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STM32F103的startup启动代码注释，错过绝对后悔

问答对人有帮助，内容完整，我也想知道答案 0 STM32F103的startup启动代码注释，错过绝对后悔 0
2021-12-14 07:07:28　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × heks 该类别下有 54 个回答。邀请回答 hgimtk 该类别下有 45 个回答。邀请回答新星之火12138 该类别下有 43 个回答。邀请回答 chm5 该类别下有 42 个回答。邀请回答 wang21cj 该类别下有 41 个回答。邀请回答 hjfjsdgfjdsf 该类别下有 38 个回答。邀请回答 werywer 该类别下有 36 个回答。邀请回答 fdjslkjd 该类别下有 35 个回答。邀请回答 uvysdfydad 该类别下有 35 个回答。邀请回答 h1654155957.9520 该类别下有 35 个回答。邀请回答凤毛麟角该类别下有 34 个回答。邀请回答维生素B2 该类别下有 34 个回答。邀请回答江左盟该类别下有 34 个回答。邀请回答 dfzvzs 该类别下有 34 个回答。邀请回答 jenny042 该类别下有 34 个回答。邀请回答爱与友人该类别下有 33 个回答。邀请回答 wenminglang 该类别下有 33 个回答。邀请回答 lining870815844 该类别下有 33 个回答。邀请回答储蓄叛逆该类别下有 33 个回答。邀请回答 ggfvxv 该类别下有 33 个回答。邀请回答举报李丽相关推荐 • STM32F103的知识点汇总，错过绝对后悔 1192 • stm32f103c8t6的知识点分享，错过绝对后悔 912 • STM32F103固件库源码分析介绍，错过绝对后悔 1074 • stm32f103中的电路知识点大合集，错过后悔 1198 • stm32f103 keil5 HAL库UART中断接收的知识点汇总，错过绝对后悔 1826 • STM32F103固件库编程的知识点汇总，错过绝对后悔 1394 • STM32固件库分析，错过绝对后悔 1406 • STM32F407引脚资源大合集，错过绝对后悔 1866 • stm32f1串口DMA接收定长数据总结，错过绝对后悔 1068 • STM32F103和STM32F107的主要区别有哪些 3412 1个回答

答案对人有帮助，有参考价值 0 ;****************** (C) COPYRIGHT 2011 STMicroelectronics ****************** ;* File Name : startup_stm32f10x_hd.s ;* Author : MCD Application Team ;* Version : V3.5.0 ;* Date : 11-March-2011 ;* Description : STM32F10x High Density Devices vector table for MDK-ARM ;* toolchain. ;* This module performs: ;* - Set the initial SP ;* - Set the initial PC == Reset_Handler ;* - Set the vector table entries with the exceptions ISR address ;* - Configure the clock system and also configure the external ;* SRAM mounted on STM3210E-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 CortexM3 processor is in Thread mode, ;* priority is Privileged, and the Stack is set to Main. ;* <<< Use Configuration Wizard in Context Menu >>> ;***************************************************************************** ; THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS ; WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. ; AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, ; INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE ; CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING ; INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. ;***************************************************************************** ; Amount of memory (in bytes) allocated for Stack ; Tailor this value to your application needs ; Stack Configuration ; Stack Size (in Bytes) <0x0-0xFFFFFFFF:8> ; Stack_Size EQU 0x00000400 ;定义栈大小 AREA STACK, NOINIT, READWRITE, ALIGN=3 ;开辟数据空间，定义属性 Stack_Mem SPACE Stack_Size ;分配这么大的空间 __initial_sp ;给到__initial_sp栈顶地址指针 ; Heap Configuration ; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8> ; Heap_Size EQU 0x00000200 ;定义堆大小 AREA HEAP, NOINIT, READWRITE, ALIGN=3 ;定义内存空间属性 __heap_base ;堆的开始地址 Heap_Mem SPACE Heap_Size ;分配内存 __heap_limit ;堆的结束地址 PRESERVE8 ;保证当前文件堆栈8字节对齐 THUMB ;表示后面的指令是THUMB指令集 ; Vector Table Mapped to Address 0 at Reset AREA RESET, DATA, READONLY ;定义一块数据段，名字叫RESET，只读，缺省就表示代码段 EXPORT __Vectors ;将3个标号申请可为外部文件使用，主要提供给连接器用于连接库文件或其他文件，针对IMPORT EXPORT __Vectors_End EXPORT __Vectors_Size ;建立中断向量表,产生某个中断后，硬件（NVIC）会通过中断号（每个中断都有自己的中断号）自动计算出数组元素的偏移，然后通过该偏移找到对应元素，从里面去除中断函数的入口地址并调用中断函数 __Vectors DCD __initial_sp ; Top of Stack ;DCD代表分配一个4字节的空间 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 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 __Vectors_End __Vectors_Size EQU __Vectors_End - __Vectors AREA \|.text\|, CODE, READONLY ;定义一块代码段，只读，段名字是.text ;利用PROC、ENDP这一对伪指令把程序段分为若干个过程，使程序的结构更加清晰 ; Reset handler Reset_Handler PROC ;程序段的开始 EXPORT Reset_Handler [WEAK] IMPORT __main ;引进_main、SystemInit方便调用，将该标号添加到当前源文件的符号表中 IMPORT SystemInit LDR R0, =SystemInit ;通过LDR加载中断复位程序的入口地址到R0寄存器里 BLX R0 ;跳转到这个函数里面进行执行 ;_main标号表示C/C++标准实时库里的一个初始化子程序_main的入口地址，该程序的主要作用是初始化堆栈（跳转_user_initial_stackheap标号进行初始化堆栈），并初始化映像文件，最后跳转到C程序中的main函数。这就解释了为何所有的C程序必须有一个main函数作为程序的起点，这是由于C/C++标准实时库所规定，并且不能更改 LDR R0, =__main ;加载_main函数到R0 BX R0 ;跳转到R0进行执行 ENDP ;程序段的结束 ; Dummy Exception Handlers (infinite loops which can be modified) /其他的中断服务程序/ NMI_Handler PROC ;不可屏蔽中断 EXPORT NMI_Handler [WEAK] ;WEAK表示如果外部有同名函数，则此段函数失效，以外部定义为准 B . ;死循环，用户可以在此实现自己的中断服务程序 ENDP HardFault_Handler ;硬件异常 PROC EXPORT HardFault_Handler [WEAK] B . ENDP MemManage_Handler PROC EXPORT MemManage_Handler [WEAK] B . ENDP BusFault_Handler PROC EXPORT BusFault_Handler [WEAK] B . ENDP UsageFault_Handler PROC EXPORT UsageFault_Handler [WEAK] B . ENDP SVC_Handler PROC EXPORT SVC_Handler [WEAK] B . ENDP DebugMon_Handler PROC EXPORT DebugMon_Handler [WEAK] B . ENDP PendSV_Handler PROC EXPORT PendSV_Handler [WEAK] B . ENDP SysTick_Handler PROC ;滴答定时器 EXPORT SysTick_Handler [WEAK] B . ENDP Default_Handler PROC ;默认的中断服务程序开始（外设） EXPORT WWDG_IRQHandler [WEAK] EXPORT PVD_IRQHandler [WEAK] EXPORT TAMPER_IRQHandler [WEAK] EXPORT RTC_IRQHandler [WEAK] EXPORT FLASH_IRQHandler [WEAK] EXPORT RCC_IRQHandler [WEAK] EXPORT EXTI0_IRQHandler [WEAK] EXPORT EXTI1_IRQHandler [WEAK] EXPORT EXTI2_IRQHandler [WEAK] EXPORT EXTI3_IRQHandler [WEAK] EXPORT EXTI4_IRQHandler [WEAK] EXPORT DMA1_Channel1_IRQHandler [WEAK] EXPORT DMA1_Channel2_IRQHandler [WEAK] EXPORT DMA1_Channel3_IRQHandler [WEAK] EXPORT DMA1_Channel4_IRQHandler [WEAK] EXPORT DMA1_Channel5_IRQHandler [WEAK] EXPORT DMA1_Channel6_IRQHandler [WEAK] EXPORT DMA1_Channel7_IRQHandler [WEAK] EXPORT ADC1_2_IRQHandler [WEAK] EXPORT USB_HP_CAN1_TX_IRQHandler [WEAK] EXPORT USB_LP_CAN1_RX0_IRQHandler [WEAK] EXPORT CAN1_RX1_IRQHandler [WEAK] EXPORT CAN1_SCE_IRQHandler [WEAK] EXPORT EXTI9_5_IRQHandler [WEAK] EXPORT TIM1_BRK_IRQHandler [WEAK] EXPORT TIM1_UP_IRQHandler [WEAK] EXPORT TIM1_TRG_COM_IRQHandler [WEAK] EXPORT TIM1_CC_IRQHandler [WEAK] EXPORT TIM2_IRQHandler [WEAK] EXPORT TIM3_IRQHandler [WEAK] EXPORT TIM4_IRQHandler [WEAK] EXPORT I2C1_EV_IRQHandler [WEAK] EXPORT I2C1_ER_IRQHandler [WEAK] EXPORT I2C2_EV_IRQHandler [WEAK] EXPORT I2C2_ER_IRQHandler [WEAK] EXPORT SPI1_IRQHandler [WEAK] EXPORT SPI2_IRQHandler [WEAK] EXPORT USART1_IRQHandler [WEAK] EXPORT USART2_IRQHandler [WEAK] EXPORT USART3_IRQHandler [WEAK] EXPORT EXTI15_10_IRQHandler [WEAK] EXPORT RTCAlarm_IRQHandler [WEAK] EXPORT USBWakeUp_IRQHandler [WEAK] EXPORT TIM8_BRK_IRQHandler [WEAK] EXPORT TIM8_UP_IRQHandler [WEAK] EXPORT TIM8_TRG_COM_IRQHandler [WEAK] EXPORT TIM8_CC_IRQHandler [WEAK] EXPORT ADC3_IRQHandler [WEAK] EXPORT FSMC_IRQHandler [WEAK] EXPORT SDIO_IRQHandler [WEAK] EXPORT TIM5_IRQHandler [WEAK] EXPORT SPI3_IRQHandler [WEAK] EXPORT UART4_IRQHandler [WEAK] EXPORT UART5_IRQHandler [WEAK] EXPORT TIM6_IRQHandler [WEAK] EXPORT TIM7_IRQHandler [WEAK] EXPORT DMA2_Channel1_IRQHandler [WEAK] EXPORT DMA2_Channel2_IRQHandler [WEAK] EXPORT DMA2_Channel3_IRQHandler [WEAK] EXPORT DMA2_Channel4_5_IRQHandler [WEAK] WWDG_IRQHandler PVD_IRQHandler TAMPER_IRQHandler RTC_IRQHandler FLASH_IRQHandler RCC_IRQHandler EXTI0_IRQHandler EXTI1_IRQHandler EXTI2_IRQHandler EXTI3_IRQHandler EXTI4_IRQHandler DMA1_Channel1_IRQHandler DMA1_Channel2_IRQHandler DMA1_Channel3_IRQHandler DMA1_Channel4_IRQHandler DMA1_Channel5_IRQHandler DMA1_Channel6_IRQHandler DMA1_Channel7_IRQHandler ADC1_2_IRQHandler USB_HP_CAN1_TX_IRQHandler USB_LP_CAN1_RX0_IRQHandler CAN1_RX1_IRQHandler CAN1_SCE_IRQHandler EXTI9_5_IRQHandler TIM1_BRK_IRQHandler TIM1_UP_IRQHandler TIM1_TRG_COM_IRQHandler TIM1_CC_IRQHandler TIM2_IRQHandler TIM3_IRQHandler TIM4_IRQHandler I2C1_EV_IRQHandler I2C1_ER_IRQHandler I2C2_EV_IRQHandler I2C2_ER_IRQHandler SPI1_IRQHandler SPI2_IRQHandler USART1_IRQHandler USART2_IRQHandler USART3_IRQHandler EXTI15_10_IRQHandler RTCAlarm_IRQHandler USBWakeUp_IRQHandler TIM8_BRK_IRQHandler TIM8_UP_IRQHandler TIM8_TRG_COM_IRQHandler TIM8_CC_IRQHandler ADC3_IRQHandler FSMC_IRQHandler SDIO_IRQHandler TIM5_IRQHandler SPI3_IRQHandler UART4_IRQHandler UART5_IRQHandler TIM6_IRQHandler TIM7_IRQHandler DMA2_Channel1_IRQHandler DMA2_Channel2_IRQHandler DMA2_Channel3_IRQHandler DMA2_Channel4_5_IRQHandler B . ENDP ALIGN ;***************************************************************************** ; User Stack and Heap initialization ;*************************************************************************** IF :DEF:__MICROLIB ;定义了MICROLIB ，则使用微库来进行初始化 EXPORT __initial_sp EXPORT __heap_base EXPORT __heap_limit ELSE ;没有定义MICROLIB，则使用标准的Clib进行初始化 IMPORT __use_two_region_memory EXPORT __user_initial_stackheap __user_initial_stackheap ;进行初始化堆栈 LDR R0, = Heap_Mem ;栈初始地址 LDR R1, =(Stack_Mem + Stack_Size) ;栈初始地址+栈大小=栈结束地址 LDR R2, = (Heap_Mem + Heap_Size) ;堆初始地址+堆大小=堆结束地址 LDR R3, = Stack_Mem ;堆初始地址 BX LR ;跳转到LR寄存器里的地址执行 ALIGN ENDIF END ;*************** (C) COPYRIGHT 2011 STMicroelectronics *END OF FILE***

2021-12-14 10:33:09 评论举报孙奕