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/ `& ^4 t7 t8 {6 ?2 w启动文件
% H3 N8 S" R5 l2 n% O, R, ~8 g4 { 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。
$ Z1 X/ k6 Z! [, y
$ t9 p8 w/ p: p3 Q: n;******************** (C) COPYRIGHT 2017 STMicroelectronics ********************, l D2 |5 q) d" ?8 U
;* File Name : startup_stm32f407xx.s
' }3 I; V/ J6 J8 t$ E+ ?;* Author : MCD Application Team
* @; |+ O! O! L5 i& B;* Version : V2.6.1
& I8 V4 d* ?& W;* Date : 14-February-2017
4 z o K( r" a( V4 O;* Description : STM32F407xx devices vector table for MDK-ARM toolchain. - f; H' A% P; k$ z( p3 a; @9 o
;* This module peRForms:$ O. X3 j8 H4 A2 P
;* - Set the initial SP, H6 R2 f0 T5 j
;* - Set the initial PC == Reset_Handler3 _) p1 b* V7 v$ W% Q) d+ f9 T
;* - Set the vector table entries with the exceptions ISR address
) n4 U6 n$ ]0 \$ D;* - Branches to __main in the C library (which eventually
: ]0 Z* B- e8 k. V;* calls main()).
" t! m3 ~0 n% I% P: m9 O4 Z;* After Reset the CortexM4 processor is in Thread mode,! d5 A) L; r+ M8 h8 S2 g/ }4 T
;* priority is Privileged, and the Stack is set to Main.! v+ C8 ?3 C; g' T$ Y
;* <<< Use Configuration Wizard in Context Menu >>> b4 s' `8 L& D
;*******************************************************************************( `' I- k) Q/ {- ^" p$ t
;
/ @+ {4 J. B" Y! M9 U;* Redistribution and use in source and binary forms, with or without modification,' b2 T$ _% U% G1 `
;* are permitted provided that the following conditions are met:
4 e# ? e0 Y7 n! c2 Q% _$ P' w% K;* 1. Redistributions of source code must retain the above copyright notice,3 H6 I* w( T6 T( B" _% ]# H
;* this list of conditions and the following disclaimer.9 F1 A/ [5 W3 X7 L2 p& D
;* 2. Redistributions in binary form must reproduce the above copyright notice,& ?' Y8 G( w1 s4 N# N: z9 `: E
;* this list of conditions and the following disclaimer in the documentation+ K0 C7 Z: J! D7 i. P- c2 p
;* and/or other materials provided with the distribution.5 w1 `8 a0 H" l. P" W' b
;* 3. Neither the name of STMicroelectronics nor the names of its contributors: P, o) z' }4 F& V4 u% n4 J
;* may be used to endorse or promote products derived from this software
* Q+ _% a) }% z3 Q9 o' L) L;* without specific prior written permission.5 w6 ] i7 C7 y7 c- u* {' o
;*0 `2 C- X& H8 W" D( E7 L# z5 h+ ^
;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"; G" d* }! [- f+ c3 k5 j/ w
;* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE7 S9 Q( a/ g S) H- k+ u
;* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE) V% D+ h5 U: h+ |; P; t( ~4 F
;* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
! I% q! p+ x+ x% t;* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL# F7 Z$ {8 [1 Y
;* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
& | V" o/ E: A. h;* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ {. O# Y7 P% ~* y( C2 N;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
7 r/ d+ e" x/ P, c8 m* x* O;* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE0 t; P- P. n) S, Y2 t7 A
;* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
" R, v0 {! l) F8 E4 h;
0 m; R4 Z; j6 N6 @5 m;*******************************************************************************
) M; L. k- p; k0 T, r! s
6 t3 a; n; }+ T- M# J% l' r; Amount of memory (in bytes) allocated for Stack$ ]3 H8 L+ T$ i" Z% V( d* W
; Tailor this value to your application needs8 D$ K. q" |7 m" b: S4 P2 K2 ]
; <h> Stack Configuration6 e4 w0 ^- _5 t2 p. U
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
2 v) r. Y. m- s' S; </h>
) k3 c5 O* I# F2 x3 `! ~7 B9 G: k9 q- L8 i
Stack_Size EQU 0x0800 ; 定义栈大小: v) q! w' |% K0 S( r7 E
; AREA 命令指示汇编器汇编一个新的代码段或数据段。
. u" n( {$ y; w 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
7 [7 j2 F2 ?4 l+ oStack_Mem SPACE Stack_Size ; 分配Stack_Size的栈空间,首地址赋给Stack_Mem% Y; v0 J9 L, W
__initial_sp ; 栈顶指针,全局变量/ x; L. x& P- P! a: g, R5 E D
6 F, F0 S2 e' y) U
0 P) L- V @1 o) E; <h> Heap Configuration
9 S, k- @+ e3 u! I1 ~1 H; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
! K1 x% {! q) D% u w; </h>
6 Z+ K8 \8 U; x/ ^5 h. Z# _
/ e, ^% U% W# Q `( S% XHeap_Size EQU 0x200
1 m1 V- L% v+ e8 n2 f* T7 V' m B# s+ \3 q: i d, Y- }
AREA HEAP, NOINIT, READWRITE, ALIGN=3
( l4 p* b& q( X__heap_base ; 堆末底部地址3 n' a& @; Z! O' A, e2 F
Heap_Mem SPACE Heap_Size
+ V; i8 _- Z6 p# S9 q% {__heap_limit ; 堆界限地址
" P! U& d8 k( U( t
- X% o+ U9 D. M( e4 P PRESERVE8 ; 指定当前文件保持堆栈八字节对齐
+ g4 u8 }: T4 t' M$ { THUMB ; Thumb命令模式
7 I S; t) K- M9 N" w) p
3 D. i8 n. W* w5 k
4 J* C, |0 \7 b" \% G; _. J; 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* |. k8 b9 F! \- {
AREA RESET, DATA, READONLY ; 代码段名称为RESET,DATA类型,只读" V% n; k9 Q. Y: c3 P
EXPORT __Vectors ; 导出中断向量表地址(供外部可以使用)
- m( x: W+ M( |5 N2 ] EXPORT __Vectors_End ; 导出中断向量表结束指针(供外部可以使用)
- C/ }/ x+ O7 U4 w- y EXPORT __Vectors_Size ; 中断向量表大小(供外部可以使用)6 W, y4 F7 H) O6 V$ B& O3 l
__Vectors DCD __initial_sp ; Top of Stack5 r e% J: O& Q" P5 E% c: v0 c
DCD Reset_Handler ; Reset Handler
) l8 X0 ~& W3 t2 e# r6 N; y' v DCD NMI_Handler ; NMI Handler$ D v: [0 V' P7 B' @
DCD HardFault_Handler ; Hard Fault Handler8 Y$ w& k+ I( Y N m, q% N
DCD MemManage_Handler ; MPU Fault Handler( t- V& s1 n7 s( U( \
DCD BusFault_Handler ; Bus Fault Handler% e, U: O0 C0 k; b
DCD UsageFault_Handler ; Usage Fault Handler
0 T3 n7 w+ t% z DCD 0 ; Reserved
/ \* r0 z$ f# C' H5 Z DCD 0 ; Reserved
0 [3 ~3 a- l8 w' b1 X2 r& U5 y+ k DCD 0 ; Reserved
) c! E' |% R* K0 J DCD 0 ; Reserved$ ~2 f s8 r) p# p) f, o! k* S
DCD SVC_Handler ; SVCall Handler; r1 ^$ [, `% ~
DCD DebugMon_Handler ; Debug Monitor Handler9 \. c7 [5 F" u! b) E6 I9 }- b
DCD 0 ; Reserved
) ?/ j% r& J! P% F2 }# B* Y DCD PendSV_Handler ; PendSV Handler
% P2 S' g( ]% | DCD SysTick_Handler ; SysTick Handler
1 a- _$ i9 p9 t# J
8 f, E- V( P3 ? ; External Interrupts
. @& Q. n) S- m0 G% H DCD WWDG_IRQHandler ; Window WatchDog
0 p. u9 |0 \+ X. Q1 n1 P9 D DCD PVD_IRQHandler ; PVD through EXTI Line detection
; b4 J! {) r9 x. [ DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line
: i2 T$ ?, `" _ DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line 8 u" A7 Z- J. |0 j8 Z/ ^
DCD FLASH_IRQHandler ; FLASH
{" `- W$ |9 s5 @ DCD RCC_IRQHandler ; RCC
! ~5 x3 W& t0 J6 |/ I- ` DCD EXTI0_IRQHandler ; EXTI Line0 6 ?, F& V5 _, i/ z7 w" b
DCD EXTI1_IRQHandler ; EXTI Line1 a9 l5 z% g2 E( ]% P
DCD EXTI2_IRQHandler ; EXTI Line2
~* o9 j! ^; u DCD EXTI3_IRQHandler ; EXTI Line3 8 m8 F: U6 s' \4 |
DCD EXTI4_IRQHandler ; EXTI Line4 1 `& V+ h) \; k5 E; g/ @# D
DCD DMA1_Stream0_IRQHandler ; DMA1 Stream 0 3 r w8 ^( z. Q" x' z
DCD DMA1_Stream1_IRQHandler ; DMA1 Stream 1
5 |6 V: u( m! s2 g8 J DCD DMA1_Stream2_IRQHandler ; DMA1 Stream 2
( A! n8 w/ [6 L4 l1 `$ D8 P2 i DCD DMA1_Stream3_IRQHandler ; DMA1 Stream 3 . U" p7 q0 n7 P' y9 i' p# v# H1 |
DCD DMA1_Stream4_IRQHandler ; DMA1 Stream 4
& h# `; C4 s: y% G! }% c' k DCD DMA1_Stream5_IRQHandler ; DMA1 Stream 5 , j( \/ b% n" J; | ?! i8 I
DCD DMA1_Stream6_IRQHandler ; DMA1 Stream 6
2 I" U. l. {6 ?# l/ ~+ M( ]: {1 f1 o DCD ADC_IRQHandler ; ADC1, ADC2 and ADC3s
6 l0 @6 ], }$ A8 S/ G: Z DCD CAN1_TX_IRQHandler ; CAN1 TX . m3 `; ]$ d" G5 ?% d
DCD CAN1_RX0_IRQHandler ; CAN1 RX0
) L& y+ Z+ V/ Y0 h DCD CAN1_RX1_IRQHandler ; CAN1 RX1 & l8 V p4 h) w' v0 B
DCD CAN1_SCE_IRQHandler ; CAN1 SCE
* z- j( _/ y' o( { DCD EXTI9_5_IRQHandler ; External Line[9:5]s
% N! H! r" _9 b& D6 { DCD TIM1_BRK_TIM9_IRQHandler ; TIM1 Break and TIM9 9 G% h$ p; m; P
DCD TIM1_UP_TIM10_IRQHandler ; TIM1 Update and TIM10 : Q3 W# L; A' _" v I" [
DCD TIM1_TRG_COM_TIM11_IRQHandler ; TIM1 Trigger and Commutation and TIM11
5 R0 N: c' U8 y5 d& F; B DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
9 n+ h; Y) k: P, v. b, c DCD TIM2_IRQHandler ; TIM2 ! a' Q6 Y, F$ u. ~4 z5 }" J6 y$ U
DCD TIM3_IRQHandler ; TIM3
6 u; A9 U8 P( i9 P* M \9 p DCD TIM4_IRQHandler ; TIM4
4 S9 i+ D, [% t# n4 d DCD I2C1_EV_IRQHandler ; I2C1 Event
9 n! ], @* v* ?2 B% G DCD I2C1_ER_IRQHandler ; I2C1 Error 0 a: X( @/ g+ B4 k7 @% e
DCD I2C2_EV_IRQHandler ; I2C2 Event 8 u% B" W. Q) F0 j) c4 E
DCD I2C2_ER_IRQHandler ; I2C2 Error
4 C* y0 y2 z* G, v5 o) }" [3 M. L* ? DCD SPI1_IRQHandler ; SPI1
7 ]8 R- T4 @7 ~0 Z& e! h0 k* S$ f DCD SPI2_IRQHandler ; SPI2
' [( f( g3 b6 t% @4 b' d8 }9 f S DCD USART1_IRQHandler ; USART1 * a7 L7 k7 `) W+ N4 ^& s, N% X
DCD USART2_IRQHandler ; USART2 ?; K( T: Q+ k3 c
DCD USART3_IRQHandler ; USART3 9 `1 n; T" `+ `
DCD EXTI15_10_IRQHandler ; External Line[15:10]s ; x1 Y0 W5 y- i: H- \! U4 ?% c: v
DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line 5 e8 [3 Q' {# ]% s& L
DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI line
6 i9 u; r3 w5 f6 j I DCD TIM8_BRK_TIM12_IRQHandler ; TIM8 Break and TIM12 % a' z0 x6 y# V- {: \3 p
DCD TIM8_UP_TIM13_IRQHandler ; TIM8 Update and TIM13 : R# a$ \. s1 E" C9 H
DCD TIM8_TRG_COM_TIM14_IRQHandler ; TIM8 Trigger and Commutation and TIM147 k5 Y# c# x. H3 r: v1 n4 J! A8 p0 v
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare
9 x3 c/ i; v3 ~4 k0 m DCD DMA1_Stream7_IRQHandler ; DMA1 Stream7
* l7 y3 r; E2 F. ` DCD FMC_IRQHandler ; FMC - X+ P+ D, y+ z4 V8 C
DCD SDIO_IRQHandler ; SDIO 6 J# @7 c* p9 X$ C* o- m) C; a
DCD TIM5_IRQHandler ; TIM5 ) B6 K5 \4 H; R, K2 Y
DCD SPI3_IRQHandler ; SPI3 . O8 w. j# y( n7 r- Z/ k
DCD UART4_IRQHandler ; UART4
" g% H4 c; ~3 [- n: ^3 M# T: e DCD UART5_IRQHandler ; UART5
/ q9 [3 ^; A0 ]9 h: m5 t C C1 D. o* i E DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors 4 t- s" P! v: R' P+ C: r& f
DCD TIM7_IRQHandler ; TIM7
2 b" b) F0 r+ H! t# I3 P DCD DMA2_Stream0_IRQHandler ; DMA2 Stream 0
; q( m/ B( c' j0 ? DCD DMA2_Stream1_IRQHandler ; DMA2 Stream 1 1 F$ `8 V5 a( i5 g4 Z5 }# E
DCD DMA2_Stream2_IRQHandler ; DMA2 Stream 2 0 o. ]" m f+ i5 l6 h" I# e; u; S
DCD DMA2_Stream3_IRQHandler ; DMA2 Stream 3 ) U% G* y( n# }! O4 u3 c
DCD DMA2_Stream4_IRQHandler ; DMA2 Stream 4
m! b+ H: C& |/ }4 m5 f% C7 h DCD ETH_IRQHandler ; Ethernet ) {9 I, }5 t- n2 [9 n5 a: m" T
DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line & G# @1 F v9 P& P+ A& S
DCD CAN2_TX_IRQHandler ; CAN2 TX ' V9 h' T/ ?" ~- [
DCD CAN2_RX0_IRQHandler ; CAN2 RX0 5 V3 q: z, V! M* p4 G" l; X
DCD CAN2_RX1_IRQHandler ; CAN2 RX1
" Y# ^% V0 H( T, j5 o DCD CAN2_SCE_IRQHandler ; CAN2 SCE
2 P$ k5 v( M, c0 f4 _# J: g" f DCD OTG_FS_IRQHandler ; USB OTG FS
$ S E4 h! {! | DCD DMA2_Stream5_IRQHandler ; DMA2 Stream 5 # r; x& L" L- V3 O* H
DCD DMA2_Stream6_IRQHandler ; DMA2 Stream 6 j( Y3 I6 S/ q+ [! P# @7 n3 i
DCD DMA2_Stream7_IRQHandler ; DMA2 Stream 7 * A4 ?% g$ X$ i% I2 c: z3 r: h
DCD USART6_IRQHandler ; USART6 4 b q6 O U! t7 |$ U1 p
DCD I2C3_EV_IRQHandler ; I2C3 event
3 U+ ~% P' J! [# i$ z/ J8 i DCD I2C3_ER_IRQHandler ; I2C3 error 2 p' w% N! E2 f/ R* Q- s
DCD OTG_HS_EP1_OUT_IRQHandler ; USB OTG HS End Point 1 Out ( }/ W5 C3 k9 L" I+ \$ E
DCD OTG_HS_EP1_IN_IRQHandler ; USB OTG HS End Point 1 In 5 {" A) \5 Q1 Z0 d3 O( ]
DCD OTG_HS_WKUP_IRQHandler ; USB OTG HS Wakeup through EXTI + S! t. M) C; A* t
DCD OTG_HS_IRQHandler ; USB OTG HS
3 w0 A/ ^ D, C' D5 U DCD DCMI_IRQHandler ; DCMI
5 D2 W; Z3 b, {4 o( B3 f DCD 0 ; Reserved $ y k9 C% s" X9 ^
DCD HASH_RNG_IRQHandler ; Hash and Rng( t, \: E) L, i4 E
DCD FPU_IRQHandler ; FPU% U# _, F% P+ y+ }4 w
: s! n9 H7 O1 ?* d r
) h! o; B I1 x! `9 H U* T/ b__Vectors_End$ \' S% P% {9 j, o9 c u
3 q5 B! {$ U5 H3 n y; Z: V__Vectors_Size EQU __Vectors_End - __Vectors ; 计算中断向量表的大小
) t3 h1 U B/ Y1 u0 ]( X) J m/ }, Y& A9 F
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 Z0 O. N* A$ t/ R
; 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!
C: o5 `$ i" p4 _" h; Reset handler
% J! E) ]) t5 X' a9 uReset_Handler PROC ; 代码开始,与ENDP成对出现 : a( Q, V& N3 I2 E& q1 m
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
1 P ^3 A1 V6 S: [3 O3 Q. i+ T IMPORT SystemInit ; 导入外部函数SystemInit# A/ S3 i' T7 N% ?7 d! r# R* n
IMPORT __main ; 导入外部函数__main
; q: J% g- \, T1 `7 y$ I2 v3 h E( ~
LDR R0, =SystemInit* d; p# I: `- _7 q
BLX R0 ; 无返回调用SystemInit
j1 G: ^, O" P( m: ~' H' R) { LDR R0, =__main
1 M3 q! F @% G BX R0 ; 有返回调用__main+ _" q9 |7 |2 X" P3 V% \' K
ENDP ; 代码结束,与PROC成对出现
6 n1 Q% X9 J$ a
0 T/ K, e7 e1 y3 w; Dummy Exception Handlers (infinite loops which can be modified)- E; ?+ L% b' [) n0 @: x
8 n5 _. o/ r2 S0 c% Q. }1 W
NMI_Handler PROC
! f9 J, d$ s* p8 \! _ EXPORT NMI_Handler [WEAK]
8 P; x' Q6 t/ Z- p7 @; o B .$ J6 I ]0 q4 F7 s1 U: `! o
ENDP
. G9 D* o* M1 X$ }6 I: C: R; KHardFault_Handler\: i: ?- m7 s# n9 S3 V8 I* t! X
PROC
5 \# w1 s- k2 Q$ b EXPORT HardFault_Handler [WEAK]' I- M; i+ Q* j) p
B .
' q9 z8 ^# w4 x. c! T- a0 s2 c ENDP
1 O* Y# Z( Z4 b* z; HMemManage_Handler\ l: Z! d' E1 ]( \) g' G
PROC7 q/ R" j/ q3 \+ G- v! p! m
EXPORT MemManage_Handler [WEAK]
^# H( A) W0 B8 E, `$ @ G B .
, u+ Z* \5 @. e% V) L5 f ENDP
( Q& ?2 @$ D4 v, R- p0 ZBusFault_Handler\9 i* J5 U( C! x$ d% T I
PROC
1 p1 _& w+ E6 [/ B8 `) M EXPORT BusFault_Handler [WEAK]
+ x& L! h" i! H6 O3 \ B .& ]/ C* \- o) ]. p
ENDP
, h; y7 E6 L; w8 j. mUsageFault_Handler\2 C x/ l+ o- d7 ~. k, u2 |* m
PROC
1 M$ v! M9 M/ c+ ^/ l EXPORT UsageFault_Handler [WEAK]
e+ D9 }4 w" W B .
6 J- K. S0 f' ^$ w) [, e" a ENDP
& p/ j% _; m0 D" j S% U1 W" I0 ]SVC_Handler PROC9 {7 J; v) x+ \" f( s6 p
EXPORT SVC_Handler [WEAK]- E+ \2 d+ ]& b7 }6 I' ~% D
B .* B9 T1 r; z6 V& c9 d0 Q, x
ENDP
6 A, e* l) c/ d( ?' h+ C( I$ |6 @3 ODebugMon_Handler\! a$ n7 A) h1 u
PROC' w3 V) w# N/ j$ \% ~0 z
EXPORT DebugMon_Handler [WEAK]
: V" ~, x+ b# r+ b1 `0 {, u0 Y B .
$ f/ u! y2 D+ ^9 S& ? ENDP4 E% Y4 j! }- i$ ~, ]& f! J0 Y
PendSV_Handler PROC5 W% P$ r7 Q/ s. C
EXPORT PendSV_Handler [WEAK]
; ?8 L8 R0 z2 H( } B .) C7 {: k' {! o2 x
ENDP
: Z7 Z( e" ?/ x) nSysTick_Handler PROC+ A; q; Y5 Z! e
EXPORT SysTick_Handler [WEAK]8 b2 I0 y$ I" n' ^9 F
B .' ]3 |* a6 h) b- a$ U
ENDP; W- X! v/ l0 v* F# N4 h
; 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. H2 n% L9 V3 S
Default_Handler PROC) e+ k# @$ Q# L# o) t6 G
" @2 b1 D; t6 C; g$ z
EXPORT WWDG_IRQHandler [WEAK] 9 L' K+ @4 ^( d- F' }
EXPORT PVD_IRQHandler [WEAK]
, i& O0 N" Y" K) C1 ] H EXPORT TAMP_STAMP_IRQHandler [WEAK] ) P& ?* z9 o" L1 a& F
EXPORT RTC_WKUP_IRQHandler [WEAK]
! H7 z. K0 p$ d% H' L EXPORT FLASH_IRQHandler [WEAK] ! n& f5 y Z# I0 w- s, f5 r6 O' @/ e
EXPORT RCC_IRQHandler [WEAK]
1 S& P! i8 |8 ]$ B. ^ EXPORT EXTI0_IRQHandler [WEAK] 7 \6 V9 ] v- _' l3 r
EXPORT EXTI1_IRQHandler [WEAK]
. f' u: C' P8 [ EXPORT EXTI2_IRQHandler [WEAK] 0 o9 L9 _" t# ~
EXPORT EXTI3_IRQHandler [WEAK] % Q% P! b7 O! H5 t
EXPORT EXTI4_IRQHandler [WEAK] 4 K; o% i7 O& i% V
EXPORT DMA1_Stream0_IRQHandler [WEAK] " K' B! ~7 E7 g4 B
EXPORT DMA1_Stream1_IRQHandler [WEAK]
& ^' [0 ?. c' f- K3 W* n- o; A EXPORT DMA1_Stream2_IRQHandler [WEAK]
+ }' Z: I* F# ]2 a EXPORT DMA1_Stream3_IRQHandler [WEAK]
! r! e& ` [( ~- @ EXPORT DMA1_Stream4_IRQHandler [WEAK]
9 P* Y' r3 d* v6 ~% U/ h+ x2 c% D EXPORT DMA1_Stream5_IRQHandler [WEAK]
. t# f1 _1 h6 f; K- y EXPORT DMA1_Stream6_IRQHandler [WEAK] : S% |1 Y# E6 G. t
EXPORT ADC_IRQHandler [WEAK]
# S% Z' d$ G" u* ~, }; J EXPORT CAN1_TX_IRQHandler [WEAK]
: E5 u' {9 R8 n T EXPORT CAN1_RX0_IRQHandler [WEAK] 0 c5 a. f$ \# B3 Y, N( S
EXPORT CAN1_RX1_IRQHandler [WEAK] $ L/ y: k2 ]5 k$ S) ?, |' R
EXPORT CAN1_SCE_IRQHandler [WEAK] 8 C4 p0 L7 X" L$ W/ C7 |0 V- i* v& F9 a6 I
EXPORT EXTI9_5_IRQHandler [WEAK] 3 m9 X( n* C$ Z7 G# y0 H( n9 {0 z
EXPORT TIM1_BRK_TIM9_IRQHandler [WEAK]
; x! i* ^* T) _* ^! W h% G9 C EXPORT TIM1_UP_TIM10_IRQHandler [WEAK]
" ^$ c" H m3 ^: s EXPORT TIM1_TRG_COM_TIM11_IRQHandler [WEAK] . A! ~' j# r' y( d
EXPORT TIM1_CC_IRQHandler [WEAK]
3 P5 ^$ d. _, B* L EXPORT TIM2_IRQHandler [WEAK]
/ e, z+ m$ L6 R$ ?1 L EXPORT TIM3_IRQHandler [WEAK]
( G* z7 u' Q9 J EXPORT TIM4_IRQHandler [WEAK]
4 I0 V6 w8 Y0 ?" R( p EXPORT I2C1_EV_IRQHandler [WEAK]
5 v9 t8 @- }# a* x EXPORT I2C1_ER_IRQHandler [WEAK]
- U$ I8 Q. S/ O7 F ] EXPORT I2C2_EV_IRQHandler [WEAK]
" b+ J" H/ w+ g5 a! X EXPORT I2C2_ER_IRQHandler [WEAK]
' T! F* D/ B- c. ~9 z+ g EXPORT SPI1_IRQHandler [WEAK]
, O5 ~2 {% h0 `& X EXPORT SPI2_IRQHandler [WEAK] 9 ?% h, x3 u, s. `8 D2 x( U
EXPORT USART1_IRQHandler [WEAK]
" ^; _, ]( R" A2 c. t5 P% k EXPORT USART2_IRQHandler [WEAK]
3 v% |$ M* O2 r EXPORT USART3_IRQHandler [WEAK]
- x5 x/ g8 Y& b( D" R# |' x EXPORT EXTI15_10_IRQHandler [WEAK] * K6 Z; M- U; y! b( ]( U2 H
EXPORT RTC_Alarm_IRQHandler [WEAK] ! z1 X, |2 u G* O6 _2 i
EXPORT OTG_FS_WKUP_IRQHandler [WEAK]
$ l B" e6 b* {, r) l- I EXPORT TIM8_BRK_TIM12_IRQHandler [WEAK] / {6 q* P ]3 z/ U8 ?' ] v- ~9 A
EXPORT TIM8_UP_TIM13_IRQHandler [WEAK] : x' h" W9 z! m, X) A( u9 x
EXPORT TIM8_TRG_COM_TIM14_IRQHandler [WEAK] ; }7 ?/ D+ H6 P U; ~' W$ z- L ]
EXPORT TIM8_CC_IRQHandler [WEAK]
# p- x2 s( _6 |( R+ @9 v8 X5 _ EXPORT DMA1_Stream7_IRQHandler [WEAK]
3 c3 S9 f" T- `! [ EXPORT FMC_IRQHandler [WEAK] ! @9 J5 z' ^* S$ J. J" _5 X
EXPORT SDIO_IRQHandler [WEAK]
) ^9 _9 a; v% I9 r7 R EXPORT TIM5_IRQHandler [WEAK] s1 P* Z* k. |5 X6 ^. n
EXPORT SPI3_IRQHandler [WEAK]
2 A+ }" e0 `0 V j9 @7 S EXPORT UART4_IRQHandler [WEAK] 5 K1 w' `) t( @2 D2 X; D
EXPORT UART5_IRQHandler [WEAK] 6 L6 l2 }( P: [. G+ x. a6 A% z$ D
EXPORT TIM6_DAC_IRQHandler [WEAK] 4 \) ]* a3 `$ x" b$ |# w o( {2 U
EXPORT TIM7_IRQHandler [WEAK] ! D: r6 P1 B$ k2 L' V O. N
EXPORT DMA2_Stream0_IRQHandler [WEAK] % I. z1 O4 Z% |) Y
EXPORT DMA2_Stream1_IRQHandler [WEAK]
, m$ B# s& g: o8 [0 R EXPORT DMA2_Stream2_IRQHandler [WEAK]
, D8 {6 m, N! U$ ~* T EXPORT DMA2_Stream3_IRQHandler [WEAK]
$ f2 \- X0 B' ?1 B( J o EXPORT DMA2_Stream4_IRQHandler [WEAK] ) L1 ^9 ^2 k9 Z7 t0 T8 s0 g
EXPORT ETH_IRQHandler [WEAK] ) m0 T! L( }6 U1 I) k8 N$ ?
EXPORT ETH_WKUP_IRQHandler [WEAK]
7 d. z6 T" K2 H# i$ U2 C EXPORT CAN2_TX_IRQHandler [WEAK] 1 o! J% a' y" d0 @( c7 w, O
EXPORT CAN2_RX0_IRQHandler [WEAK]
( s' f6 u5 g( w+ w1 U- v EXPORT CAN2_RX1_IRQHandler [WEAK]
: l+ R- l5 R# ]/ y0 c* g7 G$ s EXPORT CAN2_SCE_IRQHandler [WEAK] a, L* C. Z% A/ h* i
EXPORT OTG_FS_IRQHandler [WEAK] * N# C2 h+ b' t6 I1 H; s$ @
EXPORT DMA2_Stream5_IRQHandler [WEAK]
# ]& c9 F2 z% x EXPORT DMA2_Stream6_IRQHandler [WEAK] 4 U8 d, ]0 {7 C
EXPORT DMA2_Stream7_IRQHandler [WEAK]
/ d5 E2 t1 |* o- y! t EXPORT USART6_IRQHandler [WEAK] 1 q7 B: O! @: s
EXPORT I2C3_EV_IRQHandler [WEAK] 7 S) {! s9 K% b J4 w
EXPORT I2C3_ER_IRQHandler [WEAK] & B. i p9 W+ t; q7 M
EXPORT OTG_HS_EP1_OUT_IRQHandler [WEAK]
# Q+ S2 c: w `* B' s EXPORT OTG_HS_EP1_IN_IRQHandler [WEAK] 5 E# g9 z/ r0 Z
EXPORT OTG_HS_WKUP_IRQHandler [WEAK]
* u- z& q: f: L; W u* u EXPORT OTG_HS_IRQHandler [WEAK] 2 A0 y& V; ^- j2 a
EXPORT DCMI_IRQHandler [WEAK]
- e* k/ G8 O# c' v. T* o4 B; M EXPORT HASH_RNG_IRQHandler [WEAK]
# _$ s$ E' B* P. x W. x EXPORT FPU_IRQHandler [WEAK]
; S. ~, N) G& i( E; c 0 G8 ~1 q$ A" J6 O4 ~8 F
WWDG_IRQHandler
3 g' I8 \4 i8 Z' A1 y) cPVD_IRQHandler
- v, M0 d' n# j5 ?+ T6 K. v) H0 ~TAMP_STAMP_IRQHandler
; M1 T* O/ m* N; h$ l1 jRTC_WKUP_IRQHandler
4 R9 C, y, C8 B- Z2 dFLASH_IRQHandler 3 N0 j6 b3 D/ |) d
RCC_IRQHandler ) G. E# ~5 g) V; B8 L4 N# u& J5 }
EXTI0_IRQHandler
' o- C9 o k. d1 |6 a) {1 k+ w8 gEXTI1_IRQHandler
% ~. B. r( K4 h2 K5 [$ G1 W/ {& TEXTI2_IRQHandler
; V. I5 b$ A% X- vEXTI3_IRQHandler & X* T6 P* {7 R( r
EXTI4_IRQHandler 7 {$ e# `& M9 V/ }6 ?
DMA1_Stream0_IRQHandler
5 e* W4 y8 A- DDMA1_Stream1_IRQHandler , I- H% M8 V8 G4 O& }# l
DMA1_Stream2_IRQHandler
7 b9 s( c' ]' f3 hDMA1_Stream3_IRQHandler / Q7 O$ h1 W7 \$ [/ k, ?& w$ y
DMA1_Stream4_IRQHandler
/ ^& |& M' ^ U1 ?% h# ADMA1_Stream5_IRQHandler ' u* Q7 m* g6 g! c% w/ b
DMA1_Stream6_IRQHandler ( m8 ]8 @" S8 Y3 Y! ^1 c, s" ]* R$ {
ADC_IRQHandler
0 m1 `) @% Y$ Q% jCAN1_TX_IRQHandler
. E2 Y+ _9 q; V6 K7 `* S4 ECAN1_RX0_IRQHandler 2 i: U( @0 |! z$ P
CAN1_RX1_IRQHandler . s9 m! M# B' X, q. U
CAN1_SCE_IRQHandler
% z! n1 P) v s$ g; yEXTI9_5_IRQHandler
& i( c1 r% J' U) q/ e: ~& yTIM1_BRK_TIM9_IRQHandler 1 E) D5 X$ c# O: V, W3 \% ]
TIM1_UP_TIM10_IRQHandler
0 {$ ]0 w: b+ F+ J( ~8 t9 V# j! ~TIM1_TRG_COM_TIM11_IRQHandler
0 O# _8 y$ t2 u0 W8 \7 ]TIM1_CC_IRQHandler
- t( r" }: a; a5 GTIM2_IRQHandler m3 d; W: M3 i0 }" k. s' X/ j- G
TIM3_IRQHandler
* l" f4 W8 q% \2 W+ I2 s: `% RTIM4_IRQHandler ) U$ N! U6 v- {. L
I2C1_EV_IRQHandler : `6 @% `7 r* o |; r$ j t
I2C1_ER_IRQHandler
w9 @7 s& X1 _0 S5 h- HI2C2_EV_IRQHandler
. U3 p5 w% F" g' A( F! TI2C2_ER_IRQHandler 1 g, X7 o7 a. M4 t. `! l
SPI1_IRQHandler # F0 Z8 H- M) \1 A6 K7 Q
SPI2_IRQHandler
/ o" o. V& Z% n. o {USART1_IRQHandler
" B T; c1 C$ l5 y- Z0 s- aUSART2_IRQHandler
2 c. g* w/ G4 Y3 w1 oUSART3_IRQHandler - L& x, E1 k& s$ \* ^
EXTI15_10_IRQHandler
9 Q! u( \. b9 T) G2 D9 S* KRTC_Alarm_IRQHandler
# H8 S0 d3 {3 T9 E- ~OTG_FS_WKUP_IRQHandler : ~+ p7 C3 b% J& R4 {7 \
TIM8_BRK_TIM12_IRQHandler 2 n3 L, d8 I! h) q. y7 T! N$ E
TIM8_UP_TIM13_IRQHandler % h! O% m# z7 l4 r
TIM8_TRG_COM_TIM14_IRQHandler & u% O! L: l/ \0 e1 H
TIM8_CC_IRQHandler , l% K/ i' l2 \" c) z
DMA1_Stream7_IRQHandler 8 V+ m' S/ T4 ]5 H
FMC_IRQHandler
5 @: F0 Z5 V' U; J9 q2 c7 j6 m( pSDIO_IRQHandler / `- ?* a$ G; M7 _# c
TIM5_IRQHandler
# k$ [+ O, d6 \3 s! @SPI3_IRQHandler : g4 O& Q$ ]3 v5 n, w( u; G
UART4_IRQHandler
6 v" ]. X4 z+ r6 e% a7 u# J \UART5_IRQHandler 0 h# S, p; {+ |- _" f8 r5 c
TIM6_DAC_IRQHandler ]0 e7 d& _" R) h4 E' J, p" j
TIM7_IRQHandler 7 G8 R6 Z% _, O' p8 E5 t7 v3 K7 ~
DMA2_Stream0_IRQHandler ( n/ t' K1 b0 W* `3 B! Q
DMA2_Stream1_IRQHandler 7 z. `/ C" c$ B1 i& f8 Z: N7 j$ c
DMA2_Stream2_IRQHandler 9 [ ~! S L% d' W ~! x, l" P/ [
DMA2_Stream3_IRQHandler 3 u" P) G3 s# X' o1 g7 D
DMA2_Stream4_IRQHandler
" b. `( f& `0 kETH_IRQHandler # K* J$ w, u1 b4 D5 s3 e- }
ETH_WKUP_IRQHandler 6 Q' h& I8 R4 k( O' ^5 I( t
CAN2_TX_IRQHandler ! e5 P; `: ?2 W: ^, _! P1 c! l
CAN2_RX0_IRQHandler
( O3 a+ E% M% M6 h/ l: U7 S6 YCAN2_RX1_IRQHandler ) {6 j5 P/ B I# E( y5 p' Y4 b
CAN2_SCE_IRQHandler 7 s0 h8 i2 s- _6 p% A
OTG_FS_IRQHandler $ E7 N l7 I' R V( \: U
DMA2_Stream5_IRQHandler 6 Z+ f% G* N9 Y4 Z( I2 ] `
DMA2_Stream6_IRQHandler
, v) U6 A0 H: f- X. q+ S0 EDMA2_Stream7_IRQHandler
. K# h0 e3 W ]6 gUSART6_IRQHandler
) \" g! C, i8 o, T5 F7 m6 A8 bI2C3_EV_IRQHandler + @6 N1 c' m9 W0 X' m* B' e: A, m
I2C3_ER_IRQHandler ' z2 u# |! ~3 @
OTG_HS_EP1_OUT_IRQHandler
( Z' u" z( Y V5 y$ I* X# Y+ Q3 BOTG_HS_EP1_IN_IRQHandler 5 q% P R: [3 F6 S9 C' P
OTG_HS_WKUP_IRQHandler " X- } V% V* h
OTG_HS_IRQHandler
5 }1 t, k8 \7 E" j" {6 X3 G3 yDCMI_IRQHandler
$ W9 S( n9 m( ]' [; pHASH_RNG_IRQHandler' m, m' }$ u& R
FPU_IRQHandler
3 H$ A' X/ L" z. S - N5 H9 x" c" _; [0 N( }$ Z1 u' t
B .
' K" S* Z% D' T& B7 N: p
, t% |! w- l# P1 U ENDP
/ R+ i; v" w7 u
7 o/ g+ k# J M4 M$ e ALIGN9 ~- z; _; e+ M+ s! f1 R( k
& e+ _' t r5 i8 _
;*******************************************************************************
- r3 b1 P0 i$ T% q* n M* D' f; 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
; C6 j/ Y6 ^+ A: ^;*******************************************************************************
% _) E3 @ i% E3 G) Q 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。+ l# `4 b; {- ]1 v3 v) t* M6 j
8 m0 X! }7 f/ I0 w
EXPORT __initial_sp* z; p) G' r# R. @1 e- V
EXPORT __heap_base
U; |5 f/ o) N9 N! f EXPORT __heap_limit
`& U2 G& d' H4 l4 `( r . R* B3 T# r3 p- J
ELSE ; 如果没定义__MICROLIB,则使用默认的C运行时库$ }6 t: Z5 a( T3 ]- n- g9 J9 D$ Q* i
- T$ v) P7 o( g0 l* H
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。
- }) ]& r( V [0 e* \% {; ]1 C$ y EXPORT __user_initial_stackheap$ J. z- Y" S, q
& Z* ], s* Z% w9 R
__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。6 j8 J8 \( V3 u* ^" B$ I
3 ]& J, q" Q7 I, f& T) b LDR R0, = Heap_Mem ; 保存堆始地址, v; W3 |! |$ P
LDR R1, =(Stack_Mem + Stack_Size) ; 保存栈的大小
* z; u: e' x4 m" Q9 X LDR R2, = (Heap_Mem + Heap_Size) ; 保存堆的大小
6 a0 Y1 }, t2 m- f% A [ LDR R3, = Stack_Mem ; 保存栈顶指针/ H6 s6 r9 j8 }0 b, }& k _( i
BX LR4 E# r/ r! R& M( N( `6 r+ C
8 h W, x* b# H! T
ALIGN ; 填充字节使地址对齐
' E! h0 s' r5 j6 F% h9 P+ b; a
2 L7 ~. Z( n$ \ C; @7 R* X ENDIF
1 t9 z1 } D% ]2 j/ J# w* H" z3 I1 Q2 r" A
END ; END 命令指示汇编器,已到达一个源文件的末尾。
- j N6 n/ s; p+ k; F7 J
3 d$ C s* c. ?/ n' T;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE***** |
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