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启动文件& w1 e! X$ f7 t
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 ********************
: {9 |: g, f. z3 B;* File Name : startup_stm32f407xx.s3 D$ M3 {! a7 ^5 W( G5 M- L6 R
;* Author : MCD Application Team
4 h4 {; O% [- @+ C7 [' I M, C;* Version : V2.6.1
Y+ }0 z* z! C! v+ g" u2 y;* Date : 14-February-2017
# L. c7 O6 Y, t `6 L" f( n, g;* Description : STM32F407xx devices vector table for MDK-ARM toolchain. 7 l( a5 F" u/ T1 \/ ]. t5 x
;* This module peRForms:
1 e0 T" h% Q6 F# d j- |;* - Set the initial SP* ]$ M, _& M2 y* h) N
;* - Set the initial PC == Reset_Handler5 _0 s& O: ]7 E
;* - Set the vector table entries with the exceptions ISR address9 f" l6 x8 h9 y9 [4 W
;* - Branches to __main in the C library (which eventually
. t/ \; P) b/ I! o/ Z) T4 D;* calls main()).
" J7 G0 c n% A# V;* After Reset the CortexM4 processor is in Thread mode,6 H: J* c. u# d* T6 G
;* priority is Privileged, and the Stack is set to Main.- D% Z( U& V# u' g6 [" [
;* <<< Use Configuration Wizard in Context Menu >>>
' J% J; Z c6 {8 r;*******************************************************************************8 G& b- L+ _& { E: `9 o, I
; $ _. T9 @4 `' f# Z+ G" L
;* Redistribution and use in source and binary forms, with or without modification, m' e/ Q! l8 s+ A! v2 q: P
;* are permitted provided that the following conditions are met:
& g5 B1 p4 B, j5 A;* 1. Redistributions of source code must retain the above copyright notice,- ]' y) ?# q9 i, E0 c6 O6 V
;* this list of conditions and the following disclaimer.
9 ]7 C% q, M+ s6 G9 b. Q) n* T3 e;* 2. Redistributions in binary form must reproduce the above copyright notice,/ B5 n) X- x: F, Q! w5 _3 o
;* this list of conditions and the following disclaimer in the documentation( N/ W3 _, k/ ]6 x2 g
;* and/or other materials provided with the distribution.
! m: F3 ]! I7 u+ g# z) J: ^;* 3. Neither the name of STMicroelectronics nor the names of its contributors0 i0 c! l$ c% e* }; v
;* may be used to endorse or promote products derived from this software, U1 W# v* d: q9 K
;* without specific prior written permission.6 z% I6 l3 g: v, d. b
;*2 w! {: m$ P' h( V
;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ B' \# x- ^1 X6 P;* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE& E! n' s0 v, \" Q6 Y8 f
;* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE* b5 c5 ^' J' E$ h
;* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE7 E( F, i+ W( N$ s/ j% H
;* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
0 [6 \# ~. j; o8 L;* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1 U+ U2 f2 R: q2 f; z, O;* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER4 C. `, X0 n2 C+ R7 _9 n
;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
$ D* C& j! y) `1 H+ Y% q% t;* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE# _1 s. I7 |' b* p; Z% O
;* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.% A' U" o4 m0 [8 L% v: K s, s
;
4 a$ ?4 y/ j! U8 A: |2 H% K; Q;*******************************************************************************
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9 z7 w: O5 R! d/ y% n" F3 z s; Amount of memory (in bytes) allocated for Stack4 ]) B2 T3 i f9 u; m
; Tailor this value to your application needs/ V& k' S9 a; R) b' Y# {% n/ T. D
; <h> Stack Configuration
/ f9 s7 c; h6 q4 }7 W; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
, ?8 U/ j# ~7 C. c; </h>' L3 Q, ~6 Z9 I6 j, v
' N& u G, O+ g' z8 u h, ]% |& d8 k
Stack_Size EQU 0x0800 ; 定义栈大小
0 {/ W( v1 O- n P ; AREA 命令指示汇编器汇编一个新的代码段或数据段。
2 [3 F* F1 ^) L% i. r& { 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
3 w/ M8 Y: q7 Z; |+ ?% tStack_Mem SPACE Stack_Size ; 分配Stack_Size的栈空间，首地址赋给Stack_Mem
% u; Y! w# Y w& Z! [/ H__initial_sp ; 栈顶指针，全局变量
. P+ ^ Z3 u1 D. e( D
6 l5 L- O( q( A
" F4 g) K% i5 R; <h> Heap Configuration* H m3 x" _3 k/ H0 |4 j0 W" Q
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>! ^( {* m% U! `' U( ]( U. y) K
; </h>" Z0 o/ p, O8 J
+ q1 @, w# y# h/ {4 UHeap_Size EQU 0x200
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AREA HEAP, NOINIT, READWRITE, ALIGN=33 ~; m8 l+ @+ ^! X
__heap_base ; 堆末底部地址$ p/ l, k1 N1 w3 [8 x
Heap_Mem SPACE Heap_Size
7 g* q* n4 b8 d% k- n2 }& k__heap_limit ; 堆界限地址- b; j1 T% G" d1 V7 H% r8 S W: j& Q9 b
( E5 b7 x$ z; k, {( V9 |; V6 y
PRESERVE8 ; 指定当前文件保持堆栈八字节对齐
7 i7 I1 y0 Y E8 h/ v5 j" ?% } THUMB ; Thumb命令模式 M7 O( J& F) O% m8 P9 m
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; 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
% u+ X% F e' V9 f; W AREA RESET, DATA, READONLY ; 代码段名称为RESET，DATA类型，只读& t3 h7 ^ {7 a( |; A& J: j+ i" C
EXPORT __Vectors ; 导出中断向量表地址（供外部可以使用）
7 R0 e; z& l4 ?( P7 j EXPORT __Vectors_End ; 导出中断向量表结束指针（供外部可以使用）, } L0 F4 g# {% e$ J
EXPORT __Vectors_Size ; 中断向量表大小（供外部可以使用）/ l: |- E1 T( ]1 T
__Vectors DCD __initial_sp ; Top of Stack6 h0 Y6 ~) F& v* X [
DCD Reset_Handler ; Reset Handler: O Z; A$ V& \; R0 i5 O, O) ~
DCD NMI_Handler ; NMI Handler
9 M& L+ m" U$ F0 J7 |, i DCD HardFault_Handler ; Hard Fault Handler
% f8 a9 Y. r, I3 M3 |$ Y b l# ?. Q& R DCD MemManage_Handler ; MPU Fault Handler, F! Q3 n5 W( U/ E$ [; N
DCD BusFault_Handler ; Bus Fault Handler
3 }& j/ a0 v' I DCD UsageFault_Handler ; Usage Fault Handler
3 i1 M6 i& g' @* d6 { DCD 0 ; Reserved
' F, J6 J+ X8 N- {2 z5 ~' G2 @) y DCD 0 ; Reserved% o* h0 d7 d9 i h+ w/ W" t/ G
DCD 0 ; Reserved
3 l# D# a# U% u DCD 0 ; Reserved
, Q( V- O3 B$ e! i- r* B" L8 t DCD SVC_Handler ; SVCall Handler$ S3 Q% W3 Q0 H. \
DCD DebugMon_Handler ; Debug Monitor Handler2 s0 I$ q5 c+ E$ u- o- s- @% C' T
DCD 0 ; Reserved
# p7 q5 R7 N- H$ O/ D) i DCD PendSV_Handler ; PendSV Handler6 ~3 {& e1 t) y$ T- C1 R
DCD SysTick_Handler ; SysTick Handler |3 _$ P2 {1 v- W$ j$ G1 u
& _% U! E, v& l; ]3 R
; External Interrupts! X, T+ l, \/ d- H6 \3 X
DCD WWDG_IRQHandler ; Window WatchDog
& L0 P$ a, B' k2 J# v# [; Q7 Z- N DCD PVD_IRQHandler ; PVD through EXTI Line detection 6 B; r ~6 t" S6 r+ I( ~
DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line * H7 f+ _8 y2 X2 f' m2 U0 f+ K1 ^
DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line
) |$ a. E, v1 \+ E DCD FLASH_IRQHandler ; FLASH 4 Y* _( h. x0 L ~9 S, [: l
DCD RCC_IRQHandler ; RCC ' B! `/ j; r" s& U. O- m
DCD EXTI0_IRQHandler ; EXTI Line0
: R, v- K" I8 ^1 p DCD EXTI1_IRQHandler ; EXTI Line1 0 q$ ^, m6 |! z u
DCD EXTI2_IRQHandler ; EXTI Line2 ) ]* ^7 A" X# k7 N7 u! c# h
DCD EXTI3_IRQHandler ; EXTI Line3
% [( G: ^1 ~$ ~- l" _' a DCD EXTI4_IRQHandler ; EXTI Line4
5 b" k; R: Z/ F7 z/ L& ^ DCD DMA1_Stream0_IRQHandler ; DMA1 Stream 0 # L1 P( x1 e( x, U5 M; N
DCD DMA1_Stream1_IRQHandler ; DMA1 Stream 1
% F& E* v1 d# ? DCD DMA1_Stream2_IRQHandler ; DMA1 Stream 2 9 D# T. [. |; y
DCD DMA1_Stream3_IRQHandler ; DMA1 Stream 3 , u: F) Y0 y2 h5 b$ [8 D5 g
DCD DMA1_Stream4_IRQHandler ; DMA1 Stream 4 ( i. j0 N) V5 q3 O
DCD DMA1_Stream5_IRQHandler ; DMA1 Stream 5 . {9 s8 C8 U5 }* S- L* R
DCD DMA1_Stream6_IRQHandler ; DMA1 Stream 6 - E8 ?# B! p$ ]' ^ [
DCD ADC_IRQHandler ; ADC1, ADC2 and ADC3s * f; _& A E# H3 M
DCD CAN1_TX_IRQHandler ; CAN1 TX : p# L4 a$ O8 k. X: U2 k+ ]
DCD CAN1_RX0_IRQHandler ; CAN1 RX0 * Q( d+ L4 i) V% q- [, K
DCD CAN1_RX1_IRQHandler ; CAN1 RX1 " n% s7 o s1 {$ S
DCD CAN1_SCE_IRQHandler ; CAN1 SCE
" \/ S% S, _& \6 b# u DCD EXTI9_5_IRQHandler ; External Line[9:5]s - h& Y8 F/ c& s, H5 a
DCD TIM1_BRK_TIM9_IRQHandler ; TIM1 Break and TIM9
9 V. S0 V9 z" u& I, E! i DCD TIM1_UP_TIM10_IRQHandler ; TIM1 Update and TIM10 . q# q3 C- }9 [9 g: Q. y+ p
DCD TIM1_TRG_COM_TIM11_IRQHandler ; TIM1 Trigger and Commutation and TIM11
+ V, u$ x+ n3 b! e! I DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare . {" Z K! y6 F' i8 u+ W- {: `
DCD TIM2_IRQHandler ; TIM2
9 q/ j( H' O; i& I: I DCD TIM3_IRQHandler ; TIM3
0 R0 J+ @- r& B7 \" L DCD TIM4_IRQHandler ; TIM4 - z y. D% [- L$ ^7 \/ `
DCD I2C1_EV_IRQHandler ; I2C1 Event
' B, s4 \1 |: J DCD I2C1_ER_IRQHandler ; I2C1 Error
: f6 X$ d( ?# b$ x9 C# m DCD I2C2_EV_IRQHandler ; I2C2 Event 2 m5 G# S/ e/ ]( |+ [8 }6 q! \
DCD I2C2_ER_IRQHandler ; I2C2 Error ) F: ]' ?, [* T
DCD SPI1_IRQHandler ; SPI1
: H( ~2 i/ f5 }! ]1 K DCD SPI2_IRQHandler ; SPI2
* n) i! r: T9 j# Z' C: t$ @ DCD USART1_IRQHandler ; USART1 + ^! U) H- s# o5 D6 O) ^
DCD USART2_IRQHandler ; USART2 0 \- O" r# w8 }+ {
DCD USART3_IRQHandler ; USART3 $ A* X9 h' m( l: G; a5 j
DCD EXTI15_10_IRQHandler ; External Line[15:10]s 9 e: T9 O. s$ h9 {( ?
DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line
* a! A/ x9 r7 }/ ^+ d DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI line + p( G) Q+ P5 X- `& g3 k- U
DCD TIM8_BRK_TIM12_IRQHandler ; TIM8 Break and TIM12 ; C" b/ Z/ T- L! B" m# S ~
DCD TIM8_UP_TIM13_IRQHandler ; TIM8 Update and TIM13
5 B5 ^! ?* z5 i* T DCD TIM8_TRG_COM_TIM14_IRQHandler ; TIM8 Trigger and Commutation and TIM14" a* Y' L& W0 f+ g, D) K
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare # i! Q, y: H2 m7 I; r j
DCD DMA1_Stream7_IRQHandler ; DMA1 Stream7 $ C6 ]5 r: H& J2 A8 G
DCD FMC_IRQHandler ; FMC - B/ \. r) W. C$ B5 S" R3 _
DCD SDIO_IRQHandler ; SDIO
" |! e1 h) R, Z, s2 d DCD TIM5_IRQHandler ; TIM5
+ o* n) z4 {& u' f' q DCD SPI3_IRQHandler ; SPI3
3 p: u: S4 D0 f. _ DCD UART4_IRQHandler ; UART4
. w" e; I& ]2 E1 ^3 j DCD UART5_IRQHandler ; UART5 $ C$ f* U* L4 ]! e! w
DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors # M/ v5 c3 c% Y+ S2 B4 e$ q+ }" Y
DCD TIM7_IRQHandler ; TIM7
+ Y$ t( `& u, r+ I4 V! w1 a) I DCD DMA2_Stream0_IRQHandler ; DMA2 Stream 0 0 j2 ~' K- _) B
DCD DMA2_Stream1_IRQHandler ; DMA2 Stream 1 " }3 p7 e/ A+ K! j v
DCD DMA2_Stream2_IRQHandler ; DMA2 Stream 2 2 p3 f4 y$ K+ y- g" p, m
DCD DMA2_Stream3_IRQHandler ; DMA2 Stream 3
- u7 N7 D2 G: O8 m DCD DMA2_Stream4_IRQHandler ; DMA2 Stream 4 . n4 X$ C8 I. w( V
DCD ETH_IRQHandler ; Ethernet
" Q2 u) g$ G3 g6 D, ? ^) m DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line
- ^2 H1 W& g# _$ ^ DCD CAN2_TX_IRQHandler ; CAN2 TX " X( ~) ^" q5 |, j7 H5 M% y
DCD CAN2_RX0_IRQHandler ; CAN2 RX0
6 w/ j% f( x3 S9 L7 Q5 A9 V DCD CAN2_RX1_IRQHandler ; CAN2 RX1
9 {5 S6 `( j; I% Q' Y8 Y DCD CAN2_SCE_IRQHandler ; CAN2 SCE . ^ I. ?! S6 n( _
DCD OTG_FS_IRQHandler ; USB OTG FS
: q/ p! O* }# s) d2 T DCD DMA2_Stream5_IRQHandler ; DMA2 Stream 5 ( c+ r3 S4 }5 o( G' l% ^+ t& e) W3 c& R
DCD DMA2_Stream6_IRQHandler ; DMA2 Stream 6 " ]' w: w, K6 p* N
DCD DMA2_Stream7_IRQHandler ; DMA2 Stream 7
$ W- j+ ~0 c& M; R DCD USART6_IRQHandler ; USART6 9 `6 o3 }0 w. Q+ t( ]
DCD I2C3_EV_IRQHandler ; I2C3 event _/ k [' E G2 S7 [
DCD I2C3_ER_IRQHandler ; I2C3 error 7 ` z$ E7 o z
DCD OTG_HS_EP1_OUT_IRQHandler ; USB OTG HS End Point 1 Out
, ~$ I: z2 X, \! q2 ? DCD OTG_HS_EP1_IN_IRQHandler ; USB OTG HS End Point 1 In " Y; ?$ g* q1 ^6 [1 q
DCD OTG_HS_WKUP_IRQHandler ; USB OTG HS Wakeup through EXTI
6 {# z/ ?3 s6 G6 {* p7 i# O DCD OTG_HS_IRQHandler ; USB OTG HS ( i. e8 k# M8 ?5 p5 S' q
DCD DCMI_IRQHandler ; DCMI
, Z. n- o' v0 f( m DCD 0 ; Reserved ; N' s# q: p( \" m y
DCD HASH_RNG_IRQHandler ; Hash and Rng& r1 T/ ]& g* Y6 N
DCD FPU_IRQHandler ; FPU* n8 w2 R; i( ~! r
& c' a. t" L$ a9 l r/ e
& j5 |9 k: W6 G+ h5 D5 M; v s; O( F__Vectors_End
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__Vectors_Size EQU __Vectors_End - __Vectors ; 计算中断向量表的大小
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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
7 x. k6 l, J) x' L% u5 n# {; 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！, X6 \3 P0 M' _3 P: L- }2 p1 r
; Reset handler
& T3 S7 q% o2 E' G1 vReset_Handler PROC ; 代码开始，与ENDP成对出现
1 U) R; S( B# L+ L( u; T: [: f 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, N) d$ G) x9 y* ^( W& L
IMPORT SystemInit ; 导入外部函数SystemInit
. ?6 M, L/ z) @& Z7 @8 y6 q IMPORT __main ; 导入外部函数__main
* ]* {# d3 o( ]
' N& w, E' }3 s/ W# W LDR R0, =SystemInit7 @" C/ @5 q/ w5 a, S% E0 M
BLX R0 ; 无返回调用SystemInit
4 a3 x6 I! a2 j LDR R0, =__main6 G0 _4 i% f* m2 _( C2 U6 b
BX R0 ; 有返回调用__main
" i& M8 _3 q \! ]4 s: I ENDP ; 代码结束，与PROC成对出现5 K6 n) o) V& @' }9 \% C
& o0 w$ B1 I7 o. n' R; Dummy Exception Handlers (infinite loops which can be modified)' `4 g+ Z: o9 g( C( Y; X
$ t% ~. |! M% P4 S; l
NMI_Handler PROC
+ a8 F5 I% z8 P8 W1 D6 d3 B5 K EXPORT NMI_Handler [WEAK]
6 H7 A" L: p8 i# p, ]: J B .5 j: x+ \6 x& Z0 e9 w" v) z2 ]
ENDP3 L" M6 F+ ?- M, z. `/ q/ j1 h r/ t4 v
HardFault_Handler\& [+ q/ u0 w: x! I0 w6 i6 c
PROC" {# w3 V& w* m; r- @' b
EXPORT HardFault_Handler [WEAK]
1 l" a; }) i' C( I% x6 w" } B .
& c9 U; i) l A! k( P1 }! y0 ~7 H ENDP6 b- ~: \& u8 i& y2 M* t
MemManage_Handler\* t& T+ A. v& R+ S6 E
PROC
0 y2 M; u; ?9 S- k EXPORT MemManage_Handler [WEAK]
8 T( w+ ]5 U4 @0 V6 m m B .
8 M* O* v% R8 k; m; f7 @" g0 A ENDP
) h/ ]' G. u1 v& F, _/ \% BBusFault_Handler\( G5 J* ?) L$ }0 H: c% i
PROC5 H: P7 V% s$ p( M6 _/ r$ _& c$ ]
EXPORT BusFault_Handler [WEAK]
+ X/ S+ S( z' g' O B .
0 h( H, a( I/ {. T! }1 Q# n ENDP8 E* o8 a9 b2 N6 ?& o
UsageFault_Handler\- z! l! Z0 O+ A; ?
PROC7 y, u1 l8 b+ v
EXPORT UsageFault_Handler [WEAK]
; v7 [9 C1 Y* H6 n B .7 ^* p% V0 {6 n! ?! l
ENDP% h. P" o& u4 R- L
SVC_Handler PROC* a5 }5 M8 j' r+ K& R# D1 z
EXPORT SVC_Handler [WEAK]
w$ q+ \" t8 N+ W) c. K# ] B .
& D3 p+ q7 p1 X ENDP
8 j7 K7 I4 l8 w7 `& j% t+ MDebugMon_Handler\* c/ X2 J+ g, N4 O% f% {
PROC. |- m8 r7 D# g9 c
EXPORT DebugMon_Handler [WEAK]" _4 ?, {+ Q) U7 j5 @/ r. z
B .' Q9 o s& Q# y }$ [
ENDP7 D, W7 j. X5 O. S8 y
PendSV_Handler PROC# v* `' M7 j. T, K0 `
EXPORT PendSV_Handler [WEAK]
. `. y5 Q- N* G" J B .
. [1 |& D; q, N( m; s6 ] ENDP0 G, K, V- Q1 }, A0 i0 u
SysTick_Handler PROC! v, L: b( q5 U4 x# G
EXPORT SysTick_Handler [WEAK]
' Z4 Q' z) w. @. E1 k! [* v( G B .
. |" b1 | z0 f0 A+ q6 r ENDP
. X- S' o: r1 O7 v* l9 d! y& o; 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
3 U8 D" P2 k3 J# ]& ^. d! ODefault_Handler PROC8 f* r& s4 I8 L2 y- Q& N0 ]0 p' m( g
/ |! Z' p5 ^! t EXPORT WWDG_IRQHandler [WEAK] 2 |& L# n3 M8 B5 M2 Y3 l( I
EXPORT PVD_IRQHandler [WEAK] 3 d3 J$ \3 {7 E; ?! G; h; c. y
EXPORT TAMP_STAMP_IRQHandler [WEAK] 8 M- s2 t" H1 O3 b3 _% c
EXPORT RTC_WKUP_IRQHandler [WEAK]
: M% S/ H! q$ M* I EXPORT FLASH_IRQHandler [WEAK] ) {* }/ y8 T8 U
EXPORT RCC_IRQHandler [WEAK] : n7 K: a" l. P6 \4 z+ h+ B% ~: c' G) M
EXPORT EXTI0_IRQHandler [WEAK]
& |/ M* ^; n7 O/ N2 N3 ~ EXPORT EXTI1_IRQHandler [WEAK] 8 f( m3 @# S: ~0 o! M
EXPORT EXTI2_IRQHandler [WEAK] 3 I" W5 Z& S0 C+ i2 G5 r
EXPORT EXTI3_IRQHandler [WEAK]
; [, l1 a3 |( |0 u! u; e$ e! V EXPORT EXTI4_IRQHandler [WEAK] / _0 d; P, B8 y3 r' {
EXPORT DMA1_Stream0_IRQHandler [WEAK] # h) V* |: S1 y+ K
EXPORT DMA1_Stream1_IRQHandler [WEAK] z9 O3 c( G# E# D& M1 Z! E
EXPORT DMA1_Stream2_IRQHandler [WEAK] $ E3 W; N. H& W, a1 I" {0 F6 k
EXPORT DMA1_Stream3_IRQHandler [WEAK] ! W ]. q1 i/ ^2 ~* p
EXPORT DMA1_Stream4_IRQHandler [WEAK]
9 v$ R0 t' q G3 a6 P EXPORT DMA1_Stream5_IRQHandler [WEAK]
5 [. w9 L6 e) u! T& B EXPORT DMA1_Stream6_IRQHandler [WEAK] # a, Q4 r+ ^+ R
EXPORT ADC_IRQHandler [WEAK]
$ }* C( h* B; j$ R/ [" x8 q; E& Q* f EXPORT CAN1_TX_IRQHandler [WEAK]
3 Z# c% U* d6 v6 A; ]0 C EXPORT CAN1_RX0_IRQHandler [WEAK] * |5 J% o0 S. e
EXPORT CAN1_RX1_IRQHandler [WEAK] 4 B) i" \" V2 W- S5 R3 d
EXPORT CAN1_SCE_IRQHandler [WEAK]
( A0 _2 ?/ Y' k/ s EXPORT EXTI9_5_IRQHandler [WEAK]
" k1 q+ b$ y' _# z EXPORT TIM1_BRK_TIM9_IRQHandler [WEAK]
0 ]" V- x9 B! {+ i EXPORT TIM1_UP_TIM10_IRQHandler [WEAK]
9 H! r7 C1 h8 m% ?6 ^ EXPORT TIM1_TRG_COM_TIM11_IRQHandler [WEAK] ' S4 R/ T! j3 y! H9 V
EXPORT TIM1_CC_IRQHandler [WEAK] 8 I" V6 u$ E% ^, d5 ~. R$ h5 e# k0 `
EXPORT TIM2_IRQHandler [WEAK] 0 i% a- i2 D9 S* |" [- K, ~/ r9 A
EXPORT TIM3_IRQHandler [WEAK] , J: Q" E" o% k# s' I
EXPORT TIM4_IRQHandler [WEAK]
- L$ f& M3 |% v' y EXPORT I2C1_EV_IRQHandler [WEAK]
6 R4 b) |/ S) p* L# f9 C' K EXPORT I2C1_ER_IRQHandler [WEAK] ' w/ \! K, A$ C; p3 \& n, {
EXPORT I2C2_EV_IRQHandler [WEAK] ' W8 `3 H) Q% Q, L9 O3 s
EXPORT I2C2_ER_IRQHandler [WEAK] 5 n& ?0 m+ x! x
EXPORT SPI1_IRQHandler [WEAK] 2 ]) K0 T9 A7 { ~
EXPORT SPI2_IRQHandler [WEAK] # d8 X% l$ U7 o! P0 X% q8 \
EXPORT USART1_IRQHandler [WEAK]
' g5 ?3 o% _% \0 L5 P EXPORT USART2_IRQHandler [WEAK] 4 \7 O7 Z2 V5 H; |4 n
EXPORT USART3_IRQHandler [WEAK]
" o+ Q$ n- e7 I2 O/ H EXPORT EXTI15_10_IRQHandler [WEAK] 8 ?& r8 r2 ]' a
EXPORT RTC_Alarm_IRQHandler [WEAK] 6 h& l" h" l& P7 `+ [& g! [
EXPORT OTG_FS_WKUP_IRQHandler [WEAK] ' j0 C* N& X" Z& m. l/ [
EXPORT TIM8_BRK_TIM12_IRQHandler [WEAK] : n( X& ~2 h$ K* h
EXPORT TIM8_UP_TIM13_IRQHandler [WEAK]
5 d) T3 d( ?/ Z b: @: h8 S' ? EXPORT TIM8_TRG_COM_TIM14_IRQHandler [WEAK]
# s$ a( J# K2 E$ K# [: O: T3 q EXPORT TIM8_CC_IRQHandler [WEAK]
7 W7 A/ k' p' e EXPORT DMA1_Stream7_IRQHandler [WEAK] * O# `. a" V/ p b+ q. _
EXPORT FMC_IRQHandler [WEAK] ; q: k! p3 W) L9 L& ~. k# u
EXPORT SDIO_IRQHandler [WEAK] 2 W2 @; s. t, L5 \
EXPORT TIM5_IRQHandler [WEAK]
0 ~1 E+ }- _: ? EXPORT SPI3_IRQHandler [WEAK]
" r/ P% X; b1 S7 ^ EXPORT UART4_IRQHandler [WEAK] 9 Y6 c0 s2 x9 w+ ~
EXPORT UART5_IRQHandler [WEAK]
3 Z* M* c* \: w! b/ d' @ _2 b( A EXPORT TIM6_DAC_IRQHandler [WEAK]
5 ]6 g7 X+ z8 t4 K! c( [ O1 g! O8 @6 a EXPORT TIM7_IRQHandler [WEAK] # D, c8 q. O- u' e0 A
EXPORT DMA2_Stream0_IRQHandler [WEAK]
- h8 R$ C0 ?! D# T/ d) U1 R EXPORT DMA2_Stream1_IRQHandler [WEAK] & m3 h4 F h! D8 k5 [
EXPORT DMA2_Stream2_IRQHandler [WEAK]
1 r) z( X9 Q( D; K- e/ J EXPORT DMA2_Stream3_IRQHandler [WEAK]
% m4 a2 t, P! M/ k- }0 n EXPORT DMA2_Stream4_IRQHandler [WEAK]
# w6 d( s$ }$ U( }' y) R4 M7 H EXPORT ETH_IRQHandler [WEAK] 0 ^1 ~+ U1 }: O4 A9 I$ r8 `
EXPORT ETH_WKUP_IRQHandler [WEAK]
0 s i9 T' J, d l2 c6 Y( u EXPORT CAN2_TX_IRQHandler [WEAK]
6 F! r% @6 ^% ` EXPORT CAN2_RX0_IRQHandler [WEAK]
S8 q* k5 q7 V2 q; Y EXPORT CAN2_RX1_IRQHandler [WEAK] / r/ u; a! O: a6 R' [
EXPORT CAN2_SCE_IRQHandler [WEAK] ! g. R* o2 _3 _, F- f
EXPORT OTG_FS_IRQHandler [WEAK]
$ A9 g8 e3 m9 l' w; S6 |: m EXPORT DMA2_Stream5_IRQHandler [WEAK] ( X" I( ?' A: ^ T1 N G9 L
EXPORT DMA2_Stream6_IRQHandler [WEAK] ' |! Y0 t+ c$ p) }
EXPORT DMA2_Stream7_IRQHandler [WEAK] # h2 H8 Y1 [) N( w$ v1 B
EXPORT USART6_IRQHandler [WEAK] 6 i8 u! A* h- o) ~. |+ V
EXPORT I2C3_EV_IRQHandler [WEAK] * a! O5 h( ~; M2 M# J) `( ~9 y
EXPORT I2C3_ER_IRQHandler [WEAK]
( k/ Y) m0 ~4 f8 B3 B! j EXPORT OTG_HS_EP1_OUT_IRQHandler [WEAK] 6 n# z$ u* E9 D* A
EXPORT OTG_HS_EP1_IN_IRQHandler [WEAK]
5 S- P5 N! ^5 U' P2 q5 e# G4 k EXPORT OTG_HS_WKUP_IRQHandler [WEAK]
1 d8 |5 K; w8 ]( w. B& I ?. [' I EXPORT OTG_HS_IRQHandler [WEAK]
7 j7 }6 [7 \% ^( A EXPORT DCMI_IRQHandler [WEAK] 8 \% P" }% O+ F# b' Z2 I
EXPORT HASH_RNG_IRQHandler [WEAK]
# l) [, Q6 R- ~3 C: C EXPORT FPU_IRQHandler [WEAK]
- ]" E" G0 r5 P2 J6 F6 U! M: z
* E0 ~, Q$ ?! G2 [; \) CWWDG_IRQHandler # A: ^2 K# D! g4 w9 b7 ?
PVD_IRQHandler
5 a8 d* X) l; `( yTAMP_STAMP_IRQHandler
/ v' Q# @' j& y' z- VRTC_WKUP_IRQHandler
$ ]+ R. O0 o" _2 ?FLASH_IRQHandler , n+ X( Z9 d( i8 x7 e; G# @- X9 R
RCC_IRQHandler
6 P0 a2 T, R- w, HEXTI0_IRQHandler
" H" t, {0 k0 [$ |8 ` YEXTI1_IRQHandler 1 I& r; h: T& C1 a+ D0 z
EXTI2_IRQHandler 2 c6 [& d) X" L2 A7 v' x1 ]
EXTI3_IRQHandler
# O2 o' l2 ~1 k) k3 f0 O* [7 WEXTI4_IRQHandler
' L# ^1 X1 q) P, C, v: aDMA1_Stream0_IRQHandler
3 E* s" ^1 V# L# @DMA1_Stream1_IRQHandler 2 Y% h5 ^' G! |9 E5 E
DMA1_Stream2_IRQHandler
: `/ F2 b6 M! w. i, lDMA1_Stream3_IRQHandler 3 t, A1 d/ F6 I; b" i# i
DMA1_Stream4_IRQHandler
; s/ }7 P$ U% V% e ^9 JDMA1_Stream5_IRQHandler
/ ?1 j7 n' K& F2 w7 GDMA1_Stream6_IRQHandler
7 F; C2 J% T$ a$ N/ XADC_IRQHandler
) o- S$ J' t5 _" h' A/ rCAN1_TX_IRQHandler & l4 j ~/ F0 x& j& E! M: I- Q8 \
CAN1_RX0_IRQHandler ; R5 B* `& _( c9 R- J$ Q
CAN1_RX1_IRQHandler
3 l4 P. k. L+ t2 i" H6 C z( y6 KCAN1_SCE_IRQHandler * Y8 w3 S5 }) c! [
EXTI9_5_IRQHandler
. U8 ]1 B3 ~, ^5 @1 _' Q: f* y$ {TIM1_BRK_TIM9_IRQHandler 2 `' |( p! |# i( l) u0 e
TIM1_UP_TIM10_IRQHandler
, H+ Z( g z5 e/ }! b+ V+ [3 G3 ZTIM1_TRG_COM_TIM11_IRQHandler 0 s4 y$ v/ L3 U
TIM1_CC_IRQHandler
- A3 d" K6 w! ?' CTIM2_IRQHandler
6 ?, ~8 i2 l: t, }TIM3_IRQHandler & S- F0 f6 e6 S. i5 Y+ I( s( v
TIM4_IRQHandler 1 P3 Q( k6 o9 a# P8 \
I2C1_EV_IRQHandler
7 s5 q: w1 f: @I2C1_ER_IRQHandler
z" h& ]: n2 m% G/ \6 kI2C2_EV_IRQHandler " d+ X( Q7 [' l; V' U: A* x: q
I2C2_ER_IRQHandler M) b! w+ Q$ j9 C* s) S: k
SPI1_IRQHandler
. Q( w/ X+ q) Z1 }SPI2_IRQHandler 2 A0 A& n& [: k3 q! O: D0 g
USART1_IRQHandler
8 q, p8 C0 }7 G/ `USART2_IRQHandler , f" @ p8 P' r* h
USART3_IRQHandler
) P1 y0 a( B1 O9 c( t9 lEXTI15_10_IRQHandler 7 U3 c+ ~" u. v" B7 A$ K+ d5 \
RTC_Alarm_IRQHandler
" U, j/ k+ `( ]9 IOTG_FS_WKUP_IRQHandler
@- `9 ~9 L. J. TTIM8_BRK_TIM12_IRQHandler 7 O! X. ?1 s2 A! L
TIM8_UP_TIM13_IRQHandler
" E: o1 B4 z& c, w0 ?9 @% ~7 jTIM8_TRG_COM_TIM14_IRQHandler
. F4 s) Y8 W/ j: k" f2 ^# KTIM8_CC_IRQHandler # ^% M0 Q5 Y: }9 v
DMA1_Stream7_IRQHandler 9 V6 k: Z5 M) _( f- Y: c% h
FMC_IRQHandler
5 B0 D% a) W5 K7 o4 y+ q& T+ P2 mSDIO_IRQHandler 4 f9 t8 `4 |. Z: q6 z) s( V
TIM5_IRQHandler w# R( v" V, V# ]0 |( | q1 B
SPI3_IRQHandler , J1 E; u' ?: R& P
UART4_IRQHandler . I% W' |/ P8 E# q) P# H
UART5_IRQHandler
2 v7 H# k p& p' v. ETIM6_DAC_IRQHandler
9 I/ a k6 `8 \2 `$ y9 E% f& v8 qTIM7_IRQHandler
: w1 o1 O! r' L4 \0 \) H$ IDMA2_Stream0_IRQHandler : C0 n h' f8 s( `
DMA2_Stream1_IRQHandler
s- E+ U7 y# G ]DMA2_Stream2_IRQHandler
4 t6 Y- p, O6 z4 Y7 n) vDMA2_Stream3_IRQHandler 9 |5 W+ O& S/ F
DMA2_Stream4_IRQHandler
M7 K* b2 T6 L; S2 bETH_IRQHandler
( k l- G0 Q) `- }- j. x. _ETH_WKUP_IRQHandler
, R3 i& J+ R* `3 yCAN2_TX_IRQHandler ' X5 M u3 N$ r; f6 F
CAN2_RX0_IRQHandler $ r5 L. f# d: j. `
CAN2_RX1_IRQHandler 3 G" l$ l7 `0 t# ]9 ^7 j; i
CAN2_SCE_IRQHandler
% q" f. S% I5 S+ WOTG_FS_IRQHandler
7 J1 o1 m1 H6 V- d8 a" J& V0 RDMA2_Stream5_IRQHandler
5 d. B0 V# p1 A+ kDMA2_Stream6_IRQHandler
. F) [% V! y! _DMA2_Stream7_IRQHandler ( h& d; w( x5 f6 `
USART6_IRQHandler 8 R4 O! u% v- T& v0 E
I2C3_EV_IRQHandler 0 F/ A$ `8 n7 s" g! J
I2C3_ER_IRQHandler / ~9 o+ i* ]% r) y& [# f8 T
OTG_HS_EP1_OUT_IRQHandler
: b6 l) s5 G7 {( Q" G* qOTG_HS_EP1_IN_IRQHandler
# X: f7 v B: F ~6 k4 I e" h5 |OTG_HS_WKUP_IRQHandler . C! S$ N) M& V8 |, X& p
OTG_HS_IRQHandler ( @! \0 j% K* ]2 \( R' O9 N
DCMI_IRQHandler
6 [# _: d1 \! @, u7 H/ oHASH_RNG_IRQHandler
, a4 B+ O/ O/ R6 I8 ~4 x) q0 j& QFPU_IRQHandler 0 J# }1 T6 r4 ]/ D' D8 j0 @, y
2 e1 T$ w0 C9 g$ r, s4 |
B .
X7 s0 S6 n5 V; P j4 h* t4 M% m# Y7 b7 z
ENDP
& g- j: n6 ~1 _9 a* g- m. j0 d+ ?; X$ R" u: a( N) `/ I+ h' ^
ALIGN0 a8 r p7 G2 N: j, B+ H, x
" J8 H$ m8 w% B& c$ v- Z/ {;*******************************************************************************
6 T+ i3 y. l- c. a3 b% Z, [2 C. q0 R; 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9 y, ^# V/ `8 j4 p8 w
;*******************************************************************************
( B! S- D1 O" G! A2 m 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。
- X4 |8 e0 M0 ?& t4 Y
" }5 ~6 a5 K- Q3 n$ E EXPORT __initial_sp) P9 U2 t n9 G$ j/ q
EXPORT __heap_base
. u$ s* r$ m: p- r EXPORT __heap_limit
- X2 m. D" d8 F* W' Y( c 6 a" }) N3 m! J; x3 J
ELSE ; 如果没定义__MICROLIB,则使用默认的C运行时库5 ^/ G# ^- d9 y4 Y
9 Q( {* i1 X# T3 T3 \& \ 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。! E( @2 W/ q- z2 R, d$ `* k3 {
EXPORT __user_initial_stackheap" b5 ?0 [ ]: B' Q, {; g
! R* d. S* |% v+ K9 l* R% \: t__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。
/ z7 ?* O& K5 G/ J4 _
+ }+ n! O, b; h: |: J& K! C LDR R0, = Heap_Mem ; 保存堆始地址
3 G3 {* C# t, N LDR R1, =(Stack_Mem + Stack_Size) ; 保存栈的大小, g. Z m: Z6 f0 Y8 M# E6 t8 ~) v
LDR R2, = (Heap_Mem + Heap_Size) ; 保存堆的大小
7 H5 @. x* |5 d3 [ ]% x LDR R3, = Stack_Mem ; 保存栈顶指针
. f+ `- g( h, e* l$ A8 e BX LR: m* ?7 M# I; e
6 }% x) M# O" b
ALIGN ; 填充字节使地址对齐
- C& O) }7 y0 Q" o7 J$ l8 t: [) ^8 I( R
ENDIF% x5 W5 [/ R5 l! ^) w8 e! C- u
" q# ~: v6 a- _
END ; END 命令指示汇编器，已到达一个源文件的末尾。
4 m, ]0 b; r: _1 K
# K2 y6 I1 u% w [;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE***** |
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发表于 2020-12-1 17:13
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