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Diffstat (limited to 'hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_wwdg.c')
| -rw-r--r-- | hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_wwdg.c | 414 |
1 files changed, 0 insertions, 414 deletions
diff --git a/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_wwdg.c b/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_wwdg.c deleted file mode 100644 index ee67701..0000000 --- a/hid-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_wwdg.c +++ /dev/null @@ -1,414 +0,0 @@ -/**
- ******************************************************************************
- * @file stm32f0xx_hal_wwdg.c
- * @author MCD Application Team
- * @brief WWDG HAL module driver.
- * This file provides firmware functions to manage the following
- * functionalities of the Window Watchdog (WWDG) peripheral:
- * + Initialization and Configuration functions
- * + IO operation 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 (T[6;0] downcounter)
- before reaching 0x3F value (i.e. a reset is generated when the counter
- value rolls down 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 * (T[5;0] + 1) / WWDG clock (Hz)
- where T[5;0] are the lowest 6 bits of Counter.
- (+) 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
- (+) Typical values:
- (++) Counter min (T[5;0] = 0x00) @56MHz (PCLK1) with zero prescaler:
- max timeout before reset: approximately 73.14µs
- (++) Counter max (T[5;0] = 0x3F) @56MHz (PCLK1) with prescaler dividing by 8:
- max timeout before reset: approximately 599.18ms
-
- ==============================================================================
- ##### How to use this driver #####
- ==============================================================================
-
- *** Common driver usage ***
- ===========================
-
- [..]
- (+) 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 callback 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.
-
- *** Callback registration ***
- =============================
-
- [..]
- The compilation define USE_HAL_WWDG_REGISTER_CALLBACKS when set to 1 allows
- the user to configure dynamically the driver callbacks. Use Functions
- @ref HAL_WWDG_RegisterCallback() to register a user callback.
-
- (+) Function @ref HAL_WWDG_RegisterCallback() allows to register following
- callbacks:
- (++) EwiCallback : callback for Early WakeUp Interrupt.
- (++) MspInitCallback : WWDG MspInit.
- This function takes as parameters the HAL peripheral handle, the Callback ID
- and a pointer to the user callback function.
-
- (+) Use function @ref HAL_WWDG_UnRegisterCallback() to reset a callback to
- the default weak (surcharged) function. @ref HAL_WWDG_UnRegisterCallback()
- takes as parameters the HAL peripheral handle and the Callback ID.
- This function allows to reset following callbacks:
- (++) EwiCallback : callback for Early WakeUp Interrupt.
- (++) MspInitCallback : WWDG MspInit.
-
- [..]
- When calling @ref HAL_WWDG_Init function, callbacks are reset to the
- corresponding legacy weak (surcharged) functions:
- @ref HAL_WWDG_EarlyWakeupCallback() and HAL_WWDG_MspInit() only if they have
- not been registered before.
-
- [..]
- When compilation define USE_HAL_WWDG_REGISTER_CALLBACKS is set to 0 or
- not defined, the callback registering feature is not available
- and weak (surcharged) callbacks are used.
-
- *** 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: Enable the WWDG early wakeup interrupt
-
- @endverbatim
- ******************************************************************************
- * @attention
- *
- * <h2><center>© Copyright (c) 2016 STMicroelectronics.
- * All rights reserved.</center></h2>
- *
- * This software component is licensed by ST under BSD 3-Clause license,
- * the "License"; You may not use this file except in compliance with the
- * License. You may obtain a copy of the License at:
- * opensource.org/licenses/BSD-3-Clause
- *
- ******************************************************************************
- */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f0xx_hal.h"
-
-/** @addtogroup STM32F0xx_HAL_Driver
- * @{
- */
-
-#ifdef HAL_WWDG_MODULE_ENABLED
-/** @defgroup WWDG WWDG
- * @brief WWDG HAL module driver.
- * @{
- */
-
-/* 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 Configuration functions
- * @brief Initialization and Configuration functions.
- *
-@verbatim
- ==============================================================================
- ##### Initialization and Configuration functions #####
- ==============================================================================
- [..]
- This section provides functions allowing to:
- (+) Initialize and start the WWDG according to the specified parameters
- in the WWDG_InitTypeDef of associated handle.
- (+) Initialize the WWDG MSP.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Initialize the WWDG according to the specified.
- * parameters in the WWDG_InitTypeDef of 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));
- assert_param(IS_WWDG_EWI_MODE(hwwdg->Init.EWIMode));
-
-#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
- /* Reset Callback pointers */
- if (hwwdg->EwiCallback == NULL)
- {
- hwwdg->EwiCallback = HAL_WWDG_EarlyWakeupCallback;
- }
-
- if (hwwdg->MspInitCallback == NULL)
- {
- hwwdg->MspInitCallback = HAL_WWDG_MspInit;
- }
-
- /* Init the low level hardware */
- hwwdg->MspInitCallback(hwwdg);
-#else
- /* Init the low level hardware */
- HAL_WWDG_MspInit(hwwdg);
-#endif
-
- /* Set WWDG Counter */
- WRITE_REG(hwwdg->Instance->CR, (WWDG_CR_WDGA | hwwdg->Init.Counter));
-
- /* Set WWDG Prescaler and Window */
- WRITE_REG(hwwdg->Instance->CFR, (hwwdg->Init.EWIMode | hwwdg->Init.Prescaler | hwwdg->Init.Window));
-
- /* Return function status */
- return HAL_OK;
-}
-
-
-/**
- * @brief Initialize the WWDG MSP.
- * @param hwwdg pointer to a WWDG_HandleTypeDef structure that contains
- * the configuration information for the specified WWDG module.
- * @note When rewriting this function in user file, mechanism may be added
- * to avoid multiple initialize when HAL_WWDG_Init function is called
- * again to change parameters.
- * @retval None
- */
-__weak void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hwwdg);
-
- /* NOTE: This function should not be modified, when the callback is needed,
- the HAL_WWDG_MspInit could be implemented in the user file
- */
-}
-
-
-#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
-/**
- * @brief Register a User WWDG Callback
- * To be used instead of the weak (surcharged) predefined callback
- * @param hwwdg WWDG handle
- * @param CallbackID ID of the callback to be registered
- * This parameter can be one of the following values:
- * @arg @ref HAL_WWDG_EWI_CB_ID Early WakeUp Interrupt Callback ID
- * @arg @ref HAL_WWDG_MSPINIT_CB_ID MspInit callback ID
- * @param pCallback pointer to the Callback function
- * @retval status
- */
-HAL_StatusTypeDef HAL_WWDG_RegisterCallback(WWDG_HandleTypeDef *hwwdg, HAL_WWDG_CallbackIDTypeDef CallbackID, pWWDG_CallbackTypeDef pCallback)
-{
- HAL_StatusTypeDef status = HAL_OK;
-
- if (pCallback == NULL)
- {
- status = HAL_ERROR;
- }
- else
- {
- switch (CallbackID)
- {
- case HAL_WWDG_EWI_CB_ID:
- hwwdg->EwiCallback = pCallback;
- break;
-
- case HAL_WWDG_MSPINIT_CB_ID:
- hwwdg->MspInitCallback = pCallback;
- break;
-
- default:
- status = HAL_ERROR;
- break;
- }
- }
-
- return status;
-}
-
-
-/**
- * @brief Unregister a WWDG Callback
- * WWDG Callback is redirected to the weak (surcharged) predefined callback
- * @param hwwdg WWDG handle
- * @param CallbackID ID of the callback to be registered
- * This parameter can be one of the following values:
- * @arg @ref HAL_WWDG_EWI_CB_ID Early WakeUp Interrupt Callback ID
- * @arg @ref HAL_WWDG_MSPINIT_CB_ID MspInit callback ID
- * @retval status
- */
-HAL_StatusTypeDef HAL_WWDG_UnRegisterCallback(WWDG_HandleTypeDef *hwwdg, HAL_WWDG_CallbackIDTypeDef CallbackID)
-{
- HAL_StatusTypeDef status = HAL_OK;
-
- switch (CallbackID)
- {
- case HAL_WWDG_EWI_CB_ID:
- hwwdg->EwiCallback = HAL_WWDG_EarlyWakeupCallback;
- break;
-
- case HAL_WWDG_MSPINIT_CB_ID:
- hwwdg->MspInitCallback = HAL_WWDG_MspInit;
- break;
-
- default:
- status = HAL_ERROR;
- break;
- }
-
- return status;
-}
-#endif
-
-/**
- * @}
- */
-
-/** @defgroup WWDG_Exported_Functions_Group2 IO operation functions
- * @brief IO operation functions
- *
-@verbatim
- ==============================================================================
- ##### IO operation functions #####
- ==============================================================================
- [..]
- This section provides functions allowing to:
- (+) Refresh the WWDG.
- (+) Handle WWDG interrupt request and associated function callback.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Refresh 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_Refresh(WWDG_HandleTypeDef *hwwdg)
-{
- /* Write to WWDG CR the WWDG Counter value to refresh with */
- WRITE_REG(hwwdg->Instance->CR, (hwwdg->Init.Counter));
-
- /* Return function status */
- return HAL_OK;
-}
-
-/**
- * @brief Handle 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 by calling HAL_WWDG_Init function with
- * EWIMode set to WWDG_EWI_ENABLE.
- * 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)
- {
- /* Clear the WWDG Early Wakeup flag */
- __HAL_WWDG_CLEAR_FLAG(hwwdg, WWDG_FLAG_EWIF);
-
-#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
- /* Early Wakeup registered callback */
- hwwdg->EwiCallback(hwwdg);
-#else
- /* Early Wakeup callback */
- HAL_WWDG_EarlyWakeupCallback(hwwdg);
-#endif
- }
- }
-}
-
-
-/**
- * @brief WWDG Early Wakeup 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_EarlyWakeupCallback(WWDG_HandleTypeDef *hwwdg)
-{
- /* Prevent unused argument(s) compilation warning */
- UNUSED(hwwdg);
-
- /* NOTE: This function should not be modified, when the callback is needed,
- the HAL_WWDG_EarlyWakeupCallback could be implemented in the user file
- */
-}
-
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-#endif /* HAL_WWDG_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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