stm32f4xx_hal_iwdg.h File Reference

Header file of IWDG HAL module. More...

#include "stm32f4xx_hal_def.h"

Go to the source code of this file.

Data Structures
struct	IWDG_InitTypeDef
	IWDG Init structure definition. More...
struct	IWDG_HandleTypeDef
	IWDG Handle Structure definition. More...
Defines
#define	IWDG_PRESCALER_4   0x00000000U
#define	IWDG_PRESCALER_8   IWDG_PR_PR_0
#define	IWDG_PRESCALER_16   IWDG_PR_PR_1
#define	IWDG_PRESCALER_32   (IWDG_PR_PR_1 | IWDG_PR_PR_0)
#define	IWDG_PRESCALER_64   IWDG_PR_PR_2
#define	IWDG_PRESCALER_128   (IWDG_PR_PR_2 | IWDG_PR_PR_0)
#define	IWDG_PRESCALER_256   (IWDG_PR_PR_2 | IWDG_PR_PR_1)
#define	__HAL_IWDG_START(__HANDLE__)   WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_ENABLE)
	Enable the IWDG peripheral.
#define	__HAL_IWDG_RELOAD_COUNTER(__HANDLE__)   WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_RELOAD)
	Reload IWDG counter with value defined in the reload register (write access to IWDG_PR & IWDG_RLR registers disabled).
#define	IWDG_KEY_RELOAD   0x0000AAAAU
	IWDG Key Register BitMask.
#define	IWDG_KEY_ENABLE   0x0000CCCCU
#define	IWDG_KEY_WRITE_ACCESS_ENABLE   0x00005555U
#define	IWDG_KEY_WRITE_ACCESS_DISABLE   0x00000000U
#define	IWDG_ENABLE_WRITE_ACCESS(__HANDLE__)   WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_ENABLE)
	Enable write access to IWDG_PR and IWDG_RLR registers.
#define	IWDG_DISABLE_WRITE_ACCESS(__HANDLE__)   WRITE_REG((__HANDLE__)->Instance->KR, IWDG_KEY_WRITE_ACCESS_DISABLE)
	Disable write access to IWDG_PR and IWDG_RLR registers.
#define	IS_IWDG_PRESCALER(__PRESCALER__)
	Check IWDG prescaler value.
#define	IS_IWDG_RELOAD(__RELOAD__)   ((__RELOAD__) <= IWDG_RLR_RL)
	Check IWDG reload value.
Functions
HAL_StatusTypeDef	HAL_IWDG_Init (IWDG_HandleTypeDef *hiwdg)
	Initialize the IWDG according to the specified parameters in the IWDG_InitTypeDef and start watchdog.
HAL_StatusTypeDef	HAL_IWDG_Refresh (IWDG_HandleTypeDef *hiwdg)
	Refresh the IWDG.

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Detailed Description

Header file of IWDG HAL module.

Author:

MCD Application Team

Attention:

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Definition in file stm32f4xx_hal_iwdg.h.