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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 | /* @file startup_efr32fg1p.S
* @brief startup file for Silicon Labs EFR32FG1P devices.
* For use with GCC for ARM Embedded Processors
* @version 5.1.2
* Date: 12 June 2014
*
*/
/* Copyright (c) 2011 - 2014 ARM LIMITED
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name of ARM nor the names of its contributors may be used
to endorse or promote products derived from this software without
specific prior written permission.
*
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
---------------------------------------------------------------------------*/
.syntax unified
.arch armv7-m
.section .stack
.align 3
#ifdef __STACK_SIZE
.equ Stack_Size, __STACK_SIZE
#else
.equ Stack_Size, 0x00000400
#endif
.globl __StackTop
.globl __StackLimit
__StackLimit:
.space Stack_Size
.size __StackLimit, . - __StackLimit
__StackTop:
.size __StackTop, . - __StackTop
.section .heap
.align 3
#ifdef __HEAP_SIZE
.equ Heap_Size, __HEAP_SIZE
#else
.equ Heap_Size, 0x00000C00
#endif
.globl __HeapBase
.globl __HeapLimit
__HeapBase:
.if Heap_Size
.space Heap_Size
.endif
.size __HeapBase, . - __HeapBase
__HeapLimit:
.size __HeapLimit, . - __HeapLimit
.section .vectors
.align 2
.globl __Vectors
__Vectors:
.long __StackTop /* Top of Stack */
.long Reset_Handler /* Reset Handler */
.long NMI_Handler /* NMI Handler */
.long HardFault_Handler /* Hard Fault Handler */
.long MemManage_Handler /* MPU Fault Handler */
.long BusFault_Handler /* Bus Fault Handler */
.long UsageFault_Handler /* Usage Fault Handler */
.long Default_Handler /* Reserved */
.long Default_Handler /* Reserved */
.long Default_Handler /* Reserved */
.long Default_Handler /* Reserved */
.long SVC_Handler /* SVCall Handler */
.long DebugMon_Handler /* Debug Monitor Handler */
.long Default_Handler /* Reserved */
.long PendSV_Handler /* PendSV Handler */
.long SysTick_Handler /* SysTick Handler */
/* External interrupts */
.long EMU_IRQHandler /* 0 - EMU */
.long FRC_PRI_IRQHandler /* 1 - FRC_PRI */
.long WDOG0_IRQHandler /* 2 - WDOG0 */
.long FRC_IRQHandler /* 3 - FRC */
.long MODEM_IRQHandler /* 4 - MODEM */
.long RAC_SEQ_IRQHandler /* 5 - RAC_SEQ */
.long RAC_RSM_IRQHandler /* 6 - RAC_RSM */
.long BUFC_IRQHandler /* 7 - BUFC */
.long LDMA_IRQHandler /* 8 - LDMA */
.long GPIO_EVEN_IRQHandler /* 9 - GPIO_EVEN */
.long TIMER0_IRQHandler /* 10 - TIMER0 */
.long USART0_RX_IRQHandler /* 11 - USART0_RX */
.long USART0_TX_IRQHandler /* 12 - USART0_TX */
.long ACMP0_IRQHandler /* 13 - ACMP0 */
.long ADC0_IRQHandler /* 14 - ADC0 */
.long IDAC0_IRQHandler /* 15 - IDAC0 */
.long I2C0_IRQHandler /* 16 - I2C0 */
.long GPIO_ODD_IRQHandler /* 17 - GPIO_ODD */
.long TIMER1_IRQHandler /* 18 - TIMER1 */
.long USART1_RX_IRQHandler /* 19 - USART1_RX */
.long USART1_TX_IRQHandler /* 20 - USART1_TX */
.long LEUART0_IRQHandler /* 21 - LEUART0 */
.long PCNT0_IRQHandler /* 22 - PCNT0 */
.long CMU_IRQHandler /* 23 - CMU */
.long MSC_IRQHandler /* 24 - MSC */
.long CRYPTO_IRQHandler /* 25 - CRYPTO */
.long LETIMER0_IRQHandler /* 26 - LETIMER0 */
.long AGC_IRQHandler /* 27 - AGC */
.long PROTIMER_IRQHandler /* 28 - PROTIMER */
.long RTCC_IRQHandler /* 29 - RTCC */
.long SYNTH_IRQHandler /* 30 - SYNTH */
.long CRYOTIMER_IRQHandler /* 31 - CRYOTIMER */
.long RFSENSE_IRQHandler /* 32 - RFSENSE */
.long FPUEH_IRQHandler /* 33 - FPUEH */
.size __Vectors, . - __Vectors
.text
.thumb
.thumb_func
.align 2
.globl Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
#ifndef __NO_SYSTEM_INIT
ldr r0, =SystemInit
blx r0
#endif
/* Firstly it copies data from read only memory to RAM. There are two schemes
* to copy. One can copy more than one sections. Another can only copy
* one section. The former scheme needs more instructions and read-only
* data to implement than the latter.
* Macro __STARTUP_COPY_MULTIPLE is used to choose between two schemes. */
#ifdef __STARTUP_COPY_MULTIPLE
/* Multiple sections scheme.
*
* Between symbol address __copy_table_start__ and __copy_table_end__,
* there are array of triplets, each of which specify:
* offset 0: LMA of start of a section to copy from
* offset 4: VMA of start of a section to copy to
* offset 8: size of the section to copy. Must be multiply of 4
*
* All addresses must be aligned to 4 bytes boundary.
*/
ldr r4, =__copy_table_start__
ldr r5, =__copy_table_end__
.L_loop0:
cmp r4, r5
bge .L_loop0_done
ldr r1, [r4]
ldr r2, [r4, #4]
ldr r3, [r4, #8]
.L_loop0_0:
subs r3, #4
ittt ge
ldrge r0, [r1, r3]
strge r0, [r2, r3]
bge .L_loop0_0
adds r4, #12
b .L_loop0
.L_loop0_done:
#else
/* Single section scheme.
*
* The ranges of copy from/to are specified by following symbols
* __etext: LMA of start of the section to copy from. Usually end of text
* __data_start__: VMA of start of the section to copy to
* __data_end__: VMA of end of the section to copy to
*
* All addresses must be aligned to 4 bytes boundary.
*/
ldr r1, =__etext
ldr r2, =__data_start__
ldr r3, =__data_end__
.L_loop1:
cmp r2, r3
ittt lt
ldrlt r0, [r1], #4
strlt r0, [r2], #4
blt .L_loop1
#endif /*__STARTUP_COPY_MULTIPLE */
/* This part of work usually is done in C library startup code. Otherwise,
* define this macro to enable it in this startup.
*
* There are two schemes too. One can clear multiple BSS sections. Another
* can only clear one section. The former is more size expensive than the
* latter.
*
* Define macro __STARTUP_CLEAR_BSS_MULTIPLE to choose the former.
* Otherwise efine macro __STARTUP_CLEAR_BSS to choose the later.
*/
#ifdef __STARTUP_CLEAR_BSS_MULTIPLE
/* Multiple sections scheme.
*
* Between symbol address __zero_table_start__ and __zero_table_end__,
* there are array of tuples specifying:
* offset 0: Start of a BSS section
* offset 4: Size of this BSS section. Must be multiply of 4
*/
ldr r3, =__zero_table_start__
ldr r4, =__zero_table_end__
.L_loop2:
cmp r3, r4
bge .L_loop2_done
ldr r1, [r3]
ldr r2, [r3, #4]
movs r0, 0
.L_loop2_0:
subs r2, #4
itt ge
strge r0, [r1, r2]
bge .L_loop2_0
adds r3, #8
b .L_loop2
.L_loop2_done:
#elif defined (__STARTUP_CLEAR_BSS)
/* Single BSS section scheme.
*
* The BSS section is specified by following symbols
* __bss_start__: start of the BSS section.
* __bss_end__: end of the BSS section.
*
* Both addresses must be aligned to 4 bytes boundary.
*/
ldr r1, =__bss_start__
ldr r2, =__bss_end__
movs r0, 0
.L_loop3:
cmp r1, r2
itt lt
strlt r0, [r1], #4
blt .L_loop3
#endif /* __STARTUP_CLEAR_BSS_MULTIPLE || __STARTUP_CLEAR_BSS */
#ifndef __START
#define __START _start
#endif
bl __START
.pool
.size Reset_Handler, . - Reset_Handler
.align 1
.thumb_func
.weak Default_Handler
.type Default_Handler, %function
Default_Handler:
b .
.size Default_Handler, . - Default_Handler
/* Macro to define default handlers. Default handler
* will be weak symbol and just dead loops. They can be
* overwritten by other handlers */
.macro def_irq_handler handler_name
.weak \handler_name
.set \handler_name, Default_Handler
.endm
def_irq_handler NMI_Handler
def_irq_handler HardFault_Handler
def_irq_handler MemManage_Handler
def_irq_handler BusFault_Handler
def_irq_handler UsageFault_Handler
def_irq_handler SVC_Handler
def_irq_handler DebugMon_Handler
def_irq_handler PendSV_Handler
def_irq_handler SysTick_Handler
def_irq_handler EMU_IRQHandler
def_irq_handler FRC_PRI_IRQHandler
def_irq_handler WDOG0_IRQHandler
def_irq_handler FRC_IRQHandler
def_irq_handler MODEM_IRQHandler
def_irq_handler RAC_SEQ_IRQHandler
def_irq_handler RAC_RSM_IRQHandler
def_irq_handler BUFC_IRQHandler
def_irq_handler LDMA_IRQHandler
def_irq_handler GPIO_EVEN_IRQHandler
def_irq_handler TIMER0_IRQHandler
def_irq_handler USART0_RX_IRQHandler
def_irq_handler USART0_TX_IRQHandler
def_irq_handler ACMP0_IRQHandler
def_irq_handler ADC0_IRQHandler
def_irq_handler IDAC0_IRQHandler
def_irq_handler I2C0_IRQHandler
def_irq_handler GPIO_ODD_IRQHandler
def_irq_handler TIMER1_IRQHandler
def_irq_handler USART1_RX_IRQHandler
def_irq_handler USART1_TX_IRQHandler
def_irq_handler LEUART0_IRQHandler
def_irq_handler PCNT0_IRQHandler
def_irq_handler CMU_IRQHandler
def_irq_handler MSC_IRQHandler
def_irq_handler CRYPTO_IRQHandler
def_irq_handler LETIMER0_IRQHandler
def_irq_handler AGC_IRQHandler
def_irq_handler PROTIMER_IRQHandler
def_irq_handler RTCC_IRQHandler
def_irq_handler SYNTH_IRQHandler
def_irq_handler CRYOTIMER_IRQHandler
def_irq_handler RFSENSE_IRQHandler
def_irq_handler FPUEH_IRQHandler
.end
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