stm32 60个可屏蔽中断 19个外部中断 60个可屏蔽中断包含这19个么

yudianerr

本人菜鸟，初学中断管理，stm32有60个可屏蔽中断，而外部中断只有19个，其他中断呢？

在中断向量表中倒是有60个中断函数如下：

                DCD     WWDG_IRQHandler           ; Window Watchdog
                DCD     PVD_IRQHandler            ; PVD through EXTI Line detect
                DCD     TAMPER_IRQHandler         ; Tamper
                DCD     RTC_IRQHandler            ; RTC
                DCD     FLASH_IRQHandler          ; Flash
                DCD     RCC_IRQHandler            ; RCC
                DCD     EXTI0_IRQHandler          ; EXTI Line 0
                DCD     EXTI1_IRQHandler          ; EXTI Line 1
                DCD     EXTI2_IRQHandler          ; EXTI Line 2
                DCD     EXTI3_IRQHandler          ; EXTI Line 3
                DCD     EXTI4_IRQHandler          ; EXTI Line 4
                DCD     DMA1_Channel1_IRQHandler  ; DMA1 Channel 1
                DCD     DMA1_Channel2_IRQHandler  ; DMA1 Channel 2
                DCD     DMA1_Channel3_IRQHandler  ; DMA1 Channel 3
                DCD     DMA1_Channel4_IRQHandler  ; DMA1 Channel 4
                DCD     DMA1_Channel5_IRQHandler  ; DMA1 Channel 5
                DCD     DMA1_Channel6_IRQHandler  ; DMA1 Channel 6
                DCD     DMA1_Channel7_IRQHandler  ; DMA1 Channel 7
                DCD     ADC1_2_IRQHandler         ; ADC1 & ADC2
                DCD     USB_HP_CAN1_TX_IRQHandler  ; USB High Priority or CAN1 TX
                DCD     USB_LP_CAN1_RX0_IRQHandler ; USB Low  Priority or CAN1 RX0
                DCD     CAN1_RX1_IRQHandler       ; CAN1 RX1
                DCD     CAN1_SCE_IRQHandler       ; CAN1 SCE
                DCD     EXTI9_5_IRQHandler        ; EXTI Line 9..5
                DCD     TIM1_BRK_IRQHandler       ; TIM1 Break
                DCD     TIM1_UP_IRQHandler        ; TIM1 Update
                DCD     TIM1_TRG_COM_IRQHandler   ; TIM1 Trigger and Commutation
                DCD     TIM1_CC_IRQHandler        ; TIM1 Capture Compare
                DCD     TIM2_IRQHandler           ; TIM2
                DCD     TIM3_IRQHandler           ; TIM3
                DCD     TIM4_IRQHandler           ; TIM4
                DCD     I2C1_EV_IRQHandler        ; I2C1 Event
                DCD     I2C1_ER_IRQHandler        ; I2C1 Error
                DCD     I2C2_EV_IRQHandler        ; I2C2 Event
                DCD     I2C2_ER_IRQHandler        ; I2C2 Error
                DCD     SPI1_IRQHandler           ; SPI1
                DCD     SPI2_IRQHandler           ; SPI2
                DCD     USART1_IRQHandler         ; USART1
                DCD     USART2_IRQHandler         ; USART2
                DCD     USART3_IRQHandler         ; USART3
                DCD     EXTI15_10_IRQHandler      ; EXTI Line 15..10
                DCD     RTCAlarm_IRQHandler       ; RTC Alarm through EXTI Line
                DCD     USBWakeUp_IRQHandler      ; USB Wakeup from suspend
                DCD     TIM8_BRK_IRQHandler       ; TIM8 Break
                DCD     TIM8_UP_IRQHandler        ; TIM8 Update
                DCD     TIM8_TRG_COM_IRQHandler   ; TIM8 Trigger and Commutation
                DCD     TIM8_CC_IRQHandler        ; TIM8 Capture Compare
                DCD     ADC3_IRQHandler           ; ADC3
                DCD     FSMC_IRQHandler           ; FSMC
                DCD     SDIO_IRQHandler           ; SDIO
                DCD     TIM5_IRQHandler           ; TIM5
                DCD     SPI3_IRQHandler           ; SPI3
                DCD     UART4_IRQHandler          ; UART4
                DCD     UART5_IRQHandler          ; UART5
                DCD     TIM6_IRQHandler           ; TIM6
                DCD     TIM7_IRQHandler           ; TIM7
                DCD     DMA2_Channel1_IRQHandler  ; DMA2 Channel1
                DCD     DMA2_Channel2_IRQHandler  ; DMA2 Channel2
                DCD     DMA2_Channel3_IRQHandler  ; DMA2 Channel3
                DCD     DMA2_Channel4_5_IRQHandler ; DMA2 Channel4 & Channel5

这60个中断函数  只有5个外部中断  ，其他都是事件么？要是想设置线16为外部中断 该怎么办呢？为什么中断向量表里木有写呢？ 

                 DCD     EXTI0_IRQHandler          ; EXTI Line 0
                DCD     EXTI1_IRQHandler          ; EXTI Line 1
                DCD     EXTI2_IRQHandler          ; EXTI Line 2
                DCD     EXTI3_IRQHandler          ; EXTI Line 3
                DCD     EXTI4_IRQHandler          ; EXTI Line 4

emWin

虽然M3支持240个外部中断，F10x只设计了部分，其中楼主提到的EXTI，合并了2组。

冷冷的暖阳

线10-16都被定义在EXTI15_10_IRQHandler