+++ /dev/null
-/**\r
- ******************************************************************************\r
- * @file stm32l4xx_hal_i2c_ex.c\r
- * @author MCD Application Team\r
- * @brief I2C Extended HAL module driver.\r
- * This file provides firmware functions to manage the following\r
- * functionalities of I2C Extended peripheral:\r
- * + Extended features functions\r
- *\r
- @verbatim\r
- ==============================================================================\r
- ##### I2C peripheral Extended features #####\r
- ==============================================================================\r
-\r
- [..] Comparing to other previous devices, the I2C interface for STM32L4xx\r
- devices contains the following additional features\r
-\r
- (+) Possibility to disable or enable Analog Noise Filter\r
- (+) Use of a configured Digital Noise Filter\r
- (+) Disable or enable wakeup from Stop mode(s)\r
- (+) Disable or enable Fast Mode Plus\r
-\r
- ##### How to use this driver #####\r
- ==============================================================================\r
- [..] This driver provides functions to configure Noise Filter and Wake Up Feature\r
- (#) Configure I2C Analog noise filter using the function HAL_I2CEx_ConfigAnalogFilter()\r
- (#) Configure I2C Digital noise filter using the function HAL_I2CEx_ConfigDigitalFilter()\r
- (#) Configure the enable or disable of I2C Wake Up Mode using the functions :\r
- (++) HAL_I2CEx_EnableWakeUp()\r
- (++) HAL_I2CEx_DisableWakeUp()\r
- (#) Configure the enable or disable of fast mode plus driving capability using the functions :\r
- (++) HAL_I2CEx_EnableFastModePlus()\r
- (++) HAL_I2CEx_DisableFastModePlus()\r
- @endverbatim\r
- ******************************************************************************\r
- * @attention\r
- *\r
- * <h2><center>© Copyright (c) 2017 STMicroelectronics.\r
- * All rights reserved.</center></h2>\r
- *\r
- * This software component is licensed by ST under BSD 3-Clause license,\r
- * the "License"; You may not use this file except in compliance with the\r
- * License. You may obtain a copy of the License at:\r
- * opensource.org/licenses/BSD-3-Clause\r
- *\r
- ******************************************************************************\r
- */\r
-\r
-/* Includes ------------------------------------------------------------------*/\r
-#include "stm32l4xx_hal.h"\r
-\r
-/** @addtogroup STM32L4xx_HAL_Driver\r
- * @{\r
- */\r
-\r
-/** @defgroup I2CEx I2CEx\r
- * @brief I2C Extended HAL module driver\r
- * @{\r
- */\r
-\r
-#ifdef HAL_I2C_MODULE_ENABLED\r
-\r
-/* Private typedef -----------------------------------------------------------*/\r
-/* Private define ------------------------------------------------------------*/\r
-/* Private macro -------------------------------------------------------------*/\r
-/* Private variables ---------------------------------------------------------*/\r
-/* Private function prototypes -----------------------------------------------*/\r
-/* Private functions ---------------------------------------------------------*/\r
-\r
-/** @defgroup I2CEx_Exported_Functions I2C Extended Exported Functions\r
- * @{\r
- */\r
-\r
-/** @defgroup I2CEx_Exported_Functions_Group1 Extended features functions\r
- * @brief Extended features functions\r
- *\r
-@verbatim\r
- ===============================================================================\r
- ##### Extended features functions #####\r
- ===============================================================================\r
- [..] This section provides functions allowing to:\r
- (+) Configure Noise Filters\r
- (+) Configure Wake Up Feature\r
- (+) Configure Fast Mode Plus\r
-\r
-@endverbatim\r
- * @{\r
- */\r
-\r
-/**\r
- * @brief Configure I2C Analog noise filter.\r
- * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains\r
- * the configuration information for the specified I2Cx peripheral.\r
- * @param AnalogFilter New state of the Analog filter.\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));\r
- assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));\r
-\r
- if (hi2c->State == HAL_I2C_STATE_READY)\r
- {\r
- /* Process Locked */\r
- __HAL_LOCK(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_BUSY;\r
-\r
- /* Disable the selected I2C peripheral */\r
- __HAL_I2C_DISABLE(hi2c);\r
-\r
- /* Reset I2Cx ANOFF bit */\r
- hi2c->Instance->CR1 &= ~(I2C_CR1_ANFOFF);\r
-\r
- /* Set analog filter bit*/\r
- hi2c->Instance->CR1 |= AnalogFilter;\r
-\r
- __HAL_I2C_ENABLE(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_READY;\r
-\r
- /* Process Unlocked */\r
- __HAL_UNLOCK(hi2c);\r
-\r
- return HAL_OK;\r
- }\r
- else\r
- {\r
- return HAL_BUSY;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Configure I2C Digital noise filter.\r
- * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains\r
- * the configuration information for the specified I2Cx peripheral.\r
- * @param DigitalFilter Coefficient of digital noise filter between Min_Data=0x00 and Max_Data=0x0F.\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter)\r
-{\r
- uint32_t tmpreg;\r
-\r
- /* Check the parameters */\r
- assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));\r
- assert_param(IS_I2C_DIGITAL_FILTER(DigitalFilter));\r
-\r
- if (hi2c->State == HAL_I2C_STATE_READY)\r
- {\r
- /* Process Locked */\r
- __HAL_LOCK(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_BUSY;\r
-\r
- /* Disable the selected I2C peripheral */\r
- __HAL_I2C_DISABLE(hi2c);\r
-\r
- /* Get the old register value */\r
- tmpreg = hi2c->Instance->CR1;\r
-\r
- /* Reset I2Cx DNF bits [11:8] */\r
- tmpreg &= ~(I2C_CR1_DNF);\r
-\r
- /* Set I2Cx DNF coefficient */\r
- tmpreg |= DigitalFilter << 8U;\r
-\r
- /* Store the new register value */\r
- hi2c->Instance->CR1 = tmpreg;\r
-\r
- __HAL_I2C_ENABLE(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_READY;\r
-\r
- /* Process Unlocked */\r
- __HAL_UNLOCK(hi2c);\r
-\r
- return HAL_OK;\r
- }\r
- else\r
- {\r
- return HAL_BUSY;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Enable I2C wakeup from Stop mode(s).\r
- * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains\r
- * the configuration information for the specified I2Cx peripheral.\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_I2CEx_EnableWakeUp(I2C_HandleTypeDef *hi2c)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_I2C_WAKEUP_FROMSTOP_INSTANCE(hi2c->Instance));\r
-\r
- if (hi2c->State == HAL_I2C_STATE_READY)\r
- {\r
- /* Process Locked */\r
- __HAL_LOCK(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_BUSY;\r
-\r
- /* Disable the selected I2C peripheral */\r
- __HAL_I2C_DISABLE(hi2c);\r
-\r
- /* Enable wakeup from stop mode */\r
- hi2c->Instance->CR1 |= I2C_CR1_WUPEN;\r
-\r
- __HAL_I2C_ENABLE(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_READY;\r
-\r
- /* Process Unlocked */\r
- __HAL_UNLOCK(hi2c);\r
-\r
- return HAL_OK;\r
- }\r
- else\r
- {\r
- return HAL_BUSY;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Disable I2C wakeup from Stop mode(s).\r
- * @param hi2c Pointer to a I2C_HandleTypeDef structure that contains\r
- * the configuration information for the specified I2Cx peripheral.\r
- * @retval HAL status\r
- */\r
-HAL_StatusTypeDef HAL_I2CEx_DisableWakeUp(I2C_HandleTypeDef *hi2c)\r
-{\r
- /* Check the parameters */\r
- assert_param(IS_I2C_WAKEUP_FROMSTOP_INSTANCE(hi2c->Instance));\r
-\r
- if (hi2c->State == HAL_I2C_STATE_READY)\r
- {\r
- /* Process Locked */\r
- __HAL_LOCK(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_BUSY;\r
-\r
- /* Disable the selected I2C peripheral */\r
- __HAL_I2C_DISABLE(hi2c);\r
-\r
- /* Enable wakeup from stop mode */\r
- hi2c->Instance->CR1 &= ~(I2C_CR1_WUPEN);\r
-\r
- __HAL_I2C_ENABLE(hi2c);\r
-\r
- hi2c->State = HAL_I2C_STATE_READY;\r
-\r
- /* Process Unlocked */\r
- __HAL_UNLOCK(hi2c);\r
-\r
- return HAL_OK;\r
- }\r
- else\r
- {\r
- return HAL_BUSY;\r
- }\r
-}\r
-\r
-/**\r
- * @brief Enable the I2C fast mode plus driving capability.\r
- * @param ConfigFastModePlus Selects the pin.\r
- * This parameter can be one of the @ref I2CEx_FastModePlus values\r
- * @note For I2C1, fast mode plus driving capability can be enabled on all selected\r
- * I2C1 pins using I2C_FASTMODEPLUS_I2C1 parameter or independently\r
- * on each one of the following pins PB6, PB7, PB8 and PB9.\r
- * @note For remaining I2C1 pins (PA14, PA15...) fast mode plus driving capability\r
- * can be enabled only by using I2C_FASTMODEPLUS_I2C1 parameter.\r
- * @note For all I2C2 pins fast mode plus driving capability can be enabled\r
- * only by using I2C_FASTMODEPLUS_I2C2 parameter.\r
- * @note For all I2C3 pins fast mode plus driving capability can be enabled\r
- * only by using I2C_FASTMODEPLUS_I2C3 parameter.\r
- * @note For all I2C4 pins fast mode plus driving capability can be enabled\r
- * only by using I2C_FASTMODEPLUS_I2C4 parameter.\r
- * @retval None\r
- */\r
-void HAL_I2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus)\r
-{\r
- /* Check the parameter */\r
- assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));\r
-\r
- /* Enable SYSCFG clock */\r
- __HAL_RCC_SYSCFG_CLK_ENABLE();\r
-\r
- /* Enable fast mode plus driving capability for selected pin */\r
- SET_BIT(SYSCFG->CFGR1, (uint32_t)ConfigFastModePlus);\r
-}\r
-\r
-/**\r
- * @brief Disable the I2C fast mode plus driving capability.\r
- * @param ConfigFastModePlus Selects the pin.\r
- * This parameter can be one of the @ref I2CEx_FastModePlus values\r
- * @note For I2C1, fast mode plus driving capability can be disabled on all selected\r
- * I2C1 pins using I2C_FASTMODEPLUS_I2C1 parameter or independently\r
- * on each one of the following pins PB6, PB7, PB8 and PB9.\r
- * @note For remaining I2C1 pins (PA14, PA15...) fast mode plus driving capability\r
- * can be disabled only by using I2C_FASTMODEPLUS_I2C1 parameter.\r
- * @note For all I2C2 pins fast mode plus driving capability can be disabled\r
- * only by using I2C_FASTMODEPLUS_I2C2 parameter.\r
- * @note For all I2C3 pins fast mode plus driving capability can be disabled\r
- * only by using I2C_FASTMODEPLUS_I2C3 parameter.\r
- * @note For all I2C4 pins fast mode plus driving capability can be disabled\r
- * only by using I2C_FASTMODEPLUS_I2C4 parameter.\r
- * @retval None\r
- */\r
-void HAL_I2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus)\r
-{\r
- /* Check the parameter */\r
- assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));\r
-\r
- /* Enable SYSCFG clock */\r
- __HAL_RCC_SYSCFG_CLK_ENABLE();\r
-\r
- /* Disable fast mode plus driving capability for selected pin */\r
- CLEAR_BIT(SYSCFG->CFGR1, (uint32_t)ConfigFastModePlus);\r
-}\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-#endif /* HAL_I2C_MODULE_ENABLED */\r
-/**\r
- * @}\r
- */\r
-\r
-/**\r
- * @}\r
- */\r
-\r
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/\r
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