stm32f10x_startup.s的代碼

一、stm32f10x_startup.s的代碼

;***************************************************************************************
; Amount of memory (in bytes) allocated for Stack and Heap
; Tailor those values to your application needs        
分配堆棧和堆的內存量（以字節爲單位）4096
根據您的應用需求定製這些值
彙編語言僞指令EQU：等價語句
一般使用格式：
 符號名 EQU 表達式
 作用是左邊的符號名代表右邊的表達式。
注意：等價語句不會給符號名分配存儲空間，符號名不能與其它符號同名，也不能被重新定義（類似宏定義）。
;***************************************************************************************
Stack_Size   EQU     0x400
Heap_Size    EQU     0x400

;*******************************************************************************
; Allocate space for the Stack爲堆棧分配空間
;*******************************************************************************
  AREA    STACK, NOINIT, READWRITE, ALIGN=3

Stack
    SPACE   Stack_Size

;*******************************************************************************
; Allocate space for the Heap
;*******************************************************************************
  AREA    HEAP, NOINIT, READWRITE, ALIGN=3

Heap
    SPACE   Heap_Size

;********************************************************************************
;*  Declarations for the interrupt handlers that are used by the application.   應用程序使用的中斷處理程序的聲明。                                                                  
;********************************************************************************
        IMPORT  __main

        IMPORT  OSPendSV
        IMPORT  SysTickHandler
        IMPORT  WWDG_IRQHandler
        IMPORT  PVD_IRQHandler
        IMPORT  TAMPER_IRQHandler
        IMPORT  RTC_IRQHandler
        IMPORT  FLASH_IRQHandler
        IMPORT  RCC_IRQHandler
        IMPORT  EXTI0_IRQHandler
        IMPORT  EXTI1_IRQHandler
        IMPORT  EXTI2_IRQHandler
        IMPORT  EXTI3_IRQHandler
        IMPORT  EXTI4_IRQHandler
        IMPORT  DMAChannel1_IRQHandler
        IMPORT  DMAChannel2_IRQHandler
        IMPORT  DMAChannel3_IRQHandler
        IMPORT  DMAChannel4_IRQHandler
        IMPORT  DMAChannel5_IRQHandler
        IMPORT  DMAChannel6_IRQHandler
        IMPORT  DMAChannel7_IRQHandler
        IMPORT  ADC_IRQHandler
        IMPORT  USB_HP_CAN_TX_IRQHandler
        IMPORT  USB_LP_CAN_RX0_IRQHandler
        IMPORT  CAN_RX1_IRQHandler
        IMPORT  CAN_SCE_IRQHandler
        IMPORT  EXTI9_5_IRQHandler
        IMPORT  TIM1_BRK_IRQHandler
        IMPORT  TIM1_UP_IRQHandler
        IMPORT  TIM1_TRG_COM_IRQHandler
        IMPORT  TIM1_CC_IRQHandler
        IMPORT  TIM2_IRQHandler
        IMPORT  TIM3_IRQHandler
        IMPORT  TIM4_IRQHandler
        IMPORT  I2C1_EV_IRQHandler
        IMPORT  I2C1_ER_IRQHandler
        IMPORT  I2C2_EV_IRQHandler
        IMPORT  I2C2_ER_IRQHandler
        IMPORT  SPI1_IRQHandler
        IMPORT  SPI2_IRQHandler
        IMPORT  USART1_IRQHandler
        IMPORT  USART2_IRQHandler
        IMPORT  USART3_IRQHandler
        IMPORT  EXTI15_10_IRQHandler
        IMPORT  RTCAlarm_IRQHandler
        IMPORT  USBWakeUp_IRQHandler



        PRESERVE8

;**********************************************************************************
;*  Reset code section.      重置代碼段。                                                                                                     
;**********************************************************************************
        AREA    RESET, CODE, READONLY
        THUMB

;*******************************************************************************
; Fill-up the Vector Table entries with the exceptions ISR address
填寫向量表條目與例外ISR地址
;*******************************************************************************
        EXPORT  __Vectors
__Vectors                      
        DCD  Stack + Stack_Size            ; Top of Stack
        DCD  Reset_Handler
        DCD  NMIException
        DCD  HardFaultException
        DCD  MemManageException
        DCD  BusFaultException
        DCD  UsageFaultException
        DCD  0                 ; Reserved
        DCD  0                 ; Reserved
        DCD  0                 ; Reserved
        DCD  0                 ; Reserved
        DCD  SVCHandler
        DCD  DebugMonitor
        DCD  0                 ; Reserved
        DCD  OSPendSV
        DCD  SysTickHandler
        DCD  WWDG_IRQHandler
        DCD  PVD_IRQHandler
        DCD  TAMPER_IRQHandler
        DCD  RTC_IRQHandler
        DCD  FLASH_IRQHandler
        DCD  RCC_IRQHandler
        DCD  EXTI0_IRQHandler
        DCD  EXTI1_IRQHandler
        DCD  EXTI2_IRQHandler
        DCD  EXTI3_IRQHandler
        DCD  EXTI4_IRQHandler
        DCD  DMAChannel1_IRQHandler
        DCD  DMAChannel2_IRQHandler
        DCD  DMAChannel3_IRQHandler
        DCD  DMAChannel4_IRQHandler
        DCD  DMAChannel5_IRQHandler
        DCD  DMAChannel6_IRQHandler
        DCD  DMAChannel7_IRQHandler
        DCD  ADC_IRQHandler
        DCD  USB_HP_CAN_TX_IRQHandler
        DCD  USB_LP_CAN_RX0_IRQHandler
        DCD  CAN_RX1_IRQHandler
        DCD  CAN_SCE_IRQHandler
        DCD  EXTI9_5_IRQHandler
        DCD  TIM1_BRK_IRQHandler
        DCD  TIM1_UP_IRQHandler
        DCD  TIM1_TRG_COM_IRQHandler
        DCD  TIM1_CC_IRQHandler
        DCD  TIM2_IRQHandler
        DCD  TIM3_IRQHandler
        DCD  TIM4_IRQHandler
        DCD  I2C1_EV_IRQHandler
        DCD  I2C1_ER_IRQHandler
        DCD  I2C2_EV_IRQHandler
        DCD  I2C2_ER_IRQHandler
        DCD  SPI1_IRQHandler
        DCD  SPI2_IRQHandler
        DCD  USART1_IRQHandler
        DCD  USART2_IRQHandler
        DCD  USART3_IRQHandler
        DCD  EXTI15_10_IRQHandler
        DCD  RTCAlarm_IRQHandler
        DCD  USBWakeUp_IRQHandler 
        DCD  0                 ; Reserved
        DCD  0                 ; Reserved
        DCD  0                 ; Reserved
        DCD  0                 ; Reserved
        DCD  0                 ; Reserved

;******************************************************************************************
;*  Reset entry
;******************************************************************************************
        EXPORT  Reset_Handler
Reset_Handler
        IMPORT  __main
        LDR     R0, =__main
        BX      R0


;******************************************************************************************
;*  NMI exception handler. 
;*  It simply enters an infinite loop.
NMI的異常處理程序。
*它只是進入一個無限循環。
;******************************************************************************************
NMIException
        B       NMIException


;******************************************************************************************
;*  Fault interrupt handler. 
;*  It simply enters an infinite loop.
故障中斷處理程序。
*它只是進入一個無限循環。
;******************************************************************************************
HardFaultException
        B       HardFaultException

;******************************************************************************************
;*  MemManage interrupt handler. 
;*  It simply enters an infinite loop.
memmanage中斷處理程序。
*它只是進入一個無限循環。
;******************************************************************************************
MemManageException
        B       MemManageException

;******************************************************************************************
;*  Bus Fault interrupt handler. 
;*  It simply enters an infinite loop.
;******************************************************************************************
BusFaultException
        B       BusFaultException

;******************************************************************************************
;*  UsageFault interrupt handler. 
;*  It simply enters an infinite loop.
;******************************************************************************************
UsageFaultException
        B       UsageFaultException

;******************************************************************************************
;*  DebugMonitor interrupt handler. 
;*  It simply enters an infinite loop.
;******************************************************************************************
DebugMonitor
        B       DebugMonitor

;******************************************************************************************
;*  SVCall interrupt handler. 
;*  It simply enters an infinite loop.
;******************************************************************************************
SVCHandler
        B       SVCHandler



;*******************************************************************************************
;*  Make sure the end of this section is aligned.確保本節的結束是對齊的。
;*******************************************************************************************
        ALIGN


;********************************************************************************************
;*  Code section for initializing the heap and stack       初始化堆和堆棧的代碼部分                                                                                                  
;********************************************************************************************
        AREA    |.text|, CODE, READONLY


;********************************************************************************************
;*  The function expected of the C library startup 
;*  code for defining the stack and heap memory locations. 
C庫啓動的函數期望
定義堆棧和堆內存位置的代碼。
;********************************************************************************************
        IMPORT  __use_two_region_memory
        EXPORT  __user_initial_stackheap 
__user_initial_stackheap
        LDR     R0, =Heap
        LDR     R1, =(Stack + Stack_Size)
        LDR     R2, =(Heap + Heap_Size)
        LDR     R3, =Stack
        BX      LR

;******************************************************************************************
;*  Make sure the end of this section is aligned.
;******************************************************************************************
        ALIGN


;*******************************************************************************************
;*  End Of File                                                     
;*******************************************************************************************
        END