stm 32起動ファイルの詳細

23247 ワード

完成した主な仕事1.スタックポインタSP=_を設定initial_sp 2. PCポインタ=Reset_を設定Handler 3. システムクロック4を構成する.外部SRAMはプログラム変数などのデータ格納(オプション)に使用してCライブラリの_main関数を呼び出し、最終的にmain関数CortexM 4マイクロコントローラを呼び出してリセットした後、スレッドモードにあり、命令権限は特権レベル(最上位レベル)、スタック設定はメインスタック
ハードウェアオンリセット→SP=initial_sp,PC == Reset_Hander→リセット割込みサービスプログラムリセット割込みサービスプログラムを実行するとSystemInit()関数(C言語)を呼び出してシステムクロックを構成し、FSMCバス上の外部SRAMを構成し、Cライブラリにジャンプします_main関数.Cライブラリからの_main関数はユーザプログラムの初期化作業(例えば変数付与初期値など)を完了し、最後に__main関数からユーザが書いたmain()関数を呼び出してCプログラムの実行を開始する.
MDKエンジニアリングで実際に生成されたHEXファイルから,前の2文字(4バイト)はそれぞれSPとPCの値であり,前述したリセットシーケンスと一致していることがわかる.小端モード:低アドレス低バイト、高アドレス高バイト大端モード:高アドレス低バイト、低アドレス高バイト
;******************** (C) COPYRIGHT 2011 STMicroelectronics ********************            
;* File Name          : startup_stm32f10x_cl.s
;* Author             : MCD Application Team
;* Version            : V3.5.0
;* Date               : 11-March-2011
;* Description        : STM32F10x Connectivity line 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
;*                      - 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    EQU           ,    C     #define。          “  ”            ,           。 0x00000800      ,           。 

                AREA       STACK,    NOINIT,     READWRITE,  ALIGN=3                ,   STACK,   8     。 
                    ARER                       。        。 
                    ARER               。
                    (1)STACK :        ,      。
                    (2)NOINIT:               。
                    (3)READWRITE:        。
                    (4)ALIGN=32   38     (SP mod 8 = 0)。 
Stack_Mem          SPACE     Stack_Size SPACE            STACK     0x00000800           
__initial_sp    __initial_sp     SPACE     ,       。 __initial_sp       ,                   ,    C     “  ”  。               ,  C        ,     ,                      。 


;  Heap Configuration
;     Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; 

Heap_Size       EQU     0x00000200

                AREA    HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base         
Heap_Mem        SPACE   Heap_Size
__heap_limit            

                PRESERVE8                   
                THUMB            THUMB     ,CM4      THUMB - 2    


; Vector Table Mapped to Address 0 at Reset
                AREA      RESET,    DATA,    READONLY   AREA        ,  ,     RESET。 READONLY     ,         。 
                EXPORT    __Vectors 3   EXPORT     3EXPORT    __Vectors_End
                EXPORT   __Vectors_Size

;              ,               。                (IROM1    )  。      Flash   ,             0x08000000。
DCD      1   4      。   DCD        4         。                       。   (       )   ,CPU                   PC      ,             。
__Vectors       DCD     __initial_sp               ; Top of Stack
                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 and ADC2
                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         ; 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         ; I2C1 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     OTG_FS_WKUP_IRQHandler     ; USB OTG FS Wakeup through EXTI line
                DCD     0                          ; Reserved
                DCD     0                          ; Reserved
                DCD     0                          ; Reserved
                DCD     0                          ; Reserved
                DCD     0                          ; Reserved
                DCD     0                          ; Reserved
                DCD     0                          ; Reserved
                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_IRQHandler   ; DMA2 Channel4
                DCD     DMA2_Channel5_IRQHandler   ; DMA2 Channel5
                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
__Vectors_End

__Vectors_Size    EQU     __Vectors_End     - __Vectors             

                AREA      |.text|,   CODE,  READONLY           ,  ,     .text 。 READONLY      

; Reset handler
Reset_Handler      PROC    PROC、 ENDP                  ,          
                 EXPORT     Reset_Handler                 [WEAK]    WEAK                   ,                  。        ,        C                ,     C                  。 
        IMPORT   SystemInit IMPORT:                          。           ,                ,                   。     SystemInit      system_stm32f4xx.c    
        IMPORT   __main __main      C/C++                 __main      。                (  __user_initial_stackheap           ,         ),        ,      C      main  。           C         main          。      C/C++       ,      。 
                 LDR     R0, =SystemInit
                 BLX     R0
                 LDR     R0, =__main               main     _main               main  
                 BX      R0
                 ENDP

; Dummy Exception Handlers (infinite loops which can be modified)

NMI_Handler     PROC
                EXPORT  NMI_Handler                [WEAK]
                B         .    ,                 。 
                ENDP
HardFault_Handler\
                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
                EXPORT  SysTick_Handler            [WEAK]
                B       .
                ENDP

Default_Handler  PROC               

                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  CAN1_TX_IRQHandler         [WEAK]
                EXPORT  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  OTG_FS_WKUP_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_IRQHandler   [WEAK]
                EXPORT  DMA2_Channel5_IRQHandler   [WEAK]
                EXPORT  ETH_IRQHandler             [WEAK]
                EXPORT  ETH_WKUP_IRQHandler        [WEAK]
                EXPORT  CAN2_TX_IRQHandler         [WEAK]
                EXPORT  CAN2_RX0_IRQHandler        [WEAK]
                EXPORT  CAN2_RX1_IRQHandler        [WEAK]
                EXPORT  CAN2_SCE_IRQHandler        [WEAK]
                EXPORT  OTG_FS_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
CAN1_TX_IRQHandler
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
OTG_FS_WKUP_IRQHandler
TIM5_IRQHandler
SPI3_IRQHandler
UART4_IRQHandler
UART5_IRQHandler
TIM6_IRQHandler
TIM7_IRQHandler
DMA2_Channel1_IRQHandler
DMA2_Channel2_IRQHandler
DMA2_Channel3_IRQHandler
DMA2_Channel4_IRQHandler
DMA2_Channel5_IRQHandler
ETH_IRQHandler
ETH_WKUP_IRQHandler
CAN2_TX_IRQHandler
CAN2_RX0_IRQHandler
CAN2_RX1_IRQHandler
CAN2_SCE_IRQHandler
OTG_FS_IRQHandler

                B         .    。 

                ENDP                

                ALIGN

;*******************************************************************************
; User Stack and Heap initialization
;*******************************************************************************
                 IF      :DEF:__MICROLIB

                 EXPORT  __initial_sp
                 EXPORT  __heap_base
                 EXPORT  __heap_limit

                 ELSE

                 IMPORT  __use_two_region_memory
                 EXPORT  __user_initial_stackheap

__user_initial_stackheap      __main      。 

                 LDR     R0, =  Heap_Mem
                 LDR     R1, =(Stack_Mem + Stack_Size)
                 LDR     R2, = (Heap_Mem +  Heap_Size)
                 LDR     R3, = Stack_Mem
                 BX      LR

                 ALIGN

                 ENDIF

                 END

;******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE

この起動コードは10シリーズのある起動コードで、削除します