8.startup_stm32f10x_hd.s文件注释:
;******************** (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
; 1.(初始化堆栈指针SP)
;* - Set the initial PC == Reset_Handler
; 2.(初始化PC指针 = Reset handler)
;* - Set the vector table entries with the exceptions ISR address
; 3.(初始化中断向量表)
;* - 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)
; (配置挂载到开发板上的SRAM,作为数据存储,是可选的,我们没有,这个我们不需要)
; 4.配置系统时钟(这个我们需要)
;* - Branches to __main in the C library (which eventually
;* calls main()).
; 5.(调用C库函数_main,最终去到C的世界)
; 以上就是启动文件的5个作用
;--------------------------------------------------------------------------------------------------------
;* 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>
;
;配置栈,变量(局部/全局),函数调用
;栈的作用是用于局部变量,函数调用,函数形参等的开销,栈的大小不能超过内部SRAM的大小。
;如果编写的程序比较大,定义的局部变量很多,那么就需要修改栈的大小。如果某一天,你写的
;程序出现了莫名奇怪的错误,并进入了硬fault的时候,这时候你就要考虑下是不是栈不够大,溢出了
;---------------------------------------------------------------------------------------------
Stack_Size EQU 0x00000400 ;1KB
AREA STACK, NOINIT, READWRITE, ALIGN=3
;area:告诉汇编器汇编一个新的代码段或者数据段。STACK表示段名,可以自己命名
;NOINIT表示不初始化,READWRITE表示可读可写,ALIGN=3表示按照2^3对齐,即8字节对齐
Stack_Mem SPACE Stack_Size
;SPACE:用于分配一定大小的内存空间,单位为字节。这里指定大小等于Stack_Size.
__initial_sp
;标号__initial_sp紧挨着SPACE语句放置,表示栈的结束地址,即栈顶地址。
;---------------------------------------------------------------------------------------------
;
Heap Configuration
; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
;
;配置堆,主要用于动态内存的分配,如malloc()函数
Heap_Size EQU 0x00000200 ;512byte
AREA HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit
PRESERVE8 ;当前堆栈以8字节对齐
THUMB
;THUMB;表示后面指令兼容THUMB指令。THUMB是ARM以前的指令集
;16bit,现在Cortex-M系列都使用THUMB-2指令集,THUMB-2是32位
;的,兼容16位和32位的指令,是THUMB的超集。
;-------------------------------------------------------------------------------------------
; Vector Table Mapped to Address 0 at Reset
;初始化中断向量表
AREA RESET, DATA, READONLY
EXPORT __Vectors ;export表示这三个标号可以供其它文件调用
EXPORT __Vectors_End
EXPORT __Vectors_Size
__Vectors DCD __initial_sp ; Top of Stack(栈顶指针)
;DCD:分配一个或者多个以字为单位的内存,以四字节对齐,并要求初始化这些内存。
;在向量表中,DCD分配了一堆内存,并且以ESR的入口地址初始化它们
DCD Reset_Handler ; Reset Handler(复位)
DCD NMI_Handler ; NMI Handler(不可屏蔽中断)
DCD HardFault_Handler ; Hard Fault Handler(硬件失效)
DCD MemManage_Handler ; MPU Fault Handler
DCD BusFault_Handler ; Bus Fault Handler(总线错误)
DCD UsageFault_Handler ; Usage Fault Handler(错误应用)
DCD 0 ; Reserved(保留)
DCD 0 ; Reserved(保留)
DCD 0 ; Reserved(保留)
DCD 0 ; Reserved(保留)
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 ;外部中断
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 ;向量表的大小=结束地址-开始地址
AREA |.text|, CODE, READONLY
; Reset handler
;复位程序
Reset_Handler PROC
EXPORT Reset_Handler [WEAK]
IMPORT __main
;寄存器版本代码,因为没有用到SystemInit函数,所以注释掉以下代码为防止报错!
;库函数版本代码,建议加上这里(外部必须实现SystemInit函数),以初始化stm32时钟等。
;IMPORT SystemInit
;LDR R0, =SystemInit
;BLX R0
LDR R0, =__main
BX R0
ENDP
;--------------------------------------------------------------------------
8.startup_stm32f10x_hd.s文件注释:
;******************** (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
; 1.(初始化堆栈指针SP)
;* - Set the initial PC == Reset_Handler
; 2.(初始化PC指针 = Reset handler)
;* - Set the vector table entries with the exceptions ISR address
; 3.(初始化中断向量表)
;* - 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)
; (配置挂载到开发板上的SRAM,作为数据存储,是可选的,我们没有,这个我们不需要)
; 4.配置系统时钟(这个我们需要)
;* - Branches to __main in the C library (which eventually
;* calls main()).
; 5.(调用C库函数_main,最终去到C的世界)
; 以上就是启动文件的5个作用
;--------------------------------------------------------------------------------------------------------
;* 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>
;
;配置栈,变量(局部/全局),函数调用
;栈的作用是用于局部变量,函数调用,函数形参等的开销,栈的大小不能超过内部SRAM的大小。
;如果编写的程序比较大,定义的局部变量很多,那么就需要修改栈的大小。如果某一天,你写的
;程序出现了莫名奇怪的错误,并进入了硬fault的时候,这时候你就要考虑下是不是栈不够大,溢出了
;---------------------------------------------------------------------------------------------
Stack_Size EQU 0x00000400 ;1KB
AREA STACK, NOINIT, READWRITE, ALIGN=3
;area:告诉汇编器汇编一个新的代码段或者数据段。STACK表示段名,可以自己命名
;NOINIT表示不初始化,READWRITE表示可读可写,ALIGN=3表示按照2^3对齐,即8字节对齐
Stack_Mem SPACE Stack_Size
;SPACE:用于分配一定大小的内存空间,单位为字节。这里指定大小等于Stack_Size.
__initial_sp
;标号__initial_sp紧挨着SPACE语句放置,表示栈的结束地址,即栈顶地址。
;---------------------------------------------------------------------------------------------
; Heap Configuration
; Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
;
;配置堆,主要用于动态内存的分配,如malloc()函数
Heap_Size EQU 0x00000200 ;512byte
AREA HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit
PRESERVE8 ;当前堆栈以8字节对齐
THUMB
;THUMB;表示后面指令兼容THUMB指令。THUMB是ARM以前的指令集
;16bit,现在Cortex-M系列都使用THUMB-2指令集,THUMB-2是32位
;的,兼容16位和32位的指令,是THUMB的超集。
;-------------------------------------------------------------------------------------------
; Vector Table Mapped to Address 0 at Reset
;初始化中断向量表
AREA RESET, DATA, READONLY
EXPORT __Vectors ;export表示这三个标号可以供其它文件调用
EXPORT __Vectors_End
EXPORT __Vectors_Size
__Vectors DCD __initial_sp ; Top of Stack(栈顶指针)
;DCD:分配一个或者多个以字为单位的内存,以四字节对齐,并要求初始化这些内存。
;在向量表中,DCD分配了一堆内存,并且以ESR的入口地址初始化它们
DCD Reset_Handler ; Reset Handler(复位)
DCD NMI_Handler ; NMI Handler(不可屏蔽中断)
DCD HardFault_Handler ; Hard Fault Handler(硬件失效)
DCD MemManage_Handler ; MPU Fault Handler
DCD BusFault_Handler ; Bus Fault Handler(总线错误)
DCD UsageFault_Handler ; Usage Fault Handler(错误应用)
DCD 0 ; Reserved(保留)
DCD 0 ; Reserved(保留)
DCD 0 ; Reserved(保留)
DCD 0 ; Reserved(保留)
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 ;外部中断
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 ;向量表的大小=结束地址-开始地址
AREA |.text|, CODE, READONLY
; Reset handler
;复位程序
Reset_Handler PROC
EXPORT Reset_Handler [WEAK]
IMPORT __main
;寄存器版本代码,因为没有用到SystemInit函数,所以注释掉以下代码为防止报错!
;库函数版本代码,建议加上这里(外部必须实现SystemInit函数),以初始化stm32时钟等。
;IMPORT SystemInit
;LDR R0, =SystemInit
;BLX R0
LDR R0, =__main
BX R0
ENDP
;--------------------------------------------------------------------------
举报