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启动文件5 I' N" L* ]3 o9 O$ u
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。
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;******************** (C) COPYRIGHT 2017 STMicroelectronics ********************
* v3 ?2 S4 y) L* v- h7 b;* File Name : startup_stm32f407xx.s. R' L9 J3 ]2 w% O2 }
;* Author : MCD Application Team% E6 P; x# I. ~
;* Version : V2.6.1& L% h: Q) a; I1 s* q; o' w! c- M
;* Date : 14-February-2017
" u0 y" o, z* i5 v;* Description : STM32F407xx devices vector table for MDK-ARM toolchain. * [) f) h" o; p* e* \* U
;* This module peRForms:
# z9 a1 _/ F! U, U$ {* [: };* - Set the initial SP
9 S$ t8 [8 W' ~;* - Set the initial PC == Reset_Handler
+ P( k6 c7 \! F* ?% _;* - Set the vector table entries with the exceptions ISR address
6 S' s+ ^+ Y3 e: V/ z;* - Branches to __main in the C library (which eventually J4 J- K- p6 h' g$ u
;* calls main()).1 K! R$ |& @. ~: \2 z+ P( D
;* After Reset the CortexM4 processor is in Thread mode,
' |- z* Y& `: y# [" B;* priority is Privileged, and the Stack is set to Main.
" E6 n' I" t+ G5 q, Q. J;* <<< Use Configuration Wizard in Context Menu >>>
$ I( N4 j7 b9 w' N) n- b;*******************************************************************************
* h) r5 j0 j( O# A3 h; 9 [% l& v k$ w% H" M3 y
;* Redistribution and use in source and binary forms, with or without modification,: { _. K" y( B9 ^# Y% `
;* are permitted provided that the following conditions are met:
; ^- |$ s% _2 {% R, |, z" I5 ?' f% G;* 1. Redistributions of source code must retain the above copyright notice,
5 L% R" @4 n/ K8 v4 |9 i/ _6 k;* this list of conditions and the following disclaimer.
' q( D* L1 ?+ o" g2 v8 n;* 2. Redistributions in binary form must reproduce the above copyright notice,
U- S; }+ w0 v% E, R, G1 d) a;* this list of conditions and the following disclaimer in the documentation
& O% f/ i; I4 R, A) T* `;* and/or other materials provided with the distribution.6 w K( E1 ~$ ]* a8 l" C' F: Z
;* 3. Neither the name of STMicroelectronics nor the names of its contributors" u/ v0 f7 [7 E. ?' i: `- R! Z
;* may be used to endorse or promote products derived from this software
0 ^( g8 k" C3 k: E;* without specific prior written permission.
4 v! s) H) W3 b8 b8 F;*
" N( v- a. e8 x9 U: ~;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
. J% u# t* B' ^( y;* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE8 g( o9 o# t1 V( K4 n
;* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; y" V" T, k* _& N;* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE9 N0 x9 r1 |) v9 A
;* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL1 k* c5 m' e4 P7 H( s3 K
;* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR$ @% @- _1 w+ w% ]4 R
;* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER2 k; m2 \/ [% l0 J
;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
) t/ |# C1 h: z# d1 _' o& R! x;* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
5 g2 F, P1 _0 z9 G;* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.) {& D3 k$ N8 X( S
;
7 L) b$ [* h$ m$ S8 C;*******************************************************************************
* K( U5 J. s) E6 B4 s4 F! _
% f( ^6 G0 i) K0 W& D; Amount of memory (in bytes) allocated for Stack g$ `' S1 p' ]- t& W
; Tailor this value to your application needs+ p8 o: b S% J) O' z( Z: Q
; <h> Stack Configuration
j& u$ y' d. `$ G5 Q8 c/ \6 E. ~$ T; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>: O7 D% i' Y h4 a3 H
; </h>* Y5 J# X) I% V I n) e! i
" @1 `: S8 X/ m; }) mStack_Size EQU 0x0800 ; 定义栈大小
" H$ ~; y5 u( c ; AREA 命令指示汇编器汇编一个新的代码段或数据段。
, J% \5 J4 W8 Q" `% A 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( C/ i2 A A9 s/ Z. j' O
Stack_Mem SPACE Stack_Size ; 分配Stack_Size的栈空间，首地址赋给Stack_Mem6 F. V6 Z. e' b* B/ f- O
__initial_sp ; 栈顶指针，全局变量
+ C5 N- X. H: n2 }, z" w+ C( \
/ w( o8 V/ d9 M+ P$ D) A M3 Z
v- {9 }1 t; V( t) U* |; <h> Heap Configuration
2 U7 u. u$ x7 E3 K# P* g3 ^; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
" X) T* K+ ?, j, b1 R- I; </h>: d# u9 j1 V' v" s) K% O7 a- ^* t
) s. W9 o$ C' u1 p4 o/ P
Heap_Size EQU 0x200$ I# Z( [. S6 E( T
4 s% b; X( x$ G$ ^7 ^
AREA HEAP, NOINIT, READWRITE, ALIGN=39 Z+ C0 r+ J0 v& {1 J
__heap_base ; 堆末底部地址2 T- F: N1 m& Y) f1 R( ]
Heap_Mem SPACE Heap_Size P0 Y7 i+ v1 N( s
__heap_limit ; 堆界限地址" a2 B: G$ ]+ \$ F7 c
* x5 g1 f) {( j7 y( I6 B: Y PRESERVE8 ; 指定当前文件保持堆栈八字节对齐
d" K) B; J; k9 v; ?7 r5 S THUMB ; Thumb命令模式
9 B3 u# g' c4 E( i/ k6 r
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+ i) k/ `: B' ^ I* V: M2 p; 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; O; {/ o. ^+ L5 y/ y" [
AREA RESET, DATA, READONLY ; 代码段名称为RESET，DATA类型，只读
( n5 ]% O( q t% Y2 m EXPORT __Vectors ; 导出中断向量表地址（供外部可以使用）+ z. o6 e. }/ g( O* ]% `' M( I: [
EXPORT __Vectors_End ; 导出中断向量表结束指针（供外部可以使用）
/ y$ v8 i' T$ L; C* ]# S" y4 e! c EXPORT __Vectors_Size ; 中断向量表大小（供外部可以使用）
* A3 k2 @9 f S9 w__Vectors DCD __initial_sp ; Top of Stack
- ]. ~3 L2 N) ~$ U, l+ s DCD Reset_Handler ; Reset Handler
* l. q# T3 r. U1 p DCD NMI_Handler ; NMI Handler1 o+ r x; ^5 w7 @4 z
DCD HardFault_Handler ; Hard Fault Handler% A7 t# [+ ?/ v x/ {! T
DCD MemManage_Handler ; MPU Fault Handler
) [# r( q# c0 J A DCD BusFault_Handler ; Bus Fault Handler
* \/ F5 G' b9 ]9 M0 ] x: i- O/ \3 { DCD UsageFault_Handler ; Usage Fault Handler
: e- o! E7 ?3 z2 @* B DCD 0 ; Reserved
3 i/ G( v% m2 n0 v/ z% e DCD 0 ; Reserved: w% N Q. e a I& {+ D7 `+ Q
DCD 0 ; Reserved4 K. z! h! d% O$ M* w
DCD 0 ; Reserved
& l) ]0 H+ x4 V$ u7 j DCD SVC_Handler ; SVCall Handler
& P, L9 l4 w0 i L& w7 y) _4 L DCD DebugMon_Handler ; Debug Monitor Handler' c3 R/ x8 _( V4 t
DCD 0 ; Reserved
1 e; K* v# _6 J& e DCD PendSV_Handler ; PendSV Handler
2 y Z4 A: t0 M9 G) M" F- Q DCD SysTick_Handler ; SysTick Handler+ D- l+ C N8 S8 P1 ?. l" \
4 Q% M% Q+ w; A& U. K ; External Interrupts! C& X2 |& K7 }$ x$ m
DCD WWDG_IRQHandler ; Window WatchDog 4 a) D& y& T1 N" E) a8 U
DCD PVD_IRQHandler ; PVD through EXTI Line detection & c9 H9 O+ k' S0 `8 r
DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line : l( v. a2 k8 x# W
DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line
# T# n( _+ i# } DCD FLASH_IRQHandler ; FLASH ) @6 G0 g7 \1 d8 k3 l5 C; V: {
DCD RCC_IRQHandler ; RCC
# q; Z" c6 o) d o6 r: M1 Z DCD EXTI0_IRQHandler ; EXTI Line0
: ~# e) c) Z/ c* X DCD EXTI1_IRQHandler ; EXTI Line1
/ b1 J- F& Q- z$ g& c5 _" g: W DCD EXTI2_IRQHandler ; EXTI Line2
* G4 J+ U* x8 j! y. g DCD EXTI3_IRQHandler ; EXTI Line3 & d2 `5 L+ s: a( i4 i5 Z, i
DCD EXTI4_IRQHandler ; EXTI Line4
! u a. M* y0 H, Z) k; S$ } DCD DMA1_Stream0_IRQHandler ; DMA1 Stream 0 * G7 Q9 A+ j$ @" r8 z' F- e# ^
DCD DMA1_Stream1_IRQHandler ; DMA1 Stream 1
' `. |7 \5 j' y DCD DMA1_Stream2_IRQHandler ; DMA1 Stream 2 8 G1 z+ G# T9 y. W
DCD DMA1_Stream3_IRQHandler ; DMA1 Stream 3
0 k5 V) m0 o/ i DCD DMA1_Stream4_IRQHandler ; DMA1 Stream 4 " ?5 }1 u5 U7 x3 U1 S. v! E
DCD DMA1_Stream5_IRQHandler ; DMA1 Stream 5
: d' W* [# x& c3 w/ |- F DCD DMA1_Stream6_IRQHandler ; DMA1 Stream 6 ; J% Y. ~, q. _1 _' ~9 n# P1 }
DCD ADC_IRQHandler ; ADC1, ADC2 and ADC3s
: O0 N% G; C: E: {! h- V DCD CAN1_TX_IRQHandler ; CAN1 TX & u9 @" n' L8 \* a4 w3 [
DCD CAN1_RX0_IRQHandler ; CAN1 RX0
1 v$ {8 ]* _9 v* @7 h9 a9 @9 I; E DCD CAN1_RX1_IRQHandler ; CAN1 RX1
; `. }; A' m+ A4 r( X9 D1 M" x+ r DCD CAN1_SCE_IRQHandler ; CAN1 SCE
3 y n7 a- w9 T% O DCD EXTI9_5_IRQHandler ; External Line[9:5]s
" N" ~; P$ B$ I7 [4 K9 R DCD TIM1_BRK_TIM9_IRQHandler ; TIM1 Break and TIM9
# e5 d0 }+ `9 D3 k) ]3 Q3 A DCD TIM1_UP_TIM10_IRQHandler ; TIM1 Update and TIM10 . t" K9 w- e- W* f1 r( v" x
DCD TIM1_TRG_COM_TIM11_IRQHandler ; TIM1 Trigger and Commutation and TIM11
, ~& B. i& ?; t9 \/ W; t# T9 M3 [; g6 { DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
) Y* b. x0 v. X l$ M$ h& M DCD TIM2_IRQHandler ; TIM2
" L+ l% U% \2 H& R; ? DCD TIM3_IRQHandler ; TIM3
?( ~! |) S* W% z DCD TIM4_IRQHandler ; TIM4 ?$ c, M0 I- X9 J) q
DCD I2C1_EV_IRQHandler ; I2C1 Event
, J6 C3 F& n0 c$ G% [- B DCD I2C1_ER_IRQHandler ; I2C1 Error 4 U# k/ y- `5 t1 l
DCD I2C2_EV_IRQHandler ; I2C2 Event
5 r2 a# n U4 b* ^ H DCD I2C2_ER_IRQHandler ; I2C2 Error
/ ^2 }0 K$ r5 f DCD SPI1_IRQHandler ; SPI1
8 y6 p4 e2 w6 l9 S T K2 z DCD SPI2_IRQHandler ; SPI2
( N, i2 Y; U [ L DCD USART1_IRQHandler ; USART1 M: @4 T i2 k, |; T, d4 T
DCD USART2_IRQHandler ; USART2
! ]) t3 s# y1 f# ]$ } DCD USART3_IRQHandler ; USART3
1 u. N2 B, W# r DCD EXTI15_10_IRQHandler ; External Line[15:10]s + F) ]. I& E9 \) v- B( e. F
DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line
; \1 ~4 y1 L4 b0 N. V3 z DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI line 5 i2 \6 T4 f6 g
DCD TIM8_BRK_TIM12_IRQHandler ; TIM8 Break and TIM12
: V/ X9 ^6 ~" g DCD TIM8_UP_TIM13_IRQHandler ; TIM8 Update and TIM13
0 z1 J9 d& ?! U. m( P$ H. m DCD TIM8_TRG_COM_TIM14_IRQHandler ; TIM8 Trigger and Commutation and TIM146 a0 d: d/ u0 k! J
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare 1 z! [& f4 {8 e. m3 W+ M
DCD DMA1_Stream7_IRQHandler ; DMA1 Stream7 1 r* W, O+ H; F/ s, L/ a5 P5 f
DCD FMC_IRQHandler ; FMC
4 Y+ L: S. ~, }' k+ r* j DCD SDIO_IRQHandler ; SDIO ; J( D5 U' w) ]6 S4 J) @
DCD TIM5_IRQHandler ; TIM5 4 I6 \1 B ?: M t! p# {& z
DCD SPI3_IRQHandler ; SPI3
$ \# J+ E2 o$ {/ l) S6 M DCD UART4_IRQHandler ; UART4 : Y* F, C* a' K# B/ a& _; ~
DCD UART5_IRQHandler ; UART5
Q3 T+ w2 Y4 q# B+ H; J5 ]( { DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors 2 s( }5 h1 `# V& r5 K ^# {: Y
DCD TIM7_IRQHandler ; TIM7 * Z7 U" s$ ~' ~
DCD DMA2_Stream0_IRQHandler ; DMA2 Stream 0 / H6 R# d3 r. N, d
DCD DMA2_Stream1_IRQHandler ; DMA2 Stream 1 . U& j- [# v; v' Q, @, y9 M/ h+ ~
DCD DMA2_Stream2_IRQHandler ; DMA2 Stream 2 % }4 |$ q6 x! }+ G
DCD DMA2_Stream3_IRQHandler ; DMA2 Stream 3 ; r! I, A* m7 V
DCD DMA2_Stream4_IRQHandler ; DMA2 Stream 4
' K" z& L1 c( R9 J/ }( e DCD ETH_IRQHandler ; Ethernet
$ _" ?+ u+ \2 ?0 d/ T3 j. A( w DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line 6 T( V* \+ i8 s- P6 |# }, p
DCD CAN2_TX_IRQHandler ; CAN2 TX
2 V2 H& N% @2 U DCD CAN2_RX0_IRQHandler ; CAN2 RX0 + z' |7 L) N8 W' A4 U
DCD CAN2_RX1_IRQHandler ; CAN2 RX1 9 ?# b. R- A* l- A) N
DCD CAN2_SCE_IRQHandler ; CAN2 SCE . D9 i5 \4 S$ T! k6 @
DCD OTG_FS_IRQHandler ; USB OTG FS 8 C j) ^ R7 X, `/ ]
DCD DMA2_Stream5_IRQHandler ; DMA2 Stream 5 ! R% M$ f9 l3 P0 L8 d1 R! q6 W
DCD DMA2_Stream6_IRQHandler ; DMA2 Stream 6 3 K: C4 m1 `/ ]
DCD DMA2_Stream7_IRQHandler ; DMA2 Stream 7
4 ]/ W' a3 A J7 L, t" l+ d! ^( K/ L DCD USART6_IRQHandler ; USART6
K! i5 ~" @# x DCD I2C3_EV_IRQHandler ; I2C3 event 2 i. m! M/ S) M0 G) B2 s
DCD I2C3_ER_IRQHandler ; I2C3 error
' y2 M0 Q4 \5 H- ]# I DCD OTG_HS_EP1_OUT_IRQHandler ; USB OTG HS End Point 1 Out
9 \9 C6 z) u+ K6 U* v2 t \ DCD OTG_HS_EP1_IN_IRQHandler ; USB OTG HS End Point 1 In
2 a0 p$ u+ A0 {, \& {% d. h DCD OTG_HS_WKUP_IRQHandler ; USB OTG HS Wakeup through EXTI
1 U9 k6 a: i/ w( M+ _ j% R8 U" | DCD OTG_HS_IRQHandler ; USB OTG HS " I: _, X$ h6 {+ {% X# {
DCD DCMI_IRQHandler ; DCMI % b4 z% G) n. i8 |3 `( o
DCD 0 ; Reserved , [) w& h" O- ]- q s. z
DCD HASH_RNG_IRQHandler ; Hash and Rng
/ w* {9 Q+ Q$ X& n: T& I DCD FPU_IRQHandler ; FPU
* Y* A" T& \( d- a 7 a' H, t; Y! Y5 c& \
7 f+ T* P, X6 a% W. N
__Vectors_End- c7 y- q" t6 S2 c$ Y
) G# P5 `% G1 r( t9 j7 r8 ?__Vectors_Size EQU __Vectors_End - __Vectors ; 计算中断向量表的大小
0 k0 H: N% w$ R" \% V$ e8 }, M8 D5 i8 y, T% 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
$ F: z4 t) B2 T D* D! V( N4 P; 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！0 G/ Q" Z" R5 ~3 E$ v
; Reset handler
7 S5 T" a: I7 vReset_Handler PROC ; 代码开始，与ENDP成对出现
0 E. R( ]4 p" p6 A* R 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
9 e3 g5 j, Q+ C: i IMPORT SystemInit ; 导入外部函数SystemInit
9 Y! m6 D& ?3 \3 m2 `& o* H/ V IMPORT __main ; 导入外部函数__main1 ?: a N2 w$ V( Z: q5 w
/ n# |- [: E8 }; z: F' \, n! S
LDR R0, =SystemInit; K) H( l% ]2 m; y5 f# e
BLX R0 ; 无返回调用SystemInit4 x6 ~! Q! i: t1 L& \4 A
LDR R0, =__main
: Z7 U0 I- B) S9 M BX R0 ; 有返回调用__main
* W4 s; L/ A. O- D; a ENDP ; 代码结束，与PROC成对出现
6 s6 ]" i0 D& T. O# }
5 A# c6 l0 ~% ?* N3 o6 U; Dummy Exception Handlers (infinite loops which can be modified)
7 j e) Q7 [( k. u9 E! w# x6 q& Z' g1 I: u4 [
NMI_Handler PROC9 Y% M+ y: s5 {% T. T3 H& m
EXPORT NMI_Handler [WEAK]
! Z7 E. u* d% ~ {; M+ P8 P B .) C% L: d8 ?0 v$ I u
ENDP* I8 f0 p% ~* `. B# T) U
HardFault_Handler\, U, j' l- J/ }, s& \" v6 ?- ?
PROC/ z8 C" y1 K1 X
EXPORT HardFault_Handler [WEAK]4 R% p% B+ Y7 V/ v6 {4 @4 Z
B .
. ~' y1 m8 c o$ j ENDP
- m b6 R' |. `% D* DMemManage_Handler\
- h) _* l: N$ D' s% u' I; H! w/ n$ J PROC) I* S9 a" {- U8 U
EXPORT MemManage_Handler [WEAK]
0 q3 `( J7 |6 _& b$ r" n" Q" o% o B .* ~) T3 v. _! P! O( G/ _+ D
ENDP! Y$ |4 G# j+ ?( h$ F- n
BusFault_Handler\9 N u0 V% u4 d; r* @2 ~
PROC2 Q6 _$ Z, O, B+ w) X1 h1 p2 {
EXPORT BusFault_Handler [WEAK]
+ P' ]0 z) ?( m$ t6 O$ o B .1 w% M1 Y4 ?0 q) u, `( }
ENDP* H, H( I7 [. i4 E5 i
UsageFault_Handler\
: |6 l( R1 ~2 } v( G" H* P! X9 \ PROC5 z, F0 Y2 j2 v0 \! \
EXPORT UsageFault_Handler [WEAK]# D0 E0 M( v: R2 m) X
B .
% C+ ~1 Y9 F+ S* ]6 o ENDP$ z9 y( F! @ y: w; a U/ F
SVC_Handler PROC
+ i% S# h3 j+ x EXPORT SVC_Handler [WEAK], c) W# t" M8 s" I, p
B .7 }7 ^, f; n/ k) _% d; _5 l
ENDP6 C4 N/ Q! c0 W" R
DebugMon_Handler\ Q, d8 J$ y6 R1 m
PROC9 U3 e ^, C( y( T& M/ F5 F
EXPORT DebugMon_Handler [WEAK]
# }: \( l1 |( z. O9 L6 B; D B .
5 I/ C2 G+ F, b3 R% \4 k/ j ]8 T ENDP E7 |( d' z5 J) ^+ S
PendSV_Handler PROC, b8 Z/ H L) P
EXPORT PendSV_Handler [WEAK]
+ ]0 ~4 z* b0 I% C1 U: | B .
1 i5 m0 a! Q9 E5 m ENDP7 k1 L4 X0 ]; M2 G! O8 t
SysTick_Handler PROC+ z, K" Z* @1 Z
EXPORT SysTick_Handler [WEAK]' t) h; \% `2 T& J
B .
3 x5 g# @- V0 W( u: q. f- Q( x ENDP5 ^- ^! M9 t0 f
; 终端向量表的External Interrupts部分。 默认的外部中断，通常有外部实现。先导出各种符号以供外部使用，然后时默认的定义
: ^7 k: ]8 L9 s b5 yDefault_Handler PROC
a( v" T6 L7 v2 ~2 l( N, B: O/ M4 T( q
EXPORT WWDG_IRQHandler [WEAK] * Y( r+ t* K7 f' q3 G% X
EXPORT PVD_IRQHandler [WEAK]
, w& g( U) k- F" ]6 X B7 [! ~0 T EXPORT TAMP_STAMP_IRQHandler [WEAK]
! V& d6 \% z y EXPORT RTC_WKUP_IRQHandler [WEAK]
/ {* a& J6 S/ G% O6 g- O EXPORT FLASH_IRQHandler [WEAK]
9 R% F) W( L% x" X, t EXPORT RCC_IRQHandler [WEAK] 7 w4 S# r( b5 l1 N- B: `4 h4 l& p
EXPORT EXTI0_IRQHandler [WEAK] 8 O7 b' \" \) O; j3 f( C3 L5 S3 H2 }
EXPORT EXTI1_IRQHandler [WEAK] 7 p4 d( a# T" z
EXPORT EXTI2_IRQHandler [WEAK]
5 Y) d |9 t1 k) V) [/ D4 i3 X0 L EXPORT EXTI3_IRQHandler [WEAK] : V7 W/ L1 I2 T: G5 p
EXPORT EXTI4_IRQHandler [WEAK] * K I0 |7 o3 }. T: H; d) D1 |
EXPORT DMA1_Stream0_IRQHandler [WEAK] : n, }; g6 G, ^% {5 ^
EXPORT DMA1_Stream1_IRQHandler [WEAK] & J' f% m% [" P5 _0 H7 s
EXPORT DMA1_Stream2_IRQHandler [WEAK] ! C5 r+ i' o+ J3 K6 t- m' S( H
EXPORT DMA1_Stream3_IRQHandler [WEAK]
; d8 `2 {/ i7 m& X# W: F( ? T EXPORT DMA1_Stream4_IRQHandler [WEAK]
& m7 S) M9 Q* m8 S6 j1 _- c EXPORT DMA1_Stream5_IRQHandler [WEAK]
( n2 Z$ I6 A" s* C* ` EXPORT DMA1_Stream6_IRQHandler [WEAK]
6 `. I3 U# q# n* d) S EXPORT ADC_IRQHandler [WEAK]
0 }- o/ ^. m4 B7 d' j EXPORT CAN1_TX_IRQHandler [WEAK] % v8 K6 l: G, F) C$ O6 ]
EXPORT CAN1_RX0_IRQHandler [WEAK] ) i# ]( N9 e. m
EXPORT CAN1_RX1_IRQHandler [WEAK]
. m$ V! u+ {0 h& w7 C1 g" m( {8 U EXPORT CAN1_SCE_IRQHandler [WEAK]
# n W3 C& d+ a4 a y" k4 v H* W! q l EXPORT EXTI9_5_IRQHandler [WEAK] ) _& e- Y" ~/ v Y @
EXPORT TIM1_BRK_TIM9_IRQHandler [WEAK]
+ A" Q8 X& f7 ^" @3 S EXPORT TIM1_UP_TIM10_IRQHandler [WEAK] - i3 B# ~. i" K* Y& @
EXPORT TIM1_TRG_COM_TIM11_IRQHandler [WEAK] . g1 i5 d8 e. l* W
EXPORT TIM1_CC_IRQHandler [WEAK] 4 ^( }0 x, `! v- a) y4 y; P6 G
EXPORT TIM2_IRQHandler [WEAK] $ X" ?+ { ~4 h+ S; O+ [
EXPORT TIM3_IRQHandler [WEAK]
6 x; }3 ?$ h4 S& Q3 B/ n EXPORT TIM4_IRQHandler [WEAK] 1 A1 J I$ h& k
EXPORT I2C1_EV_IRQHandler [WEAK]
" \: e$ r- `/ j2 c8 l( Y EXPORT I2C1_ER_IRQHandler [WEAK] . J! y V& \# I
EXPORT I2C2_EV_IRQHandler [WEAK] * M X5 M. }* S, y+ k
EXPORT I2C2_ER_IRQHandler [WEAK] 9 [, H) E, Q. H* \4 G4 o
EXPORT SPI1_IRQHandler [WEAK] ) g. X& B5 o/ t9 A
EXPORT SPI2_IRQHandler [WEAK] 0 N% {# m; w: k6 n. F! C
EXPORT USART1_IRQHandler [WEAK]
' R/ R/ P0 E% \4 ]/ U6 f EXPORT USART2_IRQHandler [WEAK]
d9 \3 E) K5 i5 w8 H) I+ q5 I EXPORT USART3_IRQHandler [WEAK]
8 K$ X0 C- } { EXPORT EXTI15_10_IRQHandler [WEAK]
' s1 q Q# V5 ]. T6 W8 y' t EXPORT RTC_Alarm_IRQHandler [WEAK] 5 Z; J. s. M$ Y# u9 S4 f& o+ v# I
EXPORT OTG_FS_WKUP_IRQHandler [WEAK] ' u1 Z5 Z* ], B: \3 D% T
EXPORT TIM8_BRK_TIM12_IRQHandler [WEAK]
" ~( n% l$ i! i, t" l/ H EXPORT TIM8_UP_TIM13_IRQHandler [WEAK] ; @3 E: `& k- Q( j
EXPORT TIM8_TRG_COM_TIM14_IRQHandler [WEAK]
# [& ^* s9 P/ z1 q. W/ i3 z/ | EXPORT TIM8_CC_IRQHandler [WEAK] # R/ A( s. [- \. ^/ I1 ?2 v% O) }
EXPORT DMA1_Stream7_IRQHandler [WEAK] 7 l" G3 H, M$ ?" N2 ~+ b6 G. k
EXPORT FMC_IRQHandler [WEAK]
* V) i3 {2 x; ^6 }( X/ e! }6 f. o EXPORT SDIO_IRQHandler [WEAK] 0 j2 Q2 }! t. i
EXPORT TIM5_IRQHandler [WEAK] 6 Z- C- E h& P" c& B
EXPORT SPI3_IRQHandler [WEAK] $ b! g: G) p( L* J2 `+ S
EXPORT UART4_IRQHandler [WEAK] 3 J) `' _+ H" v" w4 o- q
EXPORT UART5_IRQHandler [WEAK] . _5 {% w: J/ w7 [1 b
EXPORT TIM6_DAC_IRQHandler [WEAK]
& v. u$ D) j0 o3 \3 h$ U EXPORT TIM7_IRQHandler [WEAK]
% G2 h4 ]4 ]4 y EXPORT DMA2_Stream0_IRQHandler [WEAK] $ C5 ]3 I+ O* ]8 ?6 B
EXPORT DMA2_Stream1_IRQHandler [WEAK] * }: R8 q* `* b4 a. V/ j. V2 z G
EXPORT DMA2_Stream2_IRQHandler [WEAK]
6 ^4 _+ _& F# z: n EXPORT DMA2_Stream3_IRQHandler [WEAK]
5 `5 v+ W; Y+ b8 e/ J EXPORT DMA2_Stream4_IRQHandler [WEAK] 1 Z# K" M3 S7 d8 E* c' w
EXPORT ETH_IRQHandler [WEAK]
; E- |/ q' \. b! l Q EXPORT ETH_WKUP_IRQHandler [WEAK] 7 |( ~) J0 l2 Q0 o( {2 B
EXPORT CAN2_TX_IRQHandler [WEAK] 5 ]1 }) {1 R D! C$ s, o) k; M1 g
EXPORT CAN2_RX0_IRQHandler [WEAK]
' j7 f% A3 k( D o {, l/ L7 G6 } EXPORT CAN2_RX1_IRQHandler [WEAK]
: |$ t' w( ^) O: a EXPORT CAN2_SCE_IRQHandler [WEAK]
$ I2 r, v! r. p( m% J, p% ` EXPORT OTG_FS_IRQHandler [WEAK]
5 U8 q D$ ? J6 w! S5 N EXPORT DMA2_Stream5_IRQHandler [WEAK]
# d/ R5 F# ~7 A$ e EXPORT DMA2_Stream6_IRQHandler [WEAK] \9 h7 a* x4 g7 o# d; p
EXPORT DMA2_Stream7_IRQHandler [WEAK]
( f: o0 T: Q5 n0 g EXPORT USART6_IRQHandler [WEAK]
% e8 O5 y% O; c5 j8 C" n EXPORT I2C3_EV_IRQHandler [WEAK]
) @9 ~( k# c0 ^/ E) n* I EXPORT I2C3_ER_IRQHandler [WEAK]
3 s8 F# t$ D' u2 M/ X1 J EXPORT OTG_HS_EP1_OUT_IRQHandler [WEAK] ' p1 q+ }# V# h3 Q- m
EXPORT OTG_HS_EP1_IN_IRQHandler [WEAK]
; U1 h. t9 J$ x3 Y/ |% ] EXPORT OTG_HS_WKUP_IRQHandler [WEAK] " f* E6 ]1 C* }# ?7 C: a
EXPORT OTG_HS_IRQHandler [WEAK]
n# h* _% y5 o* X0 e EXPORT DCMI_IRQHandler [WEAK] 3 T. g% c+ ~* H8 K9 z L. C2 K
EXPORT HASH_RNG_IRQHandler [WEAK]7 _$ I, K0 D( n/ X f9 h9 H
EXPORT FPU_IRQHandler [WEAK]3 C9 r6 Q5 x; U" w
5 s. ^3 M/ Y+ Q4 S0 k* S
WWDG_IRQHandler - ~$ {/ ?% |+ [$ b" Y. w/ D3 |
PVD_IRQHandler
* j, t8 D5 [* B8 D9 m$ kTAMP_STAMP_IRQHandler ) j( P9 R4 h+ P9 g6 ]
RTC_WKUP_IRQHandler
" t9 ^7 u9 y- a* [8 dFLASH_IRQHandler / f6 r: w! b T7 X
RCC_IRQHandler * y7 t$ ?: _4 s t6 A. `" l& k
EXTI0_IRQHandler
4 S+ u% x8 @6 `* A5 PEXTI1_IRQHandler 2 I; }7 A5 R1 R3 {
EXTI2_IRQHandler 3 T8 [8 f/ x4 Q& v! a5 p/ M+ r
EXTI3_IRQHandler
0 L. I$ x: q$ q/ e2 F: h5 s0 aEXTI4_IRQHandler
* ?& I0 [# h4 t2 I, JDMA1_Stream0_IRQHandler
( ^3 k8 I b9 ]5 D: BDMA1_Stream1_IRQHandler $ a& _6 x/ j* |/ @2 q% |. Y
DMA1_Stream2_IRQHandler . f; ^% ^; q' D! ^
DMA1_Stream3_IRQHandler 2 | a+ T& C* \: L5 J
DMA1_Stream4_IRQHandler
- u3 x$ e/ p4 g5 q. G: xDMA1_Stream5_IRQHandler 4 h; d h% I6 `
DMA1_Stream6_IRQHandler : \% x& |! S" |& v2 E" {7 R. a
ADC_IRQHandler 5 r+ h6 |4 [4 A, ]
CAN1_TX_IRQHandler
3 K$ W D1 K- CCAN1_RX0_IRQHandler
! f( N% u; Y4 ^" Z4 WCAN1_RX1_IRQHandler + v& _/ T E" ^6 l: F9 e3 e" j
CAN1_SCE_IRQHandler 7 }' Q- O5 I. g, K. g
EXTI9_5_IRQHandler
( e2 c/ X b) a) F7 BTIM1_BRK_TIM9_IRQHandler
' T" n2 y8 @! \. b; i: BTIM1_UP_TIM10_IRQHandler
% _% l) q( X3 A" ]) x% L7 \TIM1_TRG_COM_TIM11_IRQHandler ' z0 ^1 S8 j* n1 I' E$ M* `2 F9 S
TIM1_CC_IRQHandler % T/ U: |* @+ \# N2 S" X; V
TIM2_IRQHandler
2 U% K: o0 r( h; _! hTIM3_IRQHandler ) j( M" V1 U/ i) i0 ?
TIM4_IRQHandler & o& `' d' ]6 L3 O/ _
I2C1_EV_IRQHandler , G. Q8 ^# j7 d
I2C1_ER_IRQHandler
% A# p' H+ a3 |# H* YI2C2_EV_IRQHandler & N0 n. C" r4 S5 T; m- R% M$ j
I2C2_ER_IRQHandler $ a/ J4 ~; n9 ~! X% l0 w4 Y V$ F$ z0 k
SPI1_IRQHandler 0 X2 j6 s; S! O" o" K& k
SPI2_IRQHandler
1 k. l) l% l! y: d6 aUSART1_IRQHandler
9 A. G* i- s# k: U/ W @" qUSART2_IRQHandler ) Z9 c% R/ Q. X6 w6 v8 Y' P/ Y
USART3_IRQHandler
. I3 m" V* U* t4 cEXTI15_10_IRQHandler
. s* h: t5 J+ \! H# @ ^; i, z/ SRTC_Alarm_IRQHandler
+ |0 g$ T6 |; r& q9 q! U* COTG_FS_WKUP_IRQHandler
% ?( A( p4 z: t. F4 i' n2 p1 NTIM8_BRK_TIM12_IRQHandler 8 o/ Z0 ~# p8 ~) t' x4 `6 V7 p
TIM8_UP_TIM13_IRQHandler # r5 A. E% o+ u5 B5 g2 B: H
TIM8_TRG_COM_TIM14_IRQHandler
' R7 L8 N2 h+ Q# CTIM8_CC_IRQHandler
: v+ Y2 i# n2 S) `# S+ b5 t4 WDMA1_Stream7_IRQHandler 7 Y9 s+ S$ M7 M2 ^! I
FMC_IRQHandler : r/ W b/ u' v9 o& r! B! w
SDIO_IRQHandler
/ ~1 i6 U! E N! ]TIM5_IRQHandler ; v" o R0 c" u v4 c% u
SPI3_IRQHandler
% M% R9 n; |/ r9 ~$ n' g7 G dUART4_IRQHandler
1 z5 Q' F2 E) M' rUART5_IRQHandler 7 C, i. T, _; W" Q
TIM6_DAC_IRQHandler
! U# o, M! o. c7 P' s1 j: X6 gTIM7_IRQHandler ( K# T3 S# _+ v) q
DMA2_Stream0_IRQHandler 1 t7 |0 ^7 k2 ^: y6 ]% j2 |2 o
DMA2_Stream1_IRQHandler % N! @7 P7 X& U
DMA2_Stream2_IRQHandler ; K1 C* x9 ~/ {! `
DMA2_Stream3_IRQHandler & X. d/ N. Y3 n
DMA2_Stream4_IRQHandler
G; B6 t5 U* e* M7 m4 ?$ i! wETH_IRQHandler ) b. X% l5 S9 V# X9 V) A
ETH_WKUP_IRQHandler ) l/ a! K: ]# n( P( O5 d
CAN2_TX_IRQHandler
8 L( ~5 t7 e9 L& \+ v! ICAN2_RX0_IRQHandler
: b) m% z7 w2 y* \CAN2_RX1_IRQHandler * W& Y: K7 R! c. v ]$ z! p8 }
CAN2_SCE_IRQHandler : l6 L* d# B8 p- Y! n e7 U
OTG_FS_IRQHandler
: x6 c1 r, y2 q; o$ PDMA2_Stream5_IRQHandler 6 g _# M! Y' M; h- c1 I" }
DMA2_Stream6_IRQHandler # D: a) a% ]* ?. }8 C
DMA2_Stream7_IRQHandler 6 K2 @7 v) C5 w# I. D* m
USART6_IRQHandler 4 G5 p2 ?; d W7 P* B$ W3 \& G
I2C3_EV_IRQHandler
3 g1 _# R" m* p" e0 DI2C3_ER_IRQHandler
# e' C( v+ |. t2 ^" H- W& w) ^9 l% WOTG_HS_EP1_OUT_IRQHandler
9 ? l0 g/ u5 ^! h* E$ POTG_HS_EP1_IN_IRQHandler
0 w$ T8 ~3 P* A* E/ i" KOTG_HS_WKUP_IRQHandler
0 ~2 J. p3 C! q( iOTG_HS_IRQHandler 6 a! p, s" ?$ r
DCMI_IRQHandler + z/ B5 q* k* m) E' G: q- c4 K2 g
HASH_RNG_IRQHandler/ G- [' z/ }0 l! s
FPU_IRQHandler ! v" f/ C) l9 S/ C A7 E
& W- A6 h/ x. x9 ^0 E
B .. c* r( N& T v8 F
9 T( s9 \+ [) M7 h" I8 W ENDP
a% U$ K8 ?5 f: W; Q5 N$ Y
6 D/ b% m6 C2 t8 d ALIGN
, E7 F: y0 k+ r, c( }+ v9 v+ `3 H! A7 d5 _3 T
;*******************************************************************************
- i8 }) u# S+ a! y- 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
' K5 e9 {: D: q;*******************************************************************************! |( F& ^* p. i% o, d
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。% O# f9 H3 {9 R. b9 p, ]
9 J* [' x# c' \$ e* x. J9 v
EXPORT __initial_sp
& F, v, P! b' F1 W* A+ t EXPORT __heap_base' b5 E7 T! a% x: a% c
EXPORT __heap_limit
2 J# K" H' ?5 X( R3 Q$ z m
X# W* _0 y8 V6 [7 ]0 q ELSE ; 如果没定义__MICROLIB,则使用默认的C运行时库
; R1 v* R9 f# A( F) ]: V- o& b( g * ?# I4 Y6 H) A6 P. [+ P
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。
( [2 S8 p* d' x# ?! K EXPORT __user_initial_stackheap' m' t6 K. v2 D7 W1 P7 m
) y) j0 {' S9 z7 y8 k__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。
3 b7 p! b/ ^! e1 w2 [ g) U# z6 m* d) p1 H7 a0 q
LDR R0, = Heap_Mem ; 保存堆始地址" h4 V/ J7 |* r' V2 {9 S1 Q- G
LDR R1, =(Stack_Mem + Stack_Size) ; 保存栈的大小4 Z i) W+ h- a/ z7 Y, L8 E
LDR R2, = (Heap_Mem + Heap_Size) ; 保存堆的大小$ I; w$ d1 z! s
LDR R3, = Stack_Mem ; 保存栈顶指针
$ Y) U8 w' S7 r' x# t# o( C BX LR/ u3 a' ~ u2 _# |: b
; t, g( l) P- H1 L' N' R8 W1 Z ALIGN ; 填充字节使地址对齐6 K v) r( X, \4 j, T
! @1 L, F6 A8 I# |; |; K ENDIF! i6 {! v7 e# ~$ K# c
% J) t. Z( G) L* e' L
END ; END 命令指示汇编器，已到达一个源文件的末尾。
1 x, q$ g8 U, G' H* t) d, g b1 ? v: ^, a z! `
;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE***** |
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发表于 2020-12-1 17:13
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