- ;******************** (C) COPYRIGHT 2017 STMicroelectronics ********************
- ;* File Name : startup_stm32f407xx.s
- ;* Author : MCD Application Team
- ;* Description : STM32F407xx devices vector table for MDK-ARM toolchain.
- ;* This module performs:
- ;* - Set the initial SP
- ;* - Set the initial PC == Reset_Handler
- ;* - Set the vector table entries with the exceptions ISR address
- ;* - Branches to __main in the C library (which eventually
- ;* calls main()).
- ;* After Reset the CortexM4 processor is in Thread mode,
- ;* priority is Privileged, and the Stack is set to Main.
- ;* <<< Use Configuration Wizard in Context Menu >>>
- ;*******************************************************************************
- ;
- ;* Redistribution and use in source and binary forms, with or without modification,
- ;* are permitted provided that the following conditions are met:
- ;* 1. Redistributions of source code must retain the above copyright notice,
- ;* this list of conditions and the following disclaimer.
- ;* 2. Redistributions in binary form must reproduce the above copyright notice,
- ;* this list of conditions and the following disclaimer in the documentation
- ;* and/or other materials provided with the distribution.
- ;* 3. Neither the name of STMicroelectronics nor the names of its contributors
- ;* may be used to endorse or promote products derived from this software
- ;* without specific prior written permission.
- ;*
- ;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- ;* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- ;* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- ;* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- ;* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- ;* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- ;* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- ;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- ;* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- ;* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- ;
- ;*******************************************************************************
- ; Amount of memory (in bytes) allocated for Stack
- ; Tailor this value to your application needs
- ; <h> Stack Configuration
- ; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
- ; </h>
- Stack_Size EQU 0x400 ;定义栈的大小1K
- AREA STACK, NOINIT, READWRITE, ALIGN=3 ;AREA 是定义一个段，此处定义的是栈段，没有初始化的段，可读可写，align是说段的起始地址应该是8的倍数
- Stack_Mem SPACE Stack_Size ;SPACE 是为栈分配空间，开辟栈空间大小为0x400
- __initial_sp ;__initial_sp是个标号，这个标号指向栈的栈顶
- ; <h> Heap Configuration
- ; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
- ; </h>
- Heap_Size EQU 0x200 ;定义堆的大小 512byte
- AREA HEAP, NOINIT, READWRITE, ALIGN=3 ;AREA 是定义一个段，此处定义的是堆段，没有初始化的段，可读可写，8字节对齐
- __heap_base ;堆的起始地址
- Heap_Mem SPACE Heap_Size ;开始分配堆的空间
- __heap_limit ;堆的结束地址
- PRESERVE8
- THUMB
- ; Vector Table Mapped to Address 0 at Reset
- AREA RESET, DATA, READONLY ;此处定义的数据段，数据段放的是中断向量表，只读
- EXPORT __Vectors ;EXPORT在程序中声明一个全局的标号__Vectors，该标号可在其它的文件中引用
- EXPORT __Vectors_End
- EXPORT __Vectors_Size
- ;DCD指令以字为单位分配内存，要求4字节对齐，并要求初始化这些内存。
- ;在向量表中，DCD 分配了一堆内存，并且以 ISR 的入口地址初始化它们。
-
- __Vectors DCD __initial_sp ; Top of Stack 存放__initial_sp，也就是堆栈栈顶的地址
- DCD Reset_Handler ; Reset Handler
- DCD NMI_Handler ; NMI Handler
- DCD HardFault_Handler ; Hard Fault Handler
- DCD MemManage_Handler ; MPU Fault Handler
- DCD BusFault_Handler ; Bus Fault Handler
- DCD UsageFault_Handler ; Usage Fault Handler
- DCD 0 ; Reserved
- DCD 0 ; Reserved
- DCD 0 ; Reserved
- DCD 0 ; Reserved
- DCD SVC_Handler ; SVCall Handler
- DCD DebugMon_Handler ; Debug Monitor Handler
- DCD 0 ; Reserved
- DCD PendSV_Handler ; PendSV Handler
- DCD SysTick_Handler ; SysTick Handler
- ; External Interrupts
- DCD WWDG_IRQHandler ; Window WatchDog
- DCD PVD_IRQHandler ; PVD through EXTI Line detection
- DCD TAMP_STAMP_IRQHandler ; Tamper and TimeStamps through the EXTI line
- DCD RTC_WKUP_IRQHandler ; RTC Wakeup through the EXTI line
- DCD FLASH_IRQHandler ; FLASH
- DCD RCC_IRQHandler ; RCC
- DCD EXTI0_IRQHandler ; EXTI Line0
- DCD EXTI1_IRQHandler ; EXTI Line1
- DCD EXTI2_IRQHandler ; EXTI Line2
- DCD EXTI3_IRQHandler ; EXTI Line3
- DCD EXTI4_IRQHandler ; EXTI Line4
- DCD DMA1_Stream0_IRQHandler ; DMA1 Stream 0
- DCD DMA1_Stream1_IRQHandler ; DMA1 Stream 1
- DCD DMA1_Stream2_IRQHandler ; DMA1 Stream 2
- DCD DMA1_Stream3_IRQHandler ; DMA1 Stream 3
- DCD DMA1_Stream4_IRQHandler ; DMA1 Stream 4
- DCD DMA1_Stream5_IRQHandler ; DMA1 Stream 5
- DCD DMA1_Stream6_IRQHandler ; DMA1 Stream 6
- DCD ADC_IRQHandler ; ADC1, ADC2 and ADC3s
- DCD CAN1_TX_IRQHandler ; CAN1 TX
- DCD CAN1_RX0_IRQHandler ; CAN1 RX0
- DCD CAN1_RX1_IRQHandler ; CAN1 RX1
- DCD CAN1_SCE_IRQHandler ; CAN1 SCE
- DCD EXTI9_5_IRQHandler ; External Line[9:5]s
- DCD TIM1_BRK_TIM9_IRQHandler ; TIM1 Break and TIM9
- DCD TIM1_UP_TIM10_IRQHandler ; TIM1 Update and TIM10
- DCD TIM1_TRG_COM_TIM11_IRQHandler ; TIM1 Trigger and Commutation and TIM11
- DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
- DCD TIM2_IRQHandler ; TIM2
- DCD TIM3_IRQHandler ; TIM3
- DCD TIM4_IRQHandler ; TIM4
- DCD I2C1_EV_IRQHandler ; I2C1 Event
- DCD I2C1_ER_IRQHandler ; I2C1 Error
- DCD I2C2_EV_IRQHandler ; I2C2 Event
- DCD I2C2_ER_IRQHandler ; I2C2 Error
- DCD SPI1_IRQHandler ; SPI1
- DCD SPI2_IRQHandler ; SPI2
- DCD USART1_IRQHandler ; USART1
- DCD USART2_IRQHandler ; USART2
- DCD USART3_IRQHandler ; USART3
- DCD EXTI15_10_IRQHandler ; External Line[15:10]s
- DCD RTC_Alarm_IRQHandler ; RTC Alarm (A and B) through EXTI Line
- DCD OTG_FS_WKUP_IRQHandler ; USB OTG FS Wakeup through EXTI line
- DCD TIM8_BRK_TIM12_IRQHandler ; TIM8 Break and TIM12
- DCD TIM8_UP_TIM13_IRQHandler ; TIM8 Update and TIM13
- DCD TIM8_TRG_COM_TIM14_IRQHandler ; TIM8 Trigger and Commutation and TIM14
- DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare
- DCD DMA1_Stream7_IRQHandler ; DMA1 Stream7
- DCD FMC_IRQHandler ; FMC
- DCD SDIO_IRQHandler ; SDIO
- DCD TIM5_IRQHandler ; TIM5
- DCD SPI3_IRQHandler ; SPI3
- DCD UART4_IRQHandler ; UART4
- DCD UART5_IRQHandler ; UART5
- DCD TIM6_DAC_IRQHandler ; TIM6 and DAC1&2 underrun errors
- DCD TIM7_IRQHandler ; TIM7
- DCD DMA2_Stream0_IRQHandler ; DMA2 Stream 0
- DCD DMA2_Stream1_IRQHandler ; DMA2 Stream 1
- DCD DMA2_Stream2_IRQHandler ; DMA2 Stream 2
- DCD DMA2_Stream3_IRQHandler ; DMA2 Stream 3
- DCD DMA2_Stream4_IRQHandler ; DMA2 Stream 4
- DCD ETH_IRQHandler ; Ethernet
- DCD ETH_WKUP_IRQHandler ; Ethernet Wakeup through EXTI line
- DCD CAN2_TX_IRQHandler ; CAN2 TX
- DCD CAN2_RX0_IRQHandler ; CAN2 RX0
- DCD CAN2_RX1_IRQHandler ; CAN2 RX1
- DCD CAN2_SCE_IRQHandler ; CAN2 SCE
- DCD OTG_FS_IRQHandler ; USB OTG FS
- DCD DMA2_Stream5_IRQHandler ; DMA2 Stream 5
- DCD DMA2_Stream6_IRQHandler ; DMA2 Stream 6
- DCD DMA2_Stream7_IRQHandler ; DMA2 Stream 7
- DCD USART6_IRQHandler ; USART6
- DCD I2C3_EV_IRQHandler ; I2C3 event
- DCD I2C3_ER_IRQHandler ; I2C3 error
- DCD OTG_HS_EP1_OUT_IRQHandler ; USB OTG HS End Point 1 Out
- DCD OTG_HS_EP1_IN_IRQHandler ; USB OTG HS End Point 1 In
- DCD OTG_HS_WKUP_IRQHandler ; USB OTG HS Wakeup through EXTI
- DCD OTG_HS_IRQHandler ; USB OTG HS
- DCD DCMI_IRQHandler ; DCMI
- DCD 0 ; Reserved
- DCD HASH_RNG_IRQHandler ; Hash and Rng
- DCD FPU_IRQHandler ; FPU
-
-
- __Vectors_End
- __Vectors_Size EQU __Vectors_End - __Vectors
- AREA |.text|, CODE, READONLY ;.text 一般代表代码段，这里就是定义一段代码段
- ; Reset handler
- Reset_Handler PROC ;PROC 是子程序定义伪指令。这里就相当于 C语言里定义了一个函数，函数名为 Reset_Handler。
- EXPORT Reset_Handler [WEAK] ;关键字[WEAK] 表示弱定义，如果编译器发现在别处定义了同名的函数，则在链接时用别处的地址进行链接
- IMPORT SystemInit ;;IMPORT则表明后面标号所代表的函数是在其它文件定义的
- IMPORT __main
- LDR R0, =SystemInit ;复位子程序是系统上电后第一个执行的程序，调用 SystemInit 函数初始化系统时钟
- BLX R0
- LDR R0, =__main ;__main 是一个标准的 C 库函数，主要作用是初始化用户堆栈，并在函数的最后调用main 函数去到 C 的世界
- BX R0
- ENDP
- ; Dummy Exception Handlers (infinite loops which can be modified)
- NMI_Handler PROC
- EXPORT NMI_Handler [WEAK]
- B .
- ENDP
- HardFault_Handler\
- PROC
- EXPORT HardFault_Handler [WEAK]
- B .
- ENDP
- MemManage_Handler\
- PROC
- EXPORT MemManage_Handler [WEAK]
- B .
- ENDP
- BusFault_Handler\
- PROC
- EXPORT BusFault_Handler [WEAK]
- B .
- ENDP
- UsageFault_Handler\
- PROC
- EXPORT UsageFault_Handler [WEAK]
- B .
- ENDP
- SVC_Handler PROC
- EXPORT SVC_Handler [WEAK]
- B .
- ENDP
- DebugMon_Handler\
- PROC
- EXPORT DebugMon_Handler [WEAK]
- B .
- ENDP
- PendSV_Handler PROC
- EXPORT PendSV_Handler [WEAK]
- B .
- ENDP
- SysTick_Handler PROC
- EXPORT SysTick_Handler [WEAK]
- B .
- ENDP
- Default_Handler PROC
- EXPORT WWDG_IRQHandler [WEAK]
- EXPORT PVD_IRQHandler [WEAK]
- EXPORT TAMP_STAMP_IRQHandler [WEAK]
- EXPORT RTC_WKUP_IRQHandler [WEAK]
- EXPORT FLASH_IRQHandler [WEAK]
- EXPORT RCC_IRQHandler [WEAK]
- EXPORT EXTI0_IRQHandler [WEAK]
- EXPORT EXTI1_IRQHandler [WEAK]
- EXPORT EXTI2_IRQHandler [WEAK]
- EXPORT EXTI3_IRQHandler [WEAK]
- EXPORT EXTI4_IRQHandler [WEAK]
- EXPORT DMA1_Stream0_IRQHandler [WEAK]
- EXPORT DMA1_Stream1_IRQHandler [WEAK]
- EXPORT DMA1_Stream2_IRQHandler [WEAK]
- EXPORT DMA1_Stream3_IRQHandler [WEAK]
- EXPORT DMA1_Stream4_IRQHandler [WEAK]
- EXPORT DMA1_Stream5_IRQHandler [WEAK]
- EXPORT DMA1_Stream6_IRQHandler [WEAK]
- EXPORT ADC_IRQHandler [WEAK]
- EXPORT CAN1_TX_IRQHandler [WEAK]
- EXPORT CAN1_RX0_IRQHandler [WEAK]
- EXPORT CAN1_RX1_IRQHandler [WEAK]
- EXPORT CAN1_SCE_IRQHandler [WEAK]
- EXPORT EXTI9_5_IRQHandler [WEAK]
- EXPORT TIM1_BRK_TIM9_IRQHandler [WEAK]
- EXPORT TIM1_UP_TIM10_IRQHandler [WEAK]
- EXPORT TIM1_TRG_COM_TIM11_IRQHandler [WEAK]
- EXPORT TIM1_CC_IRQHandler [WEAK]
- EXPORT TIM2_IRQHandler [WEAK]
- EXPORT TIM3_IRQHandler [WEAK]
- EXPORT TIM4_IRQHandler [WEAK]
- EXPORT I2C1_EV_IRQHandler [WEAK]
- EXPORT I2C1_ER_IRQHandler [WEAK]
- EXPORT I2C2_EV_IRQHandler [WEAK]
- EXPORT I2C2_ER_IRQHandler [WEAK]
- EXPORT SPI1_IRQHandler [WEAK]
- EXPORT SPI2_IRQHandler [WEAK]
- EXPORT USART1_IRQHandler [WEAK]
- EXPORT USART2_IRQHandler [WEAK]
- EXPORT USART3_IRQHandler [WEAK]
- EXPORT EXTI15_10_IRQHandler [WEAK]
- EXPORT RTC_Alarm_IRQHandler [WEAK]
- EXPORT OTG_FS_WKUP_IRQHandler [WEAK]
- EXPORT TIM8_BRK_TIM12_IRQHandler [WEAK]
- EXPORT TIM8_UP_TIM13_IRQHandler [WEAK]
- EXPORT TIM8_TRG_COM_TIM14_IRQHandler [WEAK]
- EXPORT TIM8_CC_IRQHandler [WEAK]
- EXPORT DMA1_Stream7_IRQHandler [WEAK]
- EXPORT FMC_IRQHandler [WEAK]
- EXPORT SDIO_IRQHandler [WEAK]
- EXPORT TIM5_IRQHandler [WEAK]
- EXPORT SPI3_IRQHandler [WEAK]
- EXPORT UART4_IRQHandler [WEAK]
- EXPORT UART5_IRQHandler [WEAK]
- EXPORT TIM6_DAC_IRQHandler [WEAK]
- EXPORT TIM7_IRQHandler [WEAK]
- EXPORT DMA2_Stream0_IRQHandler [WEAK]
- EXPORT DMA2_Stream1_IRQHandler [WEAK]
- EXPORT DMA2_Stream2_IRQHandler [WEAK]
- EXPORT DMA2_Stream3_IRQHandler [WEAK]
- EXPORT DMA2_Stream4_IRQHandler [WEAK]
- EXPORT ETH_IRQHandler [WEAK]
- EXPORT ETH_WKUP_IRQHandler [WEAK]
- EXPORT CAN2_TX_IRQHandler [WEAK]
- EXPORT CAN2_RX0_IRQHandler [WEAK]
- EXPORT CAN2_RX1_IRQHandler [WEAK]
- EXPORT CAN2_SCE_IRQHandler [WEAK]
- EXPORT OTG_FS_IRQHandler [WEAK]
- EXPORT DMA2_Stream5_IRQHandler [WEAK]
- EXPORT DMA2_Stream6_IRQHandler [WEAK]
- EXPORT DMA2_Stream7_IRQHandler [WEAK]
- EXPORT USART6_IRQHandler [WEAK]
- EXPORT I2C3_EV_IRQHandler [WEAK]
- EXPORT I2C3_ER_IRQHandler [WEAK]
- EXPORT OTG_HS_EP1_OUT_IRQHandler [WEAK]
- EXPORT OTG_HS_EP1_IN_IRQHandler [WEAK]
- EXPORT OTG_HS_WKUP_IRQHandler [WEAK]
- EXPORT OTG_HS_IRQHandler [WEAK]
- EXPORT DCMI_IRQHandler [WEAK]
- EXPORT HASH_RNG_IRQHandler [WEAK]
- EXPORT FPU_IRQHandler [WEAK]
-
- WWDG_IRQHandler
- PVD_IRQHandler
- TAMP_STAMP_IRQHandler
- RTC_WKUP_IRQHandler
- FLASH_IRQHandler
- RCC_IRQHandler
- EXTI0_IRQHandler
- EXTI1_IRQHandler
- EXTI2_IRQHandler
- EXTI3_IRQHandler
- EXTI4_IRQHandler
- DMA1_Stream0_IRQHandler
- DMA1_Stream1_IRQHandler
- DMA1_Stream2_IRQHandler
- DMA1_Stream3_IRQHandler
- DMA1_Stream4_IRQHandler
- DMA1_Stream5_IRQHandler
- DMA1_Stream6_IRQHandler
- ADC_IRQHandler
- CAN1_TX_IRQHandler
- CAN1_RX0_IRQHandler
- CAN1_RX1_IRQHandler
- CAN1_SCE_IRQHandler
- EXTI9_5_IRQHandler
- TIM1_BRK_TIM9_IRQHandler
- TIM1_UP_TIM10_IRQHandler
- TIM1_TRG_COM_TIM11_IRQHandler
- TIM1_CC_IRQHandler
- TIM2_IRQHandler
- TIM3_IRQHandler
- TIM4_IRQHandler
- I2C1_EV_IRQHandler
- I2C1_ER_IRQHandler
- I2C2_EV_IRQHandler
- I2C2_ER_IRQHandler
- SPI1_IRQHandler
- SPI2_IRQHandler
- USART1_IRQHandler
- USART2_IRQHandler
- USART3_IRQHandler
- EXTI15_10_IRQHandler
- RTC_Alarm_IRQHandler
- OTG_FS_WKUP_IRQHandler
- TIM8_BRK_TIM12_IRQHandler
- TIM8_UP_TIM13_IRQHandler
- TIM8_TRG_COM_TIM14_IRQHandler
- TIM8_CC_IRQHandler
- DMA1_Stream7_IRQHandler
- FMC_IRQHandler
- SDIO_IRQHandler
- TIM5_IRQHandler
- SPI3_IRQHandler
- UART4_IRQHandler
- UART5_IRQHandler
- TIM6_DAC_IRQHandler
- TIM7_IRQHandler
- DMA2_Stream0_IRQHandler
- DMA2_Stream1_IRQHandler
- DMA2_Stream2_IRQHandler
- DMA2_Stream3_IRQHandler
- DMA2_Stream4_IRQHandler
- ETH_IRQHandler
- ETH_WKUP_IRQHandler
- CAN2_TX_IRQHandler
- CAN2_RX0_IRQHandler
- CAN2_RX1_IRQHandler
- CAN2_SCE_IRQHandler
- OTG_FS_IRQHandler
- DMA2_Stream5_IRQHandler
- DMA2_Stream6_IRQHandler
- DMA2_Stream7_IRQHandler
- USART6_IRQHandler
- I2C3_EV_IRQHandler
- I2C3_ER_IRQHandler
- OTG_HS_EP1_OUT_IRQHandler
- OTG_HS_EP1_IN_IRQHandler
- OTG_HS_WKUP_IRQHandler
- OTG_HS_IRQHandler
- DCMI_IRQHandler
- HASH_RNG_IRQHandler
- FPU_IRQHandler
-
- B .
- ENDP
- ALIGN
- ;*******************************************************************************
- ; User Stack and Heap initialization
- ;*******************************************************************************
- IF :DEF:__MICROLIB
-
- EXPORT __initial_sp
- EXPORT __heap_base
- EXPORT __heap_limit
-
- ELSE
-
- IMPORT __use_two_region_memory
- EXPORT __user_initial_stackheap
-
- __user_initial_stackheap
- LDR R0, = Heap_Mem
- LDR R1, =(Stack_Mem + Stack_Size)
- LDR R2, = (Heap_Mem + Heap_Size)
- LDR R3, = Stack_Mem
- BX LR
- ALIGN
- ENDIF
- END
- ;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****
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