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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c | 454 |
1 files changed, 0 insertions, 454 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c b/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c deleted file mode 100644 index b5eeba9bb5..0000000000 --- a/c/src/lib/libbsp/arm/stm32f4x/hal/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_wwdg.c +++ /dev/null @@ -1,454 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f4xx_hal_wwdg.c - * @author MCD Application Team - * @version V1.4.0 - * @date 14-August-2015 - * @brief WWDG HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the Window Watchdog (WWDG) peripheral: - * + Initialization and de-initialization functions - * + IO operation functions - * + Peripheral State functions - @verbatim - ============================================================================== - ##### WWDG specific features ##### - ============================================================================== - [..] - Once enabled the WWDG generates a system reset on expiry of a programmed - time period, unless the program refreshes the counter (downcounter) - before reaching 0x3F value (i.e. a reset is generated when the counter - value rolls over from 0x40 to 0x3F). - - (+) An MCU reset is also generated if the counter value is refreshed - before the counter has reached the refresh window value. This - implies that the counter must be refreshed in a limited window. - (+) Once enabled the WWDG cannot be disabled except by a system reset. - (+) WWDGRST flag in RCC_CSR register can be used to inform when a WWDG - reset occurs. - (+) The WWDG counter input clock is derived from the APB clock divided - by a programmable prescaler. - (+) WWDG clock (Hz) = PCLK1 / (4096 * Prescaler) - (+) WWDG timeout (mS) = 1000 * Counter / WWDG clock - (+) WWDG Counter refresh is allowed between the following limits : - (++) min time (mS) = 1000 * (Counter – Window) / WWDG clock - (++) max time (mS) = 1000 * (Counter – 0x40) / WWDG clock - - (+) Min-max timeout value at 50 MHz(PCLK1): 81.9 us / 41.9 ms - - - ##### How to use this driver ##### - ============================================================================== - [..] - (+) Enable WWDG APB1 clock using __HAL_RCC_WWDG_CLK_ENABLE(). - (+) Set the WWDG prescaler, refresh window and counter value - using HAL_WWDG_Init() function. - (+) Start the WWDG using HAL_WWDG_Start() function. - When the WWDG is enabled the counter value should be configured to - a value greater than 0x40 to prevent generating an immediate reset. - (+) Optionally you can enable the Early Wakeup Interrupt (EWI) which is - generated when the counter reaches 0x40, and then start the WWDG using - HAL_WWDG_Start_IT(). At EWI HAL_WWDG_WakeupCallback is executed and user can - add his own code by customization of function pointer HAL_WWDG_WakeupCallback - Once enabled, EWI interrupt cannot be disabled except by a system reset. - (+) Then the application program must refresh the WWDG counter at regular - intervals during normal operation to prevent an MCU reset, using - HAL_WWDG_Refresh() function. This operation must occur only when - the counter is lower than the refresh window value already programmed. - - *** WWDG HAL driver macros list *** - ================================== - [..] - Below the list of most used macros in WWDG HAL driver. - - (+) __HAL_WWDG_ENABLE: Enable the WWDG peripheral - (+) __HAL_WWDG_GET_FLAG: Get the selected WWDG's flag status - (+) __HAL_WWDG_CLEAR_FLAG: Clear the WWDG's pending flags - (+) __HAL_WWDG_ENABLE_IT: Enables the WWDG early wake-up interrupt - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> - * - * 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 WWDG WWDG - * @brief WWDG HAL module driver. - * @{ - */ - -#ifdef HAL_WWDG_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/* Exported functions --------------------------------------------------------*/ -/** @defgroup WWDG_Exported_Functions WWDG Exported Functions - * @{ - */ - -/** @defgroup WWDG_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and Configuration functions. - * -@verbatim - ============================================================================== - ##### Initialization and de-initialization functions ##### - ============================================================================== - [..] - This section provides functions allowing to: - (+) Initialize the WWDG according to the specified parameters - in the WWDG_InitTypeDef and create the associated handle - (+) DeInitialize the WWDG peripheral - (+) Initialize the WWDG MSP - (+) DeInitialize the WWDG MSP - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the WWDG according to the specified - * parameters in the WWDG_InitTypeDef and creates the associated handle. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef *hwwdg) -{ - /* Check the WWDG handle allocation */ - if(hwwdg == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_WWDG_ALL_INSTANCE(hwwdg->Instance)); - assert_param(IS_WWDG_PRESCALER(hwwdg->Init.Prescaler)); - assert_param(IS_WWDG_WINDOW(hwwdg->Init.Window)); - assert_param(IS_WWDG_COUNTER(hwwdg->Init.Counter)); - - if(hwwdg->State == HAL_WWDG_STATE_RESET) - { - /* Allocate lock resource and initialize it */ - hwwdg->Lock = HAL_UNLOCKED; - /* Init the low level hardware */ - HAL_WWDG_MspInit(hwwdg); - } - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_BUSY; - - /* Set WWDG Prescaler and Window */ - MODIFY_REG(hwwdg->Instance->CFR, (WWDG_CFR_WDGTB | WWDG_CFR_W), (hwwdg->Init.Prescaler | hwwdg->Init.Window)); - /* Set WWDG Counter */ - MODIFY_REG(hwwdg->Instance->CR, WWDG_CR_T, hwwdg->Init.Counter); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_READY; - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief DeInitializes the WWDG peripheral. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_WWDG_DeInit(WWDG_HandleTypeDef *hwwdg) -{ - /* Check the WWDG handle allocation */ - if(hwwdg == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_WWDG_ALL_INSTANCE(hwwdg->Instance)); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_BUSY; - - /* DeInit the low level hardware */ - HAL_WWDG_MspDeInit(hwwdg); - - /* Reset WWDG Control register */ - hwwdg->Instance->CR = (uint32_t)0x0000007F; - - /* Reset WWDG Configuration register */ - hwwdg->Instance->CFR = (uint32_t)0x0000007F; - - /* Reset WWDG Status register */ - hwwdg->Instance->SR = 0; - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_RESET; - - /* Release Lock */ - __HAL_UNLOCK(hwwdg); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Initializes the WWDG MSP. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval None - */ -__weak void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg) -{ - /* NOTE: This function Should not be modified, when the callback is needed, - the HAL_WWDG_MspInit could be implemented in the user file - */ -} - -/** - * @brief DeInitializes the WWDG MSP. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval None - */ -__weak void HAL_WWDG_MspDeInit(WWDG_HandleTypeDef *hwwdg) -{ - /* NOTE: This function Should not be modified, when the callback is needed, - the HAL_WWDG_MspDeInit could be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup WWDG_Exported_Functions_Group2 IO operation functions - * @brief IO operation functions - * -@verbatim - ============================================================================== - ##### IO operation functions ##### - ============================================================================== - [..] - This section provides functions allowing to: - (+) Start the WWDG. - (+) Refresh the WWDG. - (+) Handle WWDG interrupt request. - -@endverbatim - * @{ - */ - -/** - * @brief Starts the WWDG. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_WWDG_Start(WWDG_HandleTypeDef *hwwdg) -{ - /* Process Locked */ - __HAL_LOCK(hwwdg); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_BUSY; - - /* Enable the peripheral */ - __HAL_WWDG_ENABLE(hwwdg); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hwwdg); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Starts the WWDG with interrupt enabled. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_WWDG_Start_IT(WWDG_HandleTypeDef *hwwdg) -{ - /* Process Locked */ - __HAL_LOCK(hwwdg); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_BUSY; - - /* Enable the Early Wakeup Interrupt */ - __HAL_WWDG_ENABLE_IT(hwwdg, WWDG_IT_EWI); - - /* Enable the peripheral */ - __HAL_WWDG_ENABLE(hwwdg); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Refreshes the WWDG. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @param Counter: value of counter to put in WWDG counter - * @retval HAL status - */ -HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg, uint32_t Counter) -{ - /* Process Locked */ - __HAL_LOCK(hwwdg); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_BUSY; - - /* Check the parameters */ - assert_param(IS_WWDG_COUNTER(Counter)); - - /* Write to WWDG CR the WWDG Counter value to refresh with */ - MODIFY_REG(hwwdg->Instance->CR, (uint32_t)WWDG_CR_T, Counter); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hwwdg); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Handles WWDG interrupt request. - * @note The Early Wakeup Interrupt (EWI) can be used if specific safety operations - * or data logging must be performed before the actual reset is generated. - * The EWI interrupt is enabled using __HAL_WWDG_ENABLE_IT() macro. - * When the downcounter reaches the value 0x40, and EWI interrupt is - * generated and the corresponding Interrupt Service Routine (ISR) can - * be used to trigger specific actions (such as communications or data - * logging), before resetting the device. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval None - */ -void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg) -{ - /* Check if Early Wakeup Interrupt is enable */ - if(__HAL_WWDG_GET_IT_SOURCE(hwwdg, WWDG_IT_EWI) != RESET) - { - /* Check if WWDG Early Wakeup Interrupt occurred */ - if(__HAL_WWDG_GET_FLAG(hwwdg, WWDG_FLAG_EWIF) != RESET) - { - /* Early Wakeup callback */ - HAL_WWDG_WakeupCallback(hwwdg); - - /* Change WWDG peripheral state */ - hwwdg->State = HAL_WWDG_STATE_READY; - - /* Clear the WWDG Early Wakeup flag */ - __HAL_WWDG_CLEAR_FLAG(hwwdg, WWDG_FLAG_EWIF); - - /* Process Unlocked */ - __HAL_UNLOCK(hwwdg); - } - } -} - -/** - * @brief Early Wakeup WWDG callback. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval None - */ -__weak void HAL_WWDG_WakeupCallback(WWDG_HandleTypeDef* hwwdg) -{ - /* NOTE: This function Should not be modified, when the callback is needed, - the HAL_WWDG_WakeupCallback could be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup WWDG_Exported_Functions_Group3 Peripheral State functions - * @brief Peripheral State functions. - * -@verbatim - ============================================================================== - ##### Peripheral State functions ##### - ============================================================================== - [..] - This subsection permits to get in run-time the status of the peripheral - and the data flow. - -@endverbatim - * @{ - */ - -/** - * @brief Returns the WWDG state. - * @param hwwdg: pointer to a WWDG_HandleTypeDef structure that contains - * the configuration information for the specified WWDG module. - * @retval HAL state - */ -HAL_WWDG_StateTypeDef HAL_WWDG_GetState(WWDG_HandleTypeDef *hwwdg) -{ - return hwwdg->State; -} - -/** - * @} - */ - -/** - * @} - */ - -#endif /* HAL_WWDG_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |