STM32F1 - 启动文件startup_stm32f10x

startup_stm32f10x_hd.s

1> 启动文件类型
2> 启动文件干了点啥？
- 2.1> 设置栈
- 2.2> 设置堆
- 2.3> 设置中断向量表
- 2.4> 复位程序
- 2.5> 中断服务函数
- 2.6> 用户栈和堆的初始化
3> __main库函数

1> 启动文件类型

标准库中提供：启动文件（汇编代码）

表格来自stm32f10x.h总结，省略STM32 value line devices系列产品

2> 启动文件干了点啥？

2.1> 设置栈

Set the initial SP

Stack_Size      EQU     0x00000400AREA    STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem       SPACE   Stack_Size
__initial_sp

定义栈空间大小：1KByte；

16进制0x400，也就是10进制的1024;

__initial_sp

__initial_sp 紧挨了SPACE放置，表示栈的结束地址，
栈是从高往低生长，结束地址就是栈顶地址。

2.2> 设置堆

Heap_Size       EQU     0x00000200AREA    HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem        SPACE   Heap_Size
__heap_limit

定义栈空间大小：0x200， 512Byte；

2.3> 设置中断向量表

; Vector Table Mapped to Address 0 at ResetAREA    RESET, DATA, READONLYEXPORT  __VectorsEXPORT  __Vectors_EndEXPORT  __Vectors_Size__Vectors       DCD     __initial_sp               ; Top of StackDCD     Reset_Handler              ; Reset HandlerDCD     NMI_Handler                ; NMI HandlerDCD     HardFault_Handler          ; Hard Fault HandlerDCD     MemManage_Handler          ; MPU Fault HandlerDCD     BusFault_Handler           ; Bus Fault HandlerDCD     UsageFault_Handler         ; Usage Fault HandlerDCD     0                          ; ReservedDCD     0                          ; ReservedDCD     0                          ; ReservedDCD     0                          ; ReservedDCD     SVC_Handler                ; SVCall HandlerDCD     DebugMon_Handler           ; Debug Monitor HandlerDCD     0                          ; ReservedDCD     PendSV_Handler             ; PendSV HandlerDCD     SysTick_Handler            ; SysTick Handler; External InterruptsDCD     WWDG_IRQHandler            ; Window WatchdogDCD     PVD_IRQHandler             ; PVD through EXTI Line detectDCD     TAMPER_IRQHandler          ; TamperDCD     RTC_IRQHandler             ; RTCDCD     FLASH_IRQHandler           ; FlashDCD     RCC_IRQHandler             ; RCCDCD     EXTI0_IRQHandler           ; EXTI Line 0DCD     EXTI1_IRQHandler           ; EXTI Line 1DCD     EXTI2_IRQHandler           ; EXTI Line 2DCD     EXTI3_IRQHandler           ; EXTI Line 3DCD     EXTI4_IRQHandler           ; EXTI Line 4DCD     DMA1_Channel1_IRQHandler   ; DMA1 Channel 1DCD     DMA1_Channel2_IRQHandler   ; DMA1 Channel 2DCD     DMA1_Channel3_IRQHandler   ; DMA1 Channel 3DCD     DMA1_Channel4_IRQHandler   ; DMA1 Channel 4DCD     DMA1_Channel5_IRQHandler   ; DMA1 Channel 5DCD     DMA1_Channel6_IRQHandler   ; DMA1 Channel 6DCD     DMA1_Channel7_IRQHandler   ; DMA1 Channel 7DCD     ADC1_2_IRQHandler          ; ADC1 & ADC2DCD     USB_HP_CAN1_TX_IRQHandler  ; USB High Priority or CAN1 TXDCD     USB_LP_CAN1_RX0_IRQHandler ; USB Low  Priority or CAN1 RX0DCD     CAN1_RX1_IRQHandler        ; CAN1 RX1DCD     CAN1_SCE_IRQHandler        ; CAN1 SCEDCD     EXTI9_5_IRQHandler         ; EXTI Line 9..5DCD     TIM1_BRK_IRQHandler        ; TIM1 BreakDCD     TIM1_UP_IRQHandler         ; TIM1 UpdateDCD     TIM1_TRG_COM_IRQHandler    ; TIM1 Trigger and CommutationDCD     TIM1_CC_IRQHandler         ; TIM1 Capture CompareDCD     TIM2_IRQHandler            ; TIM2DCD     TIM3_IRQHandler            ; TIM3DCD     TIM4_IRQHandler            ; TIM4DCD     I2C1_EV_IRQHandler         ; I2C1 EventDCD     I2C1_ER_IRQHandler         ; I2C1 ErrorDCD     I2C2_EV_IRQHandler         ; I2C2 EventDCD     I2C2_ER_IRQHandler         ; I2C2 ErrorDCD     SPI1_IRQHandler            ; SPI1DCD     SPI2_IRQHandler            ; SPI2DCD     USART1_IRQHandler          ; USART1DCD     USART2_IRQHandler          ; USART2DCD     USART3_IRQHandler          ; USART3DCD     EXTI15_10_IRQHandler       ; EXTI Line 15..10DCD     RTCAlarm_IRQHandler        ; RTC Alarm through EXTI LineDCD     USBWakeUp_IRQHandler       ; USB Wakeup from suspendDCD     TIM8_BRK_IRQHandler        ; TIM8 BreakDCD     TIM8_UP_IRQHandler         ; TIM8 UpdateDCD     TIM8_TRG_COM_IRQHandler    ; TIM8 Trigger and CommutationDCD     TIM8_CC_IRQHandler         ; TIM8 Capture CompareDCD     ADC3_IRQHandler            ; ADC3DCD     FSMC_IRQHandler            ; FSMCDCD     SDIO_IRQHandler            ; SDIODCD     TIM5_IRQHandler            ; TIM5DCD     SPI3_IRQHandler            ; SPI3DCD     UART4_IRQHandler           ; UART4DCD     UART5_IRQHandler           ; UART5DCD     TIM6_IRQHandler            ; TIM6DCD     TIM7_IRQHandler            ; TIM7DCD     DMA2_Channel1_IRQHandler   ; DMA2 Channel1DCD     DMA2_Channel2_IRQHandler   ; DMA2 Channel2DCD     DMA2_Channel3_IRQHandler   ; DMA2 Channel3DCD     DMA2_Channel4_5_IRQHandler ; DMA2 Channel4 & Channel5
__Vectors_End__Vectors_Size  EQU  __Vectors_End - __VectorsAREA    |.text|, CODE, READONLY

STM32F103中断向量表：

将中断向量表，用汇编语言，建立在Flash中，

__Vectors DCD __initial_sp ; Top of Stack
地址0x0000 0000存放的就是，栈指针SP；

DCD Reset_Handler
地址0x0000 0004存放的就是，复位函数指针；

从代码上看，向量表中存放的都是中断服务函数的函数名，函数名就是一个地址；

2.4> 复位程序

                AREA    |.text|, CODE, READONLY   
; Reset handler
Reset_Handler   PROCEXPORT  Reset_Handler             [WEAK]IMPORT  __mainIMPORT  SystemInitLDR     R0, =SystemInitBLX     R0               LDR     R0, =__mainBX      R0ENDP

STM32F103上电执行的第1个程序Reset_Handler()
先调用SystemInit(){初始化时钟}
再调用main()函数

2.5> 中断服务函数

; Dummy Exception Handlers (infinite loops which can be modified)NMI_Handler     PROCEXPORT  NMI_Handler                [WEAK]B       .ENDP
HardFault_Handler\PROCEXPORT  HardFault_Handler          [WEAK]B       .ENDP
MemManage_Handler\PROCEXPORT  MemManage_Handler          [WEAK]B       .ENDP
BusFault_Handler\PROCEXPORT  BusFault_Handler           [WEAK]B       .ENDP
UsageFault_Handler\PROCEXPORT  UsageFault_Handler         [WEAK]B       .ENDP
SVC_Handler     PROCEXPORT  SVC_Handler                [WEAK]B       .ENDP
DebugMon_Handler\PROCEXPORT  DebugMon_Handler           [WEAK]B       .ENDP
PendSV_Handler  PROCEXPORT  PendSV_Handler             [WEAK]B       .ENDP
SysTick_Handler PROCEXPORT  SysTick_Handler            [WEAK]B       .ENDPDefault_Handler PROCEXPORT  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_IRQHandlerB       .  ; 表示无限循环ENDPALIGN

启动文件中定义中断服务函数，用户使用需要在C文件中实现；

2.6> 用户栈和堆的初始化

;*******************************************************************************
; User Stack and Heap initialization
;*******************************************************************************IF      :DEF:__MICROLIB  EXPORT  __initial_spEXPORT  __heap_baseEXPORT  __heap_limit   ELSE      IMPORT  __use_two_region_memoryEXPORT  __user_initial_stackheap__user_initial_stackheapLDR     R0, =  Heap_MemLDR     R1, =(Stack_Mem + Stack_Size)LDR     R2, = (Heap_Mem +  Heap_Size)LDR     R3, = Stack_MemBX      LRALIGNENDIFEND