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( i4 ` b/ v8 j/ E启动文件
$ P% u; T7 b M6 D 目前，多数 mcu 厂商都提供一个启动文件。当然，编程者也可以自己编写启动文件，具体编写要求ARM的网站上都有相关文档进行说明。下面分析一下 STM32 启动文件startup_stm32f407xx.s，具体看里面的注释。6 b0 ]- s. g' [* e
1 O/ f. w" q! e V. y! `, `
;******************** (C) COPYRIGHT 2017 STMicroelectronics ********************
6 _: Q( O3 W H; D6 [; ];* File Name : startup_stm32f407xx.s
2 W9 s7 l. A( e: L/ `8 V/ a;* Author : MCD Application Team1 ~* b, `- i* Y* F) O) J! v9 U
;* Version : V2.6.1: N$ b$ f0 t& J% ^: _0 G
;* Date : 14-February-20171 n5 o+ p: J, P
;* Description : STM32F407xx devices vector table for MDK-ARM toolchain.
0 S: `, q, a9 P+ \/ W+ x;* This module peRForms:8 O' H5 M- G3 O0 @; ?# b8 a1 T7 x
;* - Set the initial SP
' S( B+ k& O1 J1 D;* - Set the initial PC == Reset_Handler
1 k2 |: E; g1 l( Y% b. b4 m;* - Set the vector table entries with the exceptions ISR address
0 h8 e0 l) [, u$ O;* - Branches to __main in the C library (which eventually. D! R7 @$ s+ g+ U- y" B
;* calls main()).8 b1 s' L+ [9 ]! p" B
;* After Reset the CortexM4 processor is in Thread mode,
# q5 v0 N" r6 {: M;* priority is Privileged, and the Stack is set to Main.5 S L# b c: F$ K: @
;* <<< Use Configuration Wizard in Context Menu >>> / l! @6 x2 U( w$ U0 F
;*******************************************************************************6 k1 `( w6 h! i4 N5 a
;
, Y9 _ B; E: K;* Redistribution and use in source and binary forms, with or without modification," x5 u c3 B1 l. o" T. z8 ]: ~
;* are permitted provided that the following conditions are met:
: g& |( U3 S5 Z# N;* 1. Redistributions of source code must retain the above copyright notice,
. G' `7 z; t7 {+ @+ b4 Y' B;* this list of conditions and the following disclaimer.
0 D7 O: D, v9 s- d# g1 W) I;* 2. Redistributions in binary form must reproduce the above copyright notice,& v) g: }9 T) H5 G$ Z* C
;* this list of conditions and the following disclaimer in the documentation7 K4 k, [8 U. n- S
;* and/or other materials provided with the distribution.
2 R! {9 [& d0 y' s0 t;* 3. Neither the name of STMicroelectronics nor the names of its contributors8 D& @; [" M7 V$ y
;* may be used to endorse or promote products derived from this software
) O1 I5 v% Q8 `1 l2 y- | ^;* without specific prior written permission.. Y4 f4 ^; w% Y
;*
' Z( q, S6 X' a2 Y+ q) T9 Q;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"% s7 r% a* U9 B; n1 e% l
;* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE, }& J: `# J$ ]. S- {8 r* A% X
;* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
/ y# G% K% K% \;* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE% w, s+ A8 p5 Y5 e& I
;* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
( _1 ~9 n- K2 h6 l& m;* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# Y8 k' V4 I% N- @0 C r;* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER: S! O# f6 x: @4 i" i6 b
;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
0 F/ Z8 }) ^, s( q0 W;* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
$ [" }" }" M9 N( E' E( D" ?! V) };* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
7 Y) a u2 ?2 v8 c6 G4 [; & W- w2 f! `1 s2 _0 O" S
;*******************************************************************************
1 j! P$ K) V n: u
$ _4 l2 C- O3 x6 H; Amount of memory (in bytes) allocated for Stack
1 d6 r- r2 b8 n, L, e- _* c9 `; Tailor this value to your application needs' c3 C$ A2 S6 f3 X; g9 j3 Y- e) J
; <h> Stack Configuration
) g2 u# b* `& \4 c( y1 Q; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
9 r/ }4 Y! F2 D F; </h>
) t% M& R$ B' o( Y% J0 L" \7 c: y% N% J! f
Stack_Size EQU 0x0800 ; 定义栈大小
+ J4 b3 ` s% J7 d0 k ; AREA 命令指示汇编器汇编一个新的代码段或数据段。 % ~2 g3 I' ?5 Z
AREA STACK, NOINIT, READWRITE, ALIGN=3 ; 代码段名称为STACK，未初始化，允许读写，8字节对齐
0 T2 \. ~' c; BStack_Mem SPACE Stack_Size ; 分配Stack_Size的栈空间，首地址赋给Stack_Mem! h# t# W! C" k: i- r
__initial_sp ; 栈顶指针，全局变量, I' H1 x; z7 v2 c/ B
: A9 L5 B8 K( m( n; B. k' l3 x% N3 V1 M
; <h> Heap Configuration+ h: t, c& F$ J* K: t0 W
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
, H: S, P6 M3 O8 k6 d; </h>
7 D+ b* _! G& z/ D3 D- v# G& k
4 M" ]. C. O! i4 v6 N; M7 A) hHeap_Size EQU 0x200
! z0 q+ E1 {. h `
1 h3 |( y7 |' o AREA HEAP, NOINIT, READWRITE, ALIGN=33 v K9 r N' E, c6 G ?/ C
__heap_base ; 堆末底部地址4 ^ Y* h, c$ M, q
Heap_Mem SPACE Heap_Size
; r" C8 a5 t9 {- Z" \__heap_limit ; 堆界限地址1 N; |, K; _* m% `8 j
5 z+ n* ]. _: q3 W+ X# m9 q0 F' X" G
PRESERVE8 ; 指定当前文件保持堆栈八字节对齐
/ ^- U* e* j7 M* y3 o THUMB ; Thumb命令模式
7 J* @+ w! U# i0 P6 w4 S% p5 z; ^( s$ a1 ]+ d! C6 _% i7 _
0 @" |# l2 t6 w6 v' d% `0 O; Vector Table Mapped to Address 0 at Reset ; 终端向量表 重启时程序从这里运行，必须将该地址映射到0x00000000
4 m1 J% V4 y P: W AREA RESET, DATA, READONLY ; 代码段名称为RESET，DATA类型，只读
- A& N! H A1 K4 s, H$ P7 I EXPORT __Vectors ; 导出中断向量表地址（供外部可以使用）
% W' n; }; [ ~2 j, a. v EXPORT __Vectors_End ; 导出中断向量表结束指针（供外部可以使用）
+ z( B& y2 b O% j5 S9 b0 R& n5 } EXPORT __Vectors_Size ; 中断向量表大小（供外部可以使用）
/ j: z! u$ `5 {" F! E8 i__Vectors DCD __initial_sp ; Top of Stack& Z; I! y8 R: s% N( v
DCD Reset_Handler ; Reset Handler
, C0 `: g: ?$ y% y2 m1 Y DCD NMI_Handler ; NMI Handler1 F1 U, S8 r$ M: A( l) v3 {
DCD HardFault_Handler ; Hard Fault Handler6 ~: |6 z# h7 A5 L
DCD MemManage_Handler ; MPU Fault Handler
. w( E7 T! G( v, m3 M- c" k DCD BusFault_Handler ; Bus Fault Handler
2 b; i3 U* L: o E; y% ? DCD UsageFault_Handler ; Usage Fault Handler( T* v7 s. D2 g# _0 m* `/ W" W7 {9 l
DCD 0 ; Reserved
9 T2 R! ^) C3 J$ o1 |; b3 y( B' _ DCD 0 ; Reserved( t" h# Y# k+ H8 N7 X0 V a1 I* n
DCD 0 ; Reserved
& k5 e1 F4 S6 }; _7 Z- @ DCD 0 ; Reserved9 a( ]* T7 I* `
DCD SVC_Handler ; SVCall Handler( x" R" n; m/ P2 K9 o3 s
DCD DebugMon_Handler ; Debug Monitor Handler( t3 U3 A7 x7 G1 j+ g$ e9 Z0 P, }, z& Z
DCD 0 ; Reserved9 H" } J+ i1 R- ^9 f7 M2 f
DCD PendSV_Handler ; PendSV Handler; V3 F0 W7 t# H# {
DCD SysTick_Handler ; SysTick Handler
. W" X( K! j4 q7 n. N- g
7 l1 o; W1 k" g1 n; C* j* _0 B, _ ; External Interrupts
& I* e8 T9 x B O2 F z1 y DCD WWDG_IRQHandler ; Window WatchDog ' u9 r7 p) }: U) J
DCD PVD_IRQHandler ; PVD through EXTI Line detection
- p o6 r6 r e$ U7 x DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line * q$ ^% z: P0 I$ K: f& \
DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line
1 x# r% C: a2 }6 X% { DCD FLASH_IRQHandler ; FLASH
0 G. p& h3 x2 U3 r9 p DCD RCC_IRQHandler ; RCC + w! I& V$ T+ n }7 ^! n
DCD EXTI0_IRQHandler ; EXTI Line0 7 Y d6 {* C" ^/ Q! x( ?
DCD EXTI1_IRQHandler ; EXTI Line1 1 O# L: }4 P# `
DCD EXTI2_IRQHandler ; EXTI Line2 : J! C4 e' ]& `& O; D; L. n
DCD EXTI3_IRQHandler ; EXTI Line3
" W& K: t9 x7 L3 D' B DCD EXTI4_IRQHandler ; EXTI Line4
3 p. Q! L5 n" F# [ X) r. b+ L2 r o! Y DCD DMA1_Stream0_IRQHandler ; DMA1 Stream 0 + O t5 C, G4 T; L7 E0 w, n
DCD DMA1_Stream1_IRQHandler ; DMA1 Stream 1
8 U. w" Y; a; A DCD DMA1_Stream2_IRQHandler ; DMA1 Stream 2 V% y7 y' n9 _( D- {' l
DCD DMA1_Stream3_IRQHandler ; DMA1 Stream 3
" Z& R' W- }$ N& ^- S/ H1 l0 F4 I DCD DMA1_Stream4_IRQHandler ; DMA1 Stream 4
! S: h) M; T" _4 y) c# Q DCD DMA1_Stream5_IRQHandler ; DMA1 Stream 5
2 z- r+ u! j8 L1 Q# o: l0 s, f: J DCD DMA1_Stream6_IRQHandler ; DMA1 Stream 6 / G: \5 K! J6 d- E) p
DCD ADC_IRQHandler ; ADC1, ADC2 and ADC3s 9 f; L2 s* p" `
DCD CAN1_TX_IRQHandler ; CAN1 TX 8 W8 T+ I, E/ s7 c
DCD CAN1_RX0_IRQHandler ; CAN1 RX0
2 G. J( n) d2 v, G3 E DCD CAN1_RX1_IRQHandler ; CAN1 RX1 ) J% l8 w9 o8 Q. j" M" k l) \- c7 U
DCD CAN1_SCE_IRQHandler ; CAN1 SCE - @1 l5 k; g |, u: M
DCD EXTI9_5_IRQHandler ; External Line[9:5]s
* @' f- n5 D' P/ F DCD TIM1_BRK_TIM9_IRQHandler ; TIM1 Break and TIM9
1 X7 w7 U4 [4 g2 ~6 z' ]* ^ DCD TIM1_UP_TIM10_IRQHandler ; TIM1 Update and TIM10
9 N. i$ ]4 A, g6 G6 G2 u* a' Z DCD TIM1_TRG_COM_TIM11_IRQHandler ; TIM1 Trigger and Commutation and TIM11' f+ {4 B: S1 E c; w3 T( y$ P& R6 P
DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
% u- x; S+ F5 q5 g# ^ DCD TIM2_IRQHandler ; TIM2
5 x; H+ j" J, j& O; s l1 u. L7 V5 z DCD TIM3_IRQHandler ; TIM3
$ D* j( w/ G. a8 `$ y7 J DCD TIM4_IRQHandler ; TIM4
" G" ?9 J9 x( R, c, B8 w DCD I2C1_EV_IRQHandler ; I2C1 Event 4 s" x6 G- W, y' D5 C4 Z" t
DCD I2C1_ER_IRQHandler ; I2C1 Error
8 v8 r$ ]& r& m5 P* L, G; \4 g DCD I2C2_EV_IRQHandler ; I2C2 Event ( \+ I L6 e7 m2 S) k8 R7 S$ X& G
DCD I2C2_ER_IRQHandler ; I2C2 Error 1 G' @8 u# P8 G5 j9 [, X
DCD SPI1_IRQHandler ; SPI1
: P- e, k6 @0 W. O3 L DCD SPI2_IRQHandler ; SPI2
7 T0 \+ k6 i+ K/ R DCD USART1_IRQHandler ; USART1
# R( G4 G" s" s DCD USART2_IRQHandler ; USART2
3 d) A- [$ a' k* X DCD USART3_IRQHandler ; USART3 5 o# f6 g) I, y# N% j5 ?
DCD EXTI15_10_IRQHandler ; External Line[15:10]s % P7 U% M, \( z
DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line ' G( K3 _5 R( @! [2 d" C
DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI line . P5 J# \. j. m
DCD TIM8_BRK_TIM12_IRQHandler ; TIM8 Break and TIM12
7 {- e6 ~: ^4 {. E" U) O2 V DCD TIM8_UP_TIM13_IRQHandler ; TIM8 Update and TIM13
9 g* q8 B& D4 [$ k1 a* h DCD TIM8_TRG_COM_TIM14_IRQHandler ; TIM8 Trigger and Commutation and TIM14# C- [ p+ D5 \2 d5 P* \
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare " `: E$ |& s* g; `$ w" W( ^ ]
DCD DMA1_Stream7_IRQHandler ; DMA1 Stream7
) |4 {; n' r, T0 s DCD FMC_IRQHandler ; FMC 6 k- w2 J* `9 y4 z( Y$ u
DCD SDIO_IRQHandler ; SDIO
1 x. M4 ]$ D/ y4 {* E2 K N- g DCD TIM5_IRQHandler ; TIM5
/ T% |" }6 J! w5 u: x$ K DCD SPI3_IRQHandler ; SPI3
4 @5 k. G8 F3 ?2 H0 p% ^! H8 r0 g DCD UART4_IRQHandler ; UART4 / A6 U0 N" c9 O
DCD UART5_IRQHandler ; UART5
5 `1 A8 _! |5 @- Q/ D) L- b8 \ DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors
/ O6 L. T2 I% F2 Q9 |9 |+ M! z' O DCD TIM7_IRQHandler ; TIM7 2 i1 t; v0 p% Z
DCD DMA2_Stream0_IRQHandler ; DMA2 Stream 0
/ y! w* c+ ~; f4 a DCD DMA2_Stream1_IRQHandler ; DMA2 Stream 1
0 c- C; a) F3 Z2 K9 L DCD DMA2_Stream2_IRQHandler ; DMA2 Stream 2 4 t; `' y: k) a2 I a2 L& o
DCD DMA2_Stream3_IRQHandler ; DMA2 Stream 3
( U, I% O9 a$ t, x- r/ j DCD DMA2_Stream4_IRQHandler ; DMA2 Stream 4 _3 i. s, L2 u/ @0 V$ g
DCD ETH_IRQHandler ; Ethernet 3 J' k7 y8 Z3 {, v
DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line , p' y9 }6 U3 w+ v
DCD CAN2_TX_IRQHandler ; CAN2 TX
. f# g9 C1 l o DCD CAN2_RX0_IRQHandler ; CAN2 RX0 / a# c! R1 y K8 _9 _
DCD CAN2_RX1_IRQHandler ; CAN2 RX1
) i: @8 V. O4 z z DCD CAN2_SCE_IRQHandler ; CAN2 SCE % E" R- |8 t! ]/ k
DCD OTG_FS_IRQHandler ; USB OTG FS 1 L1 v ~! O/ m- x6 ]
DCD DMA2_Stream5_IRQHandler ; DMA2 Stream 5
- U! H$ ]/ C: }& \ DCD DMA2_Stream6_IRQHandler ; DMA2 Stream 6
/ ? w* c6 P( C- N DCD DMA2_Stream7_IRQHandler ; DMA2 Stream 7 , F9 g& y; H6 U' t5 q
DCD USART6_IRQHandler ; USART6
' Z4 N1 S0 K6 S, y) ?( g' a DCD I2C3_EV_IRQHandler ; I2C3 event
) M8 Q& }+ K( G DCD I2C3_ER_IRQHandler ; I2C3 error
# K$ o9 d5 H$ x! m' c3 ] DCD OTG_HS_EP1_OUT_IRQHandler ; USB OTG HS End Point 1 Out 2 T5 u5 t: E+ s: [7 m& W4 q! ~" X
DCD OTG_HS_EP1_IN_IRQHandler ; USB OTG HS End Point 1 In
: R. k, d w" P9 m- J( r. w% o DCD OTG_HS_WKUP_IRQHandler ; USB OTG HS Wakeup through EXTI
' @% D- w1 f5 p" {& z DCD OTG_HS_IRQHandler ; USB OTG HS / j& D$ Q& Y7 B* O4 D' q
DCD DCMI_IRQHandler ; DCMI
6 }4 a r; K% }. y' _4 I( T, ` DCD 0 ; Reserved
6 H* p. T; ^5 a, n; q# ` DCD HASH_RNG_IRQHandler ; Hash and Rng
/ @) K, y0 w& T1 o DCD FPU_IRQHandler ; FPU
% y% z& c. G" J. b" E 7 ?: m2 u5 |) z; e( u
% n1 O5 ~ k# J6 A
__Vectors_End. S }1 T7 o( V; }" c3 L+ _
! [# N9 @8 B+ L* y3 y5 K' G+ X__Vectors_Size EQU __Vectors_End - __Vectors ; 计算中断向量表的大小4 T% D# r5 a+ r! ~1 ?
9 n4 |% a6 a+ r
AREA |.text|, CODE, READONLY ; 代码段，|.text| 用于表示由 C 编译程序产生的代码段，或用于以某种方式与 C 库关联的代码段。 CODE类型，只读
% [* ?- Q! D/ Z. k! h7 R) d# W+ j( Q1 ~; 以下开始定义各种中断，第一个便是复位中断，顺序与上面的终端向量表一致！( K* u$ K) W# }: z7 c
; Reset handler k& I( i6 [8 ]' \
Reset_Handler PROC ; 代码开始，与ENDP成对出现
6 ?4 u7 H( b2 }, v/ R7 k0 Y EXPORT Reset_Handler [WEAK] ; 复位中断，[WEAK]修饰代表其他文件有函数定义优先调用
6 ]0 Y0 J2 f* z( l IMPORT SystemInit ; 导入外部函数SystemInit
9 G. L% C, D* I IMPORT __main ; 导入外部函数__main
4 d. }& i9 i5 y9 ]: S, A! G: F0 C# ?. g+ P, Q9 e
LDR R0, =SystemInit/ _& e2 N9 c) |3 q
BLX R0 ; 无返回调用SystemInit
! U2 H* t' e. W/ y$ J9 j LDR R0, =__main
9 ]0 l( @+ m+ ]7 `) d BX R0 ; 有返回调用__main6 \4 x3 B1 c/ k4 o. [3 j: z. |
ENDP ; 代码结束，与PROC成对出现/ `' X7 C5 J2 J# U3 z
6 `9 P: j5 @4 B" }5 n" }
; Dummy Exception Handlers (infinite loops which can be modified)
$ e% t0 @" k- z M2 ?& n
0 Z! T& |6 o) i' f4 I* I, XNMI_Handler PROC
8 d& {* t# k: K7 O EXPORT NMI_Handler [WEAK]
2 i% i) b- P8 K1 h& N" Q( k B .3 b& o5 {, c, d, H4 i
ENDP; h3 r. S! `4 S7 K* A$ e& L7 h
HardFault_Handler\8 u; N7 [4 F5 \1 s
PROC
4 a4 \6 Z, _9 x6 _$ _, V. l* p EXPORT HardFault_Handler [WEAK]% G" k) v. N7 D5 p5 J: m
B .
2 O. s# @: K+ A. r6 P ENDP8 J; @1 M% N. ~% ^
MemManage_Handler\
9 b: u: t! o% i% h. t8 a PROC
_4 a2 l, n/ l { EXPORT MemManage_Handler [WEAK]
/ j4 o; X# j( Z. ^% q K/ Y% d B .0 M' @/ P) o9 y
ENDP# B0 y, R4 t3 k
BusFault_Handler\9 G7 N- E- S8 v! o! W+ D! _
PROC
5 G& w8 C0 W( j& m; r/ V, G EXPORT BusFault_Handler [WEAK]
& ]4 z9 T% W4 e B .
! y3 R! S$ T, ^ ENDP h4 A5 G6 T; M! g& o5 k
UsageFault_Handler\
# t( j1 _: l# V PROC2 p- h$ d% y% \5 \
EXPORT UsageFault_Handler [WEAK]4 f" O7 @5 r; `3 Y
B .- {4 ^: ]/ g7 Q! N
ENDP
* Q0 u0 e) E5 Q2 g3 U( PSVC_Handler PROC$ r1 j9 g, R% C& i" U
EXPORT SVC_Handler [WEAK]
; `9 ~/ Z; g9 R x/ n: B A) U% g B .* n5 |. z: c4 E4 c4 e$ i7 z. M
ENDP A+ Y, y, Y# ~3 ~5 R; w5 I
DebugMon_Handler\/ q: G: n, r5 k4 v$ p( q
PROC
# L2 r" U! x( i1 x( T. W3 v EXPORT DebugMon_Handler [WEAK] x3 |, W3 p, b# ~
B .. e& C9 j5 C# C6 ~0 s( |" L
ENDP
+ R9 q2 f& p$ X# u! t% h+ c# o; ?3 UPendSV_Handler PROC, J0 H% P! @( y: ^- `
EXPORT PendSV_Handler [WEAK]
* S. @, ` T, m! P7 i% K; P B .% B# V$ ` {% g& H
ENDP) L: o# R' c& i/ [
SysTick_Handler PROC
' N0 Q7 @3 {1 O. [3 m h EXPORT SysTick_Handler [WEAK]
: v$ `: `% z9 W9 ~ B .2 r: e( u7 {( ?1 U: J$ C
ENDP3 `3 |! `, T% {$ M
; 终端向量表的External Interrupts部分。 默认的外部中断，通常有外部实现。先导出各种符号以供外部使用，然后时默认的定义4 X. G- j% E9 E# s- x7 k
Default_Handler PROC5 w+ ]5 U1 u; e
9 M" Z6 G4 C3 P, O( k9 m EXPORT WWDG_IRQHandler [WEAK] % r4 F; d: s5 Y6 M$ _" X
EXPORT PVD_IRQHandler [WEAK] 1 {1 \! q: z! [3 E. O1 e
EXPORT TAMP_STAMP_IRQHandler [WEAK]
& b* w' B, W3 q' H0 s" C( R* f) J EXPORT RTC_WKUP_IRQHandler [WEAK]
8 X: v9 I3 h( W* G EXPORT FLASH_IRQHandler [WEAK] 9 Z. C/ G# G2 b O. j: M' t' S! `
EXPORT RCC_IRQHandler [WEAK]
5 q! T# ^; G8 a; J8 V x5 f- e EXPORT EXTI0_IRQHandler [WEAK]
6 C' A, k. v: s3 N- O9 h EXPORT EXTI1_IRQHandler [WEAK] % x* C3 L$ ^2 |. c4 V+ _; t7 o( j T
EXPORT EXTI2_IRQHandler [WEAK] # ?" H, |& d5 y& x; m
EXPORT EXTI3_IRQHandler [WEAK]
" B7 O2 @- e' n' A+ |& B% x EXPORT EXTI4_IRQHandler [WEAK]
* k* f# V1 P8 q0 A8 m! W% Q6 c! f EXPORT DMA1_Stream0_IRQHandler [WEAK] - C; ^2 N) I0 ]0 h' ?2 G [( z
EXPORT DMA1_Stream1_IRQHandler [WEAK] 4 A2 W' Z6 ~! ^
EXPORT DMA1_Stream2_IRQHandler [WEAK]
+ {: r( Q$ b$ e. Q$ @( s EXPORT DMA1_Stream3_IRQHandler [WEAK]
. a; z7 y5 d5 z% Z$ [ Q' O EXPORT DMA1_Stream4_IRQHandler [WEAK]
+ w# g' e# K9 g; _' V. x EXPORT DMA1_Stream5_IRQHandler [WEAK]
6 W. u1 ?' [0 n' l% P1 V" o EXPORT DMA1_Stream6_IRQHandler [WEAK] 7 c+ H" ~8 z: Y2 z8 ~: k9 e$ a
EXPORT ADC_IRQHandler [WEAK] 9 Y1 Z3 u% H3 q+ ?
EXPORT CAN1_TX_IRQHandler [WEAK]
- H! X3 X- Z* A EXPORT CAN1_RX0_IRQHandler [WEAK] 4 r8 z: Q4 ~! g% Z
EXPORT CAN1_RX1_IRQHandler [WEAK]
) w& j8 c& W8 b& ^ EXPORT CAN1_SCE_IRQHandler [WEAK]
. x0 o6 R- `! m! q+ [! s+ E EXPORT EXTI9_5_IRQHandler [WEAK]
$ l- V4 e# x' Y+ n7 D EXPORT TIM1_BRK_TIM9_IRQHandler [WEAK] ! b: n( L- }, o8 x
EXPORT TIM1_UP_TIM10_IRQHandler [WEAK]
! G8 V5 m8 N$ @4 Q. S* M: h8 R EXPORT TIM1_TRG_COM_TIM11_IRQHandler [WEAK] 0 G/ A3 h1 I, _, E: R/ D
EXPORT TIM1_CC_IRQHandler [WEAK]
0 p" g8 P2 z! P; h* T( e, c: x+ o EXPORT TIM2_IRQHandler [WEAK]
6 }1 p% N, u3 y# @7 s1 r) H. d Z EXPORT TIM3_IRQHandler [WEAK] 0 H/ i z2 K/ k1 w8 j
EXPORT TIM4_IRQHandler [WEAK] 0 r3 L, N2 `$ F& i
EXPORT I2C1_EV_IRQHandler [WEAK]
: w& z, i, a, G# { EXPORT I2C1_ER_IRQHandler [WEAK]
; L& t3 R; `# m% o; ~. ?; D" Z7 k EXPORT I2C2_EV_IRQHandler [WEAK] * `7 O. I. ~- ?% i6 D# x' t
EXPORT I2C2_ER_IRQHandler [WEAK]
# u4 U" H% I( z# M& l9 S0 Q EXPORT SPI1_IRQHandler [WEAK]
$ E9 ~6 P+ }; P% k3 s' s+ y EXPORT SPI2_IRQHandler [WEAK] # @- F0 k6 _8 [ O3 k) W1 \
EXPORT USART1_IRQHandler [WEAK]
$ T- {7 k0 l& `0 j0 x EXPORT USART2_IRQHandler [WEAK] 8 d% N8 ]6 [5 D U
EXPORT USART3_IRQHandler [WEAK]
* o0 Z( u5 E* J5 |$ a6 {% `9 o EXPORT EXTI15_10_IRQHandler [WEAK] 1 y3 A2 `' Z* e
EXPORT RTC_Alarm_IRQHandler [WEAK]
/ u9 V1 O! N1 q) j; b EXPORT OTG_FS_WKUP_IRQHandler [WEAK] 4 o" P0 w: I8 m% m- L
EXPORT TIM8_BRK_TIM12_IRQHandler [WEAK] ; ~9 z8 Z3 c& u9 ]! u
EXPORT TIM8_UP_TIM13_IRQHandler [WEAK]
3 x' y" I% r* r; Y4 C! `! n( i1 h$ _ EXPORT TIM8_TRG_COM_TIM14_IRQHandler [WEAK]
$ o9 \0 Y, E0 _& M/ W EXPORT TIM8_CC_IRQHandler [WEAK] $ q) G/ D9 z" x }7 a5 y+ S9 P
EXPORT DMA1_Stream7_IRQHandler [WEAK] : |) e+ q: O0 E" b, R
EXPORT FMC_IRQHandler [WEAK]
1 H* I" a6 K" }- B* n9 @- }; G7 r- C EXPORT SDIO_IRQHandler [WEAK] / i$ r3 F: f/ M2 g6 B! }
EXPORT TIM5_IRQHandler [WEAK]
! b1 F3 l+ R/ O2 Y& a EXPORT SPI3_IRQHandler [WEAK]
/ C" b* n8 D/ ^) G5 ?) @ EXPORT UART4_IRQHandler [WEAK] - S! R+ d" b1 S ^' \* s, b. o
EXPORT UART5_IRQHandler [WEAK] ) b) J; q ^) k5 p5 f, }4 j9 ?4 U
EXPORT TIM6_DAC_IRQHandler [WEAK] 1 d' q9 @9 z6 p
EXPORT TIM7_IRQHandler [WEAK]
. u, y% J* N1 @, g0 c# M EXPORT DMA2_Stream0_IRQHandler [WEAK]
! @, J5 M- C# g EXPORT DMA2_Stream1_IRQHandler [WEAK]
2 S6 C& N' S1 `7 C- p) m EXPORT DMA2_Stream2_IRQHandler [WEAK]
( q/ f+ z) z7 H) P G& [ EXPORT DMA2_Stream3_IRQHandler [WEAK]
3 ^ K. \( m9 y0 k8 U EXPORT DMA2_Stream4_IRQHandler [WEAK] 0 ]- K0 s* V( {2 O- Q
EXPORT ETH_IRQHandler [WEAK] 9 o& \4 Y) t1 {9 ~: {
EXPORT ETH_WKUP_IRQHandler [WEAK]
4 W. A! u- W7 D EXPORT CAN2_TX_IRQHandler [WEAK]
4 }/ T" f$ e4 E Q EXPORT CAN2_RX0_IRQHandler [WEAK] ! m$ g# `6 N/ h. t Q1 j- r" ]. l
EXPORT CAN2_RX1_IRQHandler [WEAK] " c& x8 t- F9 q7 }- `
EXPORT CAN2_SCE_IRQHandler [WEAK]
) X6 P) s0 y% J& [+ A EXPORT OTG_FS_IRQHandler [WEAK]
2 s: G9 [3 i. l% K4 [ EXPORT DMA2_Stream5_IRQHandler [WEAK]
! m2 f4 V9 p* ^" m EXPORT DMA2_Stream6_IRQHandler [WEAK] 6 h2 D1 o! X( g1 W- k( O: F* D
EXPORT DMA2_Stream7_IRQHandler [WEAK]
1 }1 v# u2 `7 \- @! S EXPORT USART6_IRQHandler [WEAK]
) ]2 N; h: u( d& ?$ p EXPORT I2C3_EV_IRQHandler [WEAK] . q. ~4 L! d3 v: u
EXPORT I2C3_ER_IRQHandler [WEAK]
6 S1 W5 e% W6 h$ g EXPORT OTG_HS_EP1_OUT_IRQHandler [WEAK] / N2 H& P! y. n
EXPORT OTG_HS_EP1_IN_IRQHandler [WEAK] ( @7 |3 z4 W' f( J/ A& Q3 ?
EXPORT OTG_HS_WKUP_IRQHandler [WEAK]
8 u: R# l" J& ~# T: j EXPORT OTG_HS_IRQHandler [WEAK]
" |' `! T: t& h$ V8 } EXPORT DCMI_IRQHandler [WEAK]
9 j5 q) u& X- O# B5 c1 [+ R. { h EXPORT HASH_RNG_IRQHandler [WEAK]
+ T8 T1 f' N9 _ EXPORT FPU_IRQHandler [WEAK]
$ \( a+ n, c/ j9 N# e9 E, ^, b ) \/ B2 A. Z+ @7 a0 n: B* Q
WWDG_IRQHandler & o1 W6 w( }5 `: G1 p
PVD_IRQHandler
! l1 }" O& s' f+ y$ {5 o* ? }7 aTAMP_STAMP_IRQHandler
% \1 [1 p9 v0 ?: M- hRTC_WKUP_IRQHandler # X% r- @8 \# \
FLASH_IRQHandler
8 ~+ A0 [! l9 bRCC_IRQHandler ( R% i( j$ x5 M1 L( Z
EXTI0_IRQHandler q4 u. ?/ G2 ?& E" F% E
EXTI1_IRQHandler * f' t- q5 b: u
EXTI2_IRQHandler
; q4 h2 s4 D9 y! ~, _1 a! TEXTI3_IRQHandler
& ^3 A( H6 m. `8 ^7 kEXTI4_IRQHandler $ F" b+ k% t9 r4 H4 x
DMA1_Stream0_IRQHandler ~ Q1 z9 ~/ c5 u5 ~
DMA1_Stream1_IRQHandler ) m% p7 p( Z6 h: ^
DMA1_Stream2_IRQHandler 9 N6 K! N# x& U
DMA1_Stream3_IRQHandler " g* M7 ]( W" \7 [8 E
DMA1_Stream4_IRQHandler
; k( s. l2 L8 z9 Z! xDMA1_Stream5_IRQHandler
& p' I0 {; y0 m4 Y. A; IDMA1_Stream6_IRQHandler / _# d" h P# I- d3 [+ Y
ADC_IRQHandler 0 \* _# o( m* V& N0 I2 ~
CAN1_TX_IRQHandler ; e5 d5 ~1 q" `
CAN1_RX0_IRQHandler
6 k* ? y* L @3 L( \CAN1_RX1_IRQHandler 9 {; a/ l7 U8 ?7 k/ c3 ^
CAN1_SCE_IRQHandler
8 `6 J+ y: _# ] U$ g5 M- uEXTI9_5_IRQHandler
! [* \( }; |+ c# o8 ^: q6 {TIM1_BRK_TIM9_IRQHandler
' Z3 g8 b+ Z" ?8 H& UTIM1_UP_TIM10_IRQHandler
. k# H' i) P e0 HTIM1_TRG_COM_TIM11_IRQHandler ( K, T! C7 n* f: P/ j3 ~% \
TIM1_CC_IRQHandler
; R$ W6 X' G- rTIM2_IRQHandler ) ?1 H+ y+ I$ {; E4 L
TIM3_IRQHandler
! e. ?! M0 A" X6 q, {TIM4_IRQHandler ) P$ d( O- w: Q0 {- N z" K: w
I2C1_EV_IRQHandler
4 S# ^3 i/ p6 K: }I2C1_ER_IRQHandler
0 K% A9 S( s: h9 n4 J0 iI2C2_EV_IRQHandler : Q- c$ U% ?+ E7 E! [4 a% }
I2C2_ER_IRQHandler
% H! z) f/ ~" F$ z( V% a# @5 @SPI1_IRQHandler
/ N6 |! Y) X# R. [1 R; X( w6 bSPI2_IRQHandler
1 K6 h t5 d9 Y$ P4 y2 L6 QUSART1_IRQHandler 6 a" W4 T: B! Y# ^" @+ f4 }8 p
USART2_IRQHandler
2 O: e# W) C$ F) A5 LUSART3_IRQHandler
. x; @; y- \" k0 a9 B$ p+ c, @EXTI15_10_IRQHandler
5 V. K- m" t F& |$ |" l% |5 E3 WRTC_Alarm_IRQHandler - `0 `% f. e5 t# G2 q D, n3 K
OTG_FS_WKUP_IRQHandler 4 p T% Y8 m" c: W9 t" A2 l
TIM8_BRK_TIM12_IRQHandler 6 Z$ }3 g% P7 c: h: ]$ ]
TIM8_UP_TIM13_IRQHandler ! ^7 r. t9 N: F+ {9 l! q5 }
TIM8_TRG_COM_TIM14_IRQHandler
V/ J5 b/ @2 oTIM8_CC_IRQHandler " R. G3 C n+ X3 e3 l7 L8 c- g
DMA1_Stream7_IRQHandler
8 ?0 M) m% ?$ C( Z2 K" _FMC_IRQHandler 5 f4 [* I" B7 Y* d+ `
SDIO_IRQHandler ( D9 m N4 V- U
TIM5_IRQHandler , i. N: Z: [3 r5 a1 R
SPI3_IRQHandler , g6 R6 Z3 ^- x+ h
UART4_IRQHandler . w* i* B3 X# c# G: V( r
UART5_IRQHandler
2 F, o3 A2 f; O7 YTIM6_DAC_IRQHandler 6 H d1 X! \6 A
TIM7_IRQHandler 4 w C1 H) i" Q9 I2 ]+ ^- e4 y1 D
DMA2_Stream0_IRQHandler w H& z% l; I E0 e
DMA2_Stream1_IRQHandler
& e- J2 H6 O0 gDMA2_Stream2_IRQHandler
3 U! Y% \/ ]5 b9 s4 q% iDMA2_Stream3_IRQHandler , m& E% n; Y, |, \% z5 E
DMA2_Stream4_IRQHandler 5 c: J- i! J9 {# ~! V8 {/ x
ETH_IRQHandler
8 W. p" j1 o; S4 m, vETH_WKUP_IRQHandler
9 C5 Y" H: J& b% O6 f* ]; q5 c8 YCAN2_TX_IRQHandler 1 j' i4 p" v6 @* K6 W5 q; G
CAN2_RX0_IRQHandler 0 I. n, m- R. }5 X" C% ^- T
CAN2_RX1_IRQHandler 0 _1 H# A& ? I& L. |* E' W
CAN2_SCE_IRQHandler & j, ~3 Y9 [; D* u. I) @" ]% T
OTG_FS_IRQHandler 9 M0 D1 u: E) u! q) O
DMA2_Stream5_IRQHandler , p& T* Z" d2 C6 ?3 ~7 W- t
DMA2_Stream6_IRQHandler
0 \% d! e4 y7 J' `/ p; @. J# E# ?( E( _DMA2_Stream7_IRQHandler ! W! }* q7 S8 ?% ?9 S. \5 u( e6 ~. u' I1 f
USART6_IRQHandler
! V' S7 _: @7 _/ n) K% z3 QI2C3_EV_IRQHandler 6 g* i: F9 d8 e* ~9 T
I2C3_ER_IRQHandler * D& O( F3 ]6 e0 H- V
OTG_HS_EP1_OUT_IRQHandler 5 v0 @: |, g0 R+ M, T
OTG_HS_EP1_IN_IRQHandler ' q8 C4 _1 q- I5 t; v* E% F
OTG_HS_WKUP_IRQHandler , G# C$ q2 g' S) n# Q0 V2 z) U' Q
OTG_HS_IRQHandler
; \# v. W" x1 p# K2 x+ [DCMI_IRQHandler
/ B8 P: h5 Q5 G6 p: X' v( z$ IHASH_RNG_IRQHandler G ]* D+ [9 X/ T6 a
FPU_IRQHandler 1 b4 R) H) K) A9 W6 M" ~
9 n4 K. v H4 e% A2 v( H( A/ K6 ~( \ B .
% L F& S$ S6 |! @% q8 x6 @0 t. s6 b4 a
ENDP& t0 a# k( v* y* }) f- k! y5 b
( T* ^( i/ Q8 z1 H5 q" \7 A ALIGN9 W& |/ h+ n, J+ d1 W9 Z
0 V9 _& k( D) q/ c% K;*******************************************************************************3 W! t# ?' f: t" Q" J
; User Stack and Heap initialization 编译器预处理命令，主要是用来初始化用户堆栈
* C+ ?) f3 ^& b$ D& R9 q. p;*******************************************************************************4 \1 p+ D$ ^. C$ E& ~+ H
IF ：DEF:__MICROLIB ; "DEF"的用法为 ：DEF:X 就是说X定义了则为真，否则为假。若定义了__MICROLIB，则将__initial_sp，__heap_base，__heap_limit亦即栈顶地址，堆始末地址赋予全局属性，使外部程序可以使用。4 I8 v+ R. Y3 ?) W* j
' _" t4 V" v+ H$ S1 F
EXPORT __initial_sp/ A1 q) y0 d6 g' o( O( `2 ]6 n% u
EXPORT __heap_base
) w5 E$ d7 r( z& D* z7 | EXPORT __heap_limit- ?/ j4 e% ^; c) K" x6 m# K# q
1 ~1 O9 X* X! h$ G9 T; { [5 L* Y; T ELSE ; 如果没定义__MICROLIB,则使用默认的C运行时库
# b2 q. @( V! Y- v P
7 Q! E9 I# u# Z+ d+ ^% w2 F IMPORT __use_two_region_memory ; 用于指定存储器模式为双段模式，即一部分储存区用于栈空间，其他的存储区用于堆空间，堆区空间可以为0，但是，这样就不能调用malloc()内存分配函数；堆区空间也可以由存储器分配，也可以从执行环境中继承。在汇编代码中，通过 IMPORT __use_two_region_memory 表明使用双段模式；在C语言中，通过 #pragma import(__use_two_region_memory)语句表明使用双段模式。( Q& \4 q4 W. R0 d& b+ B
EXPORT __user_initial_stackheap
/ w. b% R! R: W # }0 h' k$ j0 e" D9 ^) ~
__user_initial_stackheap ; 此处是初始化两区的堆栈空间，堆是从由低到高的增长，栈是由高向低生长的，两个是互相独立的数据段，并不能交叉使用。7 p/ {$ d/ k2 M' A7 y8 L Q/ k
9 a4 p: E& X& a9 N/ a) p/ T6 @
LDR R0, = Heap_Mem ; 保存堆始地址
! B3 T$ n" r/ C; x5 |# \2 a0 G8 ? LDR R1, =(Stack_Mem + Stack_Size) ; 保存栈的大小
& }% J. e: x" J5 E ] LDR R2, = (Heap_Mem + Heap_Size) ; 保存堆的大小4 I0 i. [7 W. f1 F2 l" Z
LDR R3, = Stack_Mem ; 保存栈顶指针3 ~0 Z% z, M. [! q
BX LR: X+ G; M6 z" Y
* O# Y/ P; ]" [$ v$ z0 \ ALIGN ; 填充字节使地址对齐* W5 F9 @. C/ V: o4 C9 U
8 M0 V" l3 w8 v- M. ? ENDIF
. B. u' X8 v: a* f: b! P) x. i) H( f6 @3 O) Y' F6 Q& K! y `
END ; END 命令指示汇编器，已到达一个源文件的末尾。! _+ a0 F" c5 k# h( q
, G$ w; | C: M/ _1 m# j; J;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE***** |
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发表于 2020-12-1 17:13
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