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ARM 之八 Cortex-M/R 内核启动过程 / 程序启动流程（基于IAR）

發布時間：2024/10/14 编程问答 34 豆豆

生活随笔收集整理的這篇文章主要介紹了 ARM 之八 Cortex-M/R 内核启动过程 / 程序启动流程（基于IAR）小編覺得挺不錯的,現在分享給大家,幫大家做個參考.

??在前面的文章《ARM 之 Cortex-M/R 內核啟動過程 / 程序啟動流程（基于ARMCC）》中已經介紹過了 Cortex-M/R 內核相關內容。這里基于 IAR 的啟動流程與之前的并沒有太大區別，因為這是 Cortex-M/R 內核規定好的。無論是 ARMCC 還是 IAR 都需要遵循內核的規定。區別主要在于初始化的個函數接口不同！
??相比于《ARM 之 Cortex-M/R 內核啟動過程 / 程序啟動流程（基于ARMCC）》 IAR 關于這方面的介紹就少多了，不像 ARM 提供了各種文檔來詳細介紹各個方面！如果想要更深入了解這一部分，建議去 ARM 官網看看其文檔。
??本位主要的內容，來自于 IAR 的官方文檔《IAR C/C++ Development Guide Compiling and Linking》，在翻譯了部分功能的基礎上添加了一些自己的理解！

啟動流程

嵌入式應用程序的執行，分為三個階段：

初始化階段
執行階段
退出階段

初始化階段

??在系統啟動期間，進入 main() 函數之前執行初始化序列。初始化序列處理目標硬件和 C/C++ 運行環境所需的初始化。初始化是在應用程序（CPU 復位）啟動但是進入用戶的 main() 函數之前來執行的。初始化階段可以簡單地分為：

硬件初始化，通常至少初始化堆棧指針。
??硬件初始化通常在系統啟動代碼 cstartup.s 中執行，如果需要，還可以通過用戶提供的額外的低級接口（__low_level_init）來執行用戶自己的代碼。它可能包括重置/啟動其余硬件，設置 CPU 等，以準備軟件 C/C++ 系統初始化。
- 當 CPU 復位時，程序將從系統啟動代碼中的程序入口標簽__iar_program_start處開始執行。
- 堆棧指針初始化為 CSTACK 塊的末尾
- For Arm7/9/11, Cortex-A, and Cortex-R devices, exception stack pointers are initialized to the end of each corresponding section. 對于 Arm7/9/11、Cortex-A 和Cortex-R 器件，異常堆棧指針初始化為每個相應部分的末尾
- The function __low_level_init is called if you defined it, giving the application a chance to perform early initializations.如果用戶定義了函數__low_level_init，則為應用程序提供執行早期初始化的機會。
C/C++ 軟件系統初始化
??通常，此步操作確保在調用 main 函數之前，每個全局（靜態鏈接）的 C/C++ 符號都會收到其正確的初始化值。
- Static and global variables are initialized. That is, zero-initialized variables are cleared and the values of other initialized variables are copied from ROM to RAM memory. This step is skipped if __low_level_init returns zero. 靜態和全局變量初始化。也就是說，清零初始化為零的變量，并將其他初始化變量的值從 ROM 復制到 RAM 存儲器。如果 __low_level_init 返回零，則跳過此步驟。
  ??In Standard C, all static variables—variables that are allocated at a fixed memory address—must be initialized by the runtime system to a known value at application startup. This value is either an explicit value assigned to the variable, or if no value is given, it is cleared to zero. In the compiler, there are exceptions to this rule, for example variables declared __no_init, which are not initialized at all.在標準 C 中，所有靜態變量 - 在固定內存地址分配的變量 - 必須由運行時系統初始化為應用程序啟動時的已知值。此值是分配給變量的顯式值，或者如果沒有給出值，則將其清零。在編譯器中，此規則有例外，例如聲明為 __no_init 的變量，它們根本沒有初始化。
  The compiler generates a specific type of section for each type of variable initialization:編譯器為每種類型的變量初始化生成特定類型的節：
- Static C++ objects are constructed 構造靜態 C++ 對象
- The main function is called, which starts the application. 調用主函數，啟動應用程序。
應用程序初始化
覺就是用戶自己的程序部分。這完全取決于用戶的應用程序。它可以包括設置 RTOS 內核并啟動 RTOS 驅動的應用程序的初始任務。對于裸機應用程序，它可以包括設置各種中斷，初始化通信，初始化設備等。

??對于基于 ROM/flash 的系統，常量和函數已經放在 ROM 中。放置在 RAM 中的所有符號必須在調用 main 函數之前初始化。鏈接器已將可用RAM劃分為變量，堆棧，堆等的不同區域。
??以下序列說明簡要概述了初始化的不同階段。

當應用程序啟動時，系統啟動代碼首先執行硬件初始化，例如初始化棧頂指針以指向預定義堆棧區域的末尾：

然后，清除應該零初始化的存儲器，換句話說，用零填充：

通常，這些數據指的是那些初始化為零的數據; 例如，變量聲明為int i = 0;

對于已經初始化的數據，例如，聲明的數據int i = 6;，初始化器從ROM復制到RAM：

最終，main()函數被調用：

執行階段

??The software of an embedded application is typically implemented as a loop which is either interrupt-driven or uses polling for controlling external interaction or internal events. For an interrupt-driven system, the interrupts are typically initialized at the beginning of the main function.嵌入式應用程序的軟件通常實現為循環，該循環可以是中斷驅動的，也可以使用輪詢來控制外部交互或內部事件。對于中斷驅動的系統，中斷通常在主函數的開頭初始化。
??In a system with real-time behavior and where responsiveness is critical, a multi-task system might be required. This means that your application software should be complemented with a real-time operating system. In this case, the RTOS and the different tasks must also be initialized at the beginning of the main function. 在具有實時行為且響應性至關重要的系統中，可能需要多任務系統。這意味著您的應用程序軟件應該配備實時操作系統。在這種情況下，還必須在main函數的開頭初始化RTOS和不同的任務。

退出階段

??通常，嵌入式應用程序的執行永遠不會結束。如果推出了，則必須定義正確的結束行為。
??要以受控方式終止應用程序，請調用標準C庫函數之一 exit，_Exit，quick_exit 或 abort，或從main 返回。如果從main 返回，則自動執行 exit 函數，這意味著調用靜態和全局變量的 C++ 析構函數（僅限C ++）并關閉所有打開的文件。
??當然，如果程序邏輯不正確，應用程序可能會以不受控制的異常方式終止 - 系統崩潰。

應用程序可以通過兩種不同方式正常終止：

Return from the main function
Call the exit function.

??因為 C 標準聲明這兩個方法應該是等價的，所以如果main()函數返回，系統啟動代碼會調用exit() 函數。傳遞給exit()函數的參數是main()的返回值。
默認退出函數用C語言編寫。它調用一個小的匯編程序函數_exit，它將：

Call functions registered to be executed when the application ends. This includes C++ destructors for static and global variables, and functions registered with the standard function atexit. See also Setting up the atexit limit, page 110.
Close all open files
Call __exit
When __exit is reached, stop the system.

??應用程序也可以通過調用 abort，_Exit 或 quick_exit 函數退出。中止函數只是調用__exit來暫停系統，并且不執行任何類型的清理。The _Exit function is equivalent to the abort function, except for the fact that _Exit takes an argument for passing exit status information._Exit函數等同于 abort 函數，事實上，_Exit接受一個參數來傳遞退出狀態信息。The quick_exit function is equivalent to the _Exit function, except that it calls each function passed to at_quick_exit before calling __exit. quick_exit函數等同于__Exit函數，只是它在調用__exit之前會刁艷紅每個傳遞給_quick_exit的函數。
??如果您希望應用程序在退出時執行任何額外操作，例如重置系統（如果使用atexit是不夠的），您可以編寫自己的__exit（int）函數實現。

啟動相關函數

??在基于 ARM 的啟動流程中，我們介紹了各啟動相關的函數全部位于 ARM 編譯套件的庫文件中。IAR 則直接提供了相關函數的源代碼，源碼使用匯編語言編寫！
??處理啟動和終止的代碼位于源文件cstartup.s，cmain.s，cexit.s中，這些文件位于arm\src\lib\arm 或 arm\src\lib\thumb目錄中（針對 Cortex-M的 thumb 指令）和位于arm\src\lib\runtime目錄中的low_level_init.c。其中，arm\src\lib\arm下面的文件如下圖所示：

關于 Thumb 指令的這里我們暫不說明

前面我們已經分析過，第一個需要調用的函數是__iar_program_start，該函數就位于cstartup.s這個文件中！

啟動示例分析

下面我們以STM32F373CB片子為例，看看其在 IAR 中調試時的匯編代碼。直接進調試模式，注意：需要將設置 -> 調試器 -> Run to main 去掉，如下圖：

然后直接進入調試模式，首先看看終端向量表部分：

符合前面文章介紹的 Cortex-M/R內核的規定！接著我們看到的就是復位中斷的服務函數

0x8003558: 0x04000401 DC32 0x4000401 (67109889)0x800355c: 0x08000c77 DC32 USER_DLT645ReqAddr0x8003560: 0x00000000 DC32 0x0 (0)0x8003564: 0x04a01101 DC32 0x4a01101 (77598977)0x8003568: 0x08000ca1 DC32 USER_DLT645ReqUpGrade0x800356c: 0x00000000 DC32 0x0 (0)LDR R0, =SystemInit Reset_Handler:0x8003570: 0x4801 LDR.N R0, [PC, #0x4] ; SystemInitBLX R00x8003572: 0x4780 BLX R0 ; 這里跳轉到 SystemInit 這是ST提供的LDR R0, =__iar_program_start0x8003574: 0x4801 LDR.N R0, [PC, #0x4] ; __iar_program_startBX R00x8003576: 0x4700 BX R0 ; 這里跳轉到 __iar_program_startSECTION .text:CODE:REORDER(1)0x8003578: 0x08003195 DC32 SystemInitSECTION .text:CODE:REORDER(1)0x800357c: 0x08003581 DC32 __iar_program_start __iar_program_start:0x8003580: 0xf3af 0x8000 NOP.W0x8003584: 0xf3af 0x8000 NOP.W0x8003588: 0xf7ff 0xffc2 BL ?main ; 0x8003510 重點就在這個函數，0x800358c: 0x11111111 DC32 0x11111111 (286331153)0x8003590: 0x00001111 DC32 0x1111 (4369)0x8003594: 0x90 DC8 144 ; '.'0x8003595: 0x00 DC8 0 ; '.'0x8003596: 0x00 DC8 0 ; '.'0x8003597: 0x00 DC8 0 ; '.'B NMI_Handler0x8003598: 0xf7ff 0xbf6a B.W NMI_Handler ; 0x8003470; 后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！

從上面的匯編代碼可以看出，__iar_program_start 跳轉到了一個叫做?main的符號處，代碼如下：

0x80034c8: 0xb510 PUSH {R4, LR}0x80034ca: 0x4907 LDR.N R1, [PC, #0x1c] ; 0x8 (8)0x80034cc: 0x4479 ADD R1, R1, PC0x80034ce: 0x3118 ADDS R1, R1, #24 ; 0x180x80034d0: 0x4c06 LDR.N R4, [PC, #0x18] ; 0x24 (36)0x80034d2: 0x447c ADD R4, R4, PC0x80034d4: 0x3416 ADDS R4, R4, #22 ; 0x160x80034d6: 0xe004 B.N 0x80034e20x80034d8: 0x680a LDR R2, [R1]0x80034da: 0x1d08 ADDS R0, R1, #40x80034dc: 0x4411 ADD R1, R1, R20x80034de: 0x4788 BLX R10x80034e0: 0x4601 MOV R1, R00x80034e2: 0x42a1 CMP R1, R40x80034e4: 0xd1f8 BNE.N 0x80034d80x80034e6: 0xbd10 POP {R4, PC}0x80034e8: 0x00000008 DC32 0x8 (8)0x80034ec: 0x00000024 DC32 0x24 (36) Region$$Table$$Base:0x80034f0: 0xffffdc57 DC32 0xffffdc57 (-9129)0x80034f4: 0x0000085c DC32 0x85c (2140)0x80034f8: 0x20000588 DC32 Uart1Info0x80034fc: 0x00000000 DC32 0x0 (0)0x8003500: 0xffffdadf DC32 0xffffdadf (-9505)0x8003504: 0x000001b8 DC32 0x1b8 (440)0x8003508: 0x0000010c DC32 0x10c (268)0x800350c: 0x20000000 DC32 UpGradeCtrl ?main: Region$$Table$$Limit: __cmain:0x8003510: 0xf000 0xf80d BL __low_level_init ; 0x800352e0x8003514: 0x2800 CMP R0, #00x8003516: 0xd001 BEQ.N _call_main ; 0x800351c0x8003518: 0xf7ff 0xffd6 BL __iar_data_init3 ; 0x80034c8 _call_main:0x800351c: 0xf3af 0x8000 NOP.W0x8003520: 0x2000 MOVS R0, #00x8003522: 0xf3af 0x8000 NOP.W0x8003526: 0xf7ff 0xff2b BL main ; 0x8003380 _main:0x800352a: 0xf000 0xf802 BL exit ; 0x8003532 __low_level_init:0x800352e: 0x2001 MOVS R0, #10x8003530: 0x4770 BX LR exit:0x8003532: 0xf000 0xb801 B.W _exit ; 0x80035380x8003536: 0x0000 MOVS R0, R0 _exit:0x8003538: 0x4607 MOV R7, R00x800353a: 0x4638 MOV R0, R70x800353c: 0xf000 0xf802 BL __exit ; 0x80035440x8003540: 0xe7fb B.N 0x800353a0x8003542: 0x0000 MOVS R0, R0 __exit:0x8003544: 0xb580 PUSH {R7, LR}0x8003546: 0xf3af 0x8000 NOP.W0x800354a: 0x4a02 LDR.N R2, [PC, #0x8] ; 0x20026 (131110)0x800354c: 0x0011 MOVS R1, R20x800354e: 0x2018 MOVS R0, #24 ; 0x180x8003550: 0xbeab BKPT #0xab0x8003552: 0xe7fb B.N 0x800354c0x8003554: 0x00020026 DC32 0x20026 (131110) ; 后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！后面的省略！

里面有詳細的函數調用關系！

啟動文件

目前，多數 MCU 廠商都提供一個啟動文件。當然，編程者也可以自己編寫啟動文件，具體編寫要求ARM的網站上都有相關文檔進行說明。下面分析一下 STM32 啟動文件startup_stm32f37x.s，具體看里面的注釋。

;/******************** (C) COPYRIGHT 2012 STMicroelectronics ******************** ;* File Name : startup_stm32f37x.s ;* Author : MCD Application Team ;* Version : V1.0.0 ;* Date : 20-September-2012 ;* Description : STM32F37x Devices vector table for EWARM toolchain. ;* This module performs: ;* - Set the initial SP ;* - Set the initial PC == iar_program_start, ;* - Set the vector table entries with the exceptions ISR ;* address. ;* After Reset the Cortex-M4 processor is in Thread mode, ;* priority is Privileged, and the Stack is set to Main. ;******************************************************************************* ; @attention ; ; Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); ; You may not use this file except in compliance with the License. ; You may obtain a copy of the License at: ; ; http://www.st.com/software_license_agreement_liberty_v2 ; ; Unless required by applicable law or agreed to in writing, software ; distributed under the License is distributed on an "AS IS" BASIS, ; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ; See the License for the specific language governing permissions and ; limitations under the License. ; ;******************************************************************************* ; ; ; The modules in this file are included in the libraries, and may be replaced ; by any user-defined modules that define the PUBLIC symbol _program_start or ; a user defined start symbol. ; To override the cstartup defined in the library, simply add your modified ; version to the workbench project. ; ; The vector table is normally located at address 0. ; When debugging in RAM, it can be located in RAM, aligned to at least 2^6. ; The name "__vector_table" has special meaning for C-SPY: ; it is where the SP start value is found, and the NVIC vector ; table register (VTOR) is initialized to this address if != 0. ; ; Cortex-M version ;MODULE ?cstartup;; Forward declaration of sections.SECTION CSTACK:DATA:NOROOT(3)SECTION .intvec:CODE:NOROOT(2)EXTERN __iar_program_startEXTERN SystemInitPUBLIC __vector_tableDATA __vector_tableDCD sfe(CSTACK)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 TAMPER_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_TS_IRQHandler ; EXTI Line2 and Touch Sense controller DCD EXTI3_IRQHandler ; EXTI Line3 DCD EXTI4_IRQHandler ; EXTI Line4 DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1 DCD DMA1_Channel2_IRQHandler ; DMA1 Channel 2 DCD DMA1_Channel3_IRQHandler ; DMA1 Channel 3 DCD DMA1_Channel4_IRQHandler ; DMA1 Channel 4 DCD DMA1_Channel5_IRQHandler ; DMA1 Channel 5 DCD DMA1_Channel6_IRQHandler ; DMA1 Channel 6 DCD DMA1_Channel7_IRQHandler ; DMA1 Channel 7 DCD ADC1_IRQHandler ; ADC1 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 TIM15_IRQHandler ; TIM15 DCD TIM16_IRQHandler ; TIM16 DCD TIM17_IRQHandler ; TIM17DCD TIM18_DAC2_IRQHandler ; TIM18 and DAC2 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 CEC_IRQHandler ; CEC DCD TIM12_IRQHandler ; TIM12 DCD TIM13_IRQHandler ; TIM13 DCD TIM14_IRQHandler ; TIM14DCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD TIM5_IRQHandler ; TIM5 DCD SPI3_IRQHandler ; SPI3 DCD 0 ; ReservedDCD 0 ; Reserved DCD TIM6_DAC1_IRQHandler ; TIM6 and DAC1 Channel1 & channel2 DCD TIM7_IRQHandler ; TIM7 DCD DMA2_Channel1_IRQHandler ; DMA2 Channel 1 DCD DMA2_Channel2_IRQHandler ; DMA2 Channel 2 DCD DMA2_Channel3_IRQHandler ; DMA2 Channel 3 DCD DMA2_Channel4_IRQHandler ; DMA2 Channel 4 DCD DMA2_Channel5_IRQHandler ; DMA2 Channel 5 DCD SDADC1_IRQHandler ; SDADC1 DCD SDADC2_IRQHandler ; SDADC2 DCD SDADC3_IRQHandler ; SDADC3 DCD COMP_IRQHandler ; COMP DCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; ReservedDCD 0 ; Reserved DCD USB_HP_IRQHandler ; USB High Priority DCD USB_LP_IRQHandler ; USB Low Priority DCD USBWakeUp_IRQHandler ; USB Wakeup DCD 0 ; Reserved DCD TIM19_IRQHandler ; TIM19DCD 0 ; Reserved DCD 0 ; ReservedDCD FPU_IRQHandler ; FPU ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; Default interrupt handlers. ;;THUMBPUBWEAK Reset_HandlerSECTION .text:CODE:REORDER(2) Reset_HandlerLDR R0, =SystemInitBLX R0LDR R0, =__iar_program_startBX R0PUBWEAK NMI_HandlerSECTION .text:CODE:REORDER(1) NMI_HandlerB NMI_HandlerPUBWEAK HardFault_HandlerSECTION .text:CODE:REORDER(1) HardFault_HandlerB HardFault_HandlerPUBWEAK MemManage_HandlerSECTION .text:CODE:REORDER(1) MemManage_HandlerB MemManage_HandlerPUBWEAK BusFault_HandlerSECTION .text:CODE:REORDER(1) BusFault_HandlerB BusFault_HandlerPUBWEAK UsageFault_HandlerSECTION .text:CODE:REORDER(1) UsageFault_HandlerB UsageFault_HandlerPUBWEAK SVC_HandlerSECTION .text:CODE:REORDER(1) SVC_HandlerB SVC_HandlerPUBWEAK DebugMon_HandlerSECTION .text:CODE:REORDER(1) DebugMon_HandlerB DebugMon_HandlerPUBWEAK PendSV_HandlerSECTION .text:CODE:REORDER(1) PendSV_HandlerB PendSV_HandlerPUBWEAK SysTick_HandlerSECTION .text:CODE:REORDER(1) SysTick_HandlerB SysTick_HandlerPUBWEAK WWDG_IRQHandlerSECTION .text:CODE:REORDER(1) WWDG_IRQHandler B WWDG_IRQHandlerPUBWEAK PVD_IRQHandlerSECTION .text:CODE:REORDER(1) PVD_IRQHandler B PVD_IRQHandlerPUBWEAK TAMPER_STAMP_IRQHandlerSECTION .text:CODE:REORDER(1) TAMPER_STAMP_IRQHandler B TAMPER_STAMP_IRQHandlerPUBWEAK RTC_WKUP_IRQHandlerSECTION .text:CODE:REORDER(1) RTC_WKUP_IRQHandler B RTC_WKUP_IRQHandlerPUBWEAK FLASH_IRQHandlerSECTION .text:CODE:REORDER(1) FLASH_IRQHandler B FLASH_IRQHandlerPUBWEAK RCC_IRQHandlerSECTION .text:CODE:REORDER(1) RCC_IRQHandler B RCC_IRQHandlerPUBWEAK EXTI0_IRQHandlerSECTION .text:CODE:REORDER(1) EXTI0_IRQHandler B EXTI0_IRQHandlerPUBWEAK EXTI1_IRQHandlerSECTION .text:CODE:REORDER(1) EXTI1_IRQHandler B EXTI1_IRQHandlerPUBWEAK EXTI2_TS_IRQHandlerSECTION .text:CODE:REORDER(1) EXTI2_TS_IRQHandler B EXTI2_TS_IRQHandlerPUBWEAK EXTI3_IRQHandlerSECTION .text:CODE:REORDER(1) EXTI3_IRQHandlerB EXTI3_IRQHandlerPUBWEAK EXTI4_IRQHandlerSECTION .text:CODE:REORDER(1) EXTI4_IRQHandler B EXTI4_IRQHandlerPUBWEAK DMA1_Channel1_IRQHandlerSECTION .text:CODE:REORDER(1) DMA1_Channel1_IRQHandler B DMA1_Channel1_IRQHandlerPUBWEAK DMA1_Channel2_IRQHandlerSECTION .text:CODE:REORDER(1) DMA1_Channel2_IRQHandler B DMA1_Channel2_IRQHandlerPUBWEAK DMA1_Channel3_IRQHandlerSECTION .text:CODE:REORDER(1) DMA1_Channel3_IRQHandler B DMA1_Channel3_IRQHandlerPUBWEAK DMA1_Channel4_IRQHandlerSECTION .text:CODE:REORDER(1) DMA1_Channel4_IRQHandler B DMA1_Channel4_IRQHandlerPUBWEAK DMA1_Channel5_IRQHandlerSECTION .text:CODE:REORDER(1) DMA1_Channel5_IRQHandler B DMA1_Channel5_IRQHandlerPUBWEAK DMA1_Channel6_IRQHandlerSECTION .text:CODE:REORDER(1) DMA1_Channel6_IRQHandler B DMA1_Channel6_IRQHandlerPUBWEAK DMA1_Channel7_IRQHandlerSECTION .text:CODE:REORDER(1) DMA1_Channel7_IRQHandler B DMA1_Channel7_IRQHandlerPUBWEAK ADC1_IRQHandlerSECTION .text:CODE:REORDER(1) ADC1_IRQHandler B ADC1_IRQHandlerPUBWEAK CAN1_TX_IRQHandlerSECTION .text:CODE:REORDER(1) CAN1_TX_IRQHandler B CAN1_TX_IRQHandlerPUBWEAK CAN1_RX0_IRQHandlerSECTION .text:CODE:REORDER(1) CAN1_RX0_IRQHandler B CAN1_RX0_IRQHandlerPUBWEAK CAN1_RX1_IRQHandlerSECTION .text:CODE:REORDER(1) CAN1_RX1_IRQHandler B CAN1_RX1_IRQHandlerPUBWEAK CAN1_SCE_IRQHandlerSECTION .text:CODE:REORDER(1) CAN1_SCE_IRQHandler B CAN1_SCE_IRQHandlerPUBWEAK EXTI9_5_IRQHandlerSECTION .text:CODE:REORDER(1) EXTI9_5_IRQHandler B EXTI9_5_IRQHandlerPUBWEAK TIM15_IRQHandlerSECTION .text:CODE:REORDER(1) TIM15_IRQHandler B TIM15_IRQHandlerPUBWEAK TIM16_IRQHandlerSECTION .text:CODE:REORDER(1) TIM16_IRQHandler B TIM16_IRQHandlerPUBWEAK TIM17_IRQHandlerSECTION .text:CODE:REORDER(1) TIM17_IRQHandler B TIM17_IRQHandlerPUBWEAK TIM18_DAC2_IRQHandlerSECTION .text:CODE:REORDER(1) TIM18_DAC2_IRQHandler B TIM18_DAC2_IRQHandlerPUBWEAK TIM2_IRQHandlerSECTION .text:CODE:REORDER(1) TIM2_IRQHandler B TIM2_IRQHandlerPUBWEAK TIM3_IRQHandlerSECTION .text:CODE:REORDER(1) TIM3_IRQHandler B TIM3_IRQHandlerPUBWEAK TIM4_IRQHandlerSECTION .text:CODE:REORDER(1) TIM4_IRQHandler B TIM4_IRQHandlerPUBWEAK I2C1_EV_IRQHandlerSECTION .text:CODE:REORDER(1) I2C1_EV_IRQHandler B I2C1_EV_IRQHandlerPUBWEAK I2C1_ER_IRQHandlerSECTION .text:CODE:REORDER(1) I2C1_ER_IRQHandler B I2C1_ER_IRQHandlerPUBWEAK I2C2_EV_IRQHandlerSECTION .text:CODE:REORDER(1) I2C2_EV_IRQHandler B I2C2_EV_IRQHandlerPUBWEAK I2C2_ER_IRQHandlerSECTION .text:CODE:REORDER(1) I2C2_ER_IRQHandler B I2C2_ER_IRQHandlerPUBWEAK SPI1_IRQHandlerSECTION .text:CODE:REORDER(1) SPI1_IRQHandler B SPI1_IRQHandlerPUBWEAK SPI2_IRQHandlerSECTION .text:CODE:REORDER(1) SPI2_IRQHandler B SPI2_IRQHandlerPUBWEAK USART1_IRQHandlerSECTION .text:CODE:REORDER(1) USART1_IRQHandler B USART1_IRQHandlerPUBWEAK USART2_IRQHandlerSECTION .text:CODE:REORDER(1) USART2_IRQHandler B USART2_IRQHandlerPUBWEAK USART3_IRQHandlerSECTION .text:CODE:REORDER(1) USART3_IRQHandler B USART3_IRQHandlerPUBWEAK EXTI15_10_IRQHandlerSECTION .text:CODE:REORDER(1) EXTI15_10_IRQHandler B EXTI15_10_IRQHandlerPUBWEAK RTC_Alarm_IRQHandlerSECTION .text:CODE:REORDER(1) RTC_Alarm_IRQHandler B RTC_Alarm_IRQHandlerPUBWEAK CEC_IRQHandlerSECTION .text:CODE:REORDER(1) CEC_IRQHandler B CEC_IRQHandlerPUBWEAK TIM12_IRQHandlerSECTION .text:CODE:REORDER(1) TIM12_IRQHandler B TIM12_IRQHandlerPUBWEAK TIM13_IRQHandlerSECTION .text:CODE:REORDER(1) TIM13_IRQHandler B TIM13_IRQHandlerPUBWEAK TIM14_IRQHandlerSECTION .text:CODE:REORDER(1) TIM14_IRQHandler B TIM14_IRQHandlerPUBWEAK TIM5_IRQHandlerSECTION .text:CODE:REORDER(1) TIM5_IRQHandler B TIM5_IRQHandlerPUBWEAK SPI3_IRQHandlerSECTION .text:CODE:REORDER(1) SPI3_IRQHandler B SPI3_IRQHandlerPUBWEAK TIM6_DAC1_IRQHandlerSECTION .text:CODE:REORDER(1) TIM6_DAC1_IRQHandler B TIM6_DAC1_IRQHandlerPUBWEAK TIM7_IRQHandlerSECTION .text:CODE:REORDER(1) TIM7_IRQHandler B TIM7_IRQHandlerPUBWEAK DMA2_Channel1_IRQHandlerSECTION .text:CODE:REORDER(1) DMA2_Channel1_IRQHandler B DMA2_Channel1_IRQHandlerPUBWEAK DMA2_Channel2_IRQHandlerSECTION .text:CODE:REORDER(1) DMA2_Channel2_IRQHandler B DMA2_Channel2_IRQHandlerPUBWEAK DMA2_Channel3_IRQHandlerSECTION .text:CODE:REORDER(1) DMA2_Channel3_IRQHandler B DMA2_Channel3_IRQHandlerPUBWEAK DMA2_Channel4_IRQHandlerSECTION .text:CODE:REORDER(1) DMA2_Channel4_IRQHandler B DMA2_Channel4_IRQHandlerPUBWEAK DMA2_Channel5_IRQHandlerSECTION .text:CODE:REORDER(1) DMA2_Channel5_IRQHandler B DMA2_Channel5_IRQHandlerPUBWEAK SDADC1_IRQHandlerSECTION .text:CODE:REORDER(1) SDADC1_IRQHandler B SDADC1_IRQHandlerPUBWEAK SDADC2_IRQHandlerSECTION .text:CODE:REORDER(1) SDADC2_IRQHandler B SDADC2_IRQHandlerPUBWEAK SDADC3_IRQHandlerSECTION .text:CODE:REORDER(1) SDADC3_IRQHandler B SDADC3_IRQHandlerPUBWEAK COMP_IRQHandlerSECTION .text:CODE:REORDER(1) COMP_IRQHandler B COMP_IRQHandlerPUBWEAK USB_HP_IRQHandlerSECTION .text:CODE:REORDER(1) USB_HP_IRQHandler B USB_HP_IRQHandlerPUBWEAK USB_LP_IRQHandlerSECTION .text:CODE:REORDER(1) USB_LP_IRQHandler B USB_LP_IRQHandlerPUBWEAK USBWakeUp_IRQHandlerSECTION .text:CODE:REORDER(1) USBWakeUp_IRQHandler B USBWakeUp_IRQHandlerPUBWEAK TIM19_IRQHandlerSECTION .text:CODE:REORDER(1) TIM19_IRQHandler B TIM19_IRQHandlerPUBWEAK FPU_IRQHandlerSECTION .text:CODE:REORDER(1) FPU_IRQHandler B FPU_IRQHandlerEND ;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****

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