tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC13XX/TOOLCHAIN_GCC_ARM/startup_LPC13xx.s

   1 /* File: startup_ARMCM3.s
   2  * Purpose: startup file for Cortex-M3/M4 devices. Should use with
   3  *   GNU Tools for ARM Embedded Processors
   4  * Version: V1.1
   5  * Date: 17 June 2011
   6  *
   7  * Copyright (C) 2011 ARM Limited. All rights reserved.
   8  * ARM Limited (ARM) is supplying this software for use with Cortex-M3/M4
   9  * processor based microcontrollers.  This file can be freely distributed
  10  * within development tools that are supporting such ARM based processors.
  11  *
  12  * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
  13  * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
  15  * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
  16  * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  17  */
  18     .syntax unified
  19     .arch armv7-m
  20
  21 /* Memory Model
  22    The HEAP starts at the end of the DATA section and grows upward.
  23
  24    The STACK starts at the end of the RAM and grows downward.
  25
  26    The HEAP and stack STACK are only checked at compile time:
  27    (DATA_SIZE + HEAP_SIZE + STACK_SIZE) < RAM_SIZE
  28
  29    This is just a check for the bare minimum for the Heap+Stack area before
  30    aborting compilation, it is not the run time limit:
  31    Heap_Size + Stack_Size = 0x80 + 0x80 = 0x100
  32  */
  33     .section .stack
  34     .align 3
  35 #ifdef __STACK_SIZE
  36     .equ    Stack_Size, __STACK_SIZE
  37 #else
  38     .equ    Stack_Size, 0xc00
  39 #endif
  40     .globl    __StackTop
  41     .globl    __StackLimit
  42 __StackLimit:
  43     .space    Stack_Size
  44     .size __StackLimit, . - __StackLimit
  45 __StackTop:
  46     .size __StackTop, . - __StackTop
  47
  48     .section .heap
  49     .align 3
  50 #ifdef __HEAP_SIZE
  51     .equ    Heap_Size, __HEAP_SIZE
  52 #else
  53     .equ    Heap_Size, 0x800
  54 #endif
  55     .globl    __HeapBase
  56     .globl    __HeapLimit
  57 __HeapBase:
  58     .space    Heap_Size
  59     .size __HeapBase, . - __HeapBase
  60 __HeapLimit:
  61     .size __HeapLimit, . - __HeapLimit
  62
  63     .section .isr_vector
  64     .align 2
  65     .globl __isr_vector
  66 __isr_vector:
  67     .long    __StackTop            /* Top of Stack */
  68     .long    Reset_Handler         /* Reset Handler */
  69     .long    NMI_Handler           /* NMI Handler */
  70     .long    HardFault_Handler     /* Hard Fault Handler */
  71     .long    MemManage_Handler     /* MPU Fault Handler */
  72     .long    BusFault_Handler      /* Bus Fault Handler */
  73     .long    UsageFault_Handler    /* Usage Fault Handler */
  74     .long    0                     /* Reserved */
  75     .long    0                     /* Reserved */
  76     .long    0                     /* Reserved */
  77     .long    0                     /* Reserved */
  78     .long    SVC_Handler           /* SVCall Handler */
  79     .long    DebugMon_Handler      /* Debug Monitor Handler */
  80     .long    0                     /* Reserved */
  81     .long    PendSV_Handler        /* PendSV Handler */
  82     .long    SysTick_Handler       /* SysTick Handler */
  83
  84
  85     .long    PIN_INT0_Handler      /* All GPIO pin can be routed to PIN_INTx */
  86     .long    PIN_INT1_Handler
  87     .long    PIN_INT2_Handler
  88     .long    PIN_INT3_Handler
  89     .long    PIN_INT4_Handler
  90     .long    PIN_INT5_Handler
  91     .long    PIN_INT6_Handler
  92     .long    PIN_INT7_Handler
  93     .long    GINT0_Handler
  94     .long    GINT1_Handler         /* PIO0 (0:7) */
  95     .long    0
  96     .long    0
  97     .long    OSTIMER_Handler
  98     .long    0
  99     .long    SSP1_Handler          /* SSP1 */
 100     .long    I2C_Handler           /* I2C */
 101     .long    CT16B0_Handler        /* 16-bit Timer0 */
 102     .long    CT16B1_Handler        /* 16-bit Timer1 */
 103     .long    CT32B0_Handler        /* 32-bit Timer0 */
 104     .long    CT32B1_Handler        /* 32-bit Timer1 */
 105     .long    SSP0_Handler          /* SSP0 */
 106     .long    USART_Handler         /* USART */
 107     .long    USB_Handler           /* USB IRQ */
 108     .long    USB_FIQHandler        /* USB FIQ */
 109     .long    ADC_Handler           /* A/D Converter */
 110     .long    WDT_Handler           /* Watchdog timer */
 111     .long    BOD_Handler           /* Brown Out Detect */
 112     .long    FMC_Handler           /* IP2111 Flash Memory Controller */
 113     .long    OSCFAIL_Handler       /* OSC FAIL */
 114     .long    PVTCIRCUIT_Handler    /* PVT CIRCUIT */
 115     .long    USBWakeup_Handler     /* USB wake up */
 116     .long    0
 117
 118     .size    __isr_vector, . - __isr_vector
 119
 120     .text
 121     .thumb
 122     .thumb_func
 123     .align 2
 124     .globl    Reset_Handler
 125     .type    Reset_Handler, %function
 126 Reset_Handler:
 127 /*     Loop to copy data from read only memory to RAM. The ranges
 128  *      of copy from/to are specified by following symbols evaluated in
 129  *      linker script.
 130  *      _etext: End of code section, i.e., begin of data sections to copy from.
 131  *      __data_start__/__data_end__: RAM address range that data should be
 132  *      copied to. Both must be aligned to 4 bytes boundary.  */
 133
 134     ldr    r1, =__etext
 135     ldr    r2, =__data_start__
 136     ldr    r3, =__data_end__
 137
 138 .Lflash_to_ram_loop:
 139     cmp     r2, r3
 140     ittt    lt
 141     ldrlt   r0, [r1], #4
 142     strlt   r0, [r2], #4
 143     blt    .Lflash_to_ram_loop
 144
 145     ldr    r0, =SystemInit
 146     blx    r0
 147     ldr    r0, =_start
 148     bx    r0
 149     .pool
 150     .size Reset_Handler, . - Reset_Handler
 151
 152     .text
 153 /*    Macro to define default handlers. Default handler
 154  *    will be weak symbol and just dead loops. They can be
 155  *    overwritten by other handlers */
 156     .macro    def_default_handler    handler_name
 157     .align 1
 158     .thumb_func
 159     .weak    \handler_name
 160     .type    \handler_name, %function
 161 \handler_name :
 162     b    .
 163     .size    \handler_name, . - \handler_name
 164     .endm
 165
 166     def_default_handler    NMI_Handler
 167     def_default_handler    HardFault_Handler
 168     def_default_handler    MemManage_Handler
 169     def_default_handler    BusFault_Handler
 170     def_default_handler    UsageFault_Handler
 171     def_default_handler    SVC_Handler
 172     def_default_handler    DebugMon_Handler
 173     def_default_handler    PendSV_Handler
 174     def_default_handler    SysTick_Handler
 175     def_default_handler    Default_Handler
 176
 177     .macro    def_irq_default_handler    handler_name
 178     .weak     \handler_name
 179     .set      \handler_name, Default_Handler
 180     .endm
 181
 182     def_irq_default_handler    PIN_INT0_Handler
 183     def_irq_default_handler    PIN_INT1_Handler
 184     def_irq_default_handler    PIN_INT2_Handler
 185     def_irq_default_handler    PIN_INT3_Handler
 186     def_irq_default_handler    PIN_INT4_Handler
 187     def_irq_default_handler    PIN_INT5_Handler
 188     def_irq_default_handler    PIN_INT6_Handler
 189     def_irq_default_handler    PIN_INT7_Handler
 190     def_irq_default_handler    GINT0_Handler
 191     def_irq_default_handler    GINT1_Handler
 192     def_irq_default_handler    OSTIMER_Handler
 193     def_irq_default_handler    SSP1_Handler
 194     def_irq_default_handler    I2C_Handler
 195     def_irq_default_handler    CT16B0_Handler
 196     def_irq_default_handler    CT16B1_Handler
 197     def_irq_default_handler    CT32B0_Handler
 198     def_irq_default_handler    CT32B1_Handler
 199     def_irq_default_handler    SSP0_Handler
 200     def_irq_default_handler    USART_Handler
 201     def_irq_default_handler    USB_Handler
 202     def_irq_default_handler    USB_FIQHandler
 203     def_irq_default_handler    ADC_Handler
 204     def_irq_default_handler    WDT_Handler
 205     def_irq_default_handler    BOD_Handler
 206     def_irq_default_handler    FMC_Handler
 207     def_irq_default_handler    OSCFAIL_Handler
 208     def_irq_default_handler    PVTCIRCUIT_Handler
 209     def_irq_default_handler    USBWakeup_Handler
 210     def_irq_default_handler    DEF_IRQHandler
 211
 212     .end
 213