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targets/cmsis/TARGET_NXP/TARGET_LPC82X/TARGET_LPC824/TOOLCHAIN_GCC_ARM/startup_LPC824.S@636:b0d178e9fa10, 2016-07-07 (annotated)
- Committer:
- lzbpli
- Date:
- Thu Jul 07 06:48:59 2016 +0000
- Revision:
- 636:b0d178e9fa10
- Parent:
- 577:15494b56c2f3
l053
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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mbed_official | 365:7ced7d9d5ffe | 1 | /* File: startup_ARMCM0.S |
mbed_official | 365:7ced7d9d5ffe | 2 | * Purpose: startup file for Cortex-M0 devices. Should use with |
mbed_official | 365:7ced7d9d5ffe | 3 | * GCC for ARM Embedded Processors |
mbed_official | 365:7ced7d9d5ffe | 4 | * Version: V1.2 |
mbed_official | 365:7ced7d9d5ffe | 5 | * Date: 15 Nov 2011 |
mbed_official | 365:7ced7d9d5ffe | 6 | * |
mbed_official | 365:7ced7d9d5ffe | 7 | * Copyright (c) 2011, ARM Limited |
mbed_official | 365:7ced7d9d5ffe | 8 | * All rights reserved. |
mbed_official | 365:7ced7d9d5ffe | 9 | * |
mbed_official | 365:7ced7d9d5ffe | 10 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 365:7ced7d9d5ffe | 11 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 365:7ced7d9d5ffe | 12 | * Redistributions of source code must retain the above copyright |
mbed_official | 365:7ced7d9d5ffe | 13 | notice, this list of conditions and the following disclaimer. |
mbed_official | 365:7ced7d9d5ffe | 14 | * Redistributions in binary form must reproduce the above copyright |
mbed_official | 365:7ced7d9d5ffe | 15 | notice, this list of conditions and the following disclaimer in the |
mbed_official | 365:7ced7d9d5ffe | 16 | documentation and/or other materials provided with the distribution. |
mbed_official | 365:7ced7d9d5ffe | 17 | * Neither the name of the ARM Limited nor the |
mbed_official | 365:7ced7d9d5ffe | 18 | names of its contributors may be used to endorse or promote products |
mbed_official | 365:7ced7d9d5ffe | 19 | derived from this software without specific prior written permission. |
mbed_official | 365:7ced7d9d5ffe | 20 | * |
mbed_official | 365:7ced7d9d5ffe | 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
mbed_official | 365:7ced7d9d5ffe | 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
mbed_official | 365:7ced7d9d5ffe | 23 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 365:7ced7d9d5ffe | 24 | * DISCLAIMED. IN NO EVENT SHALL ARM LIMITED BE LIABLE FOR ANY |
mbed_official | 365:7ced7d9d5ffe | 25 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
mbed_official | 365:7ced7d9d5ffe | 26 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
mbed_official | 365:7ced7d9d5ffe | 27 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
mbed_official | 365:7ced7d9d5ffe | 28 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
mbed_official | 365:7ced7d9d5ffe | 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
mbed_official | 365:7ced7d9d5ffe | 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 365:7ced7d9d5ffe | 31 | */ |
mbed_official | 365:7ced7d9d5ffe | 32 | .syntax unified |
mbed_official | 365:7ced7d9d5ffe | 33 | .arch armv6-m |
mbed_official | 365:7ced7d9d5ffe | 34 | |
mbed_official | 365:7ced7d9d5ffe | 35 | /* Memory Model |
mbed_official | 365:7ced7d9d5ffe | 36 | The HEAP starts at the end of the DATA section and grows upward. |
mbed_official | 365:7ced7d9d5ffe | 37 | |
mbed_official | 365:7ced7d9d5ffe | 38 | The STACK starts at the end of the RAM and grows downward. |
mbed_official | 365:7ced7d9d5ffe | 39 | |
mbed_official | 365:7ced7d9d5ffe | 40 | The HEAP and stack STACK are only checked at compile time: |
mbed_official | 365:7ced7d9d5ffe | 41 | (DATA_SIZE + HEAP_SIZE + STACK_SIZE) < RAM_SIZE |
mbed_official | 365:7ced7d9d5ffe | 42 | |
mbed_official | 365:7ced7d9d5ffe | 43 | This is just a check for the bare minimum for the Heap+Stack area before |
mbed_official | 365:7ced7d9d5ffe | 44 | aborting compilation, it is not the run time limit: |
mbed_official | 365:7ced7d9d5ffe | 45 | Heap_Size + Stack_Size = 0x80 + 0x80 = 0x100 |
mbed_official | 365:7ced7d9d5ffe | 46 | */ |
mbed_official | 365:7ced7d9d5ffe | 47 | .section .stack |
mbed_official | 365:7ced7d9d5ffe | 48 | .align 3 |
mbed_official | 365:7ced7d9d5ffe | 49 | #ifdef __STACK_SIZE |
mbed_official | 365:7ced7d9d5ffe | 50 | .equ Stack_Size, __STACK_SIZE |
mbed_official | 365:7ced7d9d5ffe | 51 | #else |
mbed_official | 365:7ced7d9d5ffe | 52 | .equ Stack_Size, 0x80 |
mbed_official | 365:7ced7d9d5ffe | 53 | #endif |
mbed_official | 365:7ced7d9d5ffe | 54 | .globl __StackTop |
mbed_official | 365:7ced7d9d5ffe | 55 | .globl __StackLimit |
mbed_official | 365:7ced7d9d5ffe | 56 | __StackLimit: |
mbed_official | 365:7ced7d9d5ffe | 57 | .space Stack_Size |
mbed_official | 365:7ced7d9d5ffe | 58 | .size __StackLimit, . - __StackLimit |
mbed_official | 365:7ced7d9d5ffe | 59 | __StackTop: |
mbed_official | 365:7ced7d9d5ffe | 60 | .size __StackTop, . - __StackTop |
mbed_official | 365:7ced7d9d5ffe | 61 | |
mbed_official | 365:7ced7d9d5ffe | 62 | .section .heap |
mbed_official | 365:7ced7d9d5ffe | 63 | .align 3 |
mbed_official | 365:7ced7d9d5ffe | 64 | #ifdef __HEAP_SIZE |
mbed_official | 365:7ced7d9d5ffe | 65 | .equ Heap_Size, __HEAP_SIZE |
mbed_official | 365:7ced7d9d5ffe | 66 | #else |
mbed_official | 365:7ced7d9d5ffe | 67 | .equ Heap_Size, 0x80 |
mbed_official | 365:7ced7d9d5ffe | 68 | #endif |
mbed_official | 365:7ced7d9d5ffe | 69 | .globl __HeapBase |
mbed_official | 365:7ced7d9d5ffe | 70 | .globl __HeapLimit |
mbed_official | 365:7ced7d9d5ffe | 71 | __HeapBase: |
mbed_official | 365:7ced7d9d5ffe | 72 | .space Heap_Size |
mbed_official | 365:7ced7d9d5ffe | 73 | .size __HeapBase, . - __HeapBase |
mbed_official | 365:7ced7d9d5ffe | 74 | __HeapLimit: |
mbed_official | 365:7ced7d9d5ffe | 75 | .size __HeapLimit, . - __HeapLimit |
mbed_official | 365:7ced7d9d5ffe | 76 | |
mbed_official | 365:7ced7d9d5ffe | 77 | .section .isr_vector |
mbed_official | 365:7ced7d9d5ffe | 78 | .align 2 |
mbed_official | 365:7ced7d9d5ffe | 79 | .globl __isr_vector |
mbed_official | 365:7ced7d9d5ffe | 80 | __isr_vector: |
mbed_official | 365:7ced7d9d5ffe | 81 | .long __StackTop /* Top of Stack */ |
mbed_official | 365:7ced7d9d5ffe | 82 | .long Reset_Handler /* Reset Handler */ |
mbed_official | 365:7ced7d9d5ffe | 83 | .long NMI_Handler /* NMI Handler */ |
mbed_official | 365:7ced7d9d5ffe | 84 | .long HardFault_Handler /* Hard Fault Handler */ |
mbed_official | 365:7ced7d9d5ffe | 85 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 86 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 87 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 88 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 89 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 90 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 91 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 92 | .long SVC_Handler /* SVCall Handler */ |
mbed_official | 365:7ced7d9d5ffe | 93 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 94 | .long 0 /* Reserved */ |
mbed_official | 365:7ced7d9d5ffe | 95 | .long PendSV_Handler /* PendSV Handler */ |
mbed_official | 365:7ced7d9d5ffe | 96 | .long SysTick_Handler /* SysTick Handler */ |
mbed_official | 365:7ced7d9d5ffe | 97 | |
mbed_official | 365:7ced7d9d5ffe | 98 | /* LPC824 interrupts */ |
mbed_official | 365:7ced7d9d5ffe | 99 | .long SPI0_IRQHandler // SPI0 controller |
mbed_official | 365:7ced7d9d5ffe | 100 | .long SPI1_IRQHandler // SPI1 controller |
mbed_official | 514:7668256dbe61 | 101 | .long 0 // Reserved |
mbed_official | 365:7ced7d9d5ffe | 102 | .long UART0_IRQHandler // UART0 |
mbed_official | 365:7ced7d9d5ffe | 103 | .long UART1_IRQHandler // UART1 |
mbed_official | 365:7ced7d9d5ffe | 104 | .long UART2_IRQHandler // UART2 |
mbed_official | 514:7668256dbe61 | 105 | .long 0 // Reserved |
mbed_official | 514:7668256dbe61 | 106 | .long I2C1_IRQHandler // I2C ch1 controller |
mbed_official | 514:7668256dbe61 | 107 | .long I2C0_IRQHandler // I2C ch0 controller |
mbed_official | 365:7ced7d9d5ffe | 108 | .long SCT_IRQHandler // Smart Counter Timer |
mbed_official | 365:7ced7d9d5ffe | 109 | .long MRT_IRQHandler // Multi-Rate Timer |
mbed_official | 365:7ced7d9d5ffe | 110 | .long CMP_IRQHandler // Comparator |
mbed_official | 365:7ced7d9d5ffe | 111 | .long WDT_IRQHandler // PIO1 (0:11) |
mbed_official | 365:7ced7d9d5ffe | 112 | .long BOD_IRQHandler // Brown Out Detect |
mbed_official | 514:7668256dbe61 | 113 | .long Flash_IRQHandler // Flash interrupt |
mbed_official | 365:7ced7d9d5ffe | 114 | .long WKT_IRQHandler // Wakeup timer |
mbed_official | 514:7668256dbe61 | 115 | .long ADC_SEQA_IRQHandler // ADC sequence A completion |
mbed_official | 514:7668256dbe61 | 116 | .long ADC_SEQB_IRQHandler // ADC sequence B completion |
mbed_official | 514:7668256dbe61 | 117 | .long ADC_THCMP_IRQHandler // ADC threshold compare |
mbed_official | 514:7668256dbe61 | 118 | .long ADC_OVR_IRQHandler // ADC overrun |
mbed_official | 514:7668256dbe61 | 119 | .long DMA_IRQHandler // DMA interrupt |
mbed_official | 514:7668256dbe61 | 120 | .long I2C2_IRQHandler // I2C2 controller |
mbed_official | 514:7668256dbe61 | 121 | .long I2C3_IRQHandler // I2C3 controller |
mbed_official | 514:7668256dbe61 | 122 | .long 0 // Reserved |
mbed_official | 365:7ced7d9d5ffe | 123 | .long PININT0_IRQHandler // PIO INT0 |
mbed_official | 365:7ced7d9d5ffe | 124 | .long PININT1_IRQHandler // PIO INT1 |
mbed_official | 365:7ced7d9d5ffe | 125 | .long PININT2_IRQHandler // PIO INT2 |
mbed_official | 365:7ced7d9d5ffe | 126 | .long PININT3_IRQHandler // PIO INT3 |
mbed_official | 365:7ced7d9d5ffe | 127 | .long PININT4_IRQHandler // PIO INT4 |
mbed_official | 365:7ced7d9d5ffe | 128 | .long PININT5_IRQHandler // PIO INT5 |
mbed_official | 365:7ced7d9d5ffe | 129 | .long PININT6_IRQHandler // PIO INT6 |
mbed_official | 365:7ced7d9d5ffe | 130 | .long PININT7_IRQHandler // PIO INT7 |
mbed_official | 365:7ced7d9d5ffe | 131 | |
mbed_official | 365:7ced7d9d5ffe | 132 | .size __isr_vector, . - __isr_vector |
mbed_official | 365:7ced7d9d5ffe | 133 | |
mbed_official | 365:7ced7d9d5ffe | 134 | .section .text.Reset_Handler |
mbed_official | 365:7ced7d9d5ffe | 135 | .thumb |
mbed_official | 365:7ced7d9d5ffe | 136 | .thumb_func |
mbed_official | 365:7ced7d9d5ffe | 137 | .align 2 |
mbed_official | 365:7ced7d9d5ffe | 138 | .globl Reset_Handler |
mbed_official | 365:7ced7d9d5ffe | 139 | .type Reset_Handler, %function |
mbed_official | 365:7ced7d9d5ffe | 140 | Reset_Handler: |
mbed_official | 365:7ced7d9d5ffe | 141 | /* Loop to copy data from read only memory to RAM. The ranges |
mbed_official | 365:7ced7d9d5ffe | 142 | * of copy from/to are specified by following symbols evaluated in |
mbed_official | 365:7ced7d9d5ffe | 143 | * linker script. |
mbed_official | 365:7ced7d9d5ffe | 144 | * __etext: End of code section, i.e., begin of data sections to copy from. |
mbed_official | 365:7ced7d9d5ffe | 145 | * __data_start__/__data_end__: RAM address range that data should be |
mbed_official | 365:7ced7d9d5ffe | 146 | * copied to. Both must be aligned to 4 bytes boundary. */ |
mbed_official | 365:7ced7d9d5ffe | 147 | |
mbed_official | 365:7ced7d9d5ffe | 148 | ldr r1, =__etext |
mbed_official | 365:7ced7d9d5ffe | 149 | ldr r2, =__data_start__ |
mbed_official | 365:7ced7d9d5ffe | 150 | ldr r3, =__data_end__ |
mbed_official | 365:7ced7d9d5ffe | 151 | |
mbed_official | 365:7ced7d9d5ffe | 152 | subs r3, r2 |
mbed_official | 365:7ced7d9d5ffe | 153 | ble .Lflash_to_ram_loop_end |
mbed_official | 365:7ced7d9d5ffe | 154 | |
mbed_official | 365:7ced7d9d5ffe | 155 | movs r4, 0 |
mbed_official | 365:7ced7d9d5ffe | 156 | .Lflash_to_ram_loop: |
mbed_official | 365:7ced7d9d5ffe | 157 | ldr r0, [r1,r4] |
mbed_official | 365:7ced7d9d5ffe | 158 | str r0, [r2,r4] |
mbed_official | 365:7ced7d9d5ffe | 159 | adds r4, 4 |
mbed_official | 365:7ced7d9d5ffe | 160 | cmp r4, r3 |
mbed_official | 365:7ced7d9d5ffe | 161 | blt .Lflash_to_ram_loop |
mbed_official | 365:7ced7d9d5ffe | 162 | .Lflash_to_ram_loop_end: |
mbed_official | 365:7ced7d9d5ffe | 163 | |
mbed_official | 365:7ced7d9d5ffe | 164 | ldr r0, =SystemInit |
mbed_official | 365:7ced7d9d5ffe | 165 | blx r0 |
mbed_official | 365:7ced7d9d5ffe | 166 | ldr r0, =_start |
mbed_official | 365:7ced7d9d5ffe | 167 | bx r0 |
mbed_official | 365:7ced7d9d5ffe | 168 | .pool |
mbed_official | 365:7ced7d9d5ffe | 169 | .size Reset_Handler, . - Reset_Handler |
mbed_official | 365:7ced7d9d5ffe | 170 | |
mbed_official | 365:7ced7d9d5ffe | 171 | .text |
mbed_official | 365:7ced7d9d5ffe | 172 | /* Macro to define default handlers. Default handler |
mbed_official | 365:7ced7d9d5ffe | 173 | * will be weak symbol and just dead loops. They can be |
mbed_official | 365:7ced7d9d5ffe | 174 | * overwritten by other handlers */ |
mbed_official | 365:7ced7d9d5ffe | 175 | .macro def_default_handler handler_name |
mbed_official | 365:7ced7d9d5ffe | 176 | .align 1 |
mbed_official | 365:7ced7d9d5ffe | 177 | .thumb_func |
mbed_official | 365:7ced7d9d5ffe | 178 | .weak \handler_name |
mbed_official | 365:7ced7d9d5ffe | 179 | .type \handler_name, %function |
mbed_official | 365:7ced7d9d5ffe | 180 | \handler_name : |
mbed_official | 365:7ced7d9d5ffe | 181 | b . |
mbed_official | 365:7ced7d9d5ffe | 182 | .size \handler_name, . - \handler_name |
mbed_official | 365:7ced7d9d5ffe | 183 | .endm |
mbed_official | 365:7ced7d9d5ffe | 184 | |
mbed_official | 365:7ced7d9d5ffe | 185 | def_default_handler NMI_Handler |
mbed_official | 365:7ced7d9d5ffe | 186 | def_default_handler HardFault_Handler |
mbed_official | 365:7ced7d9d5ffe | 187 | def_default_handler SVC_Handler |
mbed_official | 365:7ced7d9d5ffe | 188 | def_default_handler PendSV_Handler |
mbed_official | 365:7ced7d9d5ffe | 189 | def_default_handler SysTick_Handler |
mbed_official | 365:7ced7d9d5ffe | 190 | def_default_handler Default_Handler |
mbed_official | 365:7ced7d9d5ffe | 191 | |
mbed_official | 365:7ced7d9d5ffe | 192 | .macro def_irq_default_handler handler_name |
mbed_official | 365:7ced7d9d5ffe | 193 | .weak \handler_name |
mbed_official | 365:7ced7d9d5ffe | 194 | .set \handler_name, Default_Handler |
mbed_official | 365:7ced7d9d5ffe | 195 | .endm |
mbed_official | 514:7668256dbe61 | 196 | |
mbed_official | 365:7ced7d9d5ffe | 197 | def_irq_default_handler SPI0_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 198 | def_irq_default_handler SPI1_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 199 | def_irq_default_handler UART0_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 200 | def_irq_default_handler UART1_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 201 | def_irq_default_handler UART2_IRQHandler |
mbed_official | 514:7668256dbe61 | 202 | def_irq_default_handler I2C0_IRQHandler |
mbed_official | 514:7668256dbe61 | 203 | def_irq_default_handler I2C1_IRQHandler |
mbed_official | 514:7668256dbe61 | 204 | def_irq_default_handler I2C2_IRQHandler |
mbed_official | 514:7668256dbe61 | 205 | def_irq_default_handler I2C3_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 206 | def_irq_default_handler SCT_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 207 | def_irq_default_handler MRT_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 208 | def_irq_default_handler CMP_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 209 | def_irq_default_handler WDT_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 210 | def_irq_default_handler BOD_IRQHandler |
mbed_official | 514:7668256dbe61 | 211 | def_irq_default_handler Flash_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 212 | def_irq_default_handler WKT_IRQHandler |
mbed_official | 514:7668256dbe61 | 213 | def_irq_default_handler ADC_SEQA_IRQHandler |
mbed_official | 514:7668256dbe61 | 214 | def_irq_default_handler ADC_SEQB_IRQHandler |
mbed_official | 514:7668256dbe61 | 215 | def_irq_default_handler ADC_THCMP_IRQHandler |
mbed_official | 514:7668256dbe61 | 216 | def_irq_default_handler ADC_OVR_IRQHandler |
mbed_official | 514:7668256dbe61 | 217 | def_irq_default_handler DMA_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 218 | def_irq_default_handler PININT0_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 219 | def_irq_default_handler PININT1_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 220 | def_irq_default_handler PININT2_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 221 | def_irq_default_handler PININT3_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 222 | def_irq_default_handler PININT4_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 223 | def_irq_default_handler PININT5_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 224 | def_irq_default_handler PININT6_IRQHandler |
mbed_official | 514:7668256dbe61 | 225 | def_irq_default_handler PININT7_IRQHandler |
mbed_official | 365:7ced7d9d5ffe | 226 | |
mbed_official | 365:7ced7d9d5ffe | 227 | .end |
mbed_official | 365:7ced7d9d5ffe | 228 |