STM32库版本:V3.5.0
startup_stm32f10x_hd.s文件模块功能:
;;格式:PROGRAM symbol---其中symbol为分配模块的名字;;开始一个模块;PROGRAM和NAME指令的别名
MODULE ?cstartup ;汇编模块开始
;; Forward declaration of sections.前置 段声明
;;格式:SECTION section :type [flag] [(align)]
;;NOROOT表示如果这个段里的标号(如CSTACK/.intvec等)没引用,则被linker舍弃;ROOT则是一定不舍弃。
;;(1)表示字节对齐数,为2的幂,(2)表示4字节对齐,(3)表示8字节对齐
;;定义各种模式STACK,具体大小、位置是由linker文件(IAR中 .icf)决定的,这些STACK都定义在内部RAM中
SECTION CSTACK:DATA:NOROOT(3) ;CSTACK数据段
;;通常INTVEC段被连接到flash闪存的开始地址,应该在.icf文件中有定义,如stmf10X系列 闪存起始地址:0x08000000
SECTION .intvec:CODE:NOROOT(2) ;.intvec代码段
EXTERN __iar_program_start ;;外部变量声明
EXTERN SystemInit ;SystemInit声明,于外部定义
PUBLIC __vector_table ;;外部可调用;向其他模块输出符号。
DATA
;;中断向量表
__vector_table ;;格式:DCD expr [,expr] … ;Generates 32-bit constants.生成32bit常数
DCD sfe(CSTACK) ;;格式:SFE (section [{+ | -} offset]) 返回section段结束地址,SFB(section)返回section段开始地址;
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 detect
DCD TAMPER_IRQHandler ; Tamper
DCD RTC_IRQHandler ; RTC
DCD FLASH_IRQHandler ; Flash
DCD RCC_IRQHandler ; RCC
DCD EXTI0_IRQHandler ; EXTI Line 0
DCD EXTI1_IRQHandler ; EXTI Line 1
DCD EXTI2_IRQHandler ; EXTI Line 2
DCD EXTI3_IRQHandler ; EXTI Line 3
DCD EXTI4_IRQHandler ; EXTI Line 4
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_2_IRQHandler ; ADC1 & ADC2
DCD USB_HP_CAN1_TX_IRQHandler ; USB High Priority or CAN1 TX
DCD USB_LP_CAN1_RX0_IRQHandler ; USB Low Priority or CAN1 RX0
DCD CAN1_RX1_IRQHandler ; CAN1 RX1
DCD CAN1_SCE_IRQHandler ; CAN1 SCE
DCD EXTI9_5_IRQHandler ; EXTI Line 9..5
DCD TIM1_BRK_IRQHandler ; TIM1 Break
DCD TIM1_UP_IRQHandler ; TIM1 Update
DCD TIM1_TRG_COM_IRQHandler ; TIM1 Trigger and Commutation
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 ; EXTI Line 15..10
DCD RTCAlarm_IRQHandler ; RTC Alarm through EXTI Line
DCD USBWakeUp_IRQHandler ; USB Wakeup from suspend
DCD TIM8_BRK_IRQHandler ; TIM8 Break
DCD TIM8_UP_IRQHandler ; TIM8 Update
DCD TIM8_TRG_COM_IRQHandler ; TIM8 Trigger and Commutation
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare
DCD ADC3_IRQHandler ; ADC3
DCD FSMC_IRQHandler ; FSMC
DCD SDIO_IRQHandler ; SDIO
DCD TIM5_IRQHandler ; TIM5
DCD SPI3_IRQHandler ; SPI3
DCD UART4_IRQHandler ; UART4
DCD UART5_IRQHandler ; UART5
DCD TIM6_IRQHandler ; TIM6
DCD TIM7_IRQHandler ; TIM7
DCD DMA2_Channel1_IRQHandler ; DMA2 Channel1
DCD DMA2_Channel2_IRQHandler ; DMA2 Channel2
DCD DMA2_Channel3_IRQHandler ; DMA2 Channel3
DCD DMA2_Channel4_5_IRQHandler ; DMA2 Channel4 & Channel5
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Default interrupt handlers.
;;
3、
THUMB ;;Mode control directives--模式控制指令
PUBWEAK Reset_Handler ;;标识符(这里是函数名) 弱定义
SECTION .text:CODE:REORDER(2) ;;
Reset_Handler
LDR R0, =SystemInit
BLX R0
LDR R0, =__iar_program_start
BX R0
PUBWEAK NMI_Handler
SECTION .text:CODE:REORDER(1)
NMI_Handler
B NMI_Handler
PUBWEAK HardFault_Handler
SECTION .text:CODE:REORDER(1)
HardFault_Handler
B HardFault_Handler
PUBWEAK MemManage_Handler
SECTION .text:CODE:REORDER(1)
MemManage_Handler
B MemManage_Handler
PUBWEAK BusFault_Handler
SECTION .text:CODE:REORDER(1)
BusFault_Handler
B BusFault_Handler
PUBWEAK UsageFault_Handler
SECTION .text:CODE:REORDER(1)
.................................
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
SECTION section :type [flag] [(align)]
如下:
/*###ICF### Section handled by ICF editor, don't touch! ****/
/*-Editor annotation file-*/
/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
/*-Specials-*/
define symbol __ICFEDIT_intvec_start__ = 0x08000000;/*中断向量表开始地址*/
/*-Memory Regions-*/
/*定义内部FLASH地址 */--/*定义内部RAM地址 */
define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;/*闪存起始地址*/
define symbol __ICFEDIT_region_ROM_end__ = 0x0800FFFF;/*闪存结束地址---flash大小64k*/
define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;/*SRAM起始地址*/
define symbol __ICFEDIT_region_RAM_end__ = 0x20004FFF;/*SRAM结束地址---SRAM大小20k*/
/*-Sizes-*//* 栈和堆大小*/
define symbol __ICFEDIT_size_cstack__ = 0x800; /*栈大小*/
define symbol __ICFEDIT_size_heap__ = 0x200;/*堆大小*/
/**** End of ICF editor section. ###ICF###*/
define memory mem with size = 4G;
define region ROM_region = mem:[from __ICFEDIT_region_ROM_start__ to __ICFEDIT_region_ROM_end__];
define region RAM_region = mem:[from __ICFEDIT_region_RAM_start__ to __ICFEDIT_region_RAM_end__];
define block CSTACK with alignment = 8, size = __ICFEDIT_size_cstack__ { };//CSTACK块属性(8字节对齐、大小__ICFEDIT_size_cstack__)
define block HEAP with alignment = 8, size = __ICFEDIT_size_heap__ { };
/* 下列语句定义所定义地址空间内可完成的操作类型*/
initialize by copy { readwrite };
do not initialize { section .noinit };
place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec }; //__ICFEDIT_intvec_start__赋值给.intvec标识符
place in ROM_region { readonly };
place in RAM_region { readwrite,
block CSTACK, block HEAP };