/** ****************************************************************************** * @file stm32f4xx_hal_fmpi2c_ex.c * @author MCD Application Team * @version V1.3.2 * @date 26-June-2015 * @brief Extended FMPI2C HAL module driver. * * This file provides firmware functions to manage the following * functionalities of the Inter Integrated Circuit (FMPI2C) peripheral: * + Extended Control methods * @verbatim ============================================================================== ##### FMPI2C peripheral extended features ##### ============================================================================== [..] Comparing to other previous devices, the FMPI2C interface for STM32L4XX devices contains the following additional features (+) Possibility to disable or enable Analog Noise Filter (+) Use of a configured Digital Noise Filter (+) Disable or enable wakeup from Stop mode ##### How to use this driver ##### ============================================================================== [..] This driver provides functions to configure Noise Filter @endverbatim ****************************************************************************** * @attention * *

© COPYRIGHT(c) 2015 STMicroelectronics

* * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @defgroup FMPI2CEx FMPI2CEx * @brief FMPI2C HAL module driver * @{ */ #ifdef HAL_FMPI2C_MODULE_ENABLED #if defined(STM32F446xx) /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Exported functions --------------------------------------------------------*/ /** @defgroup FMPI2CEx_Exported_Functions FMPI2C Extended Exported Functions * @{ */ /** @defgroup FMPI2CEx_Exported_Functions_Group1 Peripheral Control methods * @brief management functions * @verbatim =============================================================================== ##### Extension features functions ##### =============================================================================== [..] This section provides functions allowing to: (+) Configure Noise Filters @endverbatim * @{ */ /** * @brief Configures FMPI2C Analog noise filter. * @param hfmpi2c : pointer to a FMPI2C_HandleTypeDef structure that contains * the configuration information for the specified FMPI2Cx peripheral. * @param AnalogFilter : new state of the Analog filter. * @retval HAL status */ HAL_StatusTypeDef HAL_FMPI2CEx_AnalogFilter_Config(FMPI2C_HandleTypeDef *hfmpi2c, uint32_t AnalogFilter) { /* Check the parameters */ assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance)); assert_param(IS_FMPI2C_ANALOG_FILTER(AnalogFilter)); if((hfmpi2c->State == HAL_FMPI2C_STATE_BUSY) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_RX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_RX)) { return HAL_BUSY; } /* Process Locked */ __HAL_LOCK(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_BUSY; /* Disable the selected FMPI2C peripheral */ __HAL_FMPI2C_DISABLE(hfmpi2c); /* Reset FMPI2Cx ANOFF bit */ hfmpi2c->Instance->CR1 &= ~(FMPI2C_CR1_ANFOFF); /* Set analog filter bit*/ hfmpi2c->Instance->CR1 |= AnalogFilter; __HAL_FMPI2C_ENABLE(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_READY; /* Process Unlocked */ __HAL_UNLOCK(hfmpi2c); return HAL_OK; } /** * @brief Configures FMPI2C Digital noise filter. * @param hfmpi2c : pointer to a FMPI2C_HandleTypeDef structure that contains * the configuration information for the specified FMPI2Cx peripheral. * @param DigitalFilter : Coefficient of digital noise filter between 0x00 and 0x0F. * @retval HAL status */ HAL_StatusTypeDef HAL_FMPI2CEx_DigitalFilter_Config(FMPI2C_HandleTypeDef *hfmpi2c, uint32_t DigitalFilter) { uint32_t tmpreg = 0; /* Check the parameters */ assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance)); assert_param(IS_FMPI2C_DIGITAL_FILTER(DigitalFilter)); if((hfmpi2c->State == HAL_FMPI2C_STATE_BUSY) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_RX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_RX)) { return HAL_BUSY; } /* Process Locked */ __HAL_LOCK(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_BUSY; /* Disable the selected FMPI2C peripheral */ __HAL_FMPI2C_DISABLE(hfmpi2c); /* Get the old register value */ tmpreg = hfmpi2c->Instance->CR1; /* Reset FMPI2Cx DNF bits [11:8] */ tmpreg &= ~(FMPI2C_CR1_DFN); /* Set FMPI2Cx DNF coefficient */ tmpreg |= DigitalFilter << 8; /* Store the new register value */ hfmpi2c->Instance->CR1 = tmpreg; __HAL_FMPI2C_ENABLE(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_READY; /* Process Unlocked */ __HAL_UNLOCK(hfmpi2c); return HAL_OK; } /** * @brief Enables FMPI2C wakeup from stop mode. * @param hfmpi2c : pointer to a FMPI2C_HandleTypeDef structure that contains * the configuration information for the specified FMPI2Cx peripheral. * @retval HAL status */ HAL_StatusTypeDef HAL_FMPI2CEx_EnableWakeUp (FMPI2C_HandleTypeDef *hfmpi2c) { /* Check the parameters */ assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance)); if((hfmpi2c->State == HAL_FMPI2C_STATE_BUSY) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_RX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_RX)) { return HAL_BUSY; } /* Process Locked */ __HAL_LOCK(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_BUSY; /* Disable the selected FMPI2C peripheral */ __HAL_FMPI2C_DISABLE(hfmpi2c); /* Enable wakeup from stop mode */ hfmpi2c->Instance->CR1 |= FMPI2C_CR1_WUPEN; __HAL_FMPI2C_ENABLE(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_READY; /* Process Unlocked */ __HAL_UNLOCK(hfmpi2c); return HAL_OK; } /** * @brief Disables FMPI2C wakeup from stop mode. * @param hfmpi2c : pointer to a FMPI2C_HandleTypeDef structure that contains * the configuration information for the specified FMPI2Cx peripheral. * @retval HAL status */ HAL_StatusTypeDef HAL_FMPI2CEx_DisableWakeUp (FMPI2C_HandleTypeDef *hfmpi2c) { /* Check the parameters */ assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance)); if((hfmpi2c->State == HAL_FMPI2C_STATE_BUSY) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_MASTER_BUSY_RX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_TX) || (hfmpi2c->State == HAL_FMPI2C_STATE_SLAVE_BUSY_RX)) { return HAL_BUSY; } /* Process Locked */ __HAL_LOCK(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_BUSY; /* Disable the selected FMPI2C peripheral */ __HAL_FMPI2C_DISABLE(hfmpi2c); /* Enable wakeup from stop mode */ hfmpi2c->Instance->CR1 &= ~(FMPI2C_CR1_WUPEN); __HAL_FMPI2C_ENABLE(hfmpi2c); hfmpi2c->State = HAL_FMPI2C_STATE_READY; /* Process Unlocked */ __HAL_UNLOCK(hfmpi2c); return HAL_OK; } /** * @brief Enable the FMPI2C1 fast mode plus driving capability. * @param ConfigFastModePlus: selects the pin. * This parameter can be one of the @ref FMPI2CEx_FastModePlus values * @retval None */ void HAL_FMPI2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus) { /* Check the parameter */ assert_param(IS_FMPI2C_FASTMODEPLUS(ConfigFastModePlus)); /* Enable SYSCFG clock */ __HAL_RCC_SYSCFG_CLK_ENABLE(); /* Enable fast mode plus driving capability for selected pin */ SET_BIT(SYSCFG->CFGR, (uint32_t)ConfigFastModePlus); } /** * @brief Disable the FMPI2C1 fast mode plus driving capability. * @param ConfigFastModePlus: selects the pin. * This parameter can be one of the @ref FMPI2CEx_FastModePlus values * @retval None */ void HAL_FMPI2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus) { /* Check the parameter */ assert_param(IS_FMPI2C_FASTMODEPLUS(ConfigFastModePlus)); /* Enable SYSCFG clock */ __HAL_RCC_SYSCFG_CLK_ENABLE(); /* Disable fast mode plus driving capability for selected pin */ CLEAR_BIT(SYSCFG->CFGR, (uint32_t)ConfigFastModePlus); } /** * @} */ /** * @} */ #endif /* STM32F446xx */ #endif /* HAL_FMPI2C_MODULE_ENABLED */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/