【转】基于stm32f103zet6的外部中断学习

只看该作者 · 2016-11-13 00:11

一、关于中断中的结构体EXTI_InitTypeDef
原型：uint32_t EXTI_InitTypeDef::EXTI_Line
{
uint32_t  EXTI_Line
FunctionalState  EXTI_LineCmd
EXTIMode_TypeDef  EXTI_Mode
EXTITrigger_TypeDef  EXTI_Trigger
}含有4个成员
1、Specifies the EXTI lines to be enabled or disabled. This parameter can be any combination of
EXTI_Lines
EXTI_Lines的取值可以是下面的数字
#define  EXTI_Line0 ((uint32_t)0x00001)
#define  EXTI_Line1 ((uint32_t)0x00002)
#define  EXTI_Line10 ((uint32_t)0x00400)
#define  EXTI_Line11 ((uint32_t)0x00800)
#define  EXTI_Line12 ((uint32_t)0x01000)
#define  EXTI_Line13 ((uint32_t)0x02000)
#define  EXTI_Line14 ((uint32_t)0x04000)
#define  EXTI_Line15 ((uint32_t)0x08000)
#define  EXTI_Line16 ((uint32_t)0x10000)
#define  EXTI_Line17 ((uint32_t)0x20000)
#define  EXTI_Line18 ((uint32_t)0x40000)
#define  EXTI_Line19 ((uint32_t)0x80000)
#define  EXTI_Line2 ((uint32_t)0x00004)
#define  EXTI_Line3 ((uint32_t)0x00008)
#define  EXTI_Line4 ((uint32_t)0x00010)
#define  EXTI_Line5 ((uint32_t)0x00020)
#define  EXTI_Line6 ((uint32_t)0x00040)
#define  EXTI_Line7 ((uint32_t)0x00080)
#define  EXTI_Line8 ((uint32_t)0x00100)
#define  EXTI_Line9 ((uint32_t)0x00200)
#define  IS_EXTI_LINE(LINE) ((((LINE) & (uint32_t)0xFFF00000) == 0x00) && ((LINE) != (uint16_t)0x00))
#define  IS_GET_EXTI_LINE(LINE)
2、Specifies the new state of the selected EXTI lines. This parameter can be set either
to ENABLE or DISABLE
3、Specifies the mode for the EXTI lines. This parameter can be a value of EXTIMode_TypeDef
EXTIMode_TypeDef的取值有枚举类型

EXTI_Mode_Interrupt //中断模式
EXTI_Mode_Event //事件模式
4、Specifies the trigger signal active edge for the EXTI lines. This parameter can be a value of
EXTIMode_TypeDef
EXTIMode_TypeDef的取值有：
EXTI_Trigger_Rising //上升沿
EXTI_Trigger_Falling //下降沿
EXTI_Trigger_Rising_Falling // 上升下降沿

以上只是配置中断
然后还需要初始化
初始化函数： void EXTI_Init  ( EXTI_InitTypeDef *  EXTI_InitStruct )

作用 Initializes the EXTI peripheral according to the specified parameters in the EXTI_InitStruct

还有一个很重要的函数

void GPIO_EXTILineConfig	(	uint8_t	GPIO_PortSource,
		uint8_t	GPIO_PinSource
	)

这个函数的作用就是用于配置哪个GPIO的哪个管脚用于中断!!!!!!!

只看该作者 · 2016-11-13 00:12

二、中断向量配置结构体 NVIC_InitTypeDef
作用： NVIC Init Structure definition.
参数成员：
uint8_t  NVIC_IRQChannel
FunctionalState  NVIC_IRQChannelCmd
uint8_t  NVIC_IRQChannelPreemptionPriority
uint8_t  NVIC_IRQChannelSubPriority
1、NVIC_IRQChannel
Specifies the IRQ channel to be enabled or disabled. This parameter can be a value of IRQn_Type
它的取值有
00170 NonMaskableInt_IRQn       = -14, /*!< 2 Non Maskable Interrupt                            */
00171 MemoryManagement_IRQn    = -12, /*!< 4 Cortex-M3 Memory Management Interrupt             */
00172 BusFault_IRQn             = -11, /*!< 5 Cortex-M3 Bus Fault Interrupt                   */
00173 UsageFault_IRQn          = -10, /*!< 6 Cortex-M3 Usage Fault Interrupt                   */
00174 SVCall_IRQn                = -5,    /*!< 11 Cortex-M3 SV Call Interrupt                      */
00175 DebugMonitor_IRQn          = -4,    /*!< 12 Cortex-M3 Debug Monitor Interrupt                */
00176 PendSV_IRQn                = -2,    /*!< 14 Cortex-M3 Pend SV Interrupt                      */
00177 SysTick_IRQn             = -1,    /*!< 15 Cortex-M3 System Tick Interrupt                */
00178
00179 /******  STM32 specific Interrupt Numbers *********************************************************/
00180 WWDG_IRQn                = 0,    /*!< Window WatchDog Interrupt                         */
00181 PVD_IRQn                   = 1,    /*!< PVD through EXTI Line detection Interrupt          */
00182 TAMPER_IRQn                = 2,    /*!< Tamper Interrupt                                  */
00183 RTC_IRQn                   = 3,    /*!< RTC global Interrupt                               */
00184 FLASH_IRQn                = 4,    /*!< FLASH global Interrupt                            */
00185 RCC_IRQn                   = 5,    /*!< RCC global Interrupt                               */
00186 EXTI0_IRQn                = 6,    /*!< EXTI Line0 Interrupt                               */
00187 EXTI1_IRQn                = 7,    /*!< EXTI Line1 Interrupt                               */
00188 EXTI2_IRQn                = 8,    /*!< EXTI Line2 Interrupt                               */
00189 EXTI3_IRQn                = 9,    /*!< EXTI Line3 Interrupt                               */
00190 EXTI4_IRQn                = 10,    /*!< EXTI Line4 Interrupt                               */
00191 DMA1_Channel1_IRQn       = 11,    /*!< DMA1 Channel 1 global Interrupt                   */
00192 DMA1_Channel2_IRQn       = 12,    /*!< DMA1 Channel 2 global Interrupt                   */
00193 DMA1_Channel3_IRQn       = 13,    /*!< DMA1 Channel 3 global Interrupt                   */
00194 DMA1_Channel4_IRQn       = 14,    /*!< DMA1 Channel 4 global Interrupt                   */
00195 DMA1_Channel5_IRQn       = 15,    /*!< DMA1 Channel 5 global Interrupt                   */
00196 DMA1_Channel6_IRQn       = 16,    /*!< DMA1 Channel 6 global Interrupt                   */
00197 DMA1_Channel7_IRQn       = 17,    /*!< DMA1 Channel 7 global Interrupt
对于我的片子还有
00297 #ifdef STM32F10X_HD
00298 ADC1_2_IRQn                = 18,    /*!< ADC1 and ADC2 global Interrupt                      */
00299 USB_HP_CAN1_TX_IRQn       = 19,    /*!< USB Device High Priority or CAN1 TX Interrupts    */
00300 USB_LP_CAN1_RX0_IRQn       = 20,    /*!< USB Device Low Priority or CAN1 RX0 Interrupts    */
00301 CAN1_RX1_IRQn             = 21,    /*!< CAN1 RX1 Interrupt                                  */
00302 CAN1_SCE_IRQn             = 22,    /*!< CAN1 SCE Interrupt                                  */
00303 EXTI9_5_IRQn             = 23,    /*!< External Line[9:5] Interrupts                      */
00304 TIM1_BRK_IRQn             = 24,    /*!< TIM1 Break Interrupt                               */
00305 TIM1_UP_IRQn             = 25,    /*!< TIM1 Update Interrupt                               */
00306 TIM1_TRG_COM_IRQn          = 26,    /*!< TIM1 Trigger and Commutation Interrupt             */
00307 TIM1_CC_IRQn             = 27,    /*!< TIM1 Capture Compare Interrupt                      */
00308 TIM2_IRQn                = 28,    /*!< TIM2 global Interrupt                               */
00309 TIM3_IRQn                = 29,    /*!< TIM3 global Interrupt                               */
00310 TIM4_IRQn                = 30,    /*!< TIM4 global Interrupt                               */
00311 I2C1_EV_IRQn             = 31,    /*!< I2C1 Event Interrupt                               */
00312 I2C1_ER_IRQn             = 32,    /*!< I2C1 Error Interrupt                               */
00313 I2C2_EV_IRQn             = 33,    /*!< I2C2 Event Interrupt                               */
00314 I2C2_ER_IRQn             = 34,    /*!< I2C2 Error Interrupt                               */
00315 SPI1_IRQn                = 35,    /*!< SPI1 global Interrupt                               */
00316 SPI2_IRQn                = 36,    /*!< SPI2 global Interrupt                               */
00317 USART1_IRQn                = 37,    /*!< USART1 global Interrupt                            */
00318 USART2_IRQn                = 38,    /*!< USART2 global Interrupt                            */
00319 USART3_IRQn                = 39,    /*!< USART3 global Interrupt                            */
00320 EXTI15_10_IRQn             = 40,    /*!< External Line[15:10] Interrupts                   */
00321 RTCAlarm_IRQn             = 41,    /*!< RTC Alarm through EXTI Line Interrupt             */
00322 USBWakeUp_IRQn             = 42,    /*!< USB Device WakeUp from suspend through EXTI Line Interrupt */
00323 TIM8_BRK_IRQn             = 43,    /*!< TIM8 Break Interrupt                               */
00324 TIM8_UP_IRQn             = 44,    /*!< TIM8 Update Interrupt                               */
00325 TIM8_TRG_COM_IRQn          = 45,    /*!< TIM8 Trigger and Commutation Interrupt             */
00326 TIM8_CC_IRQn             = 46,    /*!< TIM8 Capture Compare Interrupt                      */
00327 ADC3_IRQn                = 47,    /*!< ADC3 global Interrupt                               */
00328 FSMC_IRQn                = 48,    /*!< FSMC global Interrupt                               */
00329 SDIO_IRQn                = 49,    /*!< SDIO global Interrupt                               */
00330 TIM5_IRQn                = 50,    /*!< TIM5 global Interrupt                               */
00331 SPI3_IRQn                = 51,    /*!< SPI3 global Interrupt                               */
00332 UART4_IRQn                = 52,    /*!< UART4 global Interrupt                            */
00333 UART5_IRQn                = 53,    /*!< UART5 global Interrupt                            */
00334 TIM6_IRQn                = 54,    /*!< TIM6 global Interrupt                               */
00335 TIM7_IRQn                = 55,    /*!< TIM7 global Interrupt                               */
00336 DMA2_Channel1_IRQn       = 56,    /*!< DMA2 Channel 1 global Interrupt                   */
00337 DMA2_Channel2_IRQn       = 57,    /*!< DMA2 Channel 2 global Interrupt                   */
00338 DMA2_Channel3_IRQn       = 58,    /*!< DMA2 Channel 3 global Interrupt                   */
00339 DMA2_Channel4_5_IRQn       = 59    /*!< DMA2 Channel 4 and Channel 5 global Interrupt       */
00340 #endif /* STM32F10X_HD */
2、第二个参数NVIC_IRQChannelCmd
作用：Specifies whether the IRQ channel defined in NVIC_IRQChannel will be enabled or disabled.
This parameter can be set either to ENABLE or DISABLE
3、第三个参数 IRQChannelPreemptionPriority
Specifies the pre-emption priority for the IRQ channel specified in NVIC_IRQChannel.
This parameter can be a value between 0 and 15
4、第四个参数 uint8_t  NVIC_IRQChannelSubPriority
Specifies the pre-emption priority for the IRQ channel specified in NVIC_IRQChannel.
This parameter can be a value between 0 and 15

1万 · 2016-11-13 12:39

中断那个在头文件有向量列表吧，不需要自己在工程中做了。

只看该作者 · 2016-11-13 17:16

643757107 发表于 2016-11-13 12:39
中断那个在头文件有向量列表吧，不需要自己在工程中做了。

自己可以重新定义的

1万 · 2016-11-14 16:45

好牛X的猪坚强发表于 2016-11-13 17:16
自己可以重新定义的

嗯，听说过，但是从来没敢做过，感觉没有这个需求。

【转】 基于stm32f103zet6的外部中断学习

【转】基于stm32f103zet6的外部中断学习