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1、W5500增加Keep-Alive机制检测通讯超时（解决主机突然断网，造成主控一直处于假链接的状态）；
2、设备添加子控后自动跳转到最后一页；

屏幕：V1.2
1、修复修改波特率时，会误触发返回和保存按键；
This commit is contained in:
guanyejian
2026-04-23 17:23:33 +08:00
parent c185b3d8b9
commit a736476c17
21 changed files with 32446 additions and 0 deletions
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220
leakage_system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_iwdg.h Normal file
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/**
******************************************************************************
* @file stm32f4xx_hal_iwdg.h
* @author MCD Application Team
* @brief Header file of IWDG HAL module.
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F4xx_HAL_IWDG_H
#define STM32F4xx_HAL_IWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal_def.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
/** @defgroup IWDG IWDG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup IWDG_Exported_Types IWDG Exported Types
* @{
*/
/**
* @brief IWDG Init structure definition
*/
typedef struct
{
uint32_t Prescaler; /*!< Select the prescaler of the IWDG.
This parameter can be a value of @ref IWDG_Prescaler */
uint32_t Reload; /*!< Specifies the IWDG down-counter reload value.
This parameter must be a number between Min_Data = 0 and Max_Data = 0x0FFF */
} IWDG_InitTypeDef;
/**
* @brief IWDG Handle Structure definition
*/
typedef struct
{
IWDG_TypeDef *Instance; /*!< Register base address */
IWDG_InitTypeDef Init; /*!< IWDG required parameters */
} IWDG_HandleTypeDef;
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup IWDG_Exported_Constants IWDG Exported Constants
* @{
*/
/** @defgroup IWDG_Prescaler IWDG Prescaler
* @{
*/
#define IWDG_PRESCALER_4 0x00000000u /*!< IWDG prescaler set to 4 */
#define IWDG_PRESCALER_8 IWDG_PR_PR_0 /*!< IWDG prescaler set to 8 */
#define IWDG_PRESCALER_16 IWDG_PR_PR_1 /*!< IWDG prescaler set to 16 */
#define IWDG_PRESCALER_32 (IWDG_PR_PR_1 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 32 */
#define IWDG_PRESCALER_64 IWDG_PR_PR_2 /*!< IWDG prescaler set to 64 */
#define IWDG_PRESCALER_128 (IWDG_PR_PR_2 | IWDG_PR_PR_0) /*!< IWDG prescaler set to 128 */
#define IWDG_PRESCALER_256 (IWDG_PR_PR_2 | IWDG_PR_PR_1) /*!< IWDG prescaler set to 256 */
/**
* @}
*/
/**
* @}
*/
/* Exported macros -----------------------------------------------------------*/
/** @defgroup IWDG_Exported_Macros IWDG Exported Macros
* @{
*/
/**
* @brief Enable the IWDG peripheral.
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define __HAL_IWDG_START(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_ENABLE)
/**
* @brief Reload IWDG counter with value defined in the reload register
* (write access to IWDG_PR and IWDG_RLR registers disabled).
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define __HAL_IWDG_RELOAD_COUNTER(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD)
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup IWDG_Exported_Functions IWDG Exported Functions
* @{
*/
/** @defgroup IWDG_Exported_Functions_Group1 Initialization and Start functions
* @{
*/
/* Initialization/Start functions ********************************************/
HAL_StatusTypeDef HAL_IWDG_Init(IWDG_HandleTypeDef *hiwdg);
/**
* @}
*/
/** @defgroup IWDG_Exported_Functions_Group2 IO operation functions
* @{
*/
/* I/O operation functions ****************************************************/
HAL_StatusTypeDef HAL_IWDG_Refresh(IWDG_HandleTypeDef *hiwdg);
/**
* @}
*/
/**
* @}
*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup IWDG_Private_Constants IWDG Private Constants
* @{
*/
/**
* @brief IWDG Key Register BitMask
*/
#define IWDG_KEY_RELOAD 0x0000AAAAu /*!< IWDG Reload Counter Enable */
#define IWDG_KEY_ENABLE 0x0000CCCCu /*!< IWDG Peripheral Enable */
#define IWDG_KEY_WRITE_ACCESS_ENABLE 0x00005555u /*!< IWDG KR Write Access Enable */
#define IWDG_KEY_WRITE_ACCESS_DISABLE 0x00000000u /*!< IWDG KR Write Access Disable */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup IWDG_Private_Macros IWDG Private Macros
* @{
*/
/**
* @brief Enable write access to IWDG_PR and IWDG_RLR registers.
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define IWDG_ENABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_ENABLE)
/**
* @brief Disable write access to IWDG_PR and IWDG_RLR registers.
* @param __HANDLE__ IWDG handle
* @retval None
*/
#define IWDG_DISABLE_WRITE_ACCESS(__HANDLE__) WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_DISABLE)
/**
* @brief Check IWDG prescaler value.
* @param __PRESCALER__ IWDG prescaler value
* @retval None
*/
#define IS_IWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == IWDG_PRESCALER_4) || \
((__PRESCALER__) == IWDG_PRESCALER_8) || \
((__PRESCALER__) == IWDG_PRESCALER_16) || \
((__PRESCALER__) == IWDG_PRESCALER_32) || \
((__PRESCALER__) == IWDG_PRESCALER_64) || \
((__PRESCALER__) == IWDG_PRESCALER_128)|| \
((__PRESCALER__) == IWDG_PRESCALER_256))
/**
* @brief Check IWDG reload value.
* @param __RELOAD__ IWDG reload value
* @retval None
*/
#define IS_IWDG_RELOAD(__RELOAD__) ((__RELOAD__) <= IWDG_RLR_RL)
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32F4xx_HAL_IWDG_H */

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leakage_system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_iwdg.h Normal file
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/**
******************************************************************************
* @file stm32f4xx_ll_iwdg.h
* @author MCD Application Team
* @brief Header file of IWDG LL module.
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F4xx_LL_IWDG_H
#define STM32F4xx_LL_IWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"
/** @addtogroup STM32F4xx_LL_Driver
* @{
*/
#if defined(IWDG)
/** @defgroup IWDG_LL IWDG
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup IWDG_LL_Private_Constants IWDG Private Constants
* @{
*/
#define LL_IWDG_KEY_RELOAD 0x0000AAAAU /*!< IWDG Reload Counter Enable */
#define LL_IWDG_KEY_ENABLE 0x0000CCCCU /*!< IWDG Peripheral Enable */
#define LL_IWDG_KEY_WR_ACCESS_ENABLE 0x00005555U /*!< IWDG KR Write Access Enable */
#define LL_IWDG_KEY_WR_ACCESS_DISABLE 0x00000000U /*!< IWDG KR Write Access Disable */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup IWDG_LL_Exported_Constants IWDG Exported Constants
* @{
*/
/** @defgroup IWDG_LL_EC_GET_FLAG Get Flags Defines
* @brief Flags defines which can be used with LL_IWDG_ReadReg function
* @{
*/
#define LL_IWDG_SR_PVU IWDG_SR_PVU /*!< Watchdog prescaler value update */
#define LL_IWDG_SR_RVU IWDG_SR_RVU /*!< Watchdog counter reload value update */
/**
* @}
*/
/** @defgroup IWDG_LL_EC_PRESCALER Prescaler Divider
* @{
*/
#define LL_IWDG_PRESCALER_4 0x00000000U /*!< Divider by 4 */
#define LL_IWDG_PRESCALER_8 (IWDG_PR_PR_0) /*!< Divider by 8 */
#define LL_IWDG_PRESCALER_16 (IWDG_PR_PR_1) /*!< Divider by 16 */
#define LL_IWDG_PRESCALER_32 (IWDG_PR_PR_1 | IWDG_PR_PR_0) /*!< Divider by 32 */
#define LL_IWDG_PRESCALER_64 (IWDG_PR_PR_2) /*!< Divider by 64 */
#define LL_IWDG_PRESCALER_128 (IWDG_PR_PR_2 | IWDG_PR_PR_0) /*!< Divider by 128 */
#define LL_IWDG_PRESCALER_256 (IWDG_PR_PR_2 | IWDG_PR_PR_1) /*!< Divider by 256 */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup IWDG_LL_Exported_Macros IWDG Exported Macros
* @{
*/
/** @defgroup IWDG_LL_EM_WRITE_READ Common Write and read registers Macros
* @{
*/
/**
* @brief Write a value in IWDG register
* @param __INSTANCE__ IWDG Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_IWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in IWDG register
* @param __INSTANCE__ IWDG Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_IWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup IWDG_LL_Exported_Functions IWDG Exported Functions
* @{
*/
/** @defgroup IWDG_LL_EF_Configuration Configuration
* @{
*/
/**
* @brief Start the Independent Watchdog
* @note Except if the hardware watchdog option is selected
* @rmtoll KR KEY LL_IWDG_Enable
* @param IWDGx IWDG Instance
* @retval None
*/
__STATIC_INLINE void LL_IWDG_Enable(IWDG_TypeDef *IWDGx)
{
WRITE_REG(IWDGx->KR, LL_IWDG_KEY_ENABLE);
}
/**
* @brief Reloads IWDG counter with value defined in the reload register
* @rmtoll KR KEY LL_IWDG_ReloadCounter
* @param IWDGx IWDG Instance
* @retval None
*/
__STATIC_INLINE void LL_IWDG_ReloadCounter(IWDG_TypeDef *IWDGx)
{
WRITE_REG(IWDGx->KR, LL_IWDG_KEY_RELOAD);
}
/**
* @brief Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers
* @rmtoll KR KEY LL_IWDG_EnableWriteAccess
* @param IWDGx IWDG Instance
* @retval None
*/
__STATIC_INLINE void LL_IWDG_EnableWriteAccess(IWDG_TypeDef *IWDGx)
{
WRITE_REG(IWDGx->KR, LL_IWDG_KEY_WR_ACCESS_ENABLE);
}
/**
* @brief Disable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers
* @rmtoll KR KEY LL_IWDG_DisableWriteAccess
* @param IWDGx IWDG Instance
* @retval None
*/
__STATIC_INLINE void LL_IWDG_DisableWriteAccess(IWDG_TypeDef *IWDGx)
{
WRITE_REG(IWDGx->KR, LL_IWDG_KEY_WR_ACCESS_DISABLE);
}
/**
* @brief Select the prescaler of the IWDG
* @rmtoll PR PR LL_IWDG_SetPrescaler
* @param IWDGx IWDG Instance
* @param Prescaler This parameter can be one of the following values:
* @arg @ref LL_IWDG_PRESCALER_4
* @arg @ref LL_IWDG_PRESCALER_8
* @arg @ref LL_IWDG_PRESCALER_16
* @arg @ref LL_IWDG_PRESCALER_32
* @arg @ref LL_IWDG_PRESCALER_64
* @arg @ref LL_IWDG_PRESCALER_128
* @arg @ref LL_IWDG_PRESCALER_256
* @retval None
*/
__STATIC_INLINE void LL_IWDG_SetPrescaler(IWDG_TypeDef *IWDGx, uint32_t Prescaler)
{
WRITE_REG(IWDGx->PR, IWDG_PR_PR & Prescaler);
}
/**
* @brief Get the selected prescaler of the IWDG
* @rmtoll PR PR LL_IWDG_GetPrescaler
* @param IWDGx IWDG Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_IWDG_PRESCALER_4
* @arg @ref LL_IWDG_PRESCALER_8
* @arg @ref LL_IWDG_PRESCALER_16
* @arg @ref LL_IWDG_PRESCALER_32
* @arg @ref LL_IWDG_PRESCALER_64
* @arg @ref LL_IWDG_PRESCALER_128
* @arg @ref LL_IWDG_PRESCALER_256
*/
__STATIC_INLINE uint32_t LL_IWDG_GetPrescaler(const IWDG_TypeDef *IWDGx)
{
return (READ_REG(IWDGx->PR));
}
/**
* @brief Specify the IWDG down-counter reload value
* @rmtoll RLR RL LL_IWDG_SetReloadCounter
* @param IWDGx IWDG Instance
* @param Counter Value between Min_Data=0 and Max_Data=0x0FFF
* @retval None
*/
__STATIC_INLINE void LL_IWDG_SetReloadCounter(IWDG_TypeDef *IWDGx, uint32_t Counter)
{
WRITE_REG(IWDGx->RLR, IWDG_RLR_RL & Counter);
}
/**
* @brief Get the specified IWDG down-counter reload value
* @rmtoll RLR RL LL_IWDG_GetReloadCounter
* @param IWDGx IWDG Instance
* @retval Value between Min_Data=0 and Max_Data=0x0FFF
*/
__STATIC_INLINE uint32_t LL_IWDG_GetReloadCounter(const IWDG_TypeDef *IWDGx)
{
return (READ_REG(IWDGx->RLR));
}
/**
* @}
*/
/** @defgroup IWDG_LL_EF_FLAG_Management FLAG_Management
* @{
*/
/**
* @brief Check if flag Prescaler Value Update is set or not
* @rmtoll SR PVU LL_IWDG_IsActiveFlag_PVU
* @param IWDGx IWDG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_PVU(const IWDG_TypeDef *IWDGx)
{
return ((READ_BIT(IWDGx->SR, IWDG_SR_PVU) == (IWDG_SR_PVU)) ? 1UL : 0UL);
}
/**
* @brief Check if flag Reload Value Update is set or not
* @rmtoll SR RVU LL_IWDG_IsActiveFlag_RVU
* @param IWDGx IWDG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_RVU(const IWDG_TypeDef *IWDGx)
{
return ((READ_BIT(IWDGx->SR, IWDG_SR_RVU) == (IWDG_SR_RVU)) ? 1UL : 0UL);
}
/**
* @brief Check if flags Prescaler & Reload Value Update are reset or not
* @rmtoll SR PVU LL_IWDG_IsReady\n
* SR RVU LL_IWDG_IsReady
* @param IWDGx IWDG Instance
* @retval State of bits (1 or 0).
*/
__STATIC_INLINE uint32_t LL_IWDG_IsReady(const IWDG_TypeDef *IWDGx)
{
return ((READ_BIT(IWDGx->SR, IWDG_SR_PVU | IWDG_SR_RVU) == 0U) ? 1UL : 0UL);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* IWDG */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32F4xx_LL_IWDG_H */

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leakage_system/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_spi.h Normal file
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leakage_system/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_iwdg.c Normal file
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/**
******************************************************************************
* @file stm32f4xx_hal_iwdg.c
* @author MCD Application Team
* @brief IWDG HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Independent Watchdog (IWDG) peripheral:
* + Initialization and Start functions
* + IO operation functions
*
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
@verbatim
==============================================================================
##### IWDG Generic features #####
==============================================================================
[..]
(+) The IWDG can be started by either software or hardware (configurable
through option byte).
(+) The IWDG is clocked by the Low-Speed Internal clock (LSI) and thus stays
active even if the main clock fails.
(+) Once the IWDG is started, the LSI is forced ON and both cannot be
disabled. The counter starts counting down from the reset value (0xFFF).
When it reaches the end of count value (0x000) a reset signal is
generated (IWDG reset).
(+) Whenever the key value 0x0000 AAAA is written in the IWDG_KR register,
the IWDG_RLR value is reloaded into the counter and the watchdog reset
is prevented.
(+) The IWDG is implemented in the VDD voltage domain that is still functional
in STOP and STANDBY mode (IWDG reset can wake up the CPU from STANDBY).
IWDGRST flag in RCC_CSR register can be used to inform when an IWDG
reset occurs.
(+) Debug mode: When the microcontroller enters debug mode (core halted),
the IWDG counter either continues to work normally or stops, depending
on DBG_IWDG_STOP configuration bit in DBG module, accessible through
__HAL_DBGMCU_FREEZE_IWDG() and __HAL_DBGMCU_UNFREEZE_IWDG() macros.
[..] Min-max timeout value @32KHz (LSI): ~125us / ~32.7s
The IWDG timeout may vary due to LSI clock frequency dispersion.
STM32F4xx devices provide the capability to measure the LSI clock
frequency (LSI clock is internally connected to TIM5 CH4 input capture).
The measured value can be used to have an IWDG timeout with an
acceptable accuracy.
[..] Default timeout value (necessary for IWDG_SR status register update):
Constant LSI_VALUE is defined based on the nominal LSI clock frequency.
This frequency being subject to variations as mentioned above, the
default timeout value (defined through constant HAL_IWDG_DEFAULT_TIMEOUT
below) may become too short or too long.
In such cases, this default timeout value can be tuned by redefining
the constant LSI_VALUE at user-application level (based, for instance,
on the measured LSI clock frequency as explained above).
##### How to use this driver #####
==============================================================================
[..]
(#) Use IWDG using HAL_IWDG_Init() function to :
(++) Enable instance by writing Start keyword in IWDG_KEY register. LSI
clock is forced ON and IWDG counter starts counting down.
(++) Enable write access to configuration registers:
IWDG_PR and IWDG_RLR.
(++) Configure the IWDG prescaler and counter reload value. This reload
value will be loaded in the IWDG counter each time the watchdog is
reloaded, then the IWDG will start counting down from this value.
(++) Wait for status flags to be reset.
(#) 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
@endverbatim
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_hal.h"
/** @addtogroup STM32F4xx_HAL_Driver
* @{
*/
#ifdef HAL_IWDG_MODULE_ENABLED
/** @addtogroup IWDG
* @brief IWDG HAL module driver.
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/** @defgroup IWDG_Private_Defines IWDG Private Defines
* @{
*/
/* Status register needs up to 5 LSI clock periods divided by the clock
prescaler to be updated. The number of LSI clock periods is upper-rounded to
6 for the timeout value calculation.
The timeout value is calculated using the highest prescaler (256) and
the LSI_VALUE constant. The value of this constant can be changed by the user
to take into account possible LSI clock period variations.
The timeout value is multiplied by 1000 to be converted in milliseconds.
LSI startup time is also considered here by adding LSI_STARTUP_TIME
converted in milliseconds. */
#define HAL_IWDG_DEFAULT_TIMEOUT (((6UL * 256UL * 1000UL) / (LSI_VALUE / 128U)) + \
((LSI_STARTUP_TIME / 1000UL) + 1UL))
#define IWDG_KERNEL_UPDATE_FLAGS (IWDG_SR_RVU | IWDG_SR_PVU)
/**
* @}
*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup IWDG_Exported_Functions
* @{
*/
/** @addtogroup IWDG_Exported_Functions_Group1
* @brief Initialization and Start functions.
*
@verbatim
===============================================================================
##### Initialization and Start functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Initialize the IWDG according to the specified parameters in the
IWDG_InitTypeDef of associated handle.
(+) Once initialization is performed in HAL_IWDG_Init function, Watchdog
is reloaded in order to exit function with correct time base.
@endverbatim
* @{
*/
/**
* @brief Initialize the IWDG according to the specified parameters in the
* IWDG_InitTypeDef and start watchdog. Before exiting function,
* watchdog is refreshed in order to have correct time base.
* @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)
{
uint32_t tickstart;
/* 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));
/* Enable IWDG. LSI is turned on automatically */
__HAL_IWDG_START(hiwdg);
/* Enable write access to IWDG_PR and IWDG_RLR registers by writing
0x5555 in KR */
IWDG_ENABLE_WRITE_ACCESS(hiwdg);
/* Write to IWDG registers the Prescaler & Reload values to work with */
hiwdg->Instance->PR = hiwdg->Init.Prescaler;
hiwdg->Instance->RLR = hiwdg->Init.Reload;
/* Check pending flag, if previous update not done, return timeout */
tickstart = HAL_GetTick();
/* Wait for register to be updated */
while ((hiwdg->Instance->SR & IWDG_KERNEL_UPDATE_FLAGS) != 0x00u)
{
if ((HAL_GetTick() - tickstart) > HAL_IWDG_DEFAULT_TIMEOUT)
{
if ((hiwdg->Instance->SR & IWDG_KERNEL_UPDATE_FLAGS) != 0x00u)
{
return HAL_TIMEOUT;
}
}
}
/* Reload IWDG counter with value defined in the reload register */
__HAL_IWDG_RELOAD_COUNTER(hiwdg);
/* Return function status */
return HAL_OK;
}
/**
* @}
*/
/** @addtogroup IWDG_Exported_Functions_Group2
* @brief IO operation functions
*
@verbatim
===============================================================================
##### IO operation functions #####
===============================================================================
[..] This section provides functions allowing to:
(+) Refresh the IWDG.
@endverbatim
* @{
*/
/**
* @brief Refresh 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)
{
/* Reload IWDG counter with value defined in the reload register */
__HAL_IWDG_RELOAD_COUNTER(hiwdg);
/* Return function status */
return HAL_OK;
}
/**
* @}
*/
/**
* @}
*/
#endif /* HAL_IWDG_MODULE_ENABLED */
/**
* @}
*/
/**
* @}
*/