00. 目錄

文章目錄

• • 00. 目錄
  • 01. IWDG概述
  • 02. 相關(guān)類型
  • 03. 相關(guān)函數(shù)
  • 04. 結(jié)構(gòu)體封裝
  • 05. 附錄
  • 06. 聲明

01. IWDG概述

stm32f4xx_iwdg.h和stm32f4xx_iwdg.c文件中

02. 相關(guān)類型

IWDG_WriteAccess

/** @defgroup IWDG_WriteAccess* @{*/ #define IWDG_WriteAccess_Enable ((uint16_t)0x5555) #define IWDG_WriteAccess_Disable ((uint16_t)0x0000) #define IS_IWDG_WRITE_ACCESS(ACCESS) (((ACCESS) == IWDG_WriteAccess_Enable) || \((ACCESS) == IWDG_WriteAccess_Disable))

IWDG_prescaler

/** @defgroup IWDG_prescaler * @{*/ #define IWDG_Prescaler_4 ((uint8_t)0x00) #define IWDG_Prescaler_8 ((uint8_t)0x01) #define IWDG_Prescaler_16 ((uint8_t)0x02) #define IWDG_Prescaler_32 ((uint8_t)0x03) #define IWDG_Prescaler_64 ((uint8_t)0x04) #define IWDG_Prescaler_128 ((uint8_t)0x05) #define IWDG_Prescaler_256 ((uint8_t)0x06) #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))

IWDG_Flag

/** @defgroup IWDG_Flag * @{*/ #define IWDG_FLAG_PVU ((uint16_t)0x0001) #define IWDG_FLAG_RVU ((uint16_t)0x0002) #define IS_IWDG_FLAG(FLAG) (((FLAG) == IWDG_FLAG_PVU) || ((FLAG) == IWDG_FLAG_RVU)) #define IS_IWDG_RELOAD(RELOAD) ((RELOAD) <= 0xFFF)

03. 相關(guān)函數(shù)

/* Exported macro ------------------------------------------------------------*/ /* Exported functions --------------------------------------------------------*//* Prescaler and Counter configuration functions ******************************/ void IWDG_WriteAccessCmd(uint16_t IWDG_WriteAccess); void IWDG_SetPrescaler(uint8_t IWDG_Prescaler); void IWDG_SetReload(uint16_t Reload); void IWDG_ReloadCounter(void);/* IWDG activation function ***************************************************/ void IWDG_Enable(void);/* Flag management function ***************************************************/ FlagStatus IWDG_GetFlagStatus(uint16_t IWDG_FLAG);

04. 結(jié)構(gòu)體封裝

/** * @brief Independent WATCHDOG*/typedef struct {__IO uint32_t KR; /*!< IWDG Key register, Address offset: 0x00 */__IO uint32_t PR; /*!< IWDG Prescaler register, Address offset: 0x04 */__IO uint32_t RLR; /*!< IWDG Reload register, Address offset: 0x08 */__IO uint32_t SR; /*!< IWDG Status register, Address offset: 0x0C */ } IWDG_TypeDef;

05. 附錄

5.1 【STM32】STM32系列教程匯總

網(wǎng)址：【STM32】STM32系列教程匯總

06. 聲明

該教程參考了STM32固件庫

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