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Diffstat (limited to 'stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c')
| -rw-r--r-- | stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c deleted file mode 100644 index 23e0791..0000000 --- a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c +++ /dev/null @@ -1,360 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f1xx_hal_iwdg.c - * @author MCD Application Team - * @version V1.0.4 - * @date 29-April-2016 - * @brief IWDG HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the Independent Watchdog (IWDG) peripheral: - * + Initialization and Configuration functions - * + IO operation functions - * + Peripheral State functions - @verbatim -================================================================================ - ##### IWDG specific features ##### -================================================================================ - [..] - (+) The IWDG can be started by either software or hardware (configurable - through option byte). - (+) The IWDG is clocked by its own dedicated Low-Speed clock (LSI) and - thus stays active even if the main clock fails. - (+) Once the IWDG is started, the LSI is forced ON and cannot be disabled - (LSI cannot be disabled too), and the counter starts counting down from - the reset value of 0xFFF. When it reaches the end of count value (0x000) - a system reset is generated. - (+) The IWDG counter should be refreshed at regular intervals, otherwise the - watchdog generates an MCU reset when the counter reaches 0. - (+) The IWDG is implemented in the VDD voltage domain that is still functional - in STOP and STANDBY mode (IWDG reset can wake-up from STANDBY). - (+) IWDGRST flag in RCC_CSR register can be used to inform when an IWDG - reset occurs. - - (+) Min-max timeout value at 40KHz (LSI): 0.1us / 26.2s . - The IWDG timeout may vary due to LSI frequency dispersion. STM32F1xx - devices provide the capability to measure the LSI frequency (LSI clock - connected internally to TIM5 CH4 input capture). The measured value - can be used to have an IWDG timeout with an acceptable accuracy. - For more information, please refer to the STM32F1xx Reference manual. - Note: LSI Calibration is only available on: High density, XL-density and Connectivity line devices. - - ##### How to use this driver ##### - ============================================================================== - [..] - (+) Use IWDG using HAL_IWDG_Init() function to : - (++) Enable write access to IWDG_PR, IWDG_RLR. - (++) Configure the IWDG prescaler, counter reload value. - This reload value will be loaded in the IWDG counter each time the counter - is reloaded, then the IWDG will start counting down from this value. - (+) Use IWDG using HAL_IWDG_Start() function to : - (++) Reload IWDG counter with value defined in the IWDG_RLR register. - (++) Start the IWDG, when the IWDG is used in software mode (no need - to enable the LSI, it will be enabled by hardware). - (+) Then the application program must refresh the IWDG counter at regular - intervals during normal operation to prevent an MCU reset, using - HAL_IWDG_Refresh() function. - - *** IWDG HAL driver macros list *** - ==================================== - [..] - Below the list of most used macros in IWDG HAL driver. - - (+) __HAL_IWDG_START: Enable the IWDG peripheral - (+) __HAL_IWDG_RELOAD_COUNTER: Reloads IWDG counter with value defined in the reload register - (+) __HAL_IWDG_GET_FLAG: Get the selected IWDG's flag status - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2016 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 "stm32f1xx_hal.h" - -/** @addtogroup STM32F1xx_HAL_Driver - * @{ - */ - -/** @defgroup IWDG IWDG - * @brief IWDG HAL module driver. - * @{ - */ - -#ifdef HAL_IWDG_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ - -/** @defgroup IWDG_Private_Constants IWDG Private Constants - * @{ - */ - -#define IWDG_DEFAULT_TIMEOUT (uint32_t)1000 - -/** - * @} - */ - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/* Private functions ---------------------------------------------------------*/ - -/** @defgroup IWDG_Exported_Functions IWDG Exported Functions - * @{ - */ - -/** @defgroup IWDG_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 IWDG according to the specified parameters - in the IWDG_InitTypeDef and create the associated handle - (+) Initialize the IWDG MSP - (+) DeInitialize IWDG MSP - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the IWDG according to the specified - * parameters in the IWDG_InitTypeDef and creates the associated handle. - * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains - * the configuration information for the specified IWDG module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg) -{ - /* Check the IWDG handle allocation */ - if(hiwdg == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_IWDG_ALL_INSTANCE(hiwdg->Instance)); - assert_param(IS_IWDG_PRESCALER(hiwdg->Init.Prescaler)); - assert_param(IS_IWDG_RELOAD(hiwdg->Init.Reload)); - - /* Check pending flag, if previous update not done, return error */ - if((__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_PVU) != RESET) - &&(__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_RVU) != RESET)) - { - return HAL_ERROR; - } - - if(hiwdg->State == HAL_IWDG_STATE_RESET) - { - /* Allocate lock resource and initialize it */ - hiwdg->Lock = HAL_UNLOCKED; - - /* Init the low level hardware */ - HAL_IWDG_MspInit(hiwdg); - } - - /* Change IWDG peripheral state */ - hiwdg->State = HAL_IWDG_STATE_BUSY; - - /* Enable write access to IWDG_PR and IWDG_RLR registers */ - IWDG_ENABLE_WRITE_ACCESS(hiwdg); - - /* Write to IWDG registers the IWDG_Prescaler & IWDG_Reload values to work with */ - MODIFY_REG(hiwdg->Instance->PR, IWDG_PR_PR, hiwdg->Init.Prescaler); - MODIFY_REG(hiwdg->Instance->RLR, IWDG_RLR_RL, hiwdg->Init.Reload); - - /* Change IWDG peripheral state */ - hiwdg->State = HAL_IWDG_STATE_READY; - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Initializes the IWDG MSP. - * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains - * the configuration information for the specified IWDG module. - * @retval None - */ -__weak void HAL_IWDG_MspInit(IWDG_HandleTypeDef *hiwdg) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hiwdg); - /* NOTE : This function Should not be modified, when the callback is needed, - the HAL_IWDG_MspInit could be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup IWDG_Exported_Functions_Group2 IO operation functions - * @brief IO operation functions - * -@verbatim - =============================================================================== - ##### IO operation functions ##### - =============================================================================== - [..] This section provides functions allowing to: - (+) Start the IWDG. - (+) Refresh the IWDG. - -@endverbatim - * @{ - */ - -/** - * @brief Starts the IWDG. - * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains - * the configuration information for the specified IWDG module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_IWDG_Start(IWDG_HandleTypeDef *hiwdg) -{ - /* Process Locked */ - __HAL_LOCK(hiwdg); - - /* Change IWDG peripheral state */ - hiwdg->State = HAL_IWDG_STATE_BUSY; - - /* Start the IWDG peripheral */ - __HAL_IWDG_START(hiwdg); - - /* Reload IWDG counter with value defined in the RLR register */ - __HAL_IWDG_RELOAD_COUNTER(hiwdg); - - /* Change IWDG peripheral state */ - hiwdg->State = HAL_IWDG_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hiwdg); - - /* Return function status */ - return HAL_OK; -} - -/** - * @brief Refreshes the IWDG. - * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains - * the configuration information for the specified IWDG module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg) -{ - uint32_t tickstart = 0; - - /* Process Locked */ - __HAL_LOCK(hiwdg); - - /* Change IWDG peripheral state */ - hiwdg->State = HAL_IWDG_STATE_BUSY; - - tickstart = HAL_GetTick(); - - /* Wait until RVU flag is RESET */ - while(__HAL_IWDG_GET_FLAG(hiwdg, IWDG_FLAG_RVU) != RESET) - { - if((HAL_GetTick() - tickstart ) > IWDG_DEFAULT_TIMEOUT) - { - /* Set IWDG state */ - hiwdg->State = HAL_IWDG_STATE_TIMEOUT; - - /* Process unlocked */ - __HAL_UNLOCK(hiwdg); - - return HAL_TIMEOUT; - } - } - - /* Reload IWDG counter with value defined in the reload register */ - __HAL_IWDG_RELOAD_COUNTER(hiwdg); - - /* Change IWDG peripheral state */ - hiwdg->State = HAL_IWDG_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hiwdg); - - /* Return function status */ - return HAL_OK; -} - -/** - * @} - */ - -/** @defgroup IWDG_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 IWDG state. - * @param hiwdg: pointer to a IWDG_HandleTypeDef structure that contains - * the configuration information for the specified IWDG module. - * @retval HAL state - */ -HAL_IWDG_StateTypeDef HAL_IWDG_GetState(IWDG_HandleTypeDef *hiwdg) -{ - return hiwdg->State; -} - -/** - * @} - */ - -/** - * @} - */ - -#endif /* HAL_IWDG_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |