中断向量表长度

1万 · 2022-3-2 21:00

Cortex-M0/M0+/M3/M4/M7中断向量表长度怎么看呢？

1万 · 2022-3-2 21:03

看内核手册

1万 · 2022-3-2 21:04

还有就是看 start_upxxx.s 里面有 DCD 指令？

1万 · 2022-3-2 21:08

__vector_table
      DCD    sfe(CSTACK)
      DCD    Reset_Handler          ; Reset Handler

      DCD    NMI_Handler             ; NMI Handler
      DCD    HardFault_Handler       ; Hard Fault Handler
      DCD    MemManage_Handler       ; MPU Fault Handler
      DCD    BusFault_Handler       ; Bus Fault Handler
      DCD    UsageFault_Handler       ; Usage Fault Handler
      DCD    0                      ; Reserved
      DCD    0                      ; Reserved
      DCD    0                      ; Reserved
      DCD    0                      ; Reserved
      DCD    SVC_Handler             ; SVCall Handler
      DCD    DebugMon_Handler       ; Debug Monitor Handler
      DCD    0                      ; Reserved
      DCD    PendSV_Handler          ; PendSV Handler
      DCD    SysTick_Handler          ; SysTick Handler

      ; External Interrupts
      DCD    WWDG_IRQHandler                ; Window WatchDog
      DCD    PVD_IRQHandler                   ; PVD through EXTI Line detection
      DCD    TAMP_STAMP_IRQHandler          ; Tamper and TimeStamps through the EXTI line
      DCD    RTC_WKUP_IRQHandler             ; RTC Wakeup through the EXTI line
      DCD    FLASH_IRQHandler                ; FLASH
      DCD    RCC_IRQHandler                   ; RCC
      DCD    EXTI0_IRQHandler                ; EXTI Line0
      DCD    EXTI1_IRQHandler                ; EXTI Line1
      DCD    EXTI2_IRQHandler                ; EXTI Line2
      DCD    EXTI3_IRQHandler                ; EXTI Line3
      DCD    EXTI4_IRQHandler                ; EXTI Line4
      DCD    DMA1_Stream0_IRQHandler          ; DMA1 Stream 0
      DCD    DMA1_Stream1_IRQHandler          ; DMA1 Stream 1
      DCD    DMA1_Stream2_IRQHandler          ; DMA1 Stream 2
      DCD    DMA1_Stream3_IRQHandler          ; DMA1 Stream 3
      DCD    DMA1_Stream4_IRQHandler          ; DMA1 Stream 4
      DCD    DMA1_Stream5_IRQHandler          ; DMA1 Stream 5
      DCD    DMA1_Stream6_IRQHandler          ; DMA1 Stream 6
      DCD    ADC_IRQHandler                   ; ADC1, ADC2 and ADC3s
      DCD    CAN1_TX_IRQHandler             ; CAN1 TX
      DCD    CAN1_RX0_IRQHandler             ; CAN1 RX0
      DCD    CAN1_RX1_IRQHandler             ; CAN1 RX1
      DCD    CAN1_SCE_IRQHandler             ; CAN1 SCE
      DCD    EXTI9_5_IRQHandler             ; External Line[9:5]s
      DCD    TIM1_BRK_TIM9_IRQHandler       ; TIM1 Break and TIM9
      DCD    TIM1_UP_TIM10_IRQHandler       ; TIM1 Update and TIM10
      DCD    TIM1_TRG_COM_TIM11_IRQHandler    ; TIM1 Trigger and Commutation and TIM11
      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             ; External Line[15:10]s
      DCD    RTC_Alarm_IRQHandler             ; RTC Alarm (A and B) through EXTI Line
      DCD    OTG_FS_WKUP_IRQHandler          ; USB OTG FS Wakeup through EXTI line
      DCD    TIM8_BRK_TIM12_IRQHandler       ; TIM8 Break and TIM12
      DCD    TIM8_UP_TIM13_IRQHandler       ; TIM8 Update and TIM13
      DCD    TIM8_TRG_COM_TIM14_IRQHandler    ; TIM8 Trigger and Commutation and TIM14
      DCD    TIM8_CC_IRQHandler             ; TIM8 Capture Compare
      DCD    DMA1_Stream7_IRQHandler          ; DMA1 Stream7
      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_DAC_IRQHandler             ; TIM6 and DAC1&2 underrun errors
      DCD    TIM7_IRQHandler                ; TIM7
      DCD    DMA2_Stream0_IRQHandler          ; DMA2 Stream 0
      DCD    DMA2_Stream1_IRQHandler          ; DMA2 Stream 1
      DCD    DMA2_Stream2_IRQHandler          ; DMA2 Stream 2
      DCD    DMA2_Stream3_IRQHandler          ; DMA2 Stream 3
      DCD    DMA2_Stream4_IRQHandler          ; DMA2 Stream 4
      DCD    ETH_IRQHandler                   ; Ethernet
      DCD    ETH_WKUP_IRQHandler             ; Ethernet Wakeup through EXTI line
      DCD    CAN2_TX_IRQHandler             ; CAN2 TX
      DCD    CAN2_RX0_IRQHandler             ; CAN2 RX0
      DCD    CAN2_RX1_IRQHandler             ; CAN2 RX1
      DCD    CAN2_SCE_IRQHandler             ; CAN2 SCE
      DCD    OTG_FS_IRQHandler                ; USB OTG FS
      DCD    DMA2_Stream5_IRQHandler          ; DMA2 Stream 5
      DCD    DMA2_Stream6_IRQHandler          ; DMA2 Stream 6
      DCD    DMA2_Stream7_IRQHandler          ; DMA2 Stream 7
      DCD    USART6_IRQHandler                ; USART6
      DCD    I2C3_EV_IRQHandler             ; I2C3 event
      DCD    I2C3_ER_IRQHandler             ; I2C3 error
      DCD    OTG_HS_EP1_OUT_IRQHandler       ; USB OTG HS End Point 1 Out
      DCD    OTG_HS_EP1_IN_IRQHandler       ; USB OTG HS End Point 1 In
      DCD    OTG_HS_WKUP_IRQHandler          ; USB OTG HS Wakeup through EXTI
      DCD    OTG_HS_IRQHandler                ; USB OTG HS
      DCD    DCMI_IRQHandler                ; DCMI
      DCD    0                               ; Reserved
      DCD    HASH_RNG_IRQHandler             ; Hash and RNG
      DCD    FPU_IRQHandler                   ; FPU

上面是 STM32F407 的中断向量共98个；
那么 CM4 中断向量表就是98 ？？

1万 · 2022-3-2 21:10

这也看不懂啊

1万 · 2022-3-2 21:12

STM32各个系列的中断向量表在各个系列的参考手册里有介绍

1万 · 2022-3-2 21:15

比如以32f4部分系列为例：Table 61. Vector table for STM32F405xx/07xx and STM32F415xx/17xx

1万 · 2022-3-2 21:18

这个表格是基于内核对中断矢量表的约定，除了少部分中断矢量外，各个芯片制造商可以自行灵活填写向量表中各个中断矢量对应的中断事件。

1万 · 2022-3-2 21:20

1万 · 2022-3-2 21:23

嗯，我再好好缕一缕吧，有了好消息及时通知大家