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   1 ;/**************************************************************************//**
   2 ; * @file     startup_ARMCM4.s
   3 ; * @brief    CMSIS Cortex-M4 Core Device Startup File
   4 ; *           for CM4 Device Series
   5 ; * @version  V1.04
   6 ; * @date     14. January 2011
   7 ; *------- <<< Use Configuration Wizard in Context Menu >>> ------------------
   8 ; *
   9 ; ******************************************************************************/
  10
  11
  12 ; <h> Stack Configuration
  13 ;   <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
  14 ; </h>
  15
  16 Stack_Size      EQU     0x00000400
  17
  18                 AREA    STACK, NOINIT, READWRITE, ALIGN=3
  19 Stack_Mem       SPACE   Stack_Size
  20 __initial_sp
  21
  22
  23 ; <h> Heap Configuration
  24 ;   <o>  Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
  25 ; </h>
  26
  27 Heap_Size       EQU     0x00000000
  28
  29                 AREA    HEAP, NOINIT, READWRITE, ALIGN=3
  30 __heap_base
  31 Heap_Mem        SPACE   Heap_Size
  32 __heap_limit
  33
  34
  35                 PRESERVE8
  36                 THUMB
  37
  38
  39 ; Vector Table Mapped to Address 0 at Reset
  40
  41                 AREA    RESET, DATA, READONLY
  42                 EXPORT  __Vectors
  43                 EXPORT  __Vectors_End
  44                 EXPORT  __Vectors_Size
  45
  46 __Vectors       DCD     __initial_sp              ; Top of Stack
  47                 DCD     Reset_Handler             ; Reset Handler
  48                 DCD     NMI_Handler               ; NMI Handler
  49                 DCD     HardFault_Handler         ; Hard Fault Handler
  50                 DCD     MemManage_Handler         ; MPU Fault Handler
  51                 DCD     BusFault_Handler          ; Bus Fault Handler
  52                 DCD     UsageFault_Handler        ; Usage Fault Handler
  53                 DCD     0                         ; Reserved
  54                 DCD     0                         ; Reserved
  55                 DCD     0                         ; Reserved
  56                 DCD     0                         ; Reserved
  57                 DCD     SVC_Handler               ; SVCall Handler
  58                 DCD     DebugMon_Handler          ; Debug Monitor Handler
  59                 DCD     0                         ; Reserved
  60                 DCD     PendSV_Handler            ; PendSV Handler
  61                 DCD     SysTick_Handler           ; SysTick Handler
  62
  63                 ; External Interrupts
  64                 DCD     DEF_IRQHandler            ;  0: Default
  65 __Vectors_End
  66
  67 __Vectors_Size  EQU     __Vectors_End - __Vectors
  68
  69                 AREA    |.text|, CODE, READONLY
  70
  71
  72 ; Reset Handler
  73
  74 Reset_Handler   PROC
  75                 EXPORT  Reset_Handler             [WEAK]
  76                 IMPORT  SystemInit
  77                 IMPORT  __main
  78                 LDR     R0, =SystemInit
  79                 BLX     R0
  80                 LDR     R0, =__main
  81                 BX      R0
  82                 ENDP
  83
  84
  85 ; Dummy Exception Handlers (infinite loops which can be modified)
  86
  87 NMI_Handler     PROC
  88                 EXPORT  NMI_Handler               [WEAK]
  89                 B       .
  90                 ENDP
  91 HardFault_Handler\
  92                 PROC
  93                 EXPORT  HardFault_Handler         [WEAK]
  94                 B       .
  95                 ENDP
  96 MemManage_Handler\
  97                 PROC
  98                 EXPORT  MemManage_Handler         [WEAK]
  99                 B       .
 100                 ENDP
 101 BusFault_Handler\
 102                 PROC
 103                 EXPORT  BusFault_Handler          [WEAK]
 104                 B       .
 105                 ENDP
 106 UsageFault_Handler\
 107                 PROC
 108                 EXPORT  UsageFault_Handler        [WEAK]
 109                 B       .
 110                 ENDP
 111 SVC_Handler     PROC
 112                 EXPORT  SVC_Handler               [WEAK]
 113                 B       .
 114                 ENDP
 115 DebugMon_Handler\
 116                 PROC
 117                 EXPORT  DebugMon_Handler          [WEAK]
 118                 B       .
 119                 ENDP
 120 PendSV_Handler  PROC
 121                 EXPORT  PendSV_Handler            [WEAK]
 122                 B       .
 123                 ENDP
 124 SysTick_Handler PROC
 125                 EXPORT  SysTick_Handler           [WEAK]
 126                 B       .
 127                 ENDP
 128
 129 Default_Handler PROC
 130                 EXPORT  DEF_IRQHandler            [WEAK]
 131 DEF_IRQHandler
 132                 B       .
 133                 ENDP
 134
 135
 136                 ALIGN
 137
 138
 139 ; User Initial Stack & Heap
 140
 141                 IF      :DEF:__MICROLIB
 142
 143                 EXPORT  __initial_sp
 144                 EXPORT  __heap_base
 145                 EXPORT  __heap_limit
 146
 147                 ELSE
 148
 149                 IMPORT  __use_two_region_memory
 150                 EXPORT  __user_initial_stackheap
 151 __user_initial_stackheap
 152
 153                 LDR     R0, =  Heap_Mem
 154                 LDR     R1, =(Stack_Mem + Stack_Size)
 155                 LDR     R2, = (Heap_Mem +  Heap_Size)
 156                 LDR     R3, = Stack_Mem
 157                 BX      LR
 158
 159                 ALIGN
 160
 161                 ENDIF
 162
 163
 164                 END