stm32l4xx_hal_dfsdm_ex.c

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/**
  ******************************************************************************
  * @file    stm32l4xx_hal_dfsdm_ex.c
  * @author  MCD Application Team
  * @brief   DFSDM Extended HAL module driver.
  *          This file provides firmware functions to manage the following
  *          functionality of the DFSDM Peripheral Controller:
  *           + Set and get pulses skipping on channel.
  *
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2017 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal.h"

/** @addtogroup STM32L4xx_HAL_Driver
  * @{
  */

#ifdef HAL_DFSDM_MODULE_ENABLED

#if defined(STM32L4R5xx) || defined(STM32L4R7xx) || defined(STM32L4R9xx) || defined(STM32L4S5xx) || defined(STM32L4S7xx) || defined(STM32L4S9xx) || \
    defined(STM32L4P5xx) || defined(STM32L4Q5xx)

/** @defgroup DFSDMEx DFSDMEx
  * @brief DFSDM Extended HAL module driver
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

/** @defgroup DFSDMEx_Exported_Functions DFSDM Extended Exported Functions
  * @{
  */

/** @defgroup DFSDMEx_Exported_Functions_Group1_Channel Extended channel operation functions
  * @brief    DFSDM extended channel operation functions
 *
@verbatim
 ===============================================================================
               ##### Extended channel operation functions #####
 ===============================================================================
    [..]  This section provides functions allowing to:
      (+) Set and get value of pulses skipping on channel

@endverbatim
  * @{
  */

/**
  * @brief  Set value of pulses skipping.
  * @param  hdfsdm_channel DFSDM channel handle.
  * @param  PulsesValue Value of pulses to be skipped.
  *         This parameter must be a number between Min_Data = 0 and Max_Data = 63.
  * @retval HAL status.
  */
HAL_StatusTypeDef HAL_DFDSMEx_ChannelSetPulsesSkipping(DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t PulsesValue)
{
  HAL_StatusTypeDef status = HAL_OK;

  /* Check pulses value */
  assert_param(IS_DFSDM_CHANNEL_SKIPPING_VALUE(PulsesValue));

  /* Check DFSDM channel state */
  if (hdfsdm_channel->State == HAL_DFSDM_CHANNEL_STATE_READY)
  {
    /* Set new value of pulses skipping */
    hdfsdm_channel->Instance->CHDLYR = (PulsesValue & DFSDM_CHDLYR_PLSSKP);
  }
  else
  {
    status = HAL_ERROR;
  }
  return status;
}

/**
  * @brief  Get value of pulses skipping.
  * @param  hdfsdm_channel DFSDM channel handle.
  * @param  PulsesValue Value of pulses to be skipped.
  * @retval HAL status.
  */
HAL_StatusTypeDef HAL_DFDSMEx_ChannelGetPulsesSkipping(DFSDM_Channel_HandleTypeDef *hdfsdm_channel, uint32_t *PulsesValue)
{
  HAL_StatusTypeDef status = HAL_OK;

  /* Check DFSDM channel state */
  if (hdfsdm_channel->State == HAL_DFSDM_CHANNEL_STATE_READY)
  {
    /* Get value of remaining pulses to be skipped */
    *PulsesValue = (hdfsdm_channel->Instance->CHDLYR & DFSDM_CHDLYR_PLSSKP);
  }
  else
  {
    status = HAL_ERROR;
  }
  return status;
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#endif /* STM32L4R5xx || STM32L4R7xx || STM32L4R9xx || STM32L4S5xx || STM32L4S7xx || STM32L4S9xx || STM32L4P5xx || STM32L4Q5xx */

#endif /* HAL_DFSDM_MODULE_ENABLED */

/**
  * @}
  */