using HAL_DFSDM_FilterRegularStop(),
        HAL_DFSDM_FilterRegularStop_IT() or HAL_DFSDM_FilterRegularStop_DMA().

  *** Filter injected channels conversion ***
  ===========================================
  [..]
    (#) Select injected channels using HAL_DFSDM_FilterConfigInjChannel().
    (#) Start injected conversion using HAL_DFSDM_FilterInjectedStart(),
        HAL_DFSDM_FilterInjectedStart_IT(), HAL_DFSDM_FilterInjectedStart_DMA() or
        HAL_DFSDM_FilterInjectedMsbStart_DMA().
    (#) In polling mode, use HAL_DFSDM_FilterPollForInjConversion() to detect
        the end of injected conversion.
    (#) In interrupt mode, HAL_DFSDM_FilterInjConvCpltCallback() will be called
        at the end of injected conversion.
    (#) Get value of injected conversion and corresponding channel using
        HAL_DFSDM_FilterGetInjectedValue().
    (#) In DMA mode, HAL_DFSDM_FilterInjConvHalfCpltCallback() and
        HAL_DFSDM_FilterInjConvCpltCallback() will be called respectively at the
        half transfer and at the transfer complete. Please note that
        HAL_DFSDM_FilterInjConvCpltCallback() will be called only in DMA
        circular mode.
    (#) Stop injected conversion using HAL_DFSDM_FilterInjectedStop(),
        HAL_DFSDM_FilterInjectedStop_IT() or HAL_DFSDM_FilterInjectedStop_DMA().

  *** Filter analog watchdog ***
  ==============================
  [..]
    (#) Start filter analog watchdog using HAL_DFSDM_FilterAwdStart_IT().
    (#) HAL_DFSDM_FilterAwdCallback() will be called if analog watchdog occurs.
    (#) Stop filter analog watchdog using HAL_DFSDM_FilterAwdStop_IT().

  *** Filter extreme detector ***
  ===============================
  [..]
    (#) Start filter extreme detector using HAL_DFSDM_FilterExdStart().
    (#) Get extreme detector maximum value using HAL_DFSDM_FilterGetExdMaxValue().
    (#) Get extreme detector minimum value using HAL_DFSDM_FilterGetExdMinValue().
    (#) Start filter extreme detector using HAL_DFSDM_FilterExdStop().

  *** Filter conversion time ***
  ==============================
  [..]
    (#) Get conversion time value using HAL_DFSDM_FilterGetConvTimeValue().

  *** Callback registration ***
  =============================
  [..]
  The compilation define USE_HAL_DFSDM_REGISTER_CALLBACKS when set to 1
  allows the user to configure dynamically the driver callbacks.
  Use functions HAL_DFSDM_Channel_RegisterCallback(),
  HAL_DFSDM_Filter_RegisterCallback() or
  HAL_DFSDM_Filter_RegisterAwdCallback() to register a user callback.

  [..]
  Function HAL_DFSDM_Channel_RegisterCallback() allows to register
  following callbacks:
    (+) CkabCallback      : DFSDM channel clock absence detection callback.
    (+) ScdCallback       : DFSDM channel short circuit detection callback.
    (+) MspInitCallback   : DFSDM channel MSP init callback.
    (+) MspDeInitCallback : DFSDM channel MSP de-init callback.
  [..]
  This function takes as parameters the HAL peripheral handle, the Callback ID
  and a pointer to the user callback function.

  [..]
  Function HAL_DFSDM_Filter_RegisterCallback() allows to register
  following callbacks:
    (+) RegConvCpltCallback     : DFSDM filter regular conversion complete callback.
    (+) RegConvHalfCpltCallback : DFSDM filter half regular conversion complete callback.
    (+) InjConvCpltCallback     : DFSDM filter injected conversion complete callback.
    (+) InjConvHalfCpltCallback : DFSDM filter half injected conversion complete callback.
    (+) ErrorCallback           : DFSDM filter error callback.
    (+) MspInitCallback         : DFSDM filter MSP init callback.
    (+) MspDeInitCallback       : DFSDM filter MSP de-init callback.
  [..]
  This function takes as parameters the HAL peripheral handle, the Callback ID
  and a pointer to the user callback function.

  [..]
  For specific DFSDM filter analog watchdog callback use dedicated register callback:
  HAL_DFSDM_Filter_RegisterAwdCallback().

  [..]
  Use functions HAL_DFSDM_Channel_UnRegisterCallback() or
  HAL_DFSDM_Filter_UnRegisterCallback() to reset a callback to the default
  weak function.

  [..]
  HAL_DFSDM_Channel_UnRegisterCallback() takes as parameters the HAL peripheral handle,
  and the Callback ID.
  [..]
  This function allows to reset following callbacks:
    (+) CkabCallback      : DFSDM channel clock absence detection callback.
    (+) ScdCallback       : DFSDM channel short circuit detection callback.
    (+) MspInitCallback   : DFSDM channel MSP init callback.
    (+) MspDeInitCallback : DFSDM channel MSP de-init callback.

  [..]
  HAL_DFSDM_Filter_UnRegisterCallback() takes as parameters the HAL peripheral handle,
  and the Callback ID.
  [..]
  This function allows to reset following callbacks:
    (+) RegConvCpltCallback     : DFSDM filter regular conversion complete callback.
    (+) RegConvHalfCpltCallback : DFSDM filter half regular conversion complete callback.
    (+) InjConvCpltCallback     : DFSDM filter injected conversion complete callback.
    (+) InjConvHalfCpltCallback : DFSDM filter half injected conversion complete callback.
    (+) ErrorCallback           : DFSDM filter error callback.
    (+) MspInitCallback         : DFSDM filter MSP init callback.
    (+) MspDeInitCallback       : DFSDM filter MSP de-init callback.

  [..]
  For specific DFSDM filter analog watchdog callback use dedicated unregister callback:
  HAL_DFSDM_Filter_UnRegisterAwdCallback().

  [..]
  By default, after the call of init function and if the state is RESET
  all callbacks are reset to the corresponding legacy weak functions:
  examples HAL_DFSDM_ChannelScdCallback(), HAL_DFSDM_FilterErrorCallback().
  Exception done for MspInit and MspDeInit callbacks that are respectively
  reset to the legacy weak functions in the init and de-init only when these
  callbacks are null (not registered beforehand).
  If not, MspInit or MspDeInit are not null, the init and de-init keep and use
  the user MspInit/MspDeInit callbacks (registered beforehand)

  [..]
  Callbacks can be registered/unregistered in READY state only.
  Exception done for MspInit/MspDeInit callbacks that can be registered/unregistered
  in READY or RESET state, thus registered (user) MspInit/DeInit callbacks can be used
  during the init/de-init.
  In that case first register the MspInit/MspDeInit user callbacks using
  HAL_DFSDM_Channel_RegisterCallback() or
  HAL_DFSDM_Filter_RegisterCallback() before calling init or de-init function.

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

Attention

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

Definition in file stm32l4xx_hal_dfsdm.c.

Functions

Variables

Detailed Description

© Copyright (c) 2017 STMicroelectronics. All rights reserved.