stm32学习笔记---STM32F4知识
2024-06-06 17:52:02
一、STM32F4存储器映射
1、Cortex-M4存储器映射
存储器本身没有地址，给存储器分配地址的过程叫存储器映射
注：被控单元的FLASH，RAM和各类片上外设，这些功能部件共同排列在一个 4GB 的地址空间内，每个外设都有自己独有地址。我们在编程的时候，可以通过他们的地址找到他们，然后来操作他们
Cortex-m4处理器的4GB存储空间从架构上被分为多个区域，每个区域对应一种推荐用途
2、STM32F407存储器映射
注意：外设起始地址：0x4000 0000
3、STM32F4 存储器映像和外设寄存器编址
参看STM32F4XX中文参考手册2.3节
4、如何访问寄存器
以GPIOA寄存器组为例、如何读写ODR寄存器？
已知GPIOA的起始地址为0x40020000
各寄存器的偏移地址如下：
MODER; /*Address offset: 0x00 */
OTYPER; /*Address offset: 0x04 */
OSPEEDR; /*Address offset: 0x08 */
PUPDR; /*Address offset: 0x0C */
IDR; /*Address offset: 0x10 */
ODR; /*Address offset: 0x14 */
BSRR; /*Address offset: 0x18 */
LCKR; /*Address offset: 0x1C */
4.1、第一种方式
对地址进行宏定义
#define GPIOA_BASE ( (unsigned int ) 0x40020000 )
#define GPIOA_ODR ( GPIOA_BASE + 0x14 )
读操作
val = *(unsigned int *) GPIOA_ODR ;
写操作
*(unsigned int *) GPIOA_ODR = val ;
改进
#define GPIOA_ODR （ *(unsigned int *) ( GPIOA_BASE + 0x14 )）
val = GPIOA_ODR ; //读
GPIOA_ODR = val ; //写
4.2、第二种方式
用结构体封装寄存器
用上面的方法去定义地址，还是稍显繁琐、根据我们每一类外设对应的寄存器组地址都是连续增长的特点，我们引入 C 语言中的结构体语法对寄存器进行封装。
typedef struct {uint32_t MODER; /*Address offset: 0x00 */uint32_t OTYPER; /*Address offset: 0x04 */uint32_t OSPEEDR; /*Address offset: 0x08 */uint32_t PUPDR; /*Address offset: 0x0C */uint32_t IDR; /*Address offset: 0x10 */uint32_t ODR; /*Address offset: 0x14 */uint32_t BSRR; /*Address offset: 0x18 */uint32_t LCKR; /*Address offset: 0x1C */
} GPIO_TypeDef;#define GPIOA_BASE ( (unsigned int ) 0x40020000 )
#define GPIOA ((GPIO_TypeDef *) GPIOA_BASE)
注：我们访问GPIOA的控制寄存器组时、直接使用宏定义好 GPIO_TypeDef 类型的指针，而且指针指向 GPIOA端口的首地址，这样我们直接用宏GPIOA访问改外设的任意一个寄存器
“stm32f407xx.h”已经封装了所有的外设
GPIOA->MODER = 0x20 ;
GPIOA->OSPEEDR = 0x16 ;
二、STM32F4启动流程详解
1、STM32F4启动流程
注：Cortex-M4 的程序映像通常是从地址 0x00000000 开始的、系统复位后，处理器首先读取向量表中的前两个字（8 个字节），第一个字存入 MSP（主栈指针），第二个字为复位向量，它表示程序执行的起始地址（复位处理）
注：存放地址要为奇数（0x08000c59）
1.1、STM32F4的启动模式
STM32的flash起始地址为0x08000000。CPU怎么从0x00000000处运行的？
- 根据启动模式的不同，用户闪存、系统闪存和SRAM都可以映射到0x0的低端地址；
- 我们的板可以通过拨码开关来选择启动方式
2、C程序的内存排布
堆、栈是什么？为什么要有堆栈？
STM32开发主要是C语言，C语言的运行必须要堆栈的环境，函数的调用，传参数要放到内存里，保存起来，函数执行时要去获取参数，需要一片空间（栈空间）。因此我需要在程序的一开始设置好堆栈，以便运行C函数
注：
栈的作用是用于局部变量，函数调用，函数形参等的开销
堆主要用来动态内存的分配（c语言要用到malloc）
3、程序的组成
为什么堆栈要分配到SRAM中？在FLASH中可以吗？
SRAM读写速度快掉电易失，NOR FLASH读快，写非常慢掉电不易失，因为栈的数据是可读可写的，需要写，就放在SRAM中。
程序的加载
RO Size= Code + ROData （程序占用FLASH空间的大小）
RW Size=RW Data + ZI Data （运行时程序占用RAM空间的大小）
ROM Size=Code + RO Data + RWData （烧写时程序占用FLASH空间的大小）
三、STM32F407启动文件分析
主要功能：
- 初始化堆栈指针 SP;
- 初始化程序计数器指针 PC;
- 设置堆、栈的大小;
- 设置中断向量表的入口地址;
- 调用 SystemIni() 函数配置 STM32 的系统时钟。
- 设置 C库的分支入口“__main”（最终用来调用 main 函数）;
;******************** (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1KAREA 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 512byteAREA 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PRESERVE8THUMB; Vector Table Mapped to Address 0 at ResetAREA 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_EndEXPORT __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 HandlerDCD NMI_Handler ; NMI HandlerDCD HardFault_Handler ; Hard Fault HandlerDCD MemManage_Handler ; MPU Fault HandlerDCD BusFault_Handler ; Bus Fault HandlerDCD UsageFault_Handler ; Usage Fault HandlerDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD SVC_Handler ; SVCall HandlerDCD DebugMon_Handler ; Debug Monitor HandlerDCD 0 ; ReservedDCD PendSV_Handler ; PendSV HandlerDCD SysTick_Handler ; SysTick Handler; External InterruptsDCD 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 TIM11DCD 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 TIM14DCD 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 RngDCD FPU_IRQHandler ; FPU__Vectors_End__Vectors_Size EQU __Vectors_End - __VectorsAREA |.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 __mainLDR 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 R0LDR 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 R0ENDP; Dummy Exception Handlers (infinite loops which can be modified)NMI_Handler PROCEXPORT NMI_Handler [WEAK]B .ENDP
HardFault_Handler\PROCEXPORT HardFault_Handler [WEAK]B .ENDP
MemManage_Handler\PROCEXPORT MemManage_Handler [WEAK]B .ENDP
BusFault_Handler\PROCEXPORT BusFault_Handler [WEAK]B .ENDP
UsageFault_Handler\PROCEXPORT UsageFault_Handler [WEAK]B .ENDP
SVC_Handler PROCEXPORT SVC_Handler [WEAK]B .ENDP
DebugMon_Handler\PROCEXPORT DebugMon_Handler [WEAK]B .ENDP
PendSV_Handler PROCEXPORT PendSV_Handler [WEAK]B .ENDP
SysTick_Handler PROCEXPORT SysTick_Handler [WEAK]B .ENDPDefault_Handler PROCEXPORT 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 .ENDPALIGN;*******************************************************************************
; User Stack and Heap initialization
;*******************************************************************************IF :DEF:__MICROLIBEXPORT __initial_spEXPORT __heap_baseEXPORT __heap_limitELSEIMPORT __use_two_region_memoryEXPORT __user_initial_stackheap__user_initial_stackheapLDR R0, = Heap_MemLDR R1, =(Stack_Mem + Stack_Size)LDR R2, = (Heap_Mem + Heap_Size)LDR R3, = Stack_MemBX LRALIGNENDIFEND;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****
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