enable IWDG, WWDG

reset if we get stuck for more than ~120 ms
This commit is contained in:
Kilian Bracher 2025-06-06 18:08:02 +02:00
parent e5739bc2d4
commit c4c1a76e51
14 changed files with 2120 additions and 48 deletions

File diff suppressed because one or more lines are too long

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@ -61,7 +61,7 @@
/* #define HAL_OSPI_MODULE_ENABLED */ /* #define HAL_OSPI_MODULE_ENABLED */
/* #define HAL_I2S_MODULE_ENABLED */ /* #define HAL_I2S_MODULE_ENABLED */
/* #define HAL_SMBUS_MODULE_ENABLED */ /* #define HAL_SMBUS_MODULE_ENABLED */
/* #define HAL_IWDG_MODULE_ENABLED */ #define HAL_IWDG_MODULE_ENABLED
/* #define HAL_LPTIM_MODULE_ENABLED */ /* #define HAL_LPTIM_MODULE_ENABLED */
/* #define HAL_LTDC_MODULE_ENABLED */ /* #define HAL_LTDC_MODULE_ENABLED */
/* #define HAL_QSPI_MODULE_ENABLED */ /* #define HAL_QSPI_MODULE_ENABLED */
@ -79,7 +79,7 @@
/* #define HAL_USART_MODULE_ENABLED */ /* #define HAL_USART_MODULE_ENABLED */
/* #define HAL_IRDA_MODULE_ENABLED */ /* #define HAL_IRDA_MODULE_ENABLED */
/* #define HAL_SMARTCARD_MODULE_ENABLED */ /* #define HAL_SMARTCARD_MODULE_ENABLED */
/* #define HAL_WWDG_MODULE_ENABLED */ #define HAL_WWDG_MODULE_ENABLED
/* #define HAL_PCD_MODULE_ENABLED */ /* #define HAL_PCD_MODULE_ENABLED */
/* #define HAL_HCD_MODULE_ENABLED */ /* #define HAL_HCD_MODULE_ENABLED */
/* #define HAL_DFSDM_MODULE_ENABLED */ /* #define HAL_DFSDM_MODULE_ENABLED */

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@ -55,6 +55,7 @@ void SVC_Handler(void);
void DebugMon_Handler(void); void DebugMon_Handler(void);
void PendSV_Handler(void); void PendSV_Handler(void);
void SysTick_Handler(void); void SysTick_Handler(void);
void WWDG_IRQHandler(void);
void FDCAN1_IT0_IRQHandler(void); void FDCAN1_IT0_IRQHandler(void);
/* USER CODE BEGIN EFP */ /* USER CODE BEGIN EFP */

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@ -24,6 +24,9 @@
#include "battery.h" #include "battery.h"
#include "isotp.h" #include "isotp.h"
#include "isotp_log_backend.h" #include "isotp_log_backend.h"
#include "log.h"
#include "stm32h7xx_hal_rcc.h"
#include <stdint.h>
#define SWO_LOG_PREFIX "[MAIN] " #define SWO_LOG_PREFIX "[MAIN] "
#include "swo_log.h" #include "swo_log.h"
@ -59,11 +62,15 @@ ADC_HandleTypeDef hadc2;
FDCAN_HandleTypeDef hfdcan1; FDCAN_HandleTypeDef hfdcan1;
IWDG_HandleTypeDef hiwdg1;
SPI_HandleTypeDef hspi1; SPI_HandleTypeDef hspi1;
SPI_HandleTypeDef hspi2; SPI_HandleTypeDef hspi2;
TIM_HandleTypeDef htim15; TIM_HandleTypeDef htim15;
WWDG_HandleTypeDef hwwdg1;
/* USER CODE BEGIN PV */ /* USER CODE BEGIN PV */
int sdc_closed = 0; int sdc_closed = 0;
@ -87,6 +94,8 @@ static void MX_SPI1_Init(void);
static void MX_SPI2_Init(void); static void MX_SPI2_Init(void);
static void MX_ADC1_Init(void); static void MX_ADC1_Init(void);
static void MX_ADC2_Init(void); static void MX_ADC2_Init(void);
static void MX_IWDG1_Init(void);
static void MX_WWDG1_Init(void);
/* USER CODE BEGIN PFP */ /* USER CODE BEGIN PFP */
void init_logging(void); void init_logging(void);
/* USER CODE END PFP */ /* USER CODE END PFP */
@ -94,11 +103,17 @@ void init_logging(void);
/* Private user code ---------------------------------------------------------*/ /* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */ /* USER CODE BEGIN 0 */
void HAL_WWDG_EarlyWakeupCallback(WWDG_HandleTypeDef *hwwdg) {
HAL_GPIO_WritePin(AMS_NERROR_GPIO_Port, AMS_NERROR_Pin, GPIO_PIN_RESET);
ts_sm_set_relay_positions(TS_ERROR);
}
#define MAIN_LOOP_PERIOD 50 #define MAIN_LOOP_PERIOD 50
#define ISO_TP_UPDATE_PERIOD 1 #define ISO_TP_UPDATE_PERIOD 1
static uint32_t last_loop = 0;
static void loop_delay() { static void loop_delay() {
static uint32_t last_loop = 0;
uint32_t dt = HAL_GetTick() - last_loop; uint32_t dt = HAL_GetTick() - last_loop;
while (dt < MAIN_LOOP_PERIOD) { while (dt < MAIN_LOOP_PERIOD) {
HAL_Delay(ISO_TP_UPDATE_PERIOD); HAL_Delay(ISO_TP_UPDATE_PERIOD);
@ -172,7 +187,12 @@ int main(void)
PeriphCommonClock_Config(); PeriphCommonClock_Config();
/* USER CODE BEGIN SysInit */ /* USER CODE BEGIN SysInit */
bool wdg_reset = false;
// Check if watchdog triggered the reset
if (__HAL_RCC_GET_FLAG(RCC_FLAG_WWDG1RST) || __HAL_RCC_GET_FLAG(RCC_FLAG_IWDG1RST)) {
wdg_reset = true;
__HAL_RCC_CLEAR_RESET_FLAGS();
}
/* USER CODE END SysInit */ /* USER CODE END SysInit */
/* Initialize all configured peripherals */ /* Initialize all configured peripherals */
@ -183,18 +203,10 @@ int main(void)
MX_SPI2_Init(); MX_SPI2_Init();
MX_ADC1_Init(); MX_ADC1_Init();
MX_ADC2_Init(); MX_ADC2_Init();
MX_IWDG1_Init();
MX_WWDG1_Init();
/* USER CODE BEGIN 2 */ /* USER CODE BEGIN 2 */
init_logging(); init_logging();
debug_clear_console();
debug_log(LOG_LEVEL_INFO, "AMS_Master on %s (%s), compiled at %s", COMMIT_BRANCH, COMMIT_HASH, COMPILE_DATE);
debug_log(LOG_LEVEL_INFO, "Starting BMS...");
auto ret = battery_init(&hspi1);
while (ret != HAL_OK) { //TODO: properly handle reapeated initialization failure
debug_log(LOG_LEVEL_ERROR, "Failed to initialize BMS!");
HAL_Delay(100);
debug_log(LOG_LEVEL_INFO, "Retrying BMS initialization...");
ret = battery_init(&hspi1);
}
// init for master functions // init for master functions
can_init(&hfdcan1); can_init(&hfdcan1);
@ -203,6 +215,21 @@ int main(void)
// for testing. in the final code can log streaming will be enabled by can message // for testing. in the final code can log streaming will be enabled by can message
isotp_log_enable_streaming(LOG_LEVEL_INFO); isotp_log_enable_streaming(LOG_LEVEL_INFO);
debug_clear_console();
debug_log(LOG_LEVEL_INFO, "AMS_Master on %s (%s), compiled at %s", COMMIT_BRANCH, COMMIT_HASH, COMPILE_DATE);
debug_log(LOG_LEVEL_INFO, "Starting BMS...");
if (wdg_reset) {
debug_log(LOG_LEVEL_WARNING, "Last reset was caused by watchdog!");
}
auto ret = battery_init(&hspi1);
while (ret != HAL_OK) { //TODO: properly handle reapeated initialization failure
debug_log(LOG_LEVEL_ERROR, "Failed to initialize BMS!");
HAL_Delay(100);
debug_log(LOG_LEVEL_INFO, "Retrying BMS initialization...");
ret = battery_init(&hspi1);
}
shunt_init(); shunt_init();
ts_sm_init(); ts_sm_init();
soc_init(); soc_init();
@ -214,31 +241,18 @@ int main(void)
/* Infinite loop */ /* Infinite loop */
/* USER CODE BEGIN WHILE */ /* USER CODE BEGIN WHILE */
int count = 0; int count = 0;
int error_count = 0; last_loop = HAL_GetTick();
debug_log(LOG_LEVEL_INFO, "Initialization complete, entering main loop...");
while (1) while (1)
{ {
isotp_log_process(); isotp_log_process();
isotp_update(); isotp_update();
//left over from slave communication test, could be nicer and in an additional function !!
if (error_count > 25) {
debug_log(LOG_LEVEL_ERROR, "Too many errors, restarting BMS...");
HAL_Delay(1000);
ret = battery_init(&hspi1);
while (ret != HAL_OK) {
debug_log(LOG_LEVEL_ERROR, "Failed to initialize BMS!");
HAL_Delay(1000);
debug_log(LOG_LEVEL_INFO, "Retrying BMS initialization...");
ret = battery_init(&hspi1);
}
error_count = 0;
}
update_sdc(); update_sdc();
update_tsal_signals(); update_tsal_signals();
if (battery_update() != HAL_OK) { battery_update();
error_count++;
}
if (count % 4 == 0) { if (count % 4 == 0) {
print_battery_info(); print_battery_info();
print_master_status(); print_master_status();
@ -257,6 +271,14 @@ int main(void)
/* USER CODE BEGIN 3 */ /* USER CODE BEGIN 3 */
count++; count++;
count &= 0b1111; // wrap around at 16 count &= 0b1111; // wrap around at 16
// Pet the watchdogs
if (HAL_IWDG_Refresh(&hiwdg1) != HAL_OK) {
debug_log(LOG_LEVEL_ERROR, "Failed to refresh IWDG!"); // probably impossible, but just in case
}
if (HAL_WWDG_Refresh(&hwwdg1) != HAL_OK) {
debug_log(LOG_LEVEL_ERROR, "Failed to refresh WWDG!");
}
} }
/* USER CODE END 3 */ /* USER CODE END 3 */
} }
@ -286,8 +308,9 @@ void SystemClock_Config(void)
/** Initializes the RCC Oscillators according to the specified parameters /** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure. * in the RCC_OscInitTypeDef structure.
*/ */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 1; RCC_OscInitStruct.PLL.PLLM = 1;
@ -528,6 +551,35 @@ static void MX_FDCAN1_Init(void)
} }
/**
* @brief IWDG1 Initialization Function
* @param None
* @retval None
*/
static void MX_IWDG1_Init(void)
{
/* USER CODE BEGIN IWDG1_Init 0 */
/* USER CODE END IWDG1_Init 0 */
/* USER CODE BEGIN IWDG1_Init 1 */
/* USER CODE END IWDG1_Init 1 */
hiwdg1.Instance = IWDG1;
hiwdg1.Init.Prescaler = IWDG_PRESCALER_8;
hiwdg1.Init.Window = 759;
hiwdg1.Init.Reload = 799;
if (HAL_IWDG_Init(&hiwdg1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN IWDG1_Init 2 */
/* USER CODE END IWDG1_Init 2 */
}
/** /**
* @brief SPI1 Initialization Function * @brief SPI1 Initialization Function
* @param None * @param None
@ -689,6 +741,36 @@ static void MX_TIM15_Init(void)
} }
/**
* @brief WWDG1 Initialization Function
* @param None
* @retval None
*/
static void MX_WWDG1_Init(void)
{
/* USER CODE BEGIN WWDG1_Init 0 */
/* USER CODE END WWDG1_Init 0 */
/* USER CODE BEGIN WWDG1_Init 1 */
/* USER CODE END WWDG1_Init 1 */
hwwdg1.Instance = WWDG1;
hwwdg1.Init.Prescaler = WWDG_PRESCALER_32;
hwwdg1.Init.Window = 119;
hwwdg1.Init.Counter = 124;
hwwdg1.Init.EWIMode = WWDG_EWI_ENABLE;
if (HAL_WWDG_Init(&hwwdg1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN WWDG1_Init 2 */
/* USER CODE END WWDG1_Init 2 */
}
/** /**
* @brief GPIO Initialization Function * @brief GPIO Initialization Function
* @param None * @param None

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@ -513,6 +513,32 @@ void HAL_TIM_IC_MspDeInit(TIM_HandleTypeDef* htim_ic)
} }
/**
* @brief WWDG MSP Initialization
* This function configures the hardware resources used in this example
* @param hwwdg: WWDG handle pointer
* @retval None
*/
void HAL_WWDG_MspInit(WWDG_HandleTypeDef* hwwdg)
{
if(hwwdg->Instance==WWDG1)
{
/* USER CODE BEGIN WWDG1_MspInit 0 */
/* USER CODE END WWDG1_MspInit 0 */
/* Peripheral clock enable */
__HAL_RCC_WWDG1_CLK_ENABLE();
/* WWDG1 interrupt Init */
HAL_NVIC_SetPriority(WWDG_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(WWDG_IRQn);
/* USER CODE BEGIN WWDG1_MspInit 1 */
/* USER CODE END WWDG1_MspInit 1 */
}
}
/* USER CODE BEGIN 1 */ /* USER CODE BEGIN 1 */
/* USER CODE END 1 */ /* USER CODE END 1 */

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@ -22,6 +22,7 @@
#include "stm32h7xx_it.h" #include "stm32h7xx_it.h"
/* Private includes ----------------------------------------------------------*/ /* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */ /* USER CODE BEGIN Includes */
#include "log.h"
/* USER CODE END Includes */ /* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/ /* Private typedef -----------------------------------------------------------*/
@ -56,6 +57,7 @@
/* External variables --------------------------------------------------------*/ /* External variables --------------------------------------------------------*/
extern FDCAN_HandleTypeDef hfdcan1; extern FDCAN_HandleTypeDef hfdcan1;
extern WWDG_HandleTypeDef hwwdg1;
/* USER CODE BEGIN EV */ /* USER CODE BEGIN EV */
/* USER CODE END EV */ /* USER CODE END EV */
@ -198,6 +200,24 @@ void SysTick_Handler(void)
/* please refer to the startup file (startup_stm32h7xx.s). */ /* please refer to the startup file (startup_stm32h7xx.s). */
/******************************************************************************/ /******************************************************************************/
/**
* @brief This function handles Window watchdog interrupt.
*/
void WWDG_IRQHandler(void)
{
/* USER CODE BEGIN WWDG_IRQn 0 */
// Grab PC from the stack to log it
uint32_t *stack_pointer = (uint32_t *)__get_MSP();
uint32_t prev_pc = stack_pointer[6]; // PC is the 7th word in the stack frame
uint32_t prev_psr = stack_pointer[7]; // PSR is the 8th word in the stack frame
log_fatal("Watchdog triggered! PC: 0x%08lX, PSR: 0x%08lX", prev_pc, prev_psr);
/* USER CODE END WWDG_IRQn 0 */
HAL_WWDG_IRQHandler(&hwwdg1);
/* USER CODE BEGIN WWDG_IRQn 1 */
/* USER CODE END WWDG_IRQn 1 */
}
/** /**
* @brief This function handles FDCAN1 interrupt 0. * @brief This function handles FDCAN1 interrupt 0.
*/ */

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@ -0,0 +1,237 @@
/**
******************************************************************************
* @file stm32h7xx_hal_iwdg.h
* @author MCD Application Team
* @brief Header file of IWDG HAL module.
******************************************************************************
* @attention
*
* Copyright (c) 2017 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 STM32H7xx_HAL_IWDG_H
#define STM32H7xx_HAL_IWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_hal_def.h"
/** @addtogroup STM32H7xx_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 */
uint32_t Window; /*!< Specifies the window value to be compared to the down-counter.
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 */
/**
* @}
*/
/** @defgroup IWDG_Window_option IWDG Window option
* @{
*/
#define IWDG_WINDOW_DISABLE IWDG_WINR_WIN
/**
* @}
*/
/**
* @}
*/
/* 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, IWDG_RLR and IWDG_WINR 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, IWDG_RLR and IWDG_WINR 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, IWDG_RLR and IWDG_WINR 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)
/**
* @brief Check IWDG window value.
* @param __WINDOW__ IWDG window value
* @retval None
*/
#define IS_IWDG_WINDOW(__WINDOW__) ((__WINDOW__) <= IWDG_WINR_WIN)
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32H7xx_HAL_IWDG_H */

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@ -0,0 +1,307 @@
/**
******************************************************************************
* @file stm32h7xx_hal_wwdg.h
* @author MCD Application Team
* @brief Header file of WWDG HAL module.
******************************************************************************
* @attention
*
* Copyright (c) 2017 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 STM32H7xx_HAL_WWDG_H
#define STM32H7xx_HAL_WWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_hal_def.h"
/** @addtogroup STM32H7xx_HAL_Driver
* @{
*/
/** @addtogroup WWDG
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** @defgroup WWDG_Exported_Types WWDG Exported Types
* @{
*/
/**
* @brief WWDG Init structure definition
*/
typedef struct
{
uint32_t Prescaler; /*!< Specifies the prescaler value of the WWDG.
This parameter can be a value of @ref WWDG_Prescaler */
uint32_t Window; /*!< Specifies the WWDG window value to be compared to the downcounter.
This parameter must be a number Min_Data = 0x40 and Max_Data = 0x7F */
uint32_t Counter; /*!< Specifies the WWDG free-running downcounter value.
This parameter must be a number between Min_Data = 0x40 and Max_Data = 0x7F */
uint32_t EWIMode ; /*!< Specifies if WWDG Early Wakeup Interrupt is enable or not.
This parameter can be a value of @ref WWDG_EWI_Mode */
} WWDG_InitTypeDef;
/**
* @brief WWDG handle Structure definition
*/
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
typedef struct __WWDG_HandleTypeDef
#else
typedef struct
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
{
WWDG_TypeDef *Instance; /*!< Register base address */
WWDG_InitTypeDef Init; /*!< WWDG required parameters */
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
void (* EwiCallback)(struct __WWDG_HandleTypeDef *hwwdg); /*!< WWDG Early WakeUp Interrupt callback */
void (* MspInitCallback)(struct __WWDG_HandleTypeDef *hwwdg); /*!< WWDG Msp Init callback */
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
} WWDG_HandleTypeDef;
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
/**
* @brief HAL WWDG common Callback ID enumeration definition
*/
typedef enum
{
HAL_WWDG_EWI_CB_ID = 0x00U, /*!< WWDG EWI callback ID */
HAL_WWDG_MSPINIT_CB_ID = 0x01U, /*!< WWDG MspInit callback ID */
} HAL_WWDG_CallbackIDTypeDef;
/**
* @brief HAL WWDG Callback pointer definition
*/
typedef void (*pWWDG_CallbackTypeDef)(WWDG_HandleTypeDef *hppp); /*!< pointer to a WWDG common callback functions */
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
/**
* @}
*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup WWDG_Exported_Constants WWDG Exported Constants
* @{
*/
/** @defgroup WWDG_Interrupt_definition WWDG Interrupt definition
* @{
*/
#define WWDG_IT_EWI WWDG_CFR_EWI /*!< Early wakeup interrupt */
/**
* @}
*/
/** @defgroup WWDG_Flag_definition WWDG Flag definition
* @brief WWDG Flag definition
* @{
*/
#define WWDG_FLAG_EWIF WWDG_SR_EWIF /*!< Early wakeup interrupt flag */
/**
* @}
*/
/** @defgroup WWDG_Prescaler WWDG Prescaler
* @{
*/
#define WWDG_PRESCALER_1 0x00000000u /*!< WWDG counter clock = (PCLK1/4096)/1 */
#define WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
#define WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
#define WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_1 | WWDG_CFR_WDGTB_0) /*!< WWDG counter clock = (PCLK1/4096)/8 */
#define WWDG_PRESCALER_16 WWDG_CFR_WDGTB_2 /*!< WWDG counter clock = (PCLK1/4096)/16 */
#define WWDG_PRESCALER_32 (WWDG_CFR_WDGTB_2 | WWDG_CFR_WDGTB_0) /*!< WWDG counter clock = (PCLK1/4096)/32 */
#define WWDG_PRESCALER_64 (WWDG_CFR_WDGTB_2 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/64 */
#define WWDG_PRESCALER_128 WWDG_CFR_WDGTB /*!< WWDG counter clock = (PCLK1/4096)/128 */
/**
* @}
*/
/** @defgroup WWDG_EWI_Mode WWDG Early Wakeup Interrupt Mode
* @{
*/
#define WWDG_EWI_DISABLE 0x00000000u /*!< EWI Disable */
#define WWDG_EWI_ENABLE WWDG_CFR_EWI /*!< EWI Enable */
/**
* @}
*/
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup WWDG_Private_Macros WWDG Private Macros
* @{
*/
#define IS_WWDG_PRESCALER(__PRESCALER__) (((__PRESCALER__) == WWDG_PRESCALER_1) || \
((__PRESCALER__) == WWDG_PRESCALER_2) || \
((__PRESCALER__) == WWDG_PRESCALER_4) || \
((__PRESCALER__) == WWDG_PRESCALER_8) || \
((__PRESCALER__) == WWDG_PRESCALER_16) || \
((__PRESCALER__) == WWDG_PRESCALER_32) || \
((__PRESCALER__) == WWDG_PRESCALER_64) || \
((__PRESCALER__) == WWDG_PRESCALER_128))
#define IS_WWDG_WINDOW(__WINDOW__) (((__WINDOW__) >= WWDG_CFR_W_6) && ((__WINDOW__) <= WWDG_CFR_W))
#define IS_WWDG_COUNTER(__COUNTER__) (((__COUNTER__) >= WWDG_CR_T_6) && ((__COUNTER__) <= WWDG_CR_T))
#define IS_WWDG_EWI_MODE(__MODE__) (((__MODE__) == WWDG_EWI_ENABLE) || \
((__MODE__) == WWDG_EWI_DISABLE))
/**
* @}
*/
/* Exported macros ------------------------------------------------------------*/
/** @defgroup WWDG_Exported_Macros WWDG Exported Macros
* @{
*/
/**
* @brief Enable the WWDG peripheral.
* @param __HANDLE__ WWDG handle
* @retval None
*/
#define __HAL_WWDG_ENABLE(__HANDLE__) SET_BIT((__HANDLE__)->Instance->CR, WWDG_CR_WDGA)
/**
* @brief Enable the WWDG early wakeup interrupt.
* @param __HANDLE__: WWDG handle
* @param __INTERRUPT__ specifies the interrupt to enable.
* This parameter can be one of the following values:
* @arg WWDG_IT_EWI: Early wakeup interrupt
* @note Once enabled this interrupt cannot be disabled except by a system reset.
* @retval None
*/
#define __HAL_WWDG_ENABLE_IT(__HANDLE__, __INTERRUPT__) SET_BIT((__HANDLE__)->Instance->CFR, (__INTERRUPT__))
/**
* @brief Check whether the selected WWDG interrupt has occurred or not.
* @param __HANDLE__ WWDG handle
* @param __INTERRUPT__ specifies the it to check.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt IT
* @retval The new state of WWDG_FLAG (SET or RESET).
*/
#define __HAL_WWDG_GET_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_GET_FLAG((__HANDLE__),(__INTERRUPT__))
/** @brief Clear the WWDG interrupt pending bits.
* bits to clear the selected interrupt pending bits.
* @param __HANDLE__ WWDG handle
* @param __INTERRUPT__ specifies the interrupt pending bit to clear.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
*/
#define __HAL_WWDG_CLEAR_IT(__HANDLE__, __INTERRUPT__) __HAL_WWDG_CLEAR_FLAG((__HANDLE__), (__INTERRUPT__))
/**
* @brief Check whether the specified WWDG flag is set or not.
* @param __HANDLE__ WWDG handle
* @param __FLAG__ specifies the flag to check.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
* @retval The new state of WWDG_FLAG (SET or RESET).
*/
#define __HAL_WWDG_GET_FLAG(__HANDLE__, __FLAG__) (((__HANDLE__)->Instance->SR & (__FLAG__)) == (__FLAG__))
/**
* @brief Clear the WWDG's pending flags.
* @param __HANDLE__ WWDG handle
* @param __FLAG__ specifies the flag to clear.
* This parameter can be one of the following values:
* @arg WWDG_FLAG_EWIF: Early wakeup interrupt flag
* @retval None
*/
#define __HAL_WWDG_CLEAR_FLAG(__HANDLE__, __FLAG__) ((__HANDLE__)->Instance->SR = ~(__FLAG__))
/** @brief Check whether the specified WWDG interrupt source is enabled or not.
* @param __HANDLE__ WWDG Handle.
* @param __INTERRUPT__ specifies the WWDG interrupt source to check.
* This parameter can be one of the following values:
* @arg WWDG_IT_EWI: Early Wakeup Interrupt
* @retval state of __INTERRUPT__ (TRUE or FALSE).
*/
#define __HAL_WWDG_GET_IT_SOURCE(__HANDLE__, __INTERRUPT__) (((__HANDLE__)->Instance->CFR\
& (__INTERRUPT__)) == (__INTERRUPT__))
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup WWDG_Exported_Functions
* @{
*/
/** @addtogroup WWDG_Exported_Functions_Group1
* @{
*/
/* Initialization/de-initialization functions **********************************/
HAL_StatusTypeDef HAL_WWDG_Init(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_MspInit(WWDG_HandleTypeDef *hwwdg);
/* Callbacks Register/UnRegister functions ***********************************/
#if (USE_HAL_WWDG_REGISTER_CALLBACKS == 1)
HAL_StatusTypeDef HAL_WWDG_RegisterCallback(WWDG_HandleTypeDef *hwwdg, HAL_WWDG_CallbackIDTypeDef CallbackID,
pWWDG_CallbackTypeDef pCallback);
HAL_StatusTypeDef HAL_WWDG_UnRegisterCallback(WWDG_HandleTypeDef *hwwdg, HAL_WWDG_CallbackIDTypeDef CallbackID);
#endif /* USE_HAL_WWDG_REGISTER_CALLBACKS */
/**
* @}
*/
/** @addtogroup WWDG_Exported_Functions_Group2
* @{
*/
/* I/O operation functions ******************************************************/
HAL_StatusTypeDef HAL_WWDG_Refresh(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_IRQHandler(WWDG_HandleTypeDef *hwwdg);
void HAL_WWDG_EarlyWakeupCallback(WWDG_HandleTypeDef *hwwdg);
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32H7xx_HAL_WWDG_H */

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/**
******************************************************************************
* @file stm32h7xx_ll_iwdg.h
* @author MCD Application Team
* @brief Header file of IWDG LL module.
******************************************************************************
* @attention
*
* Copyright (c) 2017 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 STM32H7xx_LL_IWDG_H
#define STM32H7xx_LL_IWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx.h"
/** @addtogroup STM32H7xx_LL_Driver
* @{
*/
#if defined(IWDG1) || defined(IWDG2)
/** @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 */
#define LL_IWDG_SR_WVU IWDG_SR_WVU /*!< Watchdog counter window 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));
}
/**
* @brief Specify high limit of the window value to be compared to the down-counter.
* @rmtoll WINR WIN LL_IWDG_SetWindow
* @param IWDGx IWDG Instance
* @param Window Value between Min_Data=0 and Max_Data=0x0FFF
* @retval None
*/
__STATIC_INLINE void LL_IWDG_SetWindow(IWDG_TypeDef *IWDGx, uint32_t Window)
{
WRITE_REG(IWDGx->WINR, IWDG_WINR_WIN & Window);
}
/**
* @brief Get the high limit of the window value specified.
* @rmtoll WINR WIN LL_IWDG_GetWindow
* @param IWDGx IWDG Instance
* @retval Value between Min_Data=0 and Max_Data=0x0FFF
*/
__STATIC_INLINE uint32_t LL_IWDG_GetWindow(const IWDG_TypeDef *IWDGx)
{
return (READ_REG(IWDGx->WINR));
}
/**
* @}
*/
/** @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 flag Window Value Update is set or not
* @rmtoll SR WVU LL_IWDG_IsActiveFlag_WVU
* @param IWDGx IWDG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_WVU(const IWDG_TypeDef *IWDGx)
{
return ((READ_BIT(IWDGx->SR, IWDG_SR_WVU) == (IWDG_SR_WVU)) ? 1UL : 0UL);
}
/**
* @brief Check if all flags Prescaler, Reload & Window Value Update are reset or not
* @rmtoll SR PVU LL_IWDG_IsReady\n
* SR RVU LL_IWDG_IsReady\n
* SR WVU 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 | IWDG_SR_WVU) == 0U) ? 1UL : 0UL);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* IWDG1 || IWDG2 */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32H7xx_LL_IWDG_H */

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/**
******************************************************************************
* @file stm32h7xx_ll_wwdg.h
* @author MCD Application Team
* @brief Header file of WWDG LL module.
******************************************************************************
* @attention
*
* Copyright (c) 2017 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 STM32H7xx_LL_WWDG_H
#define STM32H7xx_LL_WWDG_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx.h"
/** @addtogroup STM32H7xx_LL_Driver
* @{
*/
#if defined (WWDG1) || defined (WWDG2)
/** @defgroup WWDG_LL WWDG
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup WWDG_LL_Exported_Constants WWDG Exported Constants
* @{
*/
/** @defgroup WWDG_LL_EC_IT IT Defines
* @brief IT defines which can be used with LL_WWDG_ReadReg and LL_WWDG_WriteReg functions
* @{
*/
#define LL_WWDG_CFR_EWI WWDG_CFR_EWI
/**
* @}
*/
/** @defgroup WWDG_LL_EC_PRESCALER PRESCALER
* @{
*/
#define LL_WWDG_PRESCALER_1 0x00000000u /*!< WWDG counter clock = (PCLK1/4096)/1 */
#define LL_WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
#define LL_WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
#define LL_WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_0 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/8 */
#define LL_WWDG_PRESCALER_16 WWDG_CFR_WDGTB_2 /*!< WWDG counter clock = (PCLK1/4096)/16 */
#define LL_WWDG_PRESCALER_32 (WWDG_CFR_WDGTB_2 | WWDG_CFR_WDGTB_0) /*!< WWDG counter clock = (PCLK1/4096)/32 */
#define LL_WWDG_PRESCALER_64 (WWDG_CFR_WDGTB_2 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/64 */
#define LL_WWDG_PRESCALER_128 (WWDG_CFR_WDGTB_2 | WWDG_CFR_WDGTB_1 | WWDG_CFR_WDGTB_0) /*!< WWDG counter clock = (PCLK1/4096)/128 */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup WWDG_LL_Exported_Macros WWDG Exported Macros
* @{
*/
/** @defgroup WWDG_LL_EM_WRITE_READ Common Write and read registers macros
* @{
*/
/**
* @brief Write a value in WWDG register
* @param __INSTANCE__ WWDG Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_WWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in WWDG register
* @param __INSTANCE__ WWDG Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_WWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup WWDG_LL_Exported_Functions WWDG Exported Functions
* @{
*/
/** @defgroup WWDG_LL_EF_Configuration Configuration
* @{
*/
/**
* @brief Enable Window Watchdog. The watchdog is always disabled after a reset.
* @note It is enabled by setting the WDGA bit in the WWDG_CR register,
* then it cannot be disabled again except by a reset.
* This bit is set by software and only cleared by hardware after a reset.
* When WDGA = 1, the watchdog can generate a reset.
* @rmtoll CR WDGA LL_WWDG_Enable
* @param WWDGx WWDG Instance
* @retval None
*/
__STATIC_INLINE void LL_WWDG_Enable(WWDG_TypeDef *WWDGx)
{
SET_BIT(WWDGx->CR, WWDG_CR_WDGA);
}
/**
* @brief Checks if Window Watchdog is enabled
* @rmtoll CR WDGA LL_WWDG_IsEnabled
* @param WWDGx WWDG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_WWDG_IsEnabled(const WWDG_TypeDef *WWDGx)
{
return ((READ_BIT(WWDGx->CR, WWDG_CR_WDGA) == (WWDG_CR_WDGA)) ? 1UL : 0UL);
}
/**
* @brief Set the Watchdog counter value to provided value (7-bits T[6:0])
* @note When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset
* This counter is decremented every (4096 x 2expWDGTB) PCLK cycles
* A reset is produced when it rolls over from 0x40 to 0x3F (bit T6 becomes cleared)
* Setting the counter lower then 0x40 causes an immediate reset (if WWDG enabled)
* @rmtoll CR T LL_WWDG_SetCounter
* @param WWDGx WWDG Instance
* @param Counter 0..0x7F (7 bit counter value)
* @retval None
*/
__STATIC_INLINE void LL_WWDG_SetCounter(WWDG_TypeDef *WWDGx, uint32_t Counter)
{
MODIFY_REG(WWDGx->CR, WWDG_CR_T, Counter);
}
/**
* @brief Return current Watchdog Counter Value (7 bits counter value)
* @rmtoll CR T LL_WWDG_GetCounter
* @param WWDGx WWDG Instance
* @retval 7 bit Watchdog Counter value
*/
__STATIC_INLINE uint32_t LL_WWDG_GetCounter(const WWDG_TypeDef *WWDGx)
{
return (READ_BIT(WWDGx->CR, WWDG_CR_T));
}
/**
* @brief Set the time base of the prescaler (WDGTB).
* @note Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter
* is decremented every (4096 x 2expWDGTB) PCLK cycles
* @rmtoll CFR WDGTB LL_WWDG_SetPrescaler
* @param WWDGx WWDG Instance
* @param Prescaler This parameter can be one of the following values:
* @arg @ref LL_WWDG_PRESCALER_1
* @arg @ref LL_WWDG_PRESCALER_2
* @arg @ref LL_WWDG_PRESCALER_4
* @arg @ref LL_WWDG_PRESCALER_8
* @arg @ref LL_WWDG_PRESCALER_16
* @arg @ref LL_WWDG_PRESCALER_32
* @arg @ref LL_WWDG_PRESCALER_64
* @arg @ref LL_WWDG_PRESCALER_128
* @retval None
*/
__STATIC_INLINE void LL_WWDG_SetPrescaler(WWDG_TypeDef *WWDGx, uint32_t Prescaler)
{
MODIFY_REG(WWDGx->CFR, WWDG_CFR_WDGTB, Prescaler);
}
/**
* @brief Return current Watchdog Prescaler Value
* @rmtoll CFR WDGTB LL_WWDG_GetPrescaler
* @param WWDGx WWDG Instance
* @retval Returned value can be one of the following values:
* @arg @ref LL_WWDG_PRESCALER_1
* @arg @ref LL_WWDG_PRESCALER_2
* @arg @ref LL_WWDG_PRESCALER_4
* @arg @ref LL_WWDG_PRESCALER_8
* @arg @ref LL_WWDG_PRESCALER_16
* @arg @ref LL_WWDG_PRESCALER_32
* @arg @ref LL_WWDG_PRESCALER_64
* @arg @ref LL_WWDG_PRESCALER_128
*/
__STATIC_INLINE uint32_t LL_WWDG_GetPrescaler(const WWDG_TypeDef *WWDGx)
{
return (READ_BIT(WWDGx->CFR, WWDG_CFR_WDGTB));
}
/**
* @brief Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]).
* @note This window value defines when write in the WWDG_CR register
* to program Watchdog counter is allowed.
* Watchdog counter value update must occur only when the counter value
* is lower than the Watchdog window register value.
* Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value
* (in the control register) is refreshed before the downcounter has reached
* the watchdog window register value.
* Physically is possible to set the Window lower then 0x40 but it is not recommended.
* To generate an immediate reset, it is possible to set the Counter lower than 0x40.
* @rmtoll CFR W LL_WWDG_SetWindow
* @param WWDGx WWDG Instance
* @param Window 0x00..0x7F (7 bit Window value)
* @retval None
*/
__STATIC_INLINE void LL_WWDG_SetWindow(WWDG_TypeDef *WWDGx, uint32_t Window)
{
MODIFY_REG(WWDGx->CFR, WWDG_CFR_W, Window);
}
/**
* @brief Return current Watchdog Window Value (7 bits value)
* @rmtoll CFR W LL_WWDG_GetWindow
* @param WWDGx WWDG Instance
* @retval 7 bit Watchdog Window value
*/
__STATIC_INLINE uint32_t LL_WWDG_GetWindow(const WWDG_TypeDef *WWDGx)
{
return (READ_BIT(WWDGx->CFR, WWDG_CFR_W));
}
/**
* @}
*/
/** @defgroup WWDG_LL_EF_FLAG_Management FLAG_Management
* @{
*/
/**
* @brief Indicates if the WWDG Early Wakeup Interrupt Flag is set or not.
* @note This bit is set by hardware when the counter has reached the value 0x40.
* It must be cleared by software by writing 0.
* A write of 1 has no effect. This bit is also set if the interrupt is not enabled.
* @rmtoll SR EWIF LL_WWDG_IsActiveFlag_EWKUP
* @param WWDGx WWDG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP(const WWDG_TypeDef *WWDGx)
{
return ((READ_BIT(WWDGx->SR, WWDG_SR_EWIF) == (WWDG_SR_EWIF)) ? 1UL : 0UL);
}
/**
* @brief Clear WWDG Early Wakeup Interrupt Flag (EWIF)
* @rmtoll SR EWIF LL_WWDG_ClearFlag_EWKUP
* @param WWDGx WWDG Instance
* @retval None
*/
__STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP(WWDG_TypeDef *WWDGx)
{
WRITE_REG(WWDGx->SR, ~WWDG_SR_EWIF);
}
/**
* @}
*/
/** @defgroup WWDG_LL_EF_IT_Management IT_Management
* @{
*/
/**
* @brief Enable the Early Wakeup Interrupt.
* @note When set, an interrupt occurs whenever the counter reaches value 0x40.
* This interrupt is only cleared by hardware after a reset
* @rmtoll CFR EWI LL_WWDG_EnableIT_EWKUP
* @param WWDGx WWDG Instance
* @retval None
*/
__STATIC_INLINE void LL_WWDG_EnableIT_EWKUP(WWDG_TypeDef *WWDGx)
{
SET_BIT(WWDGx->CFR, WWDG_CFR_EWI);
}
/**
* @brief Check if Early Wakeup Interrupt is enabled
* @rmtoll CFR EWI LL_WWDG_IsEnabledIT_EWKUP
* @param WWDGx WWDG Instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP(const WWDG_TypeDef *WWDGx)
{
return ((READ_BIT(WWDGx->CFR, WWDG_CFR_EWI) == (WWDG_CFR_EWI)) ? 1UL : 0UL);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* WWDG1 || WWDG2 */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32H7xx_LL_WWDG_H */

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/**
******************************************************************************
* @file stm32h7xx_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) 2017 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_IWDG1() or __HAL_DBGMCU_FREEZE2_IWDG2() and
__HAL_DBGMCU_UnFreeze_IWDG1 or __HAL_DBGMCU_UnFreeze2_IWDG2() macros.
[..] Min-max timeout value @32KHz (LSI): ~125us / ~32.7s
The IWDG timeout may vary due to LSI clock frequency dispersion.
STM32H7xx devices provide the capability to measure the LSI clock
frequency (LSI clock is internally connected to TIM16 CH1 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, IWDG_RLR and IWDG_WINR.
(++) 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.
(++) Depending on window parameter:
(+++) If Window Init parameter is same as Window register value,
nothing more is done but reload counter value in order to exit
function with exact time base.
(+++) Else modify Window register. This will automatically reload
watchdog counter.
(++) 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 "stm32h7xx_hal.h"
/** @addtogroup STM32H7xx_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_WVU | 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.
(+) Manage Window option.
(+) 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));
assert_param(IS_IWDG_WINDOW(hiwdg->Init.Window));
/* Enable IWDG. LSI is turned on automatically */
__HAL_IWDG_START(hiwdg);
/* Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR 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;
}
}
}
/* If window parameter is different than current value, modify window
register */
if (hiwdg->Instance->WINR != hiwdg->Init.Window)
{
/* Write to IWDG WINR the IWDG_Window value to compare with. In any case,
even if window feature is disabled, Watchdog will be reloaded by writing
windows register */
hiwdg->Instance->WINR = hiwdg->Init.Window;
}
else
{
/* 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 */
/**
* @}
*/
/**
* @}
*/

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/**
******************************************************************************
* @file stm32h7xx_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
******************************************************************************
* @attention
*
* Copyright (c) 2017 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
==============================================================================
##### 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.
(+) If required by application, an Early Wakeup Interrupt can be triggered
in order to be warned before WWDG expiration. The Early Wakeup Interrupt
(EWI) can be used if specific safety operations or data logging must
be performed before the actual reset is generated. When the downcounter
reaches 0x40, interrupt occurs. This mechanism requires WWDG interrupt
line to be enabled in NVIC. Once enabled, EWI interrupt 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 (case of STM32H74x/5x devices):
(++) Counter min (T[5;0] = 0x00) @100MHz (PCLK1) with zero prescaler:
max timeout before reset: approximately 40.96µs
(++) Counter max (T[5;0] = 0x3F) @100MHz (PCLK1) with prescaler dividing by 128:
max timeout before reset: approximately 335.54ms
(+) Typical values (case of STM32H7Ax/Bx devices):
(++) Counter min (T[5;0] = 0x00) @140MHz (PCLK1) with zero prescaler:
max timeout before reset: approximately 29.25µs
(++) Counter max (T[5;0] = 0x3F) @140MHz (PCLK1) with prescaler dividing by 128:
max timeout before reset: approximately 239.67ms
(+) Typical values (case of STM32H72x/3x devices):
(++) Counter min (T[5;0] = 0x00) @125MHz (PCLK1) with zero prescaler:
max timeout before reset: approximately 32.76µs
(++) Counter max (T[5;0] = 0x3F) @125MHz (PCLK1) with prescaler dividing by 128:
max timeout before reset: approximately 268.43ms
##### How to use this driver #####
==============================================================================
*** Common driver usage ***
===========================
[..]
(+) Enable WWDG APB1 clock using __HAL_RCC_WWDG_CLK_ENABLE().
(+) Configure the WWDG prescaler, refresh window value, counter value and early
interrupt status using HAL_WWDG_Init() function. This will automatically
enable WWDG and start its downcounter. Time reference can be taken from
function exit. Care must be taken to provide a counter value
greater than 0x40 to prevent generation of immediate reset.
(+) If the Early Wakeup Interrupt (EWI) feature is enabled, an interrupt is
generated when the counter reaches 0x40. When HAL_WWDG_IRQHandler is
triggered by the interrupt service routine, flag will be automatically
cleared and HAL_WWDG_WakeupCallback user callback will be executed. User
can add his own code by customization of callback HAL_WWDG_WakeupCallback.
(+) 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
HAL_WWDG_RegisterCallback() to register a user callback.
(+) Function 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 HAL_WWDG_UnRegisterCallback() to reset a callback to
the default weak (surcharged) function. 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 HAL_WWDG_Init function, callbacks are reset to the
corresponding legacy weak (surcharged) functions:
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 available 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
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_hal.h"
/** @addtogroup STM32H7xx_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 /* USE_HAL_WWDG_REGISTER_CALLBACKS */
/* 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 /* USE_HAL_WWDG_REGISTER_CALLBACKS */
/**
* @}
*/
/** @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 /* USE_HAL_WWDG_REGISTER_CALLBACKS */
}
}
}
/**
* @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 */
/**
* @}
*/
/**
* @}
*/

View File

@ -1,5 +1,5 @@
########################################################################################################################## ##########################################################################################################################
# File automatically-generated by tool: [projectgenerator] version: [4.6.0.1-B1] date: [Tue May 27 01:52:23 CEST 2025] # File automatically-generated by tool: [projectgenerator] version: [4.6.0.1-B1] date: [Fri Jun 06 17:08:12 CEST 2025]
########################################################################################################################## ##########################################################################################################################
# ------------------------------------------------ # ------------------------------------------------
@ -64,7 +64,9 @@ Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_i2c_ex.c \
Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_exti.c \ Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_exti.c \
Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_spi.c \ Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_spi.c \
Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_spi_ex.c \ Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_spi_ex.c \
Core/Src/system_stm32h7xx.c Core/Src/system_stm32h7xx.c \
Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_iwdg.c \
Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_wwdg.c
# ASM sources # ASM sources
ASM_SOURCES = \ ASM_SOURCES = \

View File

@ -32,6 +32,10 @@ FDCAN1.StdFiltersNbr=32
FDCAN1.TxFifoQueueElmtsNbr=32 FDCAN1.TxFifoQueueElmtsNbr=32
File.Version=6 File.Version=6
GPIO.groupedBy=Group By Peripherals GPIO.groupedBy=Group By Peripherals
IWDG1.IPParameters=Prescaler,Window,Reload
IWDG1.Prescaler=IWDG_PRESCALER_8
IWDG1.Reload=799
IWDG1.Window=759
KeepUserPlacement=false KeepUserPlacement=false
MMTAppReg1.MEMORYMAP.AppRegionName=DTCMRAM MMTAppReg1.MEMORYMAP.AppRegionName=DTCMRAM
MMTAppReg1.MEMORYMAP.ContextName=Cortex-M7NS MMTAppReg1.MEMORYMAP.ContextName=Cortex-M7NS
@ -75,17 +79,19 @@ Mcu.CPN=STM32H7A3RIT6
Mcu.Family=STM32H7 Mcu.Family=STM32H7
Mcu.IP0=ADC1 Mcu.IP0=ADC1
Mcu.IP1=ADC2 Mcu.IP1=ADC2
Mcu.IP10=SYS Mcu.IP10=SPI2
Mcu.IP11=TIM15 Mcu.IP11=SYS
Mcu.IP12=TIM15
Mcu.IP13=WWDG1
Mcu.IP2=CORTEX_M7 Mcu.IP2=CORTEX_M7
Mcu.IP3=DEBUG Mcu.IP3=DEBUG
Mcu.IP4=FDCAN1 Mcu.IP4=FDCAN1
Mcu.IP5=MEMORYMAP Mcu.IP5=IWDG1
Mcu.IP6=NVIC Mcu.IP6=MEMORYMAP
Mcu.IP7=RCC Mcu.IP7=NVIC
Mcu.IP8=SPI1 Mcu.IP8=RCC
Mcu.IP9=SPI2 Mcu.IP9=SPI1
Mcu.IPNb=12 Mcu.IPNb=14
Mcu.Name=STM32H7A3R(G-I)Tx Mcu.Name=STM32H7A3R(G-I)Tx
Mcu.Package=LQFP64 Mcu.Package=LQFP64
Mcu.Pin0=PH0-OSC_IN Mcu.Pin0=PH0-OSC_IN
@ -125,14 +131,16 @@ Mcu.Pin39=PB7
Mcu.Pin4=PC2 Mcu.Pin4=PC2
Mcu.Pin40=PB8 Mcu.Pin40=PB8
Mcu.Pin41=PB9 Mcu.Pin41=PB9
Mcu.Pin42=VP_SYS_VS_Systick Mcu.Pin42=VP_IWDG1_VS_IWDG
Mcu.Pin43=VP_MEMORYMAP_VS_MEMORYMAP Mcu.Pin43=VP_SYS_VS_Systick
Mcu.Pin44=VP_WWDG1_VS_WWDG
Mcu.Pin45=VP_MEMORYMAP_VS_MEMORYMAP
Mcu.Pin5=PC3 Mcu.Pin5=PC3
Mcu.Pin6=PA0 Mcu.Pin6=PA0
Mcu.Pin7=PA1 Mcu.Pin7=PA1
Mcu.Pin8=PA2 Mcu.Pin8=PA2
Mcu.Pin9=PA3 Mcu.Pin9=PA3
Mcu.PinsNb=44 Mcu.PinsNb=46
Mcu.ThirdPartyNb=0 Mcu.ThirdPartyNb=0
Mcu.UserConstants= Mcu.UserConstants=
Mcu.UserName=STM32H7A3RITx Mcu.UserName=STM32H7A3RITx
@ -150,6 +158,7 @@ NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false
NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.WWDG_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
PA0.GPIOParameters=GPIO_Label PA0.GPIOParameters=GPIO_Label
PA0.GPIO_Label=TS_ERROR PA0.GPIO_Label=TS_ERROR
PA0.Locked=true PA0.Locked=true
@ -336,7 +345,7 @@ ProjectManager.ToolChainLocation=
ProjectManager.UAScriptAfterPath= ProjectManager.UAScriptAfterPath=
ProjectManager.UAScriptBeforePath= ProjectManager.UAScriptBeforePath=
ProjectManager.UnderRoot=false ProjectManager.UnderRoot=false
ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_FDCAN1_Init-FDCAN1-false-HAL-true,4-MX_TIM15_Init-TIM15-false-HAL-true,5-MX_SPI1_Init-SPI1-false-HAL-true,6-MX_SPI2_Init-SPI2-false-HAL-true,7-MX_ADC1_Init-ADC1-false-HAL-true,8-MX_ADC2_Init-ADC2-false-HAL-true,0-MX_CORTEX_M7_Init-CORTEX_M7-false-HAL-true ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_FDCAN1_Init-FDCAN1-false-HAL-true,4-MX_TIM15_Init-TIM15-false-HAL-true,5-MX_SPI1_Init-SPI1-false-HAL-true,6-MX_SPI2_Init-SPI2-false-HAL-true,7-MX_ADC1_Init-ADC1-false-HAL-true,8-MX_ADC2_Init-ADC2-false-HAL-true,9-MX_IWDG1_Init-IWDG1-false-HAL-true,10-MX_WWDG1_Init-WWDG1-false-HAL-true,0-MX_CORTEX_M7_Init-CORTEX_M7-false-HAL-true
RCC.ADCCLockSelection=RCC_ADCCLKSOURCE_PLL3 RCC.ADCCLockSelection=RCC_ADCCLKSOURCE_PLL3
RCC.ADCFreq_Value=42666666.666666664 RCC.ADCFreq_Value=42666666.666666664
RCC.AHB12Freq_Value=64000000 RCC.AHB12Freq_Value=64000000
@ -448,8 +457,17 @@ SPI2.VirtualNSS=VM_NSSHARD
SPI2.VirtualType=VM_MASTER SPI2.VirtualType=VM_MASTER
TIM15.IPParameters=Prescaler TIM15.IPParameters=Prescaler
TIM15.Prescaler=16000-1 TIM15.Prescaler=16000-1
VP_IWDG1_VS_IWDG.Mode=IWDG_Activate
VP_IWDG1_VS_IWDG.Signal=IWDG1_VS_IWDG
VP_MEMORYMAP_VS_MEMORYMAP.Mode=CurAppReg VP_MEMORYMAP_VS_MEMORYMAP.Mode=CurAppReg
VP_MEMORYMAP_VS_MEMORYMAP.Signal=MEMORYMAP_VS_MEMORYMAP VP_MEMORYMAP_VS_MEMORYMAP.Signal=MEMORYMAP_VS_MEMORYMAP
VP_SYS_VS_Systick.Mode=SysTick VP_SYS_VS_Systick.Mode=SysTick
VP_SYS_VS_Systick.Signal=SYS_VS_Systick VP_SYS_VS_Systick.Signal=SYS_VS_Systick
VP_WWDG1_VS_WWDG.Mode=WWDG_Activate
VP_WWDG1_VS_WWDG.Signal=WWDG1_VS_WWDG
WWDG1.Counter=124
WWDG1.EWIMode=WWDG_EWI_ENABLE
WWDG1.IPParameters=EWIMode,Prescaler,Counter,Window
WWDG1.Prescaler=WWDG_PRESCALER_32
WWDG1.Window=119
board=custom board=custom