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https://blog.csdn.net/xujidong1576324301/article/details/72851023
因为使用的开发板是stm32f407discovery，所以启动代码为st公司的官方库文件里的startup_stm32f40_41xxx.s，至于如何去找官方库文件，不在本节讨论的范围内，本节只是初步的分析startup_stm32f40_41xxx.s，其中更深入的东西需要在以后的章节中分析。 在startup_stm32f40_41xxx.s中，有一段注释： ;* File Name : startup_stm32f40_41xxx.s ;* Author : MCD Application Team ;* @version : V1.7.0 ;* @date : 22-April-2016 ;* Description : STM32F40xxx/41xxx devices vector table for EWARM toolchain. ;* This module performs: ;* - Set the initial SP ;* - Set the initial PC == _iar_program_start, ;* - Set the vector table entries with the exceptions ISR ;* address. ;* - Configure the system clock and the external SRAM mounted on ;* STM324xG-EVAL board to be used as data memory (optional, ;* to be enabled by user) ;* - Branches to main in the C library (which eventually ;* calls main()). ;* After Reset the Cortex-M4 processor is in Thread mode, ;* priority is Privileged, and the Stack is set to Main. 这一段重点介绍了这段启动代码干了些什么 1、初始化SP(堆栈指针) 2、将PC(程序指针)设置为_iar_program_start 3、设置中断向量表的地址 4、配置系统时钟，并且将挂载外部SRAM作为数据存储器 5、跳转到main函数执行C库 通过以上的解释，我们大体可以了解startup_stm32f40_41xxx.s的功能，下面我们开始正式的代码分析： MODULE ?cstartup
;; Forward declaration of sections. SECTION CSTACK:DATA:NOROOT(3)
SECTION .intvec:CODE:NOROOT(2)
EXTERN __iar_program_start EXTERN SystemInit PUBLIC __vector_table
DATA 相信看了上面这段代码，你一定开始懵逼（包括我也是）原因是对指令的不熟悉，具体指令请参考EWARM_AssemblerReference.ENU.pdf（不在此次分析的范围），下面我大体解释一下每句含义： 这一段的作用类似于C语言的头文件 ;;格式：PROGRAM symbol-------symbol为模块的名字（如?cstartup），PROGRAM 为指令关键子（如MODULE） MODULE ?cstartup ;;标志汇编模块的开始，使用方法如下
;; Forward declaration of sections. ;;段前置声明（类似于c语言中定义一个函数在使用前需要声明一下） ;;格式：SECTION section :type [flag] [(align)] ;;NOROOT表示如果这个段里的标号（如CSTACK/ .intvec）没有引用，则被舍弃；ROOT表示不舍弃 ;;(1)表示字节对其，(2)表示4字节对其，(3)表示8字节对其 SECTION CSTACK:DATA:NOROOT(3);;定义CSTACK数据段
SECTION .intvec:CODE:NOROOT(2);;定义.intvec代码段 ;;以上如想深入了解参看stm32f4xx_flash.icf
EXTERN __iar_program_start;;声明外部函数，此函数是iar的官方库函数，无法看到函数原型 EXTERN SystemInit;;声明外部函数，主要功能是设置初始化系统时钟，配置SRAM PUBLIC __vector_table;;类似于全局变量，外部可以调用
DATA
__vector_table ;;格式：DCD expr [,expr] … ;Generates 32-bit constants.生成32bit常数 DCD sfe(CSTACK);;格式：SFE (section [{+ | -} offset]) 返回section段结束地址，SFB(section)返回section段开始地址; 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 CRYP_IRQHandler ; CRYP crypto DCD HASH_RNG_IRQHandler ; Hash and Rng DCD FPU_IRQHandler ; FPU ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;; Default interrupt handlers. ;; THUMB ;;使用thumb指令集 PUBWEAK Reset_Handler;;弱定义一个函数，当复位异常时跳转到Reset_Handler SECTION .text:CODE:REORDER:NOROOT(2) Reset_Handler
LDR R0, =SystemInit BLX R0 ;;跳转到SystemInit，进行系统时钟的初始化 LDR R0, =__iar_program_start BX R0;;跳转到__iar_program_start，此函数不可见
PUBWEAK NMI_Handler SECTION .text:CODE:REORDER:NOROOT(1) NMI_Handler B NMI_Handler
PUBWEAK HardFault_Handler SECTION .text:CODE:REORDER:NOROOT(1) HardFault_Handler B HardFault_Handler
PUBWEAK MemManage_Handler SECTION .text:CODE:REORDER:NOROOT(1) MemManage_Handler B MemManage_Handler
PUBWEAK BusFault_Handler SECTION .text:CODE:REORDER:NOROOT(1) BusFault_Handler B BusFault_Handler
PUBWEAK UsageFault_Handler SECTION .text:CODE:REORDER:NOROOT(1) UsageFault_Handler B UsageFault_Handler
PUBWEAK SVC_Handler SECTION .text:CODE:REORDER:NOROOT(1) SVC_Handler B SVC_Handler
PUBWEAK DebugMon_Handler SECTION .text:CODE:REORDER:NOROOT(1) DebugMon_Handler B DebugMon_Handler
PUBWEAK PendSV_Handler SECTION .text:CODE:REORDER:NOROOT(1) PendSV_Handler B PendSV_Handler
PUBWEAK SysTick_Handler SECTION .text:CODE:REORDER:NOROOT(1) SysTick_Handler B SysTick_Handler
PUBWEAK WWDG_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) WWDG_IRQHandler B WWDG_IRQHandler
PUBWEAK PVD_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) PVD_IRQHandler B PVD_IRQHandler
PUBWEAK TAMP_STAMP_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TAMP_STAMP_IRQHandler B TAMP_STAMP_IRQHandler
PUBWEAK RTC_WKUP_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) RTC_WKUP_IRQHandler B RTC_WKUP_IRQHandler
PUBWEAK FLASH_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) FLASH_IRQHandler B FLASH_IRQHandler
PUBWEAK RCC_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) RCC_IRQHandler B RCC_IRQHandler
PUBWEAK EXTI0_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) EXTI0_IRQHandler B EXTI0_IRQHandler
PUBWEAK EXTI1_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) EXTI1_IRQHandler B EXTI1_IRQHandler
PUBWEAK EXTI2_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) EXTI2_IRQHandler B EXTI2_IRQHandler
PUBWEAK EXTI3_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) EXTI3_IRQHandler B EXTI3_IRQHandler
PUBWEAK EXTI4_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) EXTI4_IRQHandler B EXTI4_IRQHandler
PUBWEAK DMA1_Stream0_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream0_IRQHandler B DMA1_Stream0_IRQHandler
PUBWEAK DMA1_Stream1_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream1_IRQHandler B DMA1_Stream1_IRQHandler
PUBWEAK DMA1_Stream2_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream2_IRQHandler B DMA1_Stream2_IRQHandler
PUBWEAK DMA1_Stream3_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream3_IRQHandler B DMA1_Stream3_IRQHandler
PUBWEAK DMA1_Stream4_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream4_IRQHandler B DMA1_Stream4_IRQHandler
PUBWEAK DMA1_Stream5_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream5_IRQHandler B DMA1_Stream5_IRQHandler
PUBWEAK DMA1_Stream6_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream6_IRQHandler B DMA1_Stream6_IRQHandler
PUBWEAK ADC_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) ADC_IRQHandler B ADC_IRQHandler
PUBWEAK CAN1_TX_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN1_TX_IRQHandler B CAN1_TX_IRQHandler
PUBWEAK CAN1_RX0_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN1_RX0_IRQHandler B CAN1_RX0_IRQHandler
PUBWEAK CAN1_RX1_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN1_RX1_IRQHandler B CAN1_RX1_IRQHandler
PUBWEAK CAN1_SCE_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN1_SCE_IRQHandler B CAN1_SCE_IRQHandler
PUBWEAK EXTI9_5_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) EXTI9_5_IRQHandler B EXTI9_5_IRQHandler
PUBWEAK TIM1_BRK_TIM9_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM1_BRK_TIM9_IRQHandler B TIM1_BRK_TIM9_IRQHandler
PUBWEAK TIM1_UP_TIM10_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM1_UP_TIM10_IRQHandler B TIM1_UP_TIM10_IRQHandler
PUBWEAK TIM1_TRG_COM_TIM11_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM1_TRG_COM_TIM11_IRQHandler B TIM1_TRG_COM_TIM11_IRQHandler PUBWEAK TIM1_CC_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM1_CC_IRQHandler B TIM1_CC_IRQHandler
PUBWEAK TIM2_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM2_IRQHandler B TIM2_IRQHandler
PUBWEAK TIM3_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM3_IRQHandler B TIM3_IRQHandler
PUBWEAK TIM4_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM4_IRQHandler B TIM4_IRQHandler
PUBWEAK I2C1_EV_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) I2C1_EV_IRQHandler B I2C1_EV_IRQHandler
PUBWEAK I2C1_ER_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) I2C1_ER_IRQHandler B I2C1_ER_IRQHandler
PUBWEAK I2C2_EV_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) I2C2_EV_IRQHandler B I2C2_EV_IRQHandler
PUBWEAK I2C2_ER_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) I2C2_ER_IRQHandler B I2C2_ER_IRQHandler
PUBWEAK SPI1_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) SPI1_IRQHandler B SPI1_IRQHandler
PUBWEAK SPI2_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) SPI2_IRQHandler B SPI2_IRQHandler
PUBWEAK USART1_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) USART1_IRQHandler B USART1_IRQHandler
PUBWEAK USART2_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) USART2_IRQHandler B USART2_IRQHandler
PUBWEAK USART3_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) USART3_IRQHandler B USART3_IRQHandler
PUBWEAK EXTI15_10_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) EXTI15_10_IRQHandler B EXTI15_10_IRQHandler
PUBWEAK RTC_Alarm_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) RTC_Alarm_IRQHandler B RTC_Alarm_IRQHandler
PUBWEAK OTG_FS_WKUP_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) OTG_FS_WKUP_IRQHandler B OTG_FS_WKUP_IRQHandler PUBWEAK TIM8_BRK_TIM12_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM8_BRK_TIM12_IRQHandler B TIM8_BRK_TIM12_IRQHandler
PUBWEAK TIM8_UP_TIM13_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM8_UP_TIM13_IRQHandler B TIM8_UP_TIM13_IRQHandler
PUBWEAK TIM8_TRG_COM_TIM14_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM8_TRG_COM_TIM14_IRQHandler B TIM8_TRG_COM_TIM14_IRQHandler
PUBWEAK TIM8_CC_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM8_CC_IRQHandler B TIM8_CC_IRQHandler
PUBWEAK DMA1_Stream7_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA1_Stream7_IRQHandler B DMA1_Stream7_IRQHandler
PUBWEAK FSMC_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) FSMC_IRQHandler B FSMC_IRQHandler
PUBWEAK SDIO_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) SDIO_IRQHandler B SDIO_IRQHandler
PUBWEAK TIM5_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM5_IRQHandler B TIM5_IRQHandler
PUBWEAK SPI3_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) SPI3_IRQHandler B SPI3_IRQHandler
PUBWEAK UART4_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) UART4_IRQHandler B UART4_IRQHandler
PUBWEAK UART5_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) UART5_IRQHandler B UART5_IRQHandler
PUBWEAK TIM6_DAC_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM6_DAC_IRQHandler B TIM6_DAC_IRQHandler
PUBWEAK TIM7_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) TIM7_IRQHandler B TIM7_IRQHandler
PUBWEAK DMA2_Stream0_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream0_IRQHandler B DMA2_Stream0_IRQHandler
PUBWEAK DMA2_Stream1_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream1_IRQHandler B DMA2_Stream1_IRQHandler
PUBWEAK DMA2_Stream2_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream2_IRQHandler B DMA2_Stream2_IRQHandler
PUBWEAK DMA2_Stream3_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream3_IRQHandler B DMA2_Stream3_IRQHandler
PUBWEAK DMA2_Stream4_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream4_IRQHandler B DMA2_Stream4_IRQHandler
PUBWEAK ETH_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) ETH_IRQHandler B ETH_IRQHandler
PUBWEAK ETH_WKUP_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) ETH_WKUP_IRQHandler B ETH_WKUP_IRQHandler
PUBWEAK CAN2_TX_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN2_TX_IRQHandler B CAN2_TX_IRQHandler
PUBWEAK CAN2_RX0_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN2_RX0_IRQHandler B CAN2_RX0_IRQHandler
PUBWEAK CAN2_RX1_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN2_RX1_IRQHandler B CAN2_RX1_IRQHandler
PUBWEAK CAN2_SCE_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CAN2_SCE_IRQHandler B CAN2_SCE_IRQHandler
PUBWEAK OTG_FS_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) OTG_FS_IRQHandler B OTG_FS_IRQHandler
PUBWEAK DMA2_Stream5_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream5_IRQHandler B DMA2_Stream5_IRQHandler
PUBWEAK DMA2_Stream6_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream6_IRQHandler B DMA2_Stream6_IRQHandler
PUBWEAK DMA2_Stream7_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DMA2_Stream7_IRQHandler B DMA2_Stream7_IRQHandler
PUBWEAK USART6_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) USART6_IRQHandler B USART6_IRQHandler
PUBWEAK I2C3_EV_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) I2C3_EV_IRQHandler B I2C3_EV_IRQHandler
PUBWEAK I2C3_ER_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) I2C3_ER_IRQHandler B I2C3_ER_IRQHandler
PUBWEAK OTG_HS_EP1_OUT_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) OTG_HS_EP1_OUT_IRQHandler B OTG_HS_EP1_OUT_IRQHandler
PUBWEAK OTG_HS_EP1_IN_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) OTG_HS_EP1_IN_IRQHandler B OTG_HS_EP1_IN_IRQHandler
PUBWEAK OTG_HS_WKUP_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) OTG_HS_WKUP_IRQHandler B OTG_HS_WKUP_IRQHandler
PUBWEAK OTG_HS_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) OTG_HS_IRQHandler B OTG_HS_IRQHandler
PUBWEAK DCMI_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) DCMI_IRQHandler B DCMI_IRQHandler
PUBWEAK CRYP_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) CRYP_IRQHandler B CRYP_IRQHandler
PUBWEAK HASH_RNG_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) HASH_RNG_IRQHandler B HASH_RNG_IRQHandler
PUBWEAK FPU_IRQHandler SECTION .text:CODE:REORDER:NOROOT(1) FPU_IRQHandler B FPU_IRQHandler
END /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 此次分析只是面上，具体其中的细节，请看下次分析，如有不对之处，希望各位大神指出 --------------------- 作者：Jkdon 来源： 原文：https://blog.csdn.net/xujidong1576324301/article/details/72851023 版权声明：本文为博主原创文章，转载请附上博文链接！
