STM32學習筆記之中斷向量表，MDK程序啟動分析

;//StackConfiguration

;//StackSize(inBytes)<0x0-0xFFFFFFFF:8>

;//

Stack_SizeEQU0x00000200;//定義堆棧大小

AREASTACK,NOINIT,READWRITE,ALIGN=3;//定義一個數(shù)據(jù)段按8字節(jié)對齊

Stack_MemSPACEStack_Size;//保留Stack_Size大小的堆?？臻g

__initial_sp;//標號，代表堆棧頂部地址，后面有用

;//HeapConfiguration

;//HeapSize(inBytes)<0x0-0xFFFFFFFF:8>

;//

Heap_SizeEQU0x00000020;//定義堆空間大小

AREAHEAP,NOINIT,READWRITE,ALIGN=3;//定義一個數(shù)據(jù)段，8字節(jié)對齊

__heap_base

Heap_MemSPACEHeap_Size;//保留Heap_Size的堆空間

__heap_limit;//標號，代表堆末尾地址，后面有用

PRESERVE8;//指示編譯器8字節(jié)對齊

THUMB;//指示編譯器為THUMB指令

;VectorTableMappedtoAddress0atReset

AREARESET,DATA,READONLY;//定義只讀數(shù)據(jù)段，其實放在CODE區(qū)，位于0地址

EXTERNNMIException

EXTERNHardFaultException

EXTERNMemManageException

EXTERNBusFaultException

EXTERNUsageFaultException

EXTERNSVCHandler

EXTERNDebugMonitor

EXTERNPendSVC

EXTERNSysTickHandler;//聲明這些符號在外部定義，同C

;//在××it.c中實現(xiàn)這些函數(shù)，中斷就能自動調(diào)用了

EXPORT__Vectors

__VectorsDCD__initial_sp;TopofStack//Cotex-M要求此處為堆棧頂部地址

DCDReset_Handler;ResetHandler

DCDNMIException;NMIHandler

DCDHardFaultException;HardFaultHandler

DCDMemManageException;MPUFaultHandler

DCDBusFaultException;BusFaultHandler

DCDUsageFaultException;UsageFaultHandler

DCD0;Reserved

DCD0;Reserved

DCD0;Reserved

DCD0;Reserved

DCDSVCHandler;SVCallHandler

DCDDebugMonitor;DebugMonitorHandler

DCD 0 ; Reserved