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   1 /**************************************************************************//**
   2  * @file     startup_ARMCM0.s
   3  * @brief    CMSIS Cortex-M0 Core Device Startup File
   4  *           for CM0 Device Series
   5  * @version  V1.04
   6  * @date     14. January 2011
   7  *------- <<< Use Configuration Wizard in Context Menu >>> ------------------
   8  *
   9  ******************************************************************************/
  10
  11 /*****************************************************************************/
  12 /* Version: CodeSourcery Sourcery G++ Lite (with CS3)                        */
  13 /*****************************************************************************/
  14
  15
  16 /*
  17 // <h> Stack Configuration
  18 //   <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
  19 // </h>
  20 */
  21
  22     .equ    Stack_Size, 0x00000100
  23     .section ".stack", "w"
  24     .align  3
  25     .globl  __cs3_stack_mem
  26     .globl  __cs3_stack_size
  27 __cs3_stack_mem:
  28     .if     Stack_Size
  29     .space  Stack_Size
  30     .endif
  31     .size   __cs3_stack_mem,  . - __cs3_stack_mem
  32     .set    __cs3_stack_size, . - __cs3_stack_mem
  33
  34
  35 /*
  36 // <h> Heap Configuration
  37 //   <o>  Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
  38 // </h>
  39 */
  40
  41     .equ    Heap_Size,  0x00001000
  42
  43     .section ".heap", "w"
  44     .align  3
  45     .globl  __cs3_heap_start
  46     .globl  __cs3_heap_end
  47 __cs3_heap_start:
  48     .if     Heap_Size
  49     .space  Heap_Size
  50     .endif
  51 __cs3_heap_end:
  52
  53
  54 /* Vector Table */
  55
  56     .section ".cs3.interrupt_vector"
  57     .globl  __cs3_interrupt_vector_cortex_m
  58     .type   __cs3_interrupt_vector_cortex_m, %object
  59
  60 __cs3_interrupt_vector_cortex_m:
  61     .long   __cs3_stack                 /* Top of Stack                 */
  62     .long   __cs3_reset                 /* Reset Handler                */
  63     .long   NMI_Handler                 /* NMI Handler                  */
  64     .long   HardFault_Handler           /* Hard Fault Handler           */
  65     .long   0                           /* Reserved                     */
  66     .long   0                           /* Reserved                     */
  67     .long   0                           /* Reserved                     */
  68     .long   0                           /* Reserved                     */
  69     .long   0                           /* Reserved                     */
  70     .long   0                           /* Reserved                     */
  71     .long   0                           /* Reserved                     */
  72     .long   SVC_Handler                 /* SVCall Handler               */
  73     .long   0                           /* Reserved                     */
  74     .long   0                           /* Reserved                     */
  75     .long   PendSV_Handler              /* PendSV Handler               */
  76     .long   SysTick_Handler             /* SysTick Handler              */
  77
  78     /* External Interrupts */
  79     .long   DEF_IRQHandler              /*  0: Default                  */
  80
  81
  82     .size   __cs3_interrupt_vector_cortex_m, . - __cs3_interrupt_vector_cortex_m
  83
  84
  85     .thumb
  86
  87
  88 /* Reset Handler */
  89
  90     .section .cs3.reset,"x",%progbits
  91     .thumb_func
  92     .globl  __cs3_reset_cortex_m
  93     .type   __cs3_reset_cortex_m, %function
  94 __cs3_reset_cortex_m:
  95     .fnstart
  96     LDR     R0, =SystemInit
  97     BLX     R0
  98     LDR     R0,=_start
  99     BX      R0
 100     .pool
 101     .cantunwind
 102     .fnend
 103     .size   __cs3_reset_cortex_m,.-__cs3_reset_cortex_m
 104
 105     .section ".text"
 106
 107 /* Exception Handlers */
 108
 109     .weak   NMI_Handler
 110     .type   NMI_Handler, %function
 111 NMI_Handler:
 112     B       .
 113     .size   NMI_Handler, . - NMI_Handler
 114
 115     .weak   HardFault_Handler
 116     .type   HardFault_Handler, %function
 117 HardFault_Handler:
 118     B       .
 119     .size   HardFault_Handler, . - HardFault_Handler
 120
 121     .weak   SVC_Handler
 122     .type   SVC_Handler, %function
 123 SVC_Handler:
 124     B       .
 125     .size   SVC_Handler, . - SVC_Handler
 126
 127     .weak   PendSV_Handler
 128     .type   PendSV_Handler, %function
 129 PendSV_Handler:
 130     B       .
 131     .size   PendSV_Handler, . - PendSV_Handler
 132
 133     .weak   SysTick_Handler
 134     .type   SysTick_Handler, %function
 135 SysTick_Handler:
 136     B       .
 137     .size   SysTick_Handler, . - SysTick_Handler
 138
 139
 140 /* IRQ Handlers */
 141
 142     .globl  Default_Handler
 143     .type   Default_Handler, %function
 144 Default_Handler:
 145     B       .
 146     .size   Default_Handler, . - Default_Handler
 147
 148     .macro  IRQ handler
 149     .weak   \handler
 150     .set    \handler, Default_Handler
 151     .endm
 152
 153     IRQ     DEF_IRQHandler
 154
 155     .end