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【STM32】中断相关函数和类型

更新时间:2023-04-04 03:40:52 阅读：评论：0

00. 目录

文章目录

00. 目录01. 概述02. 相关类型03. 相关函数04. 附录05. 声明

01. 概述

中断相关代码主要分布在固件库的 stm32f4xx_exti.h 和 stm32f4xx_exti.c 文件中。

02. 相关类型

EXTI模式枚举

/** * @brief EXTI mode enumeration */typedef enum{  EXTI_Mode_Interrupt = 0x00,  EXTI_Mode_Event = 0x04}EXTIMode_TypeDef;#define IS_EXTI_MODE(MODE) (((MODE) == EXTI_Mode_Interrupt) || ((MODE) == EXTI_Mode_Event))

EXTI触发枚举

/** * @brief EXTI Trigger enumeration */typedef enum{  EXTI_Trigger_Rising = 0x08, //上升沿  EXTI_Trigger_Falling = 0x0C,  //下降沿  EXTI_Trigger_Rising_Falling = 0x10 //边沿触发}EXTITrigger_TypeDef;#define IS_EXTI_TRIGGER(TRIGGER) (((TRIGGER) == EXTI_Trigger_Rising) || \ ((TRIGGER) == EXTI_Trigger_Falling) || \ ((TRIGGER) == EXTI_Trigger_Rising_Falling))

EXTI初始化结构体

/** * @brief EXTI Init Structure definition */typedef struct{  uint32_t EXTI_Line;               /*!< Specifies the EXTI lines to be enabled or disabled. This parameter can be any combination value of @ref EXTI_Lines */     EXTIMode_TypeDef EXTI_Mode;       /*!< Specifies the mode for the EXTI lines. This parameter can be a value of @ref EXTIMode_TypeDef */  EXTITrigger_TypeDef EXTI_Trigger; /*!< Specifies the trigger signal active edge for the EXTI lines. This parameter can be a value of @ref EXTITrigger_TypeDef */  FunctionalState EXTI_LineCmd;     /*!< Specifies the new state of the lected EXTI lines. This parameter can be t either to ENABLE or DISABLE */ }EXTI_InitTypeDef;

外部中断线

/** @defgroup EXTI_Lines * @{ */#define EXTI_Line0 ((uint32_t)0x00001) /*!< External interrupt line 0 */#define EXTI_Line1 ((uint32_t)0x00002) /*!< External interrupt line 1 */#define EXTI_Line2 ((uint32_t)0x00004) /*!< External interrupt line 2 */#define EXTI_Line3 ((uint32_t)0x00008) /*!< External interrupt line 3 */#define EXTI_Line4 ((uint32_t)0x00010) /*!< External interrupt line 4 */#define EXTI_Line5 ((uint32_t)0x00020) /*!< External interrupt line 5 */#define EXTI_Line6 ((uint32_t)0x00040) /*!< External interrupt line 6 */#define EXTI_Line7 ((uint32_t)0x00080) /*!< External interrupt line 7 */#define EXTI_Line8 ((uint32_t)0x00100) /*!< External interrupt line 8 */#define EXTI_Line9 ((uint32_t)0x00200)each的用法 /*!< External interrupt line 9 */#define EXTI_Line10 ((uint32_t)香果0x00400) /*!< External interrupt line 10 */#define EXTI_Line11 ((uint32_t)0x00800) /*!< External interrupt line 11 */#define EXTI_Line12 ((uint32_t)0x01000) /*!< External interrupt line 12 */#define EXTI_Line13 ((uint32_t)0x02000) /*!< External interrupt line 13 */#define EXTI_Line14 ((uint32_t)0x04000) /*!< External interrupt line 14 */#define EXTI_Line15 ((uint32_t)0x08000) /*!< External interrupt line 15 */#define EXTI_Line16 ((uint32_t)0x10000) /*!< External interrupt line 16 Connected to the PVD Output */#define EXTI_Line17 ((uint32_t)0x20000) /*!< External interrupt line怎么样煲鸡汤 17 Connected to the RTC Alarm event */#define EXTI_Line18 ((uint32_t)0x40000) /*!< External interrupt line 18 Connected to the USB OTG FS Wakeup from suspend event */                                    #define EXTI_Line19 ((uint32_t)0x80000) /*!< External interrupt line 19 Connected to the Ethernet Wakeup event */#define EXTI_Line20 ((uint32_t)0x00100000) /*!< External interrupt line 20 Connected to the USB OTG HS (configured in FS) Wakeup event */#define EXTI_Line21 ((uint32_t)0x00200000) /*!< External interrupt line 21 Connected to the RTC Tamper and Time Stamp events */                                               #define EXTI_Line22 ((uint32_t)0x00400000) /*!< External interrupt line 22 Connected to the RTC Wakeup event */#define EXTI_Line23 ((uint32_t)0x00800000) /*!< External interrupt line 23 Connected to the LPTIM Wakeup event 上海顾村公园*/                                          #define IS_EXTI_LINE(LINE) ((((LINE) & (uint32_t)0xFF800000) == 0x00) && ((LINE) != (uint16_t)0x00))#define IS_GET_EXTI_LINE(LINE) (((LINE) == EXTI_Line0) || ((LINE) == EXTI_Line1) || \ ((LINE) == EXTI_Line2) || ((LINE) == EXTI_Line3) || \ ((LINE) == EXTI_Line4) || ((LINE) == EXTI_Line5) || \ ((LINE) == EXTI_Line6) || ((LINE) == EXTI_Line7) || \ ((LINE) == EXTI_Line8) || ((LINE) == EXTI_Line9) || \ ((LINE) == EXTI_Line10) || ((LINE) == EXTI_Line11) || \ ((LINE) == EXTI_Line12) || ((LINE) == EXTI_Line13) || \ ((LINE) == EXTI_Line14) || ((LINE) == EXTI_Line15) || \ ((LINE) == EXTI_Line16) || ((LINE) == EXTI_Line17) || \ ((LINE) == EXTI_Line18) || ((LINE) == EXTI_Line19) || \ ((LINE) == EXTI_Line20) || ((LINE) == EXTI_Line21) ||\ ((LINE) == EXTI_Line22) || ((LINE) == EXTI_Line23))

03. 相关函数

/* Exported macro ------------------------------------------------------------*//* Exported functions --------------------------------------------------------*//* Function ud to t the EXTI configuration to the default ret state *****/void EXTI_DeInit(void);/* Initialization and Configuration functions *********************************/void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct);void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct);void EXTI切齿拊心_GenerateSWInterrupt(uint32_t EXTI_Line);/* Interrupts and flags management functions **********************************/FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line);void EXTI_ClearFlag(uint32_t EXTI_Line);ITStatus EXTI_GetITStatus(uint32_t EXTI_Line);void EXTI_ClearITPendingBit(uint32_t EXTI_Line);