tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_NXP/TARGET_LPC176X/TOOLCHAIN_GCC_ARM/startup_LPC17xx.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     /* External interrupts */
  85     .long   WDT_IRQHandler              /* 16: Watchdog Timer               */
  86     .long   TIMER0_IRQHandler           /* 17: Timer0                       */
  87     .long   TIMER1_IRQHandler           /* 18: Timer1                       */
  88     .long   TIMER2_IRQHandler           /* 19: Timer2                       */
  89     .long   TIMER3_IRQHandler           /* 20: Timer3                       */
  90     .long   UART0_IRQHandler            /* 21: UART0                        */
  91     .long   UART1_IRQHandler            /* 22: UART1                        */
  92     .long   UART2_IRQHandler            /* 23: UART2                        */
  93     .long   UART3_IRQHandler            /* 24: UART3                        */
  94     .long   PWM1_IRQHandler             /* 25: PWM1                         */
  95     .long   I2C0_IRQHandler             /* 26: I2C0                         */
  96     .long   I2C1_IRQHandler             /* 27: I2C1                         */
  97     .long   I2C2_IRQHandler             /* 28: I2C2                         */
  98     .long   SPI_IRQHandler              /* 29: SPI                          */
  99     .long   SSP0_IRQHandler             /* 30: SSP0                         */
 100     .long   SSP1_IRQHandler             /* 31: SSP1                         */
 101     .long   PLL0_IRQHandler             /* 32: PLL0 Lock (Main PLL)         */
 102     .long   RTC_IRQHandler              /* 33: Real Time Clock              */
 103     .long   EINT0_IRQHandler            /* 34: External Interrupt 0         */
 104     .long   EINT1_IRQHandler            /* 35: External Interrupt 1         */
 105     .long   EINT2_IRQHandler            /* 36: External Interrupt 2         */
 106     .long   EINT3_IRQHandler            /* 37: External Interrupt 3         */
 107     .long   ADC_IRQHandler              /* 38: A/D Converter                */
 108     .long   BOD_IRQHandler              /* 39: Brown-Out Detect             */
 109     .long   USB_IRQHandler              /* 40: USB                          */
 110     .long   CAN_IRQHandler              /* 41: CAN                          */
 111     .long   DMA_IRQHandler              /* 42: General Purpose DMA          */
 112     .long   I2S_IRQHandler              /* 43: I2S                          */
 113     .long   ENET_IRQHandler             /* 44: Ethernet                     */
 114     .long   RIT_IRQHandler              /* 45: Repetitive Interrupt Timer   */
 115     .long   MCPWM_IRQHandler            /* 46: Motor Control PWM            */
 116     .long   QEI_IRQHandler              /* 47: Quadrature Encoder Interface */
 117     .long   PLL1_IRQHandler             /* 48: PLL1 Lock (USB PLL)          */
 118     .long   USBActivity_IRQHandler      /* 49: USB Activity                 */
 119     .long   CANActivity_IRQHandler      /* 50: CAN Activity                 */
 120
 121     .size    __isr_vector, . - __isr_vector
 122
 123     .text
 124     .thumb
 125     .thumb_func
 126     .align 2
 127     .globl    Reset_Handler
 128     .type    Reset_Handler, %function
 129 Reset_Handler:
 130 /*     Loop to copy data from read only memory to RAM. The ranges
 131  *      of copy from/to are specified by following symbols evaluated in
 132  *      linker script.
 133  *      _etext: End of code section, i.e., begin of data sections to copy from.
 134  *      __data_start__/__data_end__: RAM address range that data should be
 135  *      copied to. Both must be aligned to 4 bytes boundary.  */
 136
 137     ldr    r1, =__etext
 138     ldr    r2, =__data_start__
 139     ldr    r3, =__data_end__
 140
 141 .Lflash_to_ram_loop:
 142     cmp     r2, r3
 143     ittt    lt
 144     ldrlt   r0, [r1], #4
 145     strlt   r0, [r2], #4
 146     blt    .Lflash_to_ram_loop
 147
 148     ldr    r0, =SystemInit
 149     blx    r0
 150     ldr    r0, =_start
 151     bx    r0
 152     .pool
 153     .size Reset_Handler, . - Reset_Handler
 154
 155     .text
 156 /*    Macro to define default handlers. Default handler
 157  *    will be weak symbol and just dead loops. They can be
 158  *    overwritten by other handlers */
 159     .macro    def_default_handler    handler_name
 160     .align 1
 161     .thumb_func
 162     .weak    \handler_name
 163     .type    \handler_name, %function
 164 \handler_name :
 165     b    .
 166     .size    \handler_name, . - \handler_name
 167     .endm
 168
 169     def_default_handler    NMI_Handler
 170     def_default_handler    HardFault_Handler
 171     def_default_handler    MemManage_Handler
 172     def_default_handler    BusFault_Handler
 173     def_default_handler    UsageFault_Handler
 174     def_default_handler    SVC_Handler
 175     def_default_handler    DebugMon_Handler
 176     def_default_handler    PendSV_Handler
 177     def_default_handler    SysTick_Handler
 178     def_default_handler    Default_Handler
 179
 180     .macro    def_irq_default_handler    handler_name
 181     .weak     \handler_name
 182     .set      \handler_name, Default_Handler
 183     .endm
 184
 185     def_irq_default_handler     WDT_IRQHandler
 186     def_irq_default_handler     TIMER0_IRQHandler
 187     def_irq_default_handler     TIMER1_IRQHandler
 188     def_irq_default_handler     TIMER2_IRQHandler
 189     def_irq_default_handler     TIMER3_IRQHandler
 190     def_irq_default_handler     UART0_IRQHandler
 191     def_irq_default_handler     UART1_IRQHandler
 192     def_irq_default_handler     UART2_IRQHandler
 193     def_irq_default_handler     UART3_IRQHandler
 194     def_irq_default_handler     PWM1_IRQHandler
 195     def_irq_default_handler     I2C0_IRQHandler
 196     def_irq_default_handler     I2C1_IRQHandler
 197     def_irq_default_handler     I2C2_IRQHandler
 198     def_irq_default_handler     SPI_IRQHandler
 199     def_irq_default_handler     SSP0_IRQHandler
 200     def_irq_default_handler     SSP1_IRQHandler
 201     def_irq_default_handler     PLL0_IRQHandler
 202     def_irq_default_handler     RTC_IRQHandler
 203     def_irq_default_handler     EINT0_IRQHandler
 204     def_irq_default_handler     EINT1_IRQHandler
 205     def_irq_default_handler     EINT2_IRQHandler
 206     def_irq_default_handler     EINT3_IRQHandler
 207     def_irq_default_handler     ADC_IRQHandler
 208     def_irq_default_handler     BOD_IRQHandler
 209     def_irq_default_handler     USB_IRQHandler
 210     def_irq_default_handler     CAN_IRQHandler
 211     def_irq_default_handler     DMA_IRQHandler
 212     def_irq_default_handler     I2S_IRQHandler
 213     def_irq_default_handler     ENET_IRQHandler
 214     def_irq_default_handler     RIT_IRQHandler
 215     def_irq_default_handler     MCPWM_IRQHandler
 216     def_irq_default_handler     QEI_IRQHandler
 217     def_irq_default_handler     PLL1_IRQHandler
 218     def_irq_default_handler     USBActivity_IRQHandler
 219     def_irq_default_handler     CANActivity_IRQHandler
 220     def_irq_default_handler     DEF_IRQHandler
 221
 222     .end
 223