/**
******************************************************************************
* @file stm32h7xx_hal_dfsdm.c
* @author MCD Application Team
* @brief This file provides firmware functions to manage the following
* functionalities of the Digital Filter for Sigma-Delta Modulators
* (DFSDM) peripherals:
* + 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
*
******************************************************************************
* @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.
*
******************************************************************************
@verbatim
==============================================================================
##### 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.
@endverbatim
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_hal.h"
/** @addtogroup STM32H7xx_HAL_Driver
* @{
*/
#ifdef HAL_DFSDM_MODULE_ENABLED
/** @defgroup DFSDM DFSDM
* @brief DFSDM HAL driver module
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @defgroup DFSDM_Private_Define DFSDM Private Define
* @{
*/
#define DFSDM_FLTCR1_MSB_RCH_OFFSET 8
#define DFSDM_MSB_MASK 0xFFFF0000U
#define DFSDM_LSB_MASK 0x0000FFFFU
#define DFSDM_CKAB_TIMEOUT 5000U
#define DFSDM1_CHANNEL_NUMBER 8U
#if defined(DFSDM2_Channel0)
#define DFSDM2_CHANNEL_NUMBER 2U
#endif /* DFSDM2_Channel0 */
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/** @defgroup DFSDM_Private_Variables DFSDM Private Variables
* @{
*/
static __IO uint32_t v_dfsdm1ChannelCounter = 0;
static DFSDM_Channel_HandleTypeDef *a_dfsdm1ChannelHandle[DFSDM1_CHANNEL_NUMBER] = {NULL};
#if defined(DFSDM2_Channel0)
static __IO uint32_t v_dfsdm2ChannelCounter = 0;
static DFSDM_Channel_HandleTypeDef *a_dfsdm2ChannelHandle[DFSDM2_CHANNEL_NUMBER] = {NULL};
#endif /* DFSDM2_Channel0 */
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup DFSDM_Private_Functions DFSDM Private Functions
* @{
*/
static uint32_t DFSDM_GetInjChannelsNbr(uint32_t Channels);
static uint32_t DFSDM_GetChannelFromInstance(const DFSDM_Channel_TypeDef *Instance);
static void DFSDM_RegConvStart(DFSDM_Filter_HandleTypeDef *hdfsdm_filter);
static void DFSDM_RegConvStop(DFSDM_Filter_HandleTypeDef *hdfsdm_filter);
static void DFSDM_InjConvStart(DFSDM_Filter_HandleTypeDef *hdfsdm_filter);
static void DFSDM_InjConvStop(DFSDM_Filter_HandleTypeDef *hdfsdm_filter);
static void DFSDM_DMARegularHalfConvCplt(DMA_HandleTypeDef *hdma);
static void DFSDM_DMARegularConvCplt(DMA_HandleTypeDef *hdma);
static void DFSDM_DMAInjectedHalfConvCplt(DMA_HandleTypeDef *hdma);
static void DFSDM_DMAInjectedConvCplt(DMA_HandleTypeDef *hdma);
static void DFSDM_DMAError(DMA_HandleTypeDef *hdma);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup DFSDM_Exported_Functions DFSDM Exported Functions
* @{
*/
/** @defgroup DFSDM_Exported_Functions_Group1_Channel Channel initialization and de-initialization functions
* @brief Channel initialization and de-initialization functions
*
@verbatim
==============================================================================
##### Channel initialization and de-initialization functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Initialize the DFSDM channel.
(+) De-initialize the DFSDM channel.
@endverbatim
* @{
*/
/**
* @brief Initialize the DFSDM channel according to the specified parameters
* in the DFSDM_ChannelInitTypeDef structure and initialize the associated handle.
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelInit(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
__IO uint32_t *channelCounterPtr;
DFSDM_Channel_HandleTypeDef **channelHandleTable;
DFSDM_Channel_TypeDef *channel0Instance;
/* Check DFSDM Channel handle */
if(hdfsdm_channel == NULL)
{
return HAL_ERROR;
}
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
assert_param(IS_FUNCTIONAL_STATE(hdfsdm_channel->Init.OutputClock.Activation));
assert_param(IS_DFSDM_CHANNEL_INPUT(hdfsdm_channel->Init.Input.Multiplexer));
assert_param(IS_DFSDM_CHANNEL_DATA_PACKING(hdfsdm_channel->Init.Input.DataPacking));
assert_param(IS_DFSDM_CHANNEL_INPUT_PINS(hdfsdm_channel->Init.Input.Pins));
assert_param(IS_DFSDM_CHANNEL_SERIAL_INTERFACE_TYPE(hdfsdm_channel->Init.SerialInterface.Type));
assert_param(IS_DFSDM_CHANNEL_SPI_CLOCK(hdfsdm_channel->Init.SerialInterface.SpiClock));
assert_param(IS_DFSDM_CHANNEL_FILTER_ORDER(hdfsdm_channel->Init.Awd.FilterOrder));
assert_param(IS_DFSDM_CHANNEL_FILTER_OVS_RATIO(hdfsdm_channel->Init.Awd.Oversampling));
assert_param(IS_DFSDM_CHANNEL_OFFSET(hdfsdm_channel->Init.Offset));
assert_param(IS_DFSDM_CHANNEL_RIGHT_BIT_SHIFT(hdfsdm_channel->Init.RightBitShift));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
channelCounterPtr = &v_dfsdm1ChannelCounter;
channelHandleTable = a_dfsdm1ChannelHandle;
channel0Instance = DFSDM1_Channel0;
}
else
{
channelCounterPtr = &v_dfsdm2ChannelCounter;
channelHandleTable = a_dfsdm2ChannelHandle;
channel0Instance = DFSDM2_Channel0;
}
#else /* DFSDM2_Channel0 */
channelCounterPtr = &v_dfsdm1ChannelCounter;
channelHandleTable = a_dfsdm1ChannelHandle;
channel0Instance = DFSDM1_Channel0;
#endif /* DFSDM2_Channel0 */
/* Check that channel has not been already initialized */
if (channelHandleTable[DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance)] != NULL)
{
return HAL_ERROR;
}
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
/* Reset callback pointers to the weak predefined callbacks */
hdfsdm_channel->CkabCallback = HAL_DFSDM_ChannelCkabCallback;
hdfsdm_channel->ScdCallback = HAL_DFSDM_ChannelScdCallback;
/* Call MSP init function */
if(hdfsdm_channel->MspInitCallback == NULL)
{
hdfsdm_channel->MspInitCallback = HAL_DFSDM_ChannelMspInit;
}
hdfsdm_channel->MspInitCallback(hdfsdm_channel);
#else
/* Call MSP init function */
HAL_DFSDM_ChannelMspInit(hdfsdm_channel);
#endif
/* Update the channel counter */
(*channelCounterPtr)++;
/* Configure output serial clock and enable global DFSDM interface only for first channel */
if(*channelCounterPtr == 1U)
{
assert_param(IS_DFSDM_CHANNEL_OUTPUT_CLOCK(hdfsdm_channel->Init.OutputClock.Selection));
/* Set the output serial clock source */
channel0Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_CKOUTSRC);
channel0Instance->CHCFGR1 |= hdfsdm_channel->Init.OutputClock.Selection;
/* Reset clock divider */
channel0Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_CKOUTDIV);
if(hdfsdm_channel->Init.OutputClock.Activation == ENABLE)
{
assert_param(IS_DFSDM_CHANNEL_OUTPUT_CLOCK_DIVIDER(hdfsdm_channel->Init.OutputClock.Divider));
/* Set the output clock divider */
channel0Instance->CHCFGR1 |= (uint32_t)((hdfsdm_channel->Init.OutputClock.Divider - 1U) <<
DFSDM_CHCFGR1_CKOUTDIV_Pos);
}
/* enable the DFSDM global interface */
channel0Instance->CHCFGR1 |= DFSDM_CHCFGR1_DFSDMEN;
}
/* Set channel input parameters */
hdfsdm_channel->Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_DATPACK | DFSDM_CHCFGR1_DATMPX |
DFSDM_CHCFGR1_CHINSEL);
hdfsdm_channel->Instance->CHCFGR1 |= (hdfsdm_channel->Init.Input.Multiplexer |
hdfsdm_channel->Init.Input.DataPacking |
hdfsdm_channel->Init.Input.Pins);
/* Set serial interface parameters */
hdfsdm_channel->Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_SITP | DFSDM_CHCFGR1_SPICKSEL);
hdfsdm_channel->Instance->CHCFGR1 |= (hdfsdm_channel->Init.SerialInterface.Type |
hdfsdm_channel->Init.SerialInterface.SpiClock);
/* Set analog watchdog parameters */
hdfsdm_channel->Instance->CHAWSCDR &= ~(DFSDM_CHAWSCDR_AWFORD | DFSDM_CHAWSCDR_AWFOSR);
hdfsdm_channel->Instance->CHAWSCDR |= (hdfsdm_channel->Init.Awd.FilterOrder |
((hdfsdm_channel->Init.Awd.Oversampling - 1U) << DFSDM_CHAWSCDR_AWFOSR_Pos));
/* Set channel offset and right bit shift */
hdfsdm_channel->Instance->CHCFGR2 &= ~(DFSDM_CHCFGR2_OFFSET | DFSDM_CHCFGR2_DTRBS);
hdfsdm_channel->Instance->CHCFGR2 |= (((uint32_t) hdfsdm_channel->Init.Offset << DFSDM_CHCFGR2_OFFSET_Pos) |
(hdfsdm_channel->Init.RightBitShift << DFSDM_CHCFGR2_DTRBS_Pos));
/* Enable DFSDM channel */
hdfsdm_channel->Instance->CHCFGR1 |= DFSDM_CHCFGR1_CHEN;
/* Set DFSDM Channel to ready state */
hdfsdm_channel->State = HAL_DFSDM_CHANNEL_STATE_READY;
/* Store channel handle in DFSDM channel handle table */
channelHandleTable[DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance)] = hdfsdm_channel;
return HAL_OK;
}
/**
* @brief De-initialize the DFSDM channel.
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelDeInit(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
__IO uint32_t *channelCounterPtr;
DFSDM_Channel_HandleTypeDef **channelHandleTable;
DFSDM_Channel_TypeDef *channel0Instance;
/* Check DFSDM Channel handle */
if(hdfsdm_channel == NULL)
{
return HAL_ERROR;
}
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
channelCounterPtr = &v_dfsdm1ChannelCounter;
channelHandleTable = a_dfsdm1ChannelHandle;
channel0Instance = DFSDM1_Channel0;
}
else
{
channelCounterPtr = &v_dfsdm2ChannelCounter;
channelHandleTable = a_dfsdm2ChannelHandle;
channel0Instance = DFSDM2_Channel0;
}
#else /* DFSDM2_Channel0 */
channelCounterPtr = &v_dfsdm1ChannelCounter;
channelHandleTable = a_dfsdm1ChannelHandle;
channel0Instance = DFSDM1_Channel0;
#endif /* DFSDM2_Channel0 */
/* Check that channel has not been already deinitialized */
if (channelHandleTable[DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance)] == NULL)
{
return HAL_ERROR;
}
/* Disable the DFSDM channel */
hdfsdm_channel->Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_CHEN);
/* Update the channel counter */
(*channelCounterPtr)--;
/* Disable global DFSDM at deinit of last channel */
if (*channelCounterPtr == 0U)
{
channel0Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_DFSDMEN);
}
/* Call MSP deinit function */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
if(hdfsdm_channel->MspDeInitCallback == NULL)
{
hdfsdm_channel->MspDeInitCallback = HAL_DFSDM_ChannelMspDeInit;
}
hdfsdm_channel->MspDeInitCallback(hdfsdm_channel);
#else
HAL_DFSDM_ChannelMspDeInit(hdfsdm_channel);
#endif
/* Set DFSDM Channel in reset state */
hdfsdm_channel->State = HAL_DFSDM_CHANNEL_STATE_RESET;
/* Reset channel handle in DFSDM channel handle table */
channelHandleTable[DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance)] = (DFSDM_Channel_HandleTypeDef *) NULL;
return HAL_OK;
}
/**
* @brief Initialize the DFSDM channel MSP.
* @param hdfsdm_channel DFSDM channel handle.
* @retval None
*/
__weak void HAL_DFSDM_ChannelMspInit(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_channel);
/* NOTE : This function should not be modified, when the function is needed,
the HAL_DFSDM_ChannelMspInit could be implemented in the user file.
*/
}
/**
* @brief De-initialize the DFSDM channel MSP.
* @param hdfsdm_channel DFSDM channel handle.
* @retval None
*/
__weak void HAL_DFSDM_ChannelMspDeInit(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_channel);
/* NOTE : This function should not be modified, when the function is needed,
the HAL_DFSDM_ChannelMspDeInit could be implemented in the user file.
*/
}
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
/**
* @brief Register a user DFSDM channel callback
* to be used instead of the weak predefined callback.
* @param hdfsdm_channel DFSDM channel handle.
* @param CallbackID ID of the callback to be registered.
* This parameter can be one of the following values:
* @arg @ref HAL_DFSDM_CHANNEL_CKAB_CB_ID clock absence detection callback ID.
* @arg @ref HAL_DFSDM_CHANNEL_SCD_CB_ID short circuit detection callback ID.
* @arg @ref HAL_DFSDM_CHANNEL_MSPINIT_CB_ID MSP init callback ID.
* @arg @ref HAL_DFSDM_CHANNEL_MSPDEINIT_CB_ID MSP de-init callback ID.
* @param pCallback pointer to the callback function.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_Channel_RegisterCallback(DFSDM_Channel_HandleTypeDef *hdfsdm_channel,
HAL_DFSDM_Channel_CallbackIDTypeDef CallbackID,
pDFSDM_Channel_CallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if(pCallback == NULL)
{
/* update return status */
status = HAL_ERROR;
}
else
{
if(HAL_DFSDM_CHANNEL_STATE_READY == hdfsdm_channel->State)
{
switch (CallbackID)
{
case HAL_DFSDM_CHANNEL_CKAB_CB_ID :
hdfsdm_channel->CkabCallback = pCallback;
break;
case HAL_DFSDM_CHANNEL_SCD_CB_ID :
hdfsdm_channel->ScdCallback = pCallback;
break;
case HAL_DFSDM_CHANNEL_MSPINIT_CB_ID :
hdfsdm_channel->MspInitCallback = pCallback;
break;
case HAL_DFSDM_CHANNEL_MSPDEINIT_CB_ID :
hdfsdm_channel->MspDeInitCallback = pCallback;
break;
default :
/* update return status */
status = HAL_ERROR;
break;
}
}
else if(HAL_DFSDM_CHANNEL_STATE_RESET == hdfsdm_channel->State)
{
switch (CallbackID)
{
case HAL_DFSDM_CHANNEL_MSPINIT_CB_ID :
hdfsdm_channel->MspInitCallback = pCallback;
break;
case HAL_DFSDM_CHANNEL_MSPDEINIT_CB_ID :
hdfsdm_channel->MspDeInitCallback = pCallback;
break;
default :
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* update return status */
status = HAL_ERROR;
}
}
return status;
}
/**
* @brief Unregister a user DFSDM channel callback.
* DFSDM channel callback is redirected to the weak predefined callback.
* @param hdfsdm_channel DFSDM channel handle.
* @param CallbackID ID of the callback to be unregistered.
* This parameter can be one of the following values:
* @arg @ref HAL_DFSDM_CHANNEL_CKAB_CB_ID clock absence detection callback ID.
* @arg @ref HAL_DFSDM_CHANNEL_SCD_CB_ID short circuit detection callback ID.
* @arg @ref HAL_DFSDM_CHANNEL_MSPINIT_CB_ID MSP init callback ID.
* @arg @ref HAL_DFSDM_CHANNEL_MSPDEINIT_CB_ID MSP de-init callback ID.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_Channel_UnRegisterCallback(DFSDM_Channel_HandleTypeDef *hdfsdm_channel,
HAL_DFSDM_Channel_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;
if(HAL_DFSDM_CHANNEL_STATE_READY == hdfsdm_channel->State)
{
switch (CallbackID)
{
case HAL_DFSDM_CHANNEL_CKAB_CB_ID :
hdfsdm_channel->CkabCallback = HAL_DFSDM_ChannelCkabCallback;
break;
case HAL_DFSDM_CHANNEL_SCD_CB_ID :
hdfsdm_channel->ScdCallback = HAL_DFSDM_ChannelScdCallback;
break;
case HAL_DFSDM_CHANNEL_MSPINIT_CB_ID :
hdfsdm_channel->MspInitCallback = HAL_DFSDM_ChannelMspInit;
break;
case HAL_DFSDM_CHANNEL_MSPDEINIT_CB_ID :
hdfsdm_channel->MspDeInitCallback = HAL_DFSDM_ChannelMspDeInit;
break;
default :
/* update return status */
status = HAL_ERROR;
break;
}
}
else if(HAL_DFSDM_CHANNEL_STATE_RESET == hdfsdm_channel->State)
{
switch (CallbackID)
{
case HAL_DFSDM_CHANNEL_MSPINIT_CB_ID :
hdfsdm_channel->MspInitCallback = HAL_DFSDM_ChannelMspInit;
break;
case HAL_DFSDM_CHANNEL_MSPDEINIT_CB_ID :
hdfsdm_channel->MspDeInitCallback = HAL_DFSDM_ChannelMspDeInit;
break;
default :
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* update return status */
status = HAL_ERROR;
}
return status;
}
#endif /* USE_HAL_DFSDM_REGISTER_CALLBACKS */
/**
* @}
*/
/** @defgroup DFSDM_Exported_Functions_Group2_Channel Channel operation functions
* @brief Channel operation functions
*
@verbatim
==============================================================================
##### Channel operation functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Manage clock absence detector feature.
(+) Manage short circuit detector feature.
(+) Get analog watchdog value.
(+) Modify offset value.
@endverbatim
* @{
*/
/**
* @brief This function allows to start clock absence detection in polling mode.
* @note Same mode has to be used for all channels.
* @note If clock is not available on this channel during 5 seconds,
* clock absence detection will not be activated and function
* will return HAL_TIMEOUT error.
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelCkabStart(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t channel;
uint32_t tickstart;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Get channel number from channel instance */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
/* Get timeout */
tickstart = HAL_GetTick();
/* Clear clock absence flag */
while ((((filter0Instance->FLTISR & DFSDM_FLTISR_CKABF) >> (DFSDM_FLTISR_CKABF_Pos + channel)) & 1U) != 0U)
{
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRCKABF_Pos + channel));
/* Check the Timeout */
if((HAL_GetTick()-tickstart) > DFSDM_CKAB_TIMEOUT)
{
/* Set timeout status */
status = HAL_TIMEOUT;
break;
}
}
if(status == HAL_OK)
{
/* Start clock absence detection */
hdfsdm_channel->Instance->CHCFGR1 |= DFSDM_CHCFGR1_CKABEN;
}
}
/* Return function status */
return status;
}
/**
* @brief This function allows to poll for the clock absence detection.
* @param hdfsdm_channel DFSDM channel handle.
* @param Timeout Timeout value in milliseconds.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelPollForCkab(const DFSDM_Channel_HandleTypeDef *hdfsdm_channel,
uint32_t Timeout)
{
uint32_t tickstart;
uint32_t channel;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
return HAL_ERROR;
}
else
{
/* Get channel number from channel instance */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait clock absence detection */
while ((((filter0Instance->FLTISR & DFSDM_FLTISR_CKABF) >> (DFSDM_FLTISR_CKABF_Pos + channel)) & 1U) == 0U)
{
/* Check the Timeout */
if(Timeout != HAL_MAX_DELAY)
{
if(((HAL_GetTick()-tickstart) > Timeout) || (Timeout == 0U))
{
/* Return timeout status */
return HAL_TIMEOUT;
}
}
}
/* Clear clock absence detection flag */
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRCKABF_Pos + channel));
/* Return function status */
return HAL_OK;
}
}
/**
* @brief This function allows to stop clock absence detection in polling mode.
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelCkabStop(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t channel;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop clock absence detection */
hdfsdm_channel->Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_CKABEN);
/* Clear clock absence flag */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRCKABF_Pos + channel));
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start clock absence detection in interrupt mode.
* @note Same mode has to be used for all channels.
* @note If clock is not available on this channel during 5 seconds,
* clock absence detection will not be activated and function
* will return HAL_TIMEOUT error.
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelCkabStart_IT(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t channel;
uint32_t tickstart;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Get channel number from channel instance */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
/* Get timeout */
tickstart = HAL_GetTick();
/* Clear clock absence flag */
while ((((filter0Instance->FLTISR & DFSDM_FLTISR_CKABF) >> (DFSDM_FLTISR_CKABF_Pos + channel)) & 1U) != 0U)
{
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRCKABF_Pos + channel));
/* Check the Timeout */
if((HAL_GetTick()-tickstart) > DFSDM_CKAB_TIMEOUT)
{
/* Set timeout status */
status = HAL_TIMEOUT;
break;
}
}
if(status == HAL_OK)
{
/* Activate clock absence detection interrupt */
filter0Instance->FLTCR2 |= DFSDM_FLTCR2_CKABIE;
/* Start clock absence detection */
hdfsdm_channel->Instance->CHCFGR1 |= DFSDM_CHCFGR1_CKABEN;
}
}
/* Return function status */
return status;
}
/**
* @brief Clock absence detection callback.
* @param hdfsdm_channel DFSDM channel handle.
* @retval None
*/
__weak void HAL_DFSDM_ChannelCkabCallback(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_channel);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_ChannelCkabCallback could be implemented in the user file
*/
}
/**
* @brief This function allows to stop clock absence detection in interrupt mode.
* @note Interrupt will be disabled for all channels
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelCkabStop_IT(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t channel;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop clock absence detection */
hdfsdm_channel->Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_CKABEN);
/* Clear clock absence flag */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRCKABF_Pos + channel));
/* Disable clock absence detection interrupt */
filter0Instance->FLTCR2 &= ~(DFSDM_FLTCR2_CKABIE);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start short circuit detection in polling mode.
* @note Same mode has to be used for all channels
* @param hdfsdm_channel DFSDM channel handle.
* @param Threshold Short circuit detector threshold.
* This parameter must be a number between Min_Data = 0 and Max_Data = 255.
* @param BreakSignal Break signals assigned to short circuit event.
* This parameter can be a values combination of @ref DFSDM_BreakSignals.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelScdStart(DFSDM_Channel_HandleTypeDef *hdfsdm_channel,
uint32_t Threshold,
uint32_t BreakSignal)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
assert_param(IS_DFSDM_CHANNEL_SCD_THRESHOLD(Threshold));
assert_param(IS_DFSDM_BREAK_SIGNALS(BreakSignal));
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Configure threshold and break signals */
hdfsdm_channel->Instance->CHAWSCDR &= ~(DFSDM_CHAWSCDR_BKSCD | DFSDM_CHAWSCDR_SCDT);
hdfsdm_channel->Instance->CHAWSCDR |= ((BreakSignal << DFSDM_CHAWSCDR_BKSCD_Pos) | \
Threshold);
/* Start short circuit detection */
hdfsdm_channel->Instance->CHCFGR1 |= DFSDM_CHCFGR1_SCDEN;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to poll for the short circuit detection.
* @param hdfsdm_channel DFSDM channel handle.
* @param Timeout Timeout value in milliseconds.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelPollForScd(const DFSDM_Channel_HandleTypeDef *hdfsdm_channel,
uint32_t Timeout)
{
uint32_t tickstart;
uint32_t channel;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
return HAL_ERROR;
}
else
{
/* Get channel number from channel instance */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait short circuit detection */
while (((filter0Instance->FLTISR & DFSDM_FLTISR_SCDF) >> (DFSDM_FLTISR_SCDF_Pos + channel)) == 0U)
{
/* Check the Timeout */
if(Timeout != HAL_MAX_DELAY)
{
if(((HAL_GetTick()-tickstart) > Timeout) || (Timeout == 0U))
{
/* Return timeout status */
return HAL_TIMEOUT;
}
}
}
/* Clear short circuit detection flag */
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRSCDF_Pos + channel));
/* Return function status */
return HAL_OK;
}
}
/**
* @brief This function allows to stop short circuit detection in polling mode.
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelScdStop(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t channel;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop short circuit detection */
hdfsdm_channel->Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_SCDEN);
/* Clear short circuit detection flag */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRSCDF_Pos + channel));
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start short circuit detection in interrupt mode.
* @note Same mode has to be used for all channels
* @param hdfsdm_channel DFSDM channel handle.
* @param Threshold Short circuit detector threshold.
* This parameter must be a number between Min_Data = 0 and Max_Data = 255.
* @param BreakSignal Break signals assigned to short circuit event.
* This parameter can be a values combination of @ref DFSDM_BreakSignals.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelScdStart_IT(DFSDM_Channel_HandleTypeDef *hdfsdm_channel,
uint32_t Threshold,
uint32_t BreakSignal)
{
HAL_StatusTypeDef status = HAL_OK;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
assert_param(IS_DFSDM_CHANNEL_SCD_THRESHOLD(Threshold));
assert_param(IS_DFSDM_BREAK_SIGNALS(BreakSignal));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Activate short circuit detection interrupt */
filter0Instance->FLTCR2 |= DFSDM_FLTCR2_SCDIE;
/* Configure threshold and break signals */
hdfsdm_channel->Instance->CHAWSCDR &= ~(DFSDM_CHAWSCDR_BKSCD | DFSDM_CHAWSCDR_SCDT);
hdfsdm_channel->Instance->CHAWSCDR |= ((BreakSignal << DFSDM_CHAWSCDR_BKSCD_Pos) | \
Threshold);
/* Start short circuit detection */
hdfsdm_channel->Instance->CHCFGR1 |= DFSDM_CHCFGR1_SCDEN;
}
/* Return function status */
return status;
}
/**
* @brief Short circuit detection callback.
* @param hdfsdm_channel DFSDM channel handle.
* @retval None
*/
__weak void HAL_DFSDM_ChannelScdCallback(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_channel);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_ChannelScdCallback could be implemented in the user file
*/
}
/**
* @brief This function allows to stop short circuit detection in interrupt mode.
* @note Interrupt will be disabled for all channels
* @param hdfsdm_channel DFSDM channel handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelScdStop_IT(DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
HAL_StatusTypeDef status = HAL_OK;
uint32_t channel;
DFSDM_Filter_TypeDef *filter0Instance;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_CHANNEL_INSTANCE(hdfsdm_channel->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop short circuit detection */
hdfsdm_channel->Instance->CHCFGR1 &= ~(DFSDM_CHCFGR1_SCDEN);
/* Clear short circuit detection flag */
channel = DFSDM_GetChannelFromInstance(hdfsdm_channel->Instance);
filter0Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRSCDF_Pos + channel));
/* Disable short circuit detection interrupt */
filter0Instance->FLTCR2 &= ~(DFSDM_FLTCR2_SCDIE);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to get channel analog watchdog value.
* @param hdfsdm_channel DFSDM channel handle.
* @retval Channel analog watchdog value.
*/
int16_t HAL_DFSDM_ChannelGetAwdValue(const DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
return (int16_t) hdfsdm_channel->Instance->CHWDATAR;
}
/**
* @brief This function allows to modify channel offset value.
* @param hdfsdm_channel DFSDM channel handle.
* @param Offset DFSDM channel offset.
* This parameter must be a number between Min_Data = -8388608 and Max_Data = 8388607.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_ChannelModifyOffset(DFSDM_Channel_HandleTypeDef *hdfsdm_channel,
int32_t Offset)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_CHANNEL_ALL_INSTANCE(hdfsdm_channel->Instance));
assert_param(IS_DFSDM_CHANNEL_OFFSET(Offset));
/* Check DFSDM channel state */
if(hdfsdm_channel->State != HAL_DFSDM_CHANNEL_STATE_READY)
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Modify channel offset */
hdfsdm_channel->Instance->CHCFGR2 &= ~(DFSDM_CHCFGR2_OFFSET);
hdfsdm_channel->Instance->CHCFGR2 |= ((uint32_t) Offset << DFSDM_CHCFGR2_OFFSET_Pos);
}
/* Return function status */
return status;
}
/**
* @}
*/
/** @defgroup DFSDM_Exported_Functions_Group3_Channel Channel state function
* @brief Channel state function
*
@verbatim
==============================================================================
##### Channel state function #####
==============================================================================
[..] This section provides function allowing to:
(+) Get channel handle state.
@endverbatim
* @{
*/
/**
* @brief This function allows to get the current DFSDM channel handle state.
* @param hdfsdm_channel DFSDM channel handle.
* @retval DFSDM channel state.
*/
HAL_DFSDM_Channel_StateTypeDef HAL_DFSDM_ChannelGetState(const DFSDM_Channel_HandleTypeDef *hdfsdm_channel)
{
/* Return DFSDM channel handle state */
return hdfsdm_channel->State;
}
/**
* @}
*/
/** @defgroup DFSDM_Exported_Functions_Group1_Filter Filter initialization and de-initialization functions
* @brief Filter initialization and de-initialization functions
*
@verbatim
==============================================================================
##### Filter initialization and de-initialization functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Initialize the DFSDM filter.
(+) De-initialize the DFSDM filter.
@endverbatim
* @{
*/
/**
* @brief Initialize the DFSDM filter according to the specified parameters
* in the DFSDM_FilterInitTypeDef structure and initialize the associated handle.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInit(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
const DFSDM_Filter_TypeDef *filter0Instance;
/* Check DFSDM Channel handle */
if(hdfsdm_filter == NULL)
{
return HAL_ERROR;
}
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(IS_DFSDM_FILTER_REG_TRIGGER(hdfsdm_filter->Init.RegularParam.Trigger));
assert_param(IS_FUNCTIONAL_STATE(hdfsdm_filter->Init.RegularParam.FastMode));
assert_param(IS_FUNCTIONAL_STATE(hdfsdm_filter->Init.RegularParam.DmaMode));
assert_param(IS_DFSDM_FILTER_INJ_TRIGGER(hdfsdm_filter->Init.InjectedParam.Trigger));
assert_param(IS_FUNCTIONAL_STATE(hdfsdm_filter->Init.InjectedParam.ScanMode));
assert_param(IS_FUNCTIONAL_STATE(hdfsdm_filter->Init.InjectedParam.DmaMode));
assert_param(IS_DFSDM_FILTER_SINC_ORDER(hdfsdm_filter->Init.FilterParam.SincOrder));
assert_param(IS_DFSDM_FILTER_OVS_RATIO(hdfsdm_filter->Init.FilterParam.Oversampling));
assert_param(IS_DFSDM_FILTER_INTEGRATOR_OVS_RATIO(hdfsdm_filter->Init.FilterParam.IntOversampling));
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_FILTER_INSTANCE(hdfsdm_filter->Instance))
{
filter0Instance = DFSDM1_Filter0;
}
else
{
filter0Instance = DFSDM2_Filter0;
}
#else /* DFSDM2_Channel0 */
filter0Instance = DFSDM1_Filter0;
#endif /* DFSDM2_Channel0 */
/* Check parameters compatibility */
if ((hdfsdm_filter->Instance == filter0Instance) &&
((hdfsdm_filter->Init.RegularParam.Trigger == DFSDM_FILTER_SYNC_TRIGGER) ||
(hdfsdm_filter->Init.InjectedParam.Trigger == DFSDM_FILTER_SYNC_TRIGGER)))
{
return HAL_ERROR;
}
/* Initialize DFSDM filter variables with default values */
hdfsdm_filter->RegularContMode = DFSDM_CONTINUOUS_CONV_OFF;
hdfsdm_filter->InjectedChannelsNbr = 1;
hdfsdm_filter->InjConvRemaining = 1;
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_NONE;
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
/* Reset callback pointers to the weak predefined callbacks */
hdfsdm_filter->AwdCallback = HAL_DFSDM_FilterAwdCallback;
hdfsdm_filter->RegConvCpltCallback = HAL_DFSDM_FilterRegConvCpltCallback;
hdfsdm_filter->RegConvHalfCpltCallback = HAL_DFSDM_FilterRegConvHalfCpltCallback;
hdfsdm_filter->InjConvCpltCallback = HAL_DFSDM_FilterInjConvCpltCallback;
hdfsdm_filter->InjConvHalfCpltCallback = HAL_DFSDM_FilterInjConvHalfCpltCallback;
hdfsdm_filter->ErrorCallback = HAL_DFSDM_FilterErrorCallback;
/* Call MSP init function */
if(hdfsdm_filter->MspInitCallback == NULL)
{
hdfsdm_filter->MspInitCallback = HAL_DFSDM_FilterMspInit;
}
hdfsdm_filter->MspInitCallback(hdfsdm_filter);
#else
/* Call MSP init function */
HAL_DFSDM_FilterMspInit(hdfsdm_filter);
#endif
/* Set regular parameters */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_RSYNC);
if(hdfsdm_filter->Init.RegularParam.FastMode == ENABLE)
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_FAST;
}
else
{
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_FAST);
}
if(hdfsdm_filter->Init.RegularParam.DmaMode == ENABLE)
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_RDMAEN;
}
else
{
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_RDMAEN);
}
/* Set injected parameters */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_JSYNC | DFSDM_FLTCR1_JEXTEN | DFSDM_FLTCR1_JEXTSEL);
if(hdfsdm_filter->Init.InjectedParam.Trigger == DFSDM_FILTER_EXT_TRIGGER)
{
assert_param(IS_DFSDM_FILTER_EXT_TRIG(hdfsdm_filter->Init.InjectedParam.ExtTrigger));
assert_param(IS_DFSDM_FILTER_EXT_TRIG_EDGE(hdfsdm_filter->Init.InjectedParam.ExtTriggerEdge));
hdfsdm_filter->Instance->FLTCR1 |= (hdfsdm_filter->Init.InjectedParam.ExtTrigger);
}
if(hdfsdm_filter->Init.InjectedParam.ScanMode == ENABLE)
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_JSCAN;
}
else
{
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_JSCAN);
}
if(hdfsdm_filter->Init.InjectedParam.DmaMode == ENABLE)
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_JDMAEN;
}
else
{
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_JDMAEN);
}
/* Set filter parameters */
hdfsdm_filter->Instance->FLTFCR &= ~(DFSDM_FLTFCR_FORD | DFSDM_FLTFCR_FOSR | DFSDM_FLTFCR_IOSR);
hdfsdm_filter->Instance->FLTFCR |= (hdfsdm_filter->Init.FilterParam.SincOrder |
((hdfsdm_filter->Init.FilterParam.Oversampling - 1U) << DFSDM_FLTFCR_FOSR_Pos) |
(hdfsdm_filter->Init.FilterParam.IntOversampling - 1U));
/* Store regular and injected triggers and injected scan mode*/
hdfsdm_filter->RegularTrigger = hdfsdm_filter->Init.RegularParam.Trigger;
hdfsdm_filter->InjectedTrigger = hdfsdm_filter->Init.InjectedParam.Trigger;
hdfsdm_filter->ExtTriggerEdge = hdfsdm_filter->Init.InjectedParam.ExtTriggerEdge;
hdfsdm_filter->InjectedScanMode = hdfsdm_filter->Init.InjectedParam.ScanMode;
/* Enable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_DFEN;
/* Set DFSDM filter to ready state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_READY;
return HAL_OK;
}
/**
* @brief De-initializes the DFSDM filter.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_FilterDeInit(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Check DFSDM filter handle */
if(hdfsdm_filter == NULL)
{
return HAL_ERROR;
}
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Disable the DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_DFEN);
/* Call MSP deinit function */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
if(hdfsdm_filter->MspDeInitCallback == NULL)
{
hdfsdm_filter->MspDeInitCallback = HAL_DFSDM_FilterMspDeInit;
}
hdfsdm_filter->MspDeInitCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterMspDeInit(hdfsdm_filter);
#endif
/* Set DFSDM filter in reset state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_RESET;
return HAL_OK;
}
/**
* @brief Initializes the DFSDM filter MSP.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
__weak void HAL_DFSDM_FilterMspInit(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
/* NOTE : This function should not be modified, when the function is needed,
the HAL_DFSDM_FilterMspInit could be implemented in the user file.
*/
}
/**
* @brief De-initializes the DFSDM filter MSP.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
__weak void HAL_DFSDM_FilterMspDeInit(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
/* NOTE : This function should not be modified, when the function is needed,
the HAL_DFSDM_FilterMspDeInit could be implemented in the user file.
*/
}
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
/**
* @brief Register a user DFSDM filter callback
* to be used instead of the weak predefined callback.
* @param hdfsdm_filter DFSDM filter handle.
* @param CallbackID ID of the callback to be registered.
* This parameter can be one of the following values:
* @arg @ref HAL_DFSDM_FILTER_REGCONV_COMPLETE_CB_ID regular conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_REGCONV_HALFCOMPLETE_CB_ID half regular conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_INJCONV_COMPLETE_CB_ID injected conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_INJCONV_HALFCOMPLETE_CB_ID half injected conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_ERROR_CB_ID error callback ID.
* @arg @ref HAL_DFSDM_FILTER_MSPINIT_CB_ID MSP init callback ID.
* @arg @ref HAL_DFSDM_FILTER_MSPDEINIT_CB_ID MSP de-init callback ID.
* @param pCallback pointer to the callback function.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_Filter_RegisterCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
HAL_DFSDM_Filter_CallbackIDTypeDef CallbackID,
pDFSDM_Filter_CallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if(pCallback == NULL)
{
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
else
{
if(HAL_DFSDM_FILTER_STATE_READY == hdfsdm_filter->State)
{
switch (CallbackID)
{
case HAL_DFSDM_FILTER_REGCONV_COMPLETE_CB_ID :
hdfsdm_filter->RegConvCpltCallback = pCallback;
break;
case HAL_DFSDM_FILTER_REGCONV_HALFCOMPLETE_CB_ID :
hdfsdm_filter->RegConvHalfCpltCallback = pCallback;
break;
case HAL_DFSDM_FILTER_INJCONV_COMPLETE_CB_ID :
hdfsdm_filter->InjConvCpltCallback = pCallback;
break;
case HAL_DFSDM_FILTER_INJCONV_HALFCOMPLETE_CB_ID :
hdfsdm_filter->InjConvHalfCpltCallback = pCallback;
break;
case HAL_DFSDM_FILTER_ERROR_CB_ID :
hdfsdm_filter->ErrorCallback = pCallback;
break;
case HAL_DFSDM_FILTER_MSPINIT_CB_ID :
hdfsdm_filter->MspInitCallback = pCallback;
break;
case HAL_DFSDM_FILTER_MSPDEINIT_CB_ID :
hdfsdm_filter->MspDeInitCallback = pCallback;
break;
default :
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else if(HAL_DFSDM_FILTER_STATE_RESET == hdfsdm_filter->State)
{
switch (CallbackID)
{
case HAL_DFSDM_FILTER_MSPINIT_CB_ID :
hdfsdm_filter->MspInitCallback = pCallback;
break;
case HAL_DFSDM_FILTER_MSPDEINIT_CB_ID :
hdfsdm_filter->MspDeInitCallback = pCallback;
break;
default :
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
}
return status;
}
/**
* @brief Unregister a user DFSDM filter callback.
* DFSDM filter callback is redirected to the weak predefined callback.
* @param hdfsdm_filter DFSDM filter handle.
* @param CallbackID ID of the callback to be unregistered.
* This parameter can be one of the following values:
* @arg @ref HAL_DFSDM_FILTER_REGCONV_COMPLETE_CB_ID regular conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_REGCONV_HALFCOMPLETE_CB_ID half regular conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_INJCONV_COMPLETE_CB_ID injected conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_INJCONV_HALFCOMPLETE_CB_ID half injected conversion complete callback ID.
* @arg @ref HAL_DFSDM_FILTER_ERROR_CB_ID error callback ID.
* @arg @ref HAL_DFSDM_FILTER_MSPINIT_CB_ID MSP init callback ID.
* @arg @ref HAL_DFSDM_FILTER_MSPDEINIT_CB_ID MSP de-init callback ID.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_Filter_UnRegisterCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
HAL_DFSDM_Filter_CallbackIDTypeDef CallbackID)
{
HAL_StatusTypeDef status = HAL_OK;
if(HAL_DFSDM_FILTER_STATE_READY == hdfsdm_filter->State)
{
switch (CallbackID)
{
case HAL_DFSDM_FILTER_REGCONV_COMPLETE_CB_ID :
hdfsdm_filter->RegConvCpltCallback = HAL_DFSDM_FilterRegConvCpltCallback;
break;
case HAL_DFSDM_FILTER_REGCONV_HALFCOMPLETE_CB_ID :
hdfsdm_filter->RegConvHalfCpltCallback = HAL_DFSDM_FilterRegConvHalfCpltCallback;
break;
case HAL_DFSDM_FILTER_INJCONV_COMPLETE_CB_ID :
hdfsdm_filter->InjConvCpltCallback = HAL_DFSDM_FilterInjConvCpltCallback;
break;
case HAL_DFSDM_FILTER_INJCONV_HALFCOMPLETE_CB_ID :
hdfsdm_filter->InjConvHalfCpltCallback = HAL_DFSDM_FilterInjConvHalfCpltCallback;
break;
case HAL_DFSDM_FILTER_ERROR_CB_ID :
hdfsdm_filter->ErrorCallback = HAL_DFSDM_FilterErrorCallback;
break;
case HAL_DFSDM_FILTER_MSPINIT_CB_ID :
hdfsdm_filter->MspInitCallback = HAL_DFSDM_FilterMspInit;
break;
case HAL_DFSDM_FILTER_MSPDEINIT_CB_ID :
hdfsdm_filter->MspDeInitCallback = HAL_DFSDM_FilterMspDeInit;
break;
default :
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else if(HAL_DFSDM_FILTER_STATE_RESET == hdfsdm_filter->State)
{
switch (CallbackID)
{
case HAL_DFSDM_FILTER_MSPINIT_CB_ID :
hdfsdm_filter->MspInitCallback = HAL_DFSDM_FilterMspInit;
break;
case HAL_DFSDM_FILTER_MSPDEINIT_CB_ID :
hdfsdm_filter->MspDeInitCallback = HAL_DFSDM_FilterMspDeInit;
break;
default :
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
break;
}
}
else
{
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
return status;
}
/**
* @brief Register a user DFSDM filter analog watchdog callback
* to be used instead of the weak predefined callback.
* @param hdfsdm_filter DFSDM filter handle.
* @param pCallback pointer to the DFSDM filter analog watchdog callback function.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_Filter_RegisterAwdCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
pDFSDM_Filter_AwdCallbackTypeDef pCallback)
{
HAL_StatusTypeDef status = HAL_OK;
if(pCallback == NULL)
{
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
else
{
if(HAL_DFSDM_FILTER_STATE_READY == hdfsdm_filter->State)
{
hdfsdm_filter->AwdCallback = pCallback;
}
else
{
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
}
return status;
}
/**
* @brief Unregister a user DFSDM filter analog watchdog callback.
* DFSDM filter AWD callback is redirected to the weak predefined callback.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status.
*/
HAL_StatusTypeDef HAL_DFSDM_Filter_UnRegisterAwdCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
if(HAL_DFSDM_FILTER_STATE_READY == hdfsdm_filter->State)
{
hdfsdm_filter->AwdCallback = HAL_DFSDM_FilterAwdCallback;
}
else
{
/* update the error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INVALID_CALLBACK;
/* update return status */
status = HAL_ERROR;
}
return status;
}
#endif /* USE_HAL_DFSDM_REGISTER_CALLBACKS */
/**
* @}
*/
/** @defgroup DFSDM_Exported_Functions_Group2_Filter Filter control functions
* @brief Filter control functions
*
@verbatim
==============================================================================
##### Filter control functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Select channel and enable/disable continuous mode for regular conversion.
(+) Select channels for injected conversion.
@endverbatim
* @{
*/
/**
* @brief This function allows to select channel and to enable/disable
* continuous mode for regular conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Channel for regular conversion.
* This parameter can be a value of @ref DFSDM_Channel_Selection.
* @param ContinuousMode Enable/disable continuous mode for regular conversion.
* This parameter can be a value of @ref DFSDM_ContinuousMode.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterConfigRegChannel(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t Channel,
uint32_t ContinuousMode)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(IS_DFSDM_REGULAR_CHANNEL(Channel));
assert_param(IS_DFSDM_CONTINUOUS_MODE(ContinuousMode));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_RESET) &&
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_ERROR))
{
/* Configure channel and continuous mode for regular conversion */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_RCH | DFSDM_FLTCR1_RCONT);
if(ContinuousMode == DFSDM_CONTINUOUS_CONV_ON)
{
hdfsdm_filter->Instance->FLTCR1 |= (uint32_t) (((Channel & DFSDM_MSB_MASK) << DFSDM_FLTCR1_MSB_RCH_OFFSET) |
DFSDM_FLTCR1_RCONT);
}
else
{
hdfsdm_filter->Instance->FLTCR1 |= (uint32_t) ((Channel & DFSDM_MSB_MASK) << DFSDM_FLTCR1_MSB_RCH_OFFSET);
}
/* Store continuous mode information */
hdfsdm_filter->RegularContMode = ContinuousMode;
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to select channels for injected conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Channels for injected conversion.
* This parameter can be a values combination of @ref DFSDM_Channel_Selection.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterConfigInjChannel(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t Channel)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(IS_DFSDM_INJECTED_CHANNEL(Channel));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_RESET) &&
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_ERROR))
{
/* Configure channel for injected conversion */
hdfsdm_filter->Instance->FLTJCHGR = (uint32_t) (Channel & DFSDM_LSB_MASK);
/* Store number of injected channels */
hdfsdm_filter->InjectedChannelsNbr = DFSDM_GetInjChannelsNbr(Channel);
/* Update number of injected channels remaining */
hdfsdm_filter->InjConvRemaining = (hdfsdm_filter->InjectedScanMode == ENABLE) ? \
hdfsdm_filter->InjectedChannelsNbr : 1U;
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @}
*/
/** @defgroup DFSDM_Exported_Functions_Group3_Filter Filter operation functions
* @brief Filter operation functions
*
@verbatim
==============================================================================
##### Filter operation functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Start conversion of regular/injected channel.
(+) Poll for the end of regular/injected conversion.
(+) Stop conversion of regular/injected channel.
(+) Start conversion of regular/injected channel and enable interrupt.
(+) Call the callback functions at the end of regular/injected conversions.
(+) Stop conversion of regular/injected channel and disable interrupt.
(+) Start conversion of regular/injected channel and enable DMA transfer.
(+) Stop conversion of regular/injected channel and disable DMA transfer.
(+) Start analog watchdog and enable interrupt.
(+) Call the callback function when analog watchdog occurs.
(+) Stop analog watchdog and disable interrupt.
(+) Start extreme detector.
(+) Stop extreme detector.
(+) Get result of regular channel conversion.
(+) Get result of injected channel conversion.
(+) Get extreme detector maximum and minimum values.
(+) Get conversion time.
(+) Handle DFSDM interrupt request.
@endverbatim
* @{
*/
/**
* @brief This function allows to start regular conversion in polling mode.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if injected conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterRegularStart(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ))
{
/* Start regular conversion */
DFSDM_RegConvStart(hdfsdm_filter);
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to poll for the end of regular conversion.
* @note This function should be called only if regular conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @param Timeout Timeout value in milliseconds.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterPollForRegConversion(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t Timeout)
{
uint32_t tickstart;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
return HAL_ERROR;
}
else
{
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait end of regular conversion */
while((hdfsdm_filter->Instance->FLTISR & DFSDM_FLTISR_REOCF) != DFSDM_FLTISR_REOCF)
{
/* Check the Timeout */
if(Timeout != HAL_MAX_DELAY)
{
if(((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
/* Return timeout status */
return HAL_TIMEOUT;
}
}
}
/* Check if overrun occurs */
if((hdfsdm_filter->Instance->FLTISR & DFSDM_FLTISR_ROVRF) == DFSDM_FLTISR_ROVRF)
{
/* Update error code and call error callback */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_REGULAR_OVERRUN;
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->ErrorCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterErrorCallback(hdfsdm_filter);
#endif
/* Clear regular overrun flag */
hdfsdm_filter->Instance->FLTICR = DFSDM_FLTICR_CLRROVRF;
}
/* Update DFSDM filter state only if not continuous conversion and SW trigger */
if((hdfsdm_filter->RegularContMode == DFSDM_CONTINUOUS_CONV_OFF) && \
(hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER))
{
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG) ? \
HAL_DFSDM_FILTER_STATE_READY : HAL_DFSDM_FILTER_STATE_INJ;
}
/* Return function status */
return HAL_OK;
}
}
/**
* @brief This function allows to stop regular conversion in polling mode.
* @note This function should be called only if regular conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterRegularStop(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop regular conversion */
DFSDM_RegConvStop(hdfsdm_filter);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start regular conversion in interrupt mode.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if injected conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterRegularStart_IT(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ))
{
/* Enable interrupts for regular conversions */
hdfsdm_filter->Instance->FLTCR2 |= (DFSDM_FLTCR2_REOCIE | DFSDM_FLTCR2_ROVRIE);
/* Start regular conversion */
DFSDM_RegConvStart(hdfsdm_filter);
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to stop regular conversion in interrupt mode.
* @note This function should be called only if regular conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterRegularStop_IT(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Disable interrupts for regular conversions */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_REOCIE | DFSDM_FLTCR2_ROVRIE);
/* Stop regular conversion */
DFSDM_RegConvStop(hdfsdm_filter);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start regular conversion in DMA mode.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if injected conversion is ongoing.
* Please note that data on buffer will contain signed regular conversion
* value on 24 most significant bits and corresponding channel on 3 least
* significant bits.
* @param hdfsdm_filter DFSDM filter handle.
* @param pData The destination buffer address.
* @param Length The length of data to be transferred from DFSDM filter to memory.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterRegularStart_DMA(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
int32_t *pData,
uint32_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check destination address and length */
if((pData == NULL) || (Length == 0U))
{
status = HAL_ERROR;
}
/* Check that DMA is enabled for regular conversion */
else if((hdfsdm_filter->Instance->FLTCR1 & DFSDM_FLTCR1_RDMAEN) != DFSDM_FLTCR1_RDMAEN)
{
status = HAL_ERROR;
}
/* Check parameters compatibility */
else if((hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->RegularContMode == DFSDM_CONTINUOUS_CONV_OFF) && \
(hdfsdm_filter->hdmaReg->Init.Mode == DMA_NORMAL) && \
(Length != 1U))
{
status = HAL_ERROR;
}
else if((hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->RegularContMode == DFSDM_CONTINUOUS_CONV_OFF) && \
(hdfsdm_filter->hdmaReg->Init.Mode == DMA_CIRCULAR))
{
status = HAL_ERROR;
}
/* Check DFSDM filter state */
else if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ))
{
/* Set callbacks on DMA handler */
hdfsdm_filter->hdmaReg->XferCpltCallback = DFSDM_DMARegularConvCplt;
hdfsdm_filter->hdmaReg->XferErrorCallback = DFSDM_DMAError;
hdfsdm_filter->hdmaReg->XferHalfCpltCallback = (hdfsdm_filter->hdmaReg->Init.Mode == DMA_CIRCULAR) ?\
DFSDM_DMARegularHalfConvCplt : NULL;
/* Start DMA in interrupt mode */
if(HAL_DMA_Start_IT(hdfsdm_filter->hdmaReg, (uint32_t)&hdfsdm_filter->Instance->FLTRDATAR, \
(uint32_t) pData, Length) != HAL_OK)
{
/* Set DFSDM filter in error state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_ERROR;
status = HAL_ERROR;
}
else
{
/* Start regular conversion */
DFSDM_RegConvStart(hdfsdm_filter);
}
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start regular conversion in DMA mode and to get
* only the 16 most significant bits of conversion.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if injected conversion is ongoing.
* Please note that data on buffer will contain signed 16 most significant
* bits of regular conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @param pData The destination buffer address.
* @param Length The length of data to be transferred from DFSDM filter to memory.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterRegularMsbStart_DMA(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
int16_t *pData,
uint32_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check destination address and length */
if((pData == NULL) || (Length == 0U))
{
status = HAL_ERROR;
}
/* Check that DMA is enabled for regular conversion */
else if((hdfsdm_filter->Instance->FLTCR1 & DFSDM_FLTCR1_RDMAEN) != DFSDM_FLTCR1_RDMAEN)
{
status = HAL_ERROR;
}
/* Check parameters compatibility */
else if((hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->RegularContMode == DFSDM_CONTINUOUS_CONV_OFF) && \
(hdfsdm_filter->hdmaReg->Init.Mode == DMA_NORMAL) && \
(Length != 1U))
{
status = HAL_ERROR;
}
else if((hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->RegularContMode == DFSDM_CONTINUOUS_CONV_OFF) && \
(hdfsdm_filter->hdmaReg->Init.Mode == DMA_CIRCULAR))
{
status = HAL_ERROR;
}
/* Check DFSDM filter state */
else if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ))
{
/* Set callbacks on DMA handler */
hdfsdm_filter->hdmaReg->XferCpltCallback = DFSDM_DMARegularConvCplt;
hdfsdm_filter->hdmaReg->XferErrorCallback = DFSDM_DMAError;
hdfsdm_filter->hdmaReg->XferHalfCpltCallback = (hdfsdm_filter->hdmaReg->Init.Mode == DMA_CIRCULAR) ?\
DFSDM_DMARegularHalfConvCplt : NULL;
/* Start DMA in interrupt mode */
if(HAL_DMA_Start_IT(hdfsdm_filter->hdmaReg, (uint32_t)(&hdfsdm_filter->Instance->FLTRDATAR) + 2U, \
(uint32_t) pData, Length) != HAL_OK)
{
/* Set DFSDM filter in error state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_ERROR;
status = HAL_ERROR;
}
else
{
/* Start regular conversion */
DFSDM_RegConvStart(hdfsdm_filter);
}
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to stop regular conversion in DMA mode.
* @note This function should be called only if regular conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterRegularStop_DMA(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop current DMA transfer */
if(HAL_DMA_Abort(hdfsdm_filter->hdmaReg) != HAL_OK)
{
/* Set DFSDM filter in error state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_ERROR;
status = HAL_ERROR;
}
else
{
/* Stop regular conversion */
DFSDM_RegConvStop(hdfsdm_filter);
}
}
/* Return function status */
return status;
}
/**
* @brief This function allows to get regular conversion value.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Corresponding channel of regular conversion.
* @retval Regular conversion value
*/
int32_t HAL_DFSDM_FilterGetRegularValue(const DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t *Channel)
{
uint32_t reg;
int32_t value;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(Channel != (void *)0);
/* Get value of data register for regular channel */
reg = hdfsdm_filter->Instance->FLTRDATAR;
/* Extract channel and regular conversion value */
*Channel = (reg & DFSDM_FLTRDATAR_RDATACH);
/* Regular conversion value is a signed value located on 24 MSB of register */
/* So after applying a mask on these bits we have to perform a division by 256 (2 raised to the power of 8) */
reg &= DFSDM_FLTRDATAR_RDATA;
value = ((int32_t)reg) / 256;
/* return regular conversion value */
return value;
}
/**
* @brief This function allows to start injected conversion in polling mode.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if regular conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInjectedStart(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG))
{
/* Start injected conversion */
DFSDM_InjConvStart(hdfsdm_filter);
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to poll for the end of injected conversion.
* @note This function should be called only if injected conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @param Timeout Timeout value in milliseconds.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterPollForInjConversion(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t Timeout)
{
uint32_t tickstart;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_INJ) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
return HAL_ERROR;
}
else
{
/* Get timeout */
tickstart = HAL_GetTick();
/* Wait end of injected conversions */
while((hdfsdm_filter->Instance->FLTISR & DFSDM_FLTISR_JEOCF) != DFSDM_FLTISR_JEOCF)
{
/* Check the Timeout */
if(Timeout != HAL_MAX_DELAY)
{
if(((HAL_GetTick() - tickstart) > Timeout) || (Timeout == 0U))
{
/* Return timeout status */
return HAL_TIMEOUT;
}
}
}
/* Check if overrun occurs */
if((hdfsdm_filter->Instance->FLTISR & DFSDM_FLTISR_JOVRF) == DFSDM_FLTISR_JOVRF)
{
/* Update error code and call error callback */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INJECTED_OVERRUN;
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->ErrorCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterErrorCallback(hdfsdm_filter);
#endif
/* Clear injected overrun flag */
hdfsdm_filter->Instance->FLTICR = DFSDM_FLTICR_CLRJOVRF;
}
/* Update remaining injected conversions */
hdfsdm_filter->InjConvRemaining--;
if(hdfsdm_filter->InjConvRemaining == 0U)
{
/* Update DFSDM filter state only if trigger is software */
if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER)
{
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ) ? \
HAL_DFSDM_FILTER_STATE_READY : HAL_DFSDM_FILTER_STATE_REG;
}
/* end of injected sequence, reset the value */
hdfsdm_filter->InjConvRemaining = (hdfsdm_filter->InjectedScanMode == ENABLE) ? \
hdfsdm_filter->InjectedChannelsNbr : 1U;
}
/* Return function status */
return HAL_OK;
}
}
/**
* @brief This function allows to stop injected conversion in polling mode.
* @note This function should be called only if injected conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInjectedStop(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_INJ) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop injected conversion */
DFSDM_InjConvStop(hdfsdm_filter);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start injected conversion in interrupt mode.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if regular conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInjectedStart_IT(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG))
{
/* Enable interrupts for injected conversions */
hdfsdm_filter->Instance->FLTCR2 |= (DFSDM_FLTCR2_JEOCIE | DFSDM_FLTCR2_JOVRIE);
/* Start injected conversion */
DFSDM_InjConvStart(hdfsdm_filter);
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to stop injected conversion in interrupt mode.
* @note This function should be called only if injected conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInjectedStop_IT(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_INJ) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Disable interrupts for injected conversions */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_JEOCIE | DFSDM_FLTCR2_JOVRIE);
/* Stop injected conversion */
DFSDM_InjConvStop(hdfsdm_filter);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start injected conversion in DMA mode.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if regular conversion is ongoing.
* Please note that data on buffer will contain signed injected conversion
* value on 24 most significant bits and corresponding channel on 3 least
* significant bits.
* @param hdfsdm_filter DFSDM filter handle.
* @param pData The destination buffer address.
* @param Length The length of data to be transferred from DFSDM filter to memory.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInjectedStart_DMA(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
int32_t *pData,
uint32_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check destination address and length */
if((pData == NULL) || (Length == 0U))
{
status = HAL_ERROR;
}
/* Check that DMA is enabled for injected conversion */
else if((hdfsdm_filter->Instance->FLTCR1 & DFSDM_FLTCR1_JDMAEN) != DFSDM_FLTCR1_JDMAEN)
{
status = HAL_ERROR;
}
/* Check parameters compatibility */
else if((hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->hdmaInj->Init.Mode == DMA_NORMAL) && \
(Length > hdfsdm_filter->InjConvRemaining))
{
status = HAL_ERROR;
}
else if((hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->hdmaInj->Init.Mode == DMA_CIRCULAR))
{
status = HAL_ERROR;
}
/* Check DFSDM filter state */
else if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG))
{
/* Set callbacks on DMA handler */
hdfsdm_filter->hdmaInj->XferCpltCallback = DFSDM_DMAInjectedConvCplt;
hdfsdm_filter->hdmaInj->XferErrorCallback = DFSDM_DMAError;
hdfsdm_filter->hdmaInj->XferHalfCpltCallback = (hdfsdm_filter->hdmaInj->Init.Mode == DMA_CIRCULAR) ?\
DFSDM_DMAInjectedHalfConvCplt : NULL;
/* Start DMA in interrupt mode */
if(HAL_DMA_Start_IT(hdfsdm_filter->hdmaInj, (uint32_t)&hdfsdm_filter->Instance->FLTJDATAR, \
(uint32_t) pData, Length) != HAL_OK)
{
/* Set DFSDM filter in error state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_ERROR;
status = HAL_ERROR;
}
else
{
/* Start injected conversion */
DFSDM_InjConvStart(hdfsdm_filter);
}
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start injected conversion in DMA mode and to get
* only the 16 most significant bits of conversion.
* @note This function should be called only when DFSDM filter instance is
* in idle state or if regular conversion is ongoing.
* Please note that data on buffer will contain signed 16 most significant
* bits of injected conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @param pData The destination buffer address.
* @param Length The length of data to be transferred from DFSDM filter to memory.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInjectedMsbStart_DMA(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
int16_t *pData,
uint32_t Length)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check destination address and length */
if((pData == NULL) || (Length == 0U))
{
status = HAL_ERROR;
}
/* Check that DMA is enabled for injected conversion */
else if((hdfsdm_filter->Instance->FLTCR1 & DFSDM_FLTCR1_JDMAEN) != DFSDM_FLTCR1_JDMAEN)
{
status = HAL_ERROR;
}
/* Check parameters compatibility */
else if((hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->hdmaInj->Init.Mode == DMA_NORMAL) && \
(Length > hdfsdm_filter->InjConvRemaining))
{
status = HAL_ERROR;
}
else if((hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER) && \
(hdfsdm_filter->hdmaInj->Init.Mode == DMA_CIRCULAR))
{
status = HAL_ERROR;
}
/* Check DFSDM filter state */
else if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG))
{
/* Set callbacks on DMA handler */
hdfsdm_filter->hdmaInj->XferCpltCallback = DFSDM_DMAInjectedConvCplt;
hdfsdm_filter->hdmaInj->XferErrorCallback = DFSDM_DMAError;
hdfsdm_filter->hdmaInj->XferHalfCpltCallback = (hdfsdm_filter->hdmaInj->Init.Mode == DMA_CIRCULAR) ?\
DFSDM_DMAInjectedHalfConvCplt : NULL;
/* Start DMA in interrupt mode */
if(HAL_DMA_Start_IT(hdfsdm_filter->hdmaInj, (uint32_t)(&hdfsdm_filter->Instance->FLTJDATAR) + 2U, \
(uint32_t) pData, Length) != HAL_OK)
{
/* Set DFSDM filter in error state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_ERROR;
status = HAL_ERROR;
}
else
{
/* Start injected conversion */
DFSDM_InjConvStart(hdfsdm_filter);
}
}
else
{
status = HAL_ERROR;
}
/* Return function status */
return status;
}
/**
* @brief This function allows to stop injected conversion in DMA mode.
* @note This function should be called only if injected conversion is ongoing.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterInjectedStop_DMA(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_INJ) && \
(hdfsdm_filter->State != HAL_DFSDM_FILTER_STATE_REG_INJ))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Stop current DMA transfer */
if(HAL_DMA_Abort(hdfsdm_filter->hdmaInj) != HAL_OK)
{
/* Set DFSDM filter in error state */
hdfsdm_filter->State = HAL_DFSDM_FILTER_STATE_ERROR;
status = HAL_ERROR;
}
else
{
/* Stop regular conversion */
DFSDM_InjConvStop(hdfsdm_filter);
}
}
/* Return function status */
return status;
}
/**
* @brief This function allows to get injected conversion value.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Corresponding channel of injected conversion.
* @retval Injected conversion value
*/
int32_t HAL_DFSDM_FilterGetInjectedValue(const DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t *Channel)
{
uint32_t reg;
int32_t value;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(Channel != (void *)0);
/* Get value of data register for injected channel */
reg = hdfsdm_filter->Instance->FLTJDATAR;
/* Extract channel and injected conversion value */
*Channel = (reg & DFSDM_FLTJDATAR_JDATACH);
/* Injected conversion value is a signed value located on 24 MSB of register */
/* So after applying a mask on these bits we have to perform a division by 256 (2 raised to the power of 8) */
reg &= DFSDM_FLTJDATAR_JDATA;
value = ((int32_t)reg) / 256;
/* return regular conversion value */
return value;
}
/**
* @brief This function allows to start filter analog watchdog in interrupt mode.
* @param hdfsdm_filter DFSDM filter handle.
* @param awdParam DFSDM filter analog watchdog parameters.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterAwdStart_IT(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
const DFSDM_Filter_AwdParamTypeDef *awdParam)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(IS_DFSDM_FILTER_AWD_DATA_SOURCE(awdParam->DataSource));
assert_param(IS_DFSDM_INJECTED_CHANNEL(awdParam->Channel));
assert_param(IS_DFSDM_FILTER_AWD_THRESHOLD(awdParam->HighThreshold));
assert_param(IS_DFSDM_FILTER_AWD_THRESHOLD(awdParam->LowThreshold));
assert_param(IS_DFSDM_BREAK_SIGNALS(awdParam->HighBreakSignal));
assert_param(IS_DFSDM_BREAK_SIGNALS(awdParam->LowBreakSignal));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_RESET) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_ERROR))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Set analog watchdog data source */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_AWFSEL);
hdfsdm_filter->Instance->FLTCR1 |= awdParam->DataSource;
/* Set thresholds and break signals */
hdfsdm_filter->Instance->FLTAWHTR &= ~(DFSDM_FLTAWHTR_AWHT | DFSDM_FLTAWHTR_BKAWH);
hdfsdm_filter->Instance->FLTAWHTR |= (((uint32_t) awdParam->HighThreshold << DFSDM_FLTAWHTR_AWHT_Pos) | \
awdParam->HighBreakSignal);
hdfsdm_filter->Instance->FLTAWLTR &= ~(DFSDM_FLTAWLTR_AWLT | DFSDM_FLTAWLTR_BKAWL);
hdfsdm_filter->Instance->FLTAWLTR |= (((uint32_t) awdParam->LowThreshold << DFSDM_FLTAWLTR_AWLT_Pos) | \
awdParam->LowBreakSignal);
/* Set channels and interrupt for analog watchdog */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_AWDCH);
hdfsdm_filter->Instance->FLTCR2 |= (((awdParam->Channel & DFSDM_LSB_MASK) << DFSDM_FLTCR2_AWDCH_Pos) | \
DFSDM_FLTCR2_AWDIE);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to stop filter analog watchdog in interrupt mode.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterAwdStop_IT(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_RESET) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_ERROR))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Reset channels for analog watchdog and deactivate interrupt */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_AWDCH | DFSDM_FLTCR2_AWDIE);
/* Clear all analog watchdog flags */
hdfsdm_filter->Instance->FLTAWCFR = (DFSDM_FLTAWCFR_CLRAWHTF | DFSDM_FLTAWCFR_CLRAWLTF);
/* Reset thresholds and break signals */
hdfsdm_filter->Instance->FLTAWHTR &= ~(DFSDM_FLTAWHTR_AWHT | DFSDM_FLTAWHTR_BKAWH);
hdfsdm_filter->Instance->FLTAWLTR &= ~(DFSDM_FLTAWLTR_AWLT | DFSDM_FLTAWLTR_BKAWL);
/* Reset analog watchdog data source */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_AWFSEL);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to start extreme detector feature.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Channels where extreme detector is enabled.
* This parameter can be a values combination of @ref DFSDM_Channel_Selection.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterExdStart(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t Channel)
{
HAL_StatusTypeDef status = HAL_OK;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(IS_DFSDM_INJECTED_CHANNEL(Channel));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_RESET) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_ERROR))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Set channels for extreme detector */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_EXCH);
hdfsdm_filter->Instance->FLTCR2 |= ((Channel & DFSDM_LSB_MASK) << DFSDM_FLTCR2_EXCH_Pos);
}
/* Return function status */
return status;
}
/**
* @brief This function allows to stop extreme detector feature.
* @param hdfsdm_filter DFSDM filter handle.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_DFSDM_FilterExdStop(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
HAL_StatusTypeDef status = HAL_OK;
__IO uint32_t reg1;
__IO uint32_t reg2;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Check DFSDM filter state */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_RESET) || \
(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_ERROR))
{
/* Return error status */
status = HAL_ERROR;
}
else
{
/* Reset channels for extreme detector */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_EXCH);
/* Clear extreme detector values */
reg1 = hdfsdm_filter->Instance->FLTEXMAX;
reg2 = hdfsdm_filter->Instance->FLTEXMIN;
UNUSED(reg1); /* To avoid GCC warning */
UNUSED(reg2); /* To avoid GCC warning */
}
/* Return function status */
return status;
}
/**
* @brief This function allows to get extreme detector maximum value.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Corresponding channel.
* @retval Extreme detector maximum value
* This value is between Min_Data = -8388608 and Max_Data = 8388607.
*/
int32_t HAL_DFSDM_FilterGetExdMaxValue(const DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t *Channel)
{
uint32_t reg;
int32_t value;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(Channel != (void *)0);
/* Get value of extreme detector maximum register */
reg = hdfsdm_filter->Instance->FLTEXMAX;
/* Extract channel and extreme detector maximum value */
*Channel = (reg & DFSDM_FLTEXMAX_EXMAXCH);
/* Extreme detector maximum value is a signed value located on 24 MSB of register */
/* So after applying a mask on these bits we have to perform a division by 256 (2 raised to the power of 8) */
reg &= DFSDM_FLTEXMAX_EXMAX;
value = ((int32_t)reg) / 256;
/* return extreme detector maximum value */
return value;
}
/**
* @brief This function allows to get extreme detector minimum value.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Corresponding channel.
* @retval Extreme detector minimum value
* This value is between Min_Data = -8388608 and Max_Data = 8388607.
*/
int32_t HAL_DFSDM_FilterGetExdMinValue(const DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t *Channel)
{
uint32_t reg;
int32_t value;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
assert_param(Channel != (void *)0);
/* Get value of extreme detector minimum register */
reg = hdfsdm_filter->Instance->FLTEXMIN;
/* Extract channel and extreme detector minimum value */
*Channel = (reg & DFSDM_FLTEXMIN_EXMINCH);
/* Extreme detector minimum value is a signed value located on 24 MSB of register */
/* So after applying a mask on these bits we have to perform a division by 256 (2 raised to the power of 8) */
reg &= DFSDM_FLTEXMIN_EXMIN;
value = ((int32_t)reg) / 256;
/* return extreme detector minimum value */
return value;
}
/**
* @brief This function allows to get conversion time value.
* @param hdfsdm_filter DFSDM filter handle.
* @retval Conversion time value
* @note To get time in second, this value has to be divided by DFSDM clock frequency.
*/
uint32_t HAL_DFSDM_FilterGetConvTimeValue(const DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
uint32_t reg;
uint32_t value;
/* Check parameters */
assert_param(IS_DFSDM_FILTER_ALL_INSTANCE(hdfsdm_filter->Instance));
/* Get value of conversion timer register */
reg = hdfsdm_filter->Instance->FLTCNVTIMR;
/* Extract conversion time value */
value = ((reg & DFSDM_FLTCNVTIMR_CNVCNT) >> DFSDM_FLTCNVTIMR_CNVCNT_Pos);
/* return extreme detector minimum value */
return value;
}
/**
* @brief This function handles the DFSDM interrupts.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
void HAL_DFSDM_IRQHandler(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
DFSDM_Channel_HandleTypeDef **channelHandleTable;
const DFSDM_Filter_TypeDef *filter0Instance;
uint32_t channelNumber;
/* Get FTLISR and FLTCR2 register values */
const uint32_t temp_fltisr = hdfsdm_filter->Instance->FLTISR;
const uint32_t temp_fltcr2 = hdfsdm_filter->Instance->FLTCR2;
#if defined(DFSDM2_Channel0)
if (IS_DFSDM1_FILTER_INSTANCE(hdfsdm_filter->Instance))
{
channelHandleTable = a_dfsdm1ChannelHandle;
filter0Instance = DFSDM1_Filter0;
channelNumber = DFSDM1_CHANNEL_NUMBER;
}
else
{
channelHandleTable = a_dfsdm2ChannelHandle;
filter0Instance = DFSDM2_Filter0;
channelNumber = DFSDM2_CHANNEL_NUMBER;
}
#else /* DFSDM2_Channel0 */
channelHandleTable = a_dfsdm1ChannelHandle;
filter0Instance = DFSDM1_Filter0;
channelNumber = DFSDM1_CHANNEL_NUMBER;
#endif /* DFSDM2_Channel0 */
/* Check if overrun occurs during regular conversion */
if(((temp_fltisr & DFSDM_FLTISR_ROVRF) != 0U) && \
((temp_fltcr2 & DFSDM_FLTCR2_ROVRIE) != 0U))
{
/* Clear regular overrun flag */
hdfsdm_filter->Instance->FLTICR = DFSDM_FLTICR_CLRROVRF;
/* Update error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_REGULAR_OVERRUN;
/* Call error callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->ErrorCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterErrorCallback(hdfsdm_filter);
#endif
}
/* Check if overrun occurs during injected conversion */
else if(((temp_fltisr & DFSDM_FLTISR_JOVRF) != 0U) && \
((temp_fltcr2 & DFSDM_FLTCR2_JOVRIE) != 0U))
{
/* Clear injected overrun flag */
hdfsdm_filter->Instance->FLTICR = DFSDM_FLTICR_CLRJOVRF;
/* Update error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_INJECTED_OVERRUN;
/* Call error callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->ErrorCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterErrorCallback(hdfsdm_filter);
#endif
}
/* Check if end of regular conversion */
else if(((temp_fltisr & DFSDM_FLTISR_REOCF) != 0U) && \
((temp_fltcr2 & DFSDM_FLTCR2_REOCIE) != 0U))
{
/* Call regular conversion complete callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->RegConvCpltCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterRegConvCpltCallback(hdfsdm_filter);
#endif
/* End of conversion if mode is not continuous and software trigger */
if((hdfsdm_filter->RegularContMode == DFSDM_CONTINUOUS_CONV_OFF) && \
(hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER))
{
/* Disable interrupts for regular conversions */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_REOCIE);
/* Update DFSDM filter state */
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG) ? \
HAL_DFSDM_FILTER_STATE_READY : HAL_DFSDM_FILTER_STATE_INJ;
}
}
/* Check if end of injected conversion */
else if(((temp_fltisr & DFSDM_FLTISR_JEOCF) != 0U) && \
((temp_fltcr2 & DFSDM_FLTCR2_JEOCIE) != 0U))
{
/* Call injected conversion complete callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->InjConvCpltCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterInjConvCpltCallback(hdfsdm_filter);
#endif
/* Update remaining injected conversions */
hdfsdm_filter->InjConvRemaining--;
if(hdfsdm_filter->InjConvRemaining == 0U)
{
/* End of conversion if trigger is software */
if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER)
{
/* Disable interrupts for injected conversions */
hdfsdm_filter->Instance->FLTCR2 &= ~(DFSDM_FLTCR2_JEOCIE);
/* Update DFSDM filter state */
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ) ? \
HAL_DFSDM_FILTER_STATE_READY : HAL_DFSDM_FILTER_STATE_REG;
}
/* end of injected sequence, reset the value */
hdfsdm_filter->InjConvRemaining = (hdfsdm_filter->InjectedScanMode == ENABLE) ? \
hdfsdm_filter->InjectedChannelsNbr : 1U;
}
}
/* Check if analog watchdog occurs */
else if(((temp_fltisr & DFSDM_FLTISR_AWDF) != 0U) && \
((temp_fltcr2 & DFSDM_FLTCR2_AWDIE) != 0U))
{
uint32_t reg;
uint32_t threshold;
uint32_t channel = 0;
/* Get channel and threshold */
reg = hdfsdm_filter->Instance->FLTAWSR;
threshold = ((reg & DFSDM_FLTAWSR_AWLTF) != 0U) ? DFSDM_AWD_LOW_THRESHOLD : DFSDM_AWD_HIGH_THRESHOLD;
if(threshold == DFSDM_AWD_HIGH_THRESHOLD)
{
reg = reg >> DFSDM_FLTAWSR_AWHTF_Pos;
}
while (((reg & 1U) == 0U) && (channel < (channelNumber - 1U)))
{
channel++;
reg = reg >> 1;
}
/* Clear analog watchdog flag */
hdfsdm_filter->Instance->FLTAWCFR = (threshold == DFSDM_AWD_HIGH_THRESHOLD) ? \
(1UL << (DFSDM_FLTAWSR_AWHTF_Pos + channel)) : \
(1UL << channel);
/* Call analog watchdog callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->AwdCallback(hdfsdm_filter, channel, threshold);
#else
HAL_DFSDM_FilterAwdCallback(hdfsdm_filter, channel, threshold);
#endif
}
/* Check if clock absence occurs */
else if((hdfsdm_filter->Instance == filter0Instance) && \
((temp_fltisr & DFSDM_FLTISR_CKABF) != 0U) && \
((temp_fltcr2 & DFSDM_FLTCR2_CKABIE) != 0U))
{
uint32_t reg;
uint32_t channel = 0;
reg = ((hdfsdm_filter->Instance->FLTISR & DFSDM_FLTISR_CKABF) >> DFSDM_FLTISR_CKABF_Pos);
while (channel < channelNumber)
{
/* Check if flag is set and corresponding channel is enabled */
if (((reg & 1U) != 0U) && (channelHandleTable[channel] != NULL))
{
/* Check clock absence has been enabled for this channel */
if ((channelHandleTable[channel]->Instance->CHCFGR1 & DFSDM_CHCFGR1_CKABEN) != 0U)
{
/* Clear clock absence flag */
hdfsdm_filter->Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRCKABF_Pos + channel));
/* Call clock absence callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
channelHandleTable[channel]->CkabCallback(channelHandleTable[channel]);
#else
HAL_DFSDM_ChannelCkabCallback(channelHandleTable[channel]);
#endif
}
}
channel++;
reg = reg >> 1;
}
}
/* Check if short circuit detection occurs */
else if((hdfsdm_filter->Instance == filter0Instance) && \
((temp_fltisr & DFSDM_FLTISR_SCDF) != 0U) && \
((temp_fltcr2 & DFSDM_FLTCR2_SCDIE) != 0U))
{
uint32_t reg;
uint32_t channel = 0;
/* Get channel */
reg = ((hdfsdm_filter->Instance->FLTISR & DFSDM_FLTISR_SCDF) >> DFSDM_FLTISR_SCDF_Pos);
while (((reg & 1U) == 0U) && (channel < (channelNumber - 1U)))
{
channel++;
reg = reg >> 1;
}
/* Clear short circuit detection flag */
hdfsdm_filter->Instance->FLTICR = (1UL << (DFSDM_FLTICR_CLRSCDF_Pos + channel));
/* Call short circuit detection callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
channelHandleTable[channel]->ScdCallback(channelHandleTable[channel]);
#else
HAL_DFSDM_ChannelScdCallback(channelHandleTable[channel]);
#endif
}
}
/**
* @brief Regular conversion complete callback.
* @note In interrupt mode, user has to read conversion value in this function
* using HAL_DFSDM_FilterGetRegularValue.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
__weak void HAL_DFSDM_FilterRegConvCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_FilterRegConvCpltCallback could be implemented in the user file.
*/
}
/**
* @brief Half regular conversion complete callback.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
__weak void HAL_DFSDM_FilterRegConvHalfCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_FilterRegConvHalfCpltCallback could be implemented in the user file.
*/
}
/**
* @brief Injected conversion complete callback.
* @note In interrupt mode, user has to read conversion value in this function
* using HAL_DFSDM_FilterGetInjectedValue.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
__weak void HAL_DFSDM_FilterInjConvCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_FilterInjConvCpltCallback could be implemented in the user file.
*/
}
/**
* @brief Half injected conversion complete callback.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
__weak void HAL_DFSDM_FilterInjConvHalfCpltCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_FilterInjConvHalfCpltCallback could be implemented in the user file.
*/
}
/**
* @brief Filter analog watchdog callback.
* @param hdfsdm_filter DFSDM filter handle.
* @param Channel Corresponding channel.
* @param Threshold Low or high threshold has been reached.
* @retval None
*/
__weak void HAL_DFSDM_FilterAwdCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter,
uint32_t Channel, uint32_t Threshold)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
UNUSED(Channel);
UNUSED(Threshold);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_FilterAwdCallback could be implemented in the user file.
*/
}
/**
* @brief Error callback.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
__weak void HAL_DFSDM_FilterErrorCallback(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Prevent unused argument(s) compilation warning */
UNUSED(hdfsdm_filter);
/* NOTE : This function should not be modified, when the callback is needed,
the HAL_DFSDM_FilterErrorCallback could be implemented in the user file.
*/
}
/**
* @}
*/
/** @defgroup DFSDM_Exported_Functions_Group4_Filter Filter state functions
* @brief Filter state functions
*
@verbatim
==============================================================================
##### Filter state functions #####
==============================================================================
[..] This section provides functions allowing to:
(+) Get the DFSDM filter state.
(+) Get the DFSDM filter error.
@endverbatim
* @{
*/
/**
* @brief This function allows to get the current DFSDM filter handle state.
* @param hdfsdm_filter DFSDM filter handle.
* @retval DFSDM filter state.
*/
HAL_DFSDM_Filter_StateTypeDef HAL_DFSDM_FilterGetState(const DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Return DFSDM filter handle state */
return hdfsdm_filter->State;
}
/**
* @brief This function allows to get the current DFSDM filter error.
* @param hdfsdm_filter DFSDM filter handle.
* @retval DFSDM filter error code.
*/
uint32_t HAL_DFSDM_FilterGetError(const DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
return hdfsdm_filter->ErrorCode;
}
/**
* @}
*/
/**
* @}
*/
/* End of exported functions -------------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/** @addtogroup DFSDM_Private_Functions DFSDM Private Functions
* @{
*/
/**
* @brief DMA half transfer complete callback for regular conversion.
* @param hdma DMA handle.
* @retval None
*/
static void DFSDM_DMARegularHalfConvCplt(DMA_HandleTypeDef *hdma)
{
/* Get DFSDM filter handle */
DFSDM_Filter_HandleTypeDef *hdfsdm_filter = (DFSDM_Filter_HandleTypeDef*) ((DMA_HandleTypeDef*)hdma)->Parent;
/* Call regular half conversion complete callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->RegConvHalfCpltCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterRegConvHalfCpltCallback(hdfsdm_filter);
#endif
}
/**
* @brief DMA transfer complete callback for regular conversion.
* @param hdma DMA handle.
* @retval None
*/
static void DFSDM_DMARegularConvCplt(DMA_HandleTypeDef *hdma)
{
/* Get DFSDM filter handle */
DFSDM_Filter_HandleTypeDef *hdfsdm_filter = (DFSDM_Filter_HandleTypeDef*) ((DMA_HandleTypeDef*)hdma)->Parent;
/* Call regular conversion complete callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->RegConvCpltCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterRegConvCpltCallback(hdfsdm_filter);
#endif
}
/**
* @brief DMA half transfer complete callback for injected conversion.
* @param hdma DMA handle.
* @retval None
*/
static void DFSDM_DMAInjectedHalfConvCplt(DMA_HandleTypeDef *hdma)
{
/* Get DFSDM filter handle */
DFSDM_Filter_HandleTypeDef *hdfsdm_filter = (DFSDM_Filter_HandleTypeDef*) ((DMA_HandleTypeDef*)hdma)->Parent;
/* Call injected half conversion complete callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->InjConvHalfCpltCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterInjConvHalfCpltCallback(hdfsdm_filter);
#endif
}
/**
* @brief DMA transfer complete callback for injected conversion.
* @param hdma DMA handle.
* @retval None
*/
static void DFSDM_DMAInjectedConvCplt(DMA_HandleTypeDef *hdma)
{
/* Get DFSDM filter handle */
DFSDM_Filter_HandleTypeDef *hdfsdm_filter = (DFSDM_Filter_HandleTypeDef*) ((DMA_HandleTypeDef*)hdma)->Parent;
/* Call injected conversion complete callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->InjConvCpltCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterInjConvCpltCallback(hdfsdm_filter);
#endif
}
/**
* @brief DMA error callback.
* @param hdma DMA handle.
* @retval None
*/
static void DFSDM_DMAError(DMA_HandleTypeDef *hdma)
{
/* Get DFSDM filter handle */
DFSDM_Filter_HandleTypeDef *hdfsdm_filter = (DFSDM_Filter_HandleTypeDef*) ((DMA_HandleTypeDef*)hdma)->Parent;
/* Update error code */
hdfsdm_filter->ErrorCode = DFSDM_FILTER_ERROR_DMA;
/* Call error callback */
#if (USE_HAL_DFSDM_REGISTER_CALLBACKS == 1)
hdfsdm_filter->ErrorCallback(hdfsdm_filter);
#else
HAL_DFSDM_FilterErrorCallback(hdfsdm_filter);
#endif
}
/**
* @brief This function allows to get the number of injected channels.
* @param Channels bitfield of injected channels.
* @retval Number of injected channels.
*/
static uint32_t DFSDM_GetInjChannelsNbr(uint32_t Channels)
{
uint32_t nbChannels = 0;
uint32_t tmp;
/* Get the number of channels from bitfield */
tmp = (uint32_t)(Channels & DFSDM_LSB_MASK);
while(tmp != 0U)
{
if((tmp & 1U) != 0U)
{
nbChannels++;
}
tmp = (uint32_t)(tmp >> 1);
}
return nbChannels;
}
/**
* @brief This function allows to get the channel number from channel instance.
* @param Instance DFSDM channel instance.
* @retval Channel number.
*/
static uint32_t DFSDM_GetChannelFromInstance(const DFSDM_Channel_TypeDef* Instance)
{
uint32_t channel;
/* Get channel from instance */
if(Instance == DFSDM1_Channel0)
{
channel = 0;
}
#if defined(DFSDM2_Channel0)
else if (Instance == DFSDM2_Channel0)
{
channel = 0;
}
else if (Instance == DFSDM2_Channel1)
{
channel = 1;
}
#endif /* DFSDM2_Channel0 */
else if(Instance == DFSDM1_Channel1)
{
channel = 1;
}
else if(Instance == DFSDM1_Channel2)
{
channel = 2;
}
else if(Instance == DFSDM1_Channel3)
{
channel = 3;
}
else if(Instance == DFSDM1_Channel4)
{
channel = 4;
}
else if(Instance == DFSDM1_Channel5)
{
channel = 5;
}
else if(Instance == DFSDM1_Channel6)
{
channel = 6;
}
else /* DFSDM1_Channel7 */
{
channel = 7;
}
return channel;
}
/**
* @brief This function allows to really start regular conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
static void DFSDM_RegConvStart(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Check regular trigger */
if(hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER)
{
/* Software start of regular conversion */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_RSWSTART;
}
else /* synchronous trigger */
{
/* Disable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_DFEN);
/* Set RSYNC bit in DFSDM_FLTCR1 register */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_RSYNC;
/* Enable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_DFEN;
/* If injected conversion was in progress, restart it */
if(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ)
{
if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER)
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_JSWSTART;
}
/* Update remaining injected conversions */
hdfsdm_filter->InjConvRemaining = (hdfsdm_filter->InjectedScanMode == ENABLE) ? \
hdfsdm_filter->InjectedChannelsNbr : 1U;
}
}
/* Update DFSDM filter state */
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) ? \
HAL_DFSDM_FILTER_STATE_REG : HAL_DFSDM_FILTER_STATE_REG_INJ;
}
/**
* @brief This function allows to really stop regular conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
static void DFSDM_RegConvStop(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Disable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_DFEN);
/* If regular trigger was synchronous, reset RSYNC bit in DFSDM_FLTCR1 register */
if(hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SYNC_TRIGGER)
{
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_RSYNC);
}
/* Enable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_DFEN;
/* If injected conversion was in progress, restart it */
if(hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG_INJ)
{
if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER)
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_JSWSTART;
}
/* Update remaining injected conversions */
hdfsdm_filter->InjConvRemaining = (hdfsdm_filter->InjectedScanMode == ENABLE) ? \
hdfsdm_filter->InjectedChannelsNbr : 1U;
}
/* Update DFSDM filter state */
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG) ? \
HAL_DFSDM_FILTER_STATE_READY : HAL_DFSDM_FILTER_STATE_INJ;
}
/**
* @brief This function allows to really start injected conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
static void DFSDM_InjConvStart(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Check injected trigger */
if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SW_TRIGGER)
{
/* Software start of injected conversion */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_JSWSTART;
}
else /* external or synchronous trigger */
{
/* Disable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_DFEN);
if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SYNC_TRIGGER)
{
/* Set JSYNC bit in DFSDM_FLTCR1 register */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_JSYNC;
}
else /* external trigger */
{
/* Set JEXTEN[1:0] bits in DFSDM_FLTCR1 register */
hdfsdm_filter->Instance->FLTCR1 |= hdfsdm_filter->ExtTriggerEdge;
}
/* Enable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_DFEN;
/* If regular conversion was in progress, restart it */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG) && \
(hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER))
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_RSWSTART;
}
}
/* Update DFSDM filter state */
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_READY) ? \
HAL_DFSDM_FILTER_STATE_INJ : HAL_DFSDM_FILTER_STATE_REG_INJ;
}
/**
* @brief This function allows to really stop injected conversion.
* @param hdfsdm_filter DFSDM filter handle.
* @retval None
*/
static void DFSDM_InjConvStop(DFSDM_Filter_HandleTypeDef *hdfsdm_filter)
{
/* Disable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_DFEN);
/* If injected trigger was synchronous, reset JSYNC bit in DFSDM_FLTCR1 register */
if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_SYNC_TRIGGER)
{
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_JSYNC);
}
else if(hdfsdm_filter->InjectedTrigger == DFSDM_FILTER_EXT_TRIGGER)
{
/* Reset JEXTEN[1:0] bits in DFSDM_FLTCR1 register */
hdfsdm_filter->Instance->FLTCR1 &= ~(DFSDM_FLTCR1_JEXTEN);
}
else
{
/* Nothing to do */
}
/* Enable DFSDM filter */
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_DFEN;
/* If regular conversion was in progress, restart it */
if((hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_REG_INJ) && \
(hdfsdm_filter->RegularTrigger == DFSDM_FILTER_SW_TRIGGER))
{
hdfsdm_filter->Instance->FLTCR1 |= DFSDM_FLTCR1_RSWSTART;
}
/* Update remaining injected conversions */
hdfsdm_filter->InjConvRemaining = (hdfsdm_filter->InjectedScanMode == ENABLE) ? \
hdfsdm_filter->InjectedChannelsNbr : 1U;
/* Update DFSDM filter state */
hdfsdm_filter->State = (hdfsdm_filter->State == HAL_DFSDM_FILTER_STATE_INJ) ? \
HAL_DFSDM_FILTER_STATE_READY : HAL_DFSDM_FILTER_STATE_REG;
}
/**
* @}
*/
/* End of private functions --------------------------------------------------*/
/**
* @}
*/
#endif /* HAL_DFSDM_MODULE_ENABLED */
/**
* @}
*/
