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258
Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_fmpi2c_ex.c
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258
Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_fmpi2c_ex.c
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/**
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******************************************************************************
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* @file stm32f4xx_hal_fmpi2c_ex.c
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* @author MCD Application Team
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* @brief FMPI2C Extended HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of FMPI2C Extended peripheral:
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* + Filter Mode Functions
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* + FastModePlus Functions
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*
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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@verbatim
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==============================================================================
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##### FMPI2C peripheral Extended features #####
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==============================================================================
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[..] Comparing to other previous devices, the FMPI2C interface for STM32F4xx
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devices contains the following additional features
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(+) Possibility to disable or enable Analog Noise Filter
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(+) Use of a configured Digital Noise Filter
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(+) Disable or enable Fast Mode Plus
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##### How to use this driver #####
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==============================================================================
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[..] This driver provides functions to:
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(#) Configure FMPI2C Analog noise filter using the function HAL_FMPI2CEx_ConfigAnalogFilter()
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(#) Configure FMPI2C Digital noise filter using the function HAL_FMPI2CEx_ConfigDigitalFilter()
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(#) Configure the enable or disable of fast mode plus driving capability using the functions :
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(++) HAL_FMPI2CEx_EnableFastModePlus()
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(++) HAL_FMPI2CEx_DisableFastModePlus()
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@endverbatim
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx_hal.h"
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/** @addtogroup STM32F4xx_HAL_Driver
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* @{
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*/
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/** @defgroup FMPI2CEx FMPI2CEx
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* @brief FMPI2C Extended HAL module driver
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* @{
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*/
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#ifdef HAL_FMPI2C_MODULE_ENABLED
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#if defined(FMPI2C_CR1_PE)
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/** @defgroup FMPI2CEx_Exported_Functions FMPI2C Extended Exported Functions
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* @{
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*/
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/** @defgroup FMPI2CEx_Exported_Functions_Group1 Filter Mode Functions
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* @brief Filter Mode Functions
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*
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@verbatim
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===============================================================================
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##### Filter Mode Functions #####
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===============================================================================
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[..] This section provides functions allowing to:
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(+) Configure Noise Filters
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@endverbatim
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* @{
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*/
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/**
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* @brief Configure FMPI2C Analog noise filter.
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* @param hfmpi2c Pointer to a FMPI2C_HandleTypeDef structure that contains
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* the configuration information for the specified FMPI2Cx peripheral.
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* @param AnalogFilter New state of the Analog filter.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_FMPI2CEx_ConfigAnalogFilter(FMPI2C_HandleTypeDef *hfmpi2c, uint32_t AnalogFilter)
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{
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/* Check the parameters */
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assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance));
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assert_param(IS_FMPI2C_ANALOG_FILTER(AnalogFilter));
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if (hfmpi2c->State == HAL_FMPI2C_STATE_READY)
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{
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/* Process Locked */
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__HAL_LOCK(hfmpi2c);
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hfmpi2c->State = HAL_FMPI2C_STATE_BUSY;
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/* Disable the selected FMPI2C peripheral */
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__HAL_FMPI2C_DISABLE(hfmpi2c);
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/* Reset FMPI2Cx ANOFF bit */
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hfmpi2c->Instance->CR1 &= ~(FMPI2C_CR1_ANFOFF);
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/* Set analog filter bit*/
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hfmpi2c->Instance->CR1 |= AnalogFilter;
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__HAL_FMPI2C_ENABLE(hfmpi2c);
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hfmpi2c->State = HAL_FMPI2C_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hfmpi2c);
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return HAL_OK;
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}
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else
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{
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return HAL_BUSY;
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}
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}
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/**
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* @brief Configure FMPI2C Digital noise filter.
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* @param hfmpi2c Pointer to a FMPI2C_HandleTypeDef structure that contains
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* the configuration information for the specified FMPI2Cx peripheral.
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* @param DigitalFilter Coefficient of digital noise filter between Min_Data=0x00 and Max_Data=0x0F.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_FMPI2CEx_ConfigDigitalFilter(FMPI2C_HandleTypeDef *hfmpi2c, uint32_t DigitalFilter)
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{
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uint32_t tmpreg;
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/* Check the parameters */
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assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance));
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assert_param(IS_FMPI2C_DIGITAL_FILTER(DigitalFilter));
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if (hfmpi2c->State == HAL_FMPI2C_STATE_READY)
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{
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/* Process Locked */
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__HAL_LOCK(hfmpi2c);
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hfmpi2c->State = HAL_FMPI2C_STATE_BUSY;
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/* Disable the selected FMPI2C peripheral */
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__HAL_FMPI2C_DISABLE(hfmpi2c);
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/* Get the old register value */
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tmpreg = hfmpi2c->Instance->CR1;
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/* Reset FMPI2Cx DNF bits [11:8] */
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tmpreg &= ~(FMPI2C_CR1_DNF);
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/* Set FMPI2Cx DNF coefficient */
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tmpreg |= DigitalFilter << 8U;
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/* Store the new register value */
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hfmpi2c->Instance->CR1 = tmpreg;
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__HAL_FMPI2C_ENABLE(hfmpi2c);
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hfmpi2c->State = HAL_FMPI2C_STATE_READY;
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/* Process Unlocked */
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__HAL_UNLOCK(hfmpi2c);
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return HAL_OK;
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}
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else
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{
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return HAL_BUSY;
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}
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}
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/**
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* @}
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*/
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/** @defgroup FMPI2CEx_Exported_Functions_Group3 Fast Mode Plus Functions
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* @brief Fast Mode Plus Functions
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*
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@verbatim
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===============================================================================
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##### Fast Mode Plus Functions #####
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===============================================================================
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[..] This section provides functions allowing to:
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(+) Configure Fast Mode Plus
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@endverbatim
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* @{
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*/
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/**
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* @brief Enable the FMPI2C fast mode plus driving capability.
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* @param ConfigFastModePlus Selects the pin.
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* This parameter can be one of the @ref FMPI2CEx_FastModePlus values
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* @note For FMPI2C1, fast mode plus driving capability can be enabled on all selected
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* FMPI2C1 pins using FMPI2C_FASTMODEPLUS_FMPI2C1 parameter or independently
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* on each one of the following pins PB6, PB7, PB8 and PB9.
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* @note For remaining FMPI2C1 pins (PA14, PA15...) fast mode plus driving capability
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* can be enabled only by using FMPI2C_FASTMODEPLUS_FMPI2C1 parameter.
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* @retval None
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*/
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void HAL_FMPI2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus)
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{
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/* Check the parameter */
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assert_param(IS_FMPI2C_FASTMODEPLUS(ConfigFastModePlus));
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/* Enable SYSCFG clock */
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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/* Enable fast mode plus driving capability for selected pin */
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SET_BIT(SYSCFG->CFGR, (uint32_t)ConfigFastModePlus);
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}
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/**
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* @brief Disable the FMPI2C fast mode plus driving capability.
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* @param ConfigFastModePlus Selects the pin.
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* This parameter can be one of the @ref FMPI2CEx_FastModePlus values
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* @note For FMPI2C1, fast mode plus driving capability can be disabled on all selected
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* FMPI2C1 pins using FMPI2C_FASTMODEPLUS_FMPI2C1 parameter or independently
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* on each one of the following pins PB6, PB7, PB8 and PB9.
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* @note For remaining FMPI2C1 pins (PA14, PA15...) fast mode plus driving capability
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* can be disabled only by using FMPI2C_FASTMODEPLUS_FMPI2C1 parameter.
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* @retval None
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*/
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void HAL_FMPI2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus)
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{
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/* Check the parameter */
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assert_param(IS_FMPI2C_FASTMODEPLUS(ConfigFastModePlus));
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/* Enable SYSCFG clock */
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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/* Disable fast mode plus driving capability for selected pin */
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CLEAR_BIT(SYSCFG->CFGR, (uint32_t)ConfigFastModePlus);
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* FMPI2C_CR1_PE */
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#endif /* HAL_FMPI2C_MODULE_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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