STM32中斷向量表初探

cortex-M3的異常向量表中的內(nèi)容并不是指令，0x00000000處(當然也可能映射到別的范圍)是主堆棧指針的數(shù)值，0x00000004的內(nèi)容是復位后需要跳轉到的地址，是一個地址而不是一條指令。

0x08000000數(shù)據(jù)如下(memory 窗口查看--STM32小端)：

10 02 00 20 05 19 00 08

AREA RESET, DATA, READONLY

EXPORT __Vectors

__Vectors DCD __initial_sp //0x20000210; Top of Stack

DCD Reset_Handler //0x08001905; Reset Handler---最后跳轉到main函數(shù)

DCD NMI_Handler //0x08001909; NMI Handler

DCD HardFault_Handler //0x0800190B; Hard Fault Handler

DCD MemManage_Handler //0x0800190D; MPU Fault Handler

DCD BusFault_Handler //0x0800190F; Bus Fault Handler

DCD UsageFault_Handler //0x08001911; Usage Fault Handler

DCD 0 //0x00000000 ; Reserved

DCD 0 //0x00000000; Reserved

DCD 0 //0x00000000; Reserved

DCD 0 //0x00000000; Reserved

DCD SVC_Handler //0x08001913; SVCall Handler

DCD DebugMon_Handler //0x08001915; Debug Monitor Handler

DCD 0 ; Reserved

DCD PendSV_Handler //0x08001917; PendSV Handler

DCD SysTick_Handler //0x08000101; SysTick Handler

; External Interrupts

DCD WWDG_IRQHandler //0x0800191B; Window Watchdog

DCD PVD_IRQHandler //0x0800191B; PVD through EXTI Line detect

DCD TAMPER_IRQHandler //0x0800191B; Tamper

DCD RTC_IRQHandler //0x0800191B; RTC

DCD FLASH_IRQHandler //0x0800191B; Flash

DCD RCC_IRQHandler //0x0800191B; RCC

DCD EXTI0_IRQHandler //0x0800191B; EXTI Line 0

DCD EXTI1_IRQHandler //0x0800191B; EXTI Line 1

DCD EXTI2_IRQHandler //0x0800191B; EXTI Line 2

DCD EXTI3_IRQHandler //0x0800191B; EXTI Line 3

DCD EXTI4_IRQHandler //0x0800191B; EXTI Line 4

DCD DMAChannel1_IRQHandler //0x0800191B; DMA Channel 1

DCD DMAChannel2_IRQHandler //0x0800191B; DMA Channel 2

DCD DMAChannel3_IRQHandler //0x0800191B; DMA Channel 3

DCD DMAChannel4_IRQHandler //0x0800191B; DMA Channel 4

DCD DMAChannel5_IRQHandler //0x0800191B; DMA Channel 5

DCD DMAChannel6_IRQHandler //0x0800191B; DMA Channel 6

DCD DMAChannel7_IRQHandler //0x0800191B; DMA Channel 7

DCD ADC_IRQHandler //0x0800191B; ADC

DCD USB_HP_CAN_TX_IRQHandler //0x0800191B; USB High Priority or CAN TX

DCD USB_LP_CAN_RX0_IRQHandler //0x0800191B; USB Low Priority or CAN RX0

DCD CAN_RX1_IRQHandler //0x0800191B; CAN RX1

DCD CAN_SCE_IRQHandler //0x0800191B; CAN SCE

DCD EXTI9_5_IRQHandler //0x0800191B; EXTI Line 9..5

DCD TIM1_BRK_IRQHandler //0x0800191B; TIM1 Break

DCD TIM1_UP_IRQHandler //0x0800191B; TIM1 Update

DCD TIM1_TRG_COM_IRQHandler //0x0800191B; TIM1 Trigger and Commutation

DCD TIM1_CC_IRQHandler //0x0800191B; TIM1 Capture Compare

DCD TIM2_IRQHandler //0x0800191B; TIM2

DCD TIM3_IRQHandler //0x0800191B; TIM3

DCD TIM4_IRQHandler //0x0800191B; TIM4

DCD I2C1_EV_IRQHandler //0x0800191B ; I2C1 Event

DCD I2C1_ER_IRQHandler //0x0800191B; I2C1 Error

DCD I2C2_EV_IRQHandler //0x0800191B ; I2C2 Event

DCD I2C2_ER_IRQHandler //0x0800191B ; I2C2 Error

DCD SPI1_IRQHandler //0x0800191B ; SPI1

DCD SPI2_IRQHandler //0x0800191B ; SPI2

DCD USART1_IRQHandler //0x0800191B ; USART1

DCD USART2_IRQHandler //0x0800191B ; USART2

DCD USART3_IRQHandler //0x0800191B ; USART3

DCD EXTI15_10_IRQHandler //0x0800191B ; EXTI Line 15..10

DCD RTCAlarm_IRQHandler //0x0800191B ; RTC Alarm through EXTI Line

0x080000EA DCD USBWakeUp_IRQHandler //0x0800191B ; USB Wakeup from suspend

0x08003608 0x20000000 0x00000010

0x08003618 0x20000010 0x00000200