begriffs open source - cmsis-dfp-stm32f4/blob - Source/Templates/gcc/startup_stm32f401xe.s

   1 /**
   2   ******************************************************************************
   3   * @file      startup_stm32f401xe.s
   4   * @author    MCD Application Team
   5   * @brief     STM32F401xExx Devices vector table for GCC based toolchains.
   6   *            This module performs:
   7   *                - Set the initial SP
   8   *                - Set the initial PC == Reset_Handler,
   9   *                - Set the vector table entries with the exceptions ISR address
  10   *                - Branches to main in the C library (which eventually
  11   *                  calls main()).
  12   *            After Reset the Cortex-M4 processor is in Thread mode,
  13   *            priority is Privileged, and the Stack is set to Main.
  14   ******************************************************************************
  15   * @attention
  16   *
  17   * <h2><center>&copy; COPYRIGHT 2017 STMicroelectronics</center></h2>
  18   *
  19   * Redistribution and use in source and binary forms, with or without modification,
  20   * are permitted provided that the following conditions are met:
  21   *   1. Redistributions of source code must retain the above copyright notice,
  22   *      this list of conditions and the following disclaimer.
  23   *   2. Redistributions in binary form must reproduce the above copyright notice,
  24   *      this list of conditions and the following disclaimer in the documentation
  25   *      and/or other materials provided with the distribution.
  26   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  27   *      may be used to endorse or promote products derived from this software
  28   *      without specific prior written permission.
  29   *
  30   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  31   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  32   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  33   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  34   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  36   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  37   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  38   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  39   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  40   *
  41   ******************************************************************************
  42   */
  43
  44   .syntax unified
  45   .cpu cortex-m4
  46   .fpu softvfp
  47   .thumb
  48
  49 .global  g_pfnVectors
  50 .global  Default_Handler
  51
  52 /* start address for the initialization values of the .data section.
  53 defined in linker script */
  54 .word  _sidata
  55 /* start address for the .data section. defined in linker script */
  56 .word  _sdata
  57 /* end address for the .data section. defined in linker script */
  58 .word  _edata
  59 /* start address for the .bss section. defined in linker script */
  60 .word  _sbss
  61 /* end address for the .bss section. defined in linker script */
  62 .word  _ebss
  63 /* stack used for SystemInit_ExtMemCtl; always internal RAM used */
  64
  65 /**
  66  * @brief  This is the code that gets called when the processor first
  67  *          starts execution following a reset event. Only the absolutely
  68  *          necessary set is performed, after which the application
  69  *          supplied main() routine is called.
  70  * @param  None
  71  * @retval : None
  72 */
  73
  74     .section  .text.Reset_Handler
  75   .weak  Reset_Handler
  76   .type  Reset_Handler, %function
  77 Reset_Handler:
  78   ldr   sp, =_estack                     /* set stack pointer */
  79
  80 /* Copy the data segment initializers from flash to SRAM */
  81   movs  r1, #0
  82   b  LoopCopyDataInit
  83
  84 CopyDataInit:
  85   ldr  r3, =_sidata
  86   ldr  r3, [r3, r1]
  87   str  r3, [r0, r1]
  88   adds  r1, r1, #4
  89
  90 LoopCopyDataInit:
  91   ldr  r0, =_sdata
  92   ldr  r3, =_edata
  93   adds  r2, r0, r1
  94   cmp  r2, r3
  95   bcc  CopyDataInit
  96   ldr  r2, =_sbss
  97   b  LoopFillZerobss
  98 /* Zero fill the bss segment. */
  99 FillZerobss:
 100   movs  r3, #0
 101   str  r3, [r2], #4
 102
 103 LoopFillZerobss:
 104   ldr  r3, = _ebss
 105   cmp  r2, r3
 106   bcc  FillZerobss
 107
 108 /* Call the clock system intitialization function.*/
 109   bl  SystemInit
 110 /* Call static constructors */
 111     bl __libc_init_array
 112 /* Call the application's entry point.*/
 113   bl  main
 114   bx  lr
 115 .size  Reset_Handler, .-Reset_Handler
 116
 117 /**
 118  * @brief  This is the code that gets called when the processor receives an
 119  *         unexpected interrupt.  This simply enters an infinite loop, preserving
 120  *         the system state for examination by a debugger.
 121  * @param  None
 122  * @retval None
 123 */
 124     .section  .text.Default_Handler,"ax",%progbits
 125 Default_Handler:
 126 Infinite_Loop:
 127   b  Infinite_Loop
 128   .size  Default_Handler, .-Default_Handler
 129 /******************************************************************************
 130 *
 131 * The minimal vector table for a Cortex M3. Note that the proper constructs
 132 * must be placed on this to ensure that it ends up at physical address
 133 * 0x0000.0000.
 134 *
 135 *******************************************************************************/
 136    .section  .isr_vector,"a",%progbits
 137   .type  g_pfnVectors, %object
 138   .size  g_pfnVectors, .-g_pfnVectors
 139
 140 g_pfnVectors:
 141   .word  _estack
 142   .word  Reset_Handler
 143   .word  NMI_Handler
 144   .word  HardFault_Handler
 145   .word  MemManage_Handler
 146   .word  BusFault_Handler
 147   .word  UsageFault_Handler
 148   .word  0
 149   .word  0
 150   .word  0
 151   .word  0
 152   .word  SVC_Handler
 153   .word  DebugMon_Handler
 154   .word  0
 155   .word  PendSV_Handler
 156   .word  SysTick_Handler
 157
 158   /* External Interrupts */
 159   .word     WWDG_IRQHandler                   /* Window WatchDog              */
 160   .word     PVD_IRQHandler                    /* PVD through EXTI Line detection */
 161   .word     TAMP_STAMP_IRQHandler             /* Tamper and TimeStamps through the EXTI line */
 162   .word     RTC_WKUP_IRQHandler               /* RTC Wakeup through the EXTI line */
 163   .word     FLASH_IRQHandler                  /* FLASH                        */
 164   .word     RCC_IRQHandler                    /* RCC                          */
 165   .word     EXTI0_IRQHandler                  /* EXTI Line0                   */
 166   .word     EXTI1_IRQHandler                  /* EXTI Line1                   */
 167   .word     EXTI2_IRQHandler                  /* EXTI Line2                   */
 168   .word     EXTI3_IRQHandler                  /* EXTI Line3                   */
 169   .word     EXTI4_IRQHandler                  /* EXTI Line4                   */
 170   .word     DMA1_Stream0_IRQHandler           /* DMA1 Stream 0                */
 171   .word     DMA1_Stream1_IRQHandler           /* DMA1 Stream 1                */
 172   .word     DMA1_Stream2_IRQHandler           /* DMA1 Stream 2                */
 173   .word     DMA1_Stream3_IRQHandler           /* DMA1 Stream 3                */
 174   .word     DMA1_Stream4_IRQHandler           /* DMA1 Stream 4                */
 175   .word     DMA1_Stream5_IRQHandler           /* DMA1 Stream 5                */
 176   .word     DMA1_Stream6_IRQHandler           /* DMA1 Stream 6                */
 177   .word     ADC_IRQHandler                    /* ADC1, ADC2 and ADC3s         */
 178   .word     0                                             /* Reserved                      */
 179   .word     0                                                     /* Reserved                     */
 180   .word     0                                 /* Reserved                     */
 181   .word     0                                 /* Reserved                     */
 182   .word     EXTI9_5_IRQHandler                /* External Line[9:5]s          */
 183   .word     TIM1_BRK_TIM9_IRQHandler          /* TIM1 Break and TIM9          */
 184   .word     TIM1_UP_TIM10_IRQHandler          /* TIM1 Update and TIM10        */
 185   .word     TIM1_TRG_COM_TIM11_IRQHandler     /* TIM1 Trigger and Commutation and TIM11 */
 186   .word     TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
 187   .word     TIM2_IRQHandler                   /* TIM2                         */
 188   .word     TIM3_IRQHandler                   /* TIM3                         */
 189   .word     TIM4_IRQHandler                   /* TIM4                         */
 190   .word     I2C1_EV_IRQHandler                /* I2C1 Event                   */
 191   .word     I2C1_ER_IRQHandler                /* I2C1 Error                   */
 192   .word     I2C2_EV_IRQHandler                /* I2C2 Event                   */
 193   .word     I2C2_ER_IRQHandler                /* I2C2 Error                   */
 194   .word     SPI1_IRQHandler                   /* SPI1                         */
 195   .word     SPI2_IRQHandler                   /* SPI2                         */
 196   .word     USART1_IRQHandler                 /* USART1                       */
 197   .word     USART2_IRQHandler                 /* USART2                       */
 198   .word     0                                             /* Reserved                       */
 199   .word     EXTI15_10_IRQHandler              /* External Line[15:10]s        */
 200   .word     RTC_Alarm_IRQHandler              /* RTC Alarm (A and B) through EXTI Line */
 201   .word     OTG_FS_WKUP_IRQHandler            /* USB OTG FS Wakeup through EXTI line */
 202   .word     0                                 /* Reserved                                 */
 203   .word     0                                 /* Reserved                                 */
 204   .word     0                                 /* Reserved                                         */
 205   .word     0                                 /* Reserved                     */
 206   .word     DMA1_Stream7_IRQHandler           /* DMA1 Stream7                 */
 207   .word     0                                 /* Reserved                     */
 208   .word     SDIO_IRQHandler                   /* SDIO                         */
 209   .word     TIM5_IRQHandler                   /* TIM5                         */
 210   .word     SPI3_IRQHandler                   /* SPI3                         */
 211   .word     0                                 /* Reserved                     */
 212   .word     0                                 /* Reserved                     */
 213   .word     0                                 /* Reserved                     */
 214   .word     0                                 /* Reserved                     */
 215   .word     DMA2_Stream0_IRQHandler           /* DMA2 Stream 0                */
 216   .word     DMA2_Stream1_IRQHandler           /* DMA2 Stream 1                */
 217   .word     DMA2_Stream2_IRQHandler           /* DMA2 Stream 2                */
 218   .word     DMA2_Stream3_IRQHandler           /* DMA2 Stream 3                */
 219   .word     DMA2_Stream4_IRQHandler           /* DMA2 Stream 4                */
 220   .word     0                                             /* Reserved                     */
 221   .word     0                                                     /* Reserved                     */
 222   .word     0                                                     /* Reserved                     */
 223   .word     0                                                     /* Reserved                     */
 224   .word     0                                                     /* Reserved                     */
 225   .word     0                                                     /* Reserved                     */
 226   .word     OTG_FS_IRQHandler                 /* USB OTG FS                   */
 227   .word     DMA2_Stream5_IRQHandler           /* DMA2 Stream 5                */
 228   .word     DMA2_Stream6_IRQHandler           /* DMA2 Stream 6                */
 229   .word     DMA2_Stream7_IRQHandler           /* DMA2 Stream 7                */
 230   .word     USART6_IRQHandler                 /* USART6                       */
 231   .word     I2C3_EV_IRQHandler                /* I2C3 event                   */
 232   .word     I2C3_ER_IRQHandler                /* I2C3 error                   */
 233   .word     0                                 /* Reserved                     */
 234   .word     0                                 /* Reserved                     */
 235   .word     0                                 /* Reserved                     */
 236   .word     0                                 /* Reserved                     */
 237   .word     0                                 /* Reserved                     */
 238   .word     0                                 /* Reserved                     */
 239   .word     0                                 /* Reserved                     */
 240   .word     FPU_IRQHandler                    /* FPU                          */
 241   .word     0                                 /* Reserved                     */
 242   .word     0                                 /* Reserved                     */
 243   .word     SPI4_IRQHandler                   /* SPI4                         */
 244
 245 /*******************************************************************************
 246 *
 247 * Provide weak aliases for each Exception handler to the Default_Handler.
 248 * As they are weak aliases, any function with the same name will override
 249 * this definition.
 250 *
 251 *******************************************************************************/
 252    .weak      NMI_Handler
 253    .thumb_set NMI_Handler,Default_Handler
 254
 255    .weak      HardFault_Handler
 256    .thumb_set HardFault_Handler,Default_Handler
 257
 258    .weak      MemManage_Handler
 259    .thumb_set MemManage_Handler,Default_Handler
 260
 261    .weak      BusFault_Handler
 262    .thumb_set BusFault_Handler,Default_Handler
 263
 264    .weak      UsageFault_Handler
 265    .thumb_set UsageFault_Handler,Default_Handler
 266
 267    .weak      SVC_Handler
 268    .thumb_set SVC_Handler,Default_Handler
 269
 270    .weak      DebugMon_Handler
 271    .thumb_set DebugMon_Handler,Default_Handler
 272
 273    .weak      PendSV_Handler
 274    .thumb_set PendSV_Handler,Default_Handler
 275
 276    .weak      SysTick_Handler
 277    .thumb_set SysTick_Handler,Default_Handler
 278
 279    .weak      WWDG_IRQHandler
 280    .thumb_set WWDG_IRQHandler,Default_Handler
 281
 282    .weak      PVD_IRQHandler
 283    .thumb_set PVD_IRQHandler,Default_Handler
 284
 285    .weak      TAMP_STAMP_IRQHandler
 286    .thumb_set TAMP_STAMP_IRQHandler,Default_Handler
 287
 288    .weak      RTC_WKUP_IRQHandler
 289    .thumb_set RTC_WKUP_IRQHandler,Default_Handler
 290
 291    .weak      FLASH_IRQHandler
 292    .thumb_set FLASH_IRQHandler,Default_Handler
 293
 294    .weak      RCC_IRQHandler
 295    .thumb_set RCC_IRQHandler,Default_Handler
 296
 297    .weak      EXTI0_IRQHandler
 298    .thumb_set EXTI0_IRQHandler,Default_Handler
 299
 300    .weak      EXTI1_IRQHandler
 301    .thumb_set EXTI1_IRQHandler,Default_Handler
 302
 303    .weak      EXTI2_IRQHandler
 304    .thumb_set EXTI2_IRQHandler,Default_Handler
 305
 306    .weak      EXTI3_IRQHandler
 307    .thumb_set EXTI3_IRQHandler,Default_Handler
 308
 309    .weak      EXTI4_IRQHandler
 310    .thumb_set EXTI4_IRQHandler,Default_Handler
 311
 312    .weak      DMA1_Stream0_IRQHandler
 313    .thumb_set DMA1_Stream0_IRQHandler,Default_Handler
 314
 315    .weak      DMA1_Stream1_IRQHandler
 316    .thumb_set DMA1_Stream1_IRQHandler,Default_Handler
 317
 318    .weak      DMA1_Stream2_IRQHandler
 319    .thumb_set DMA1_Stream2_IRQHandler,Default_Handler
 320
 321    .weak      DMA1_Stream3_IRQHandler
 322    .thumb_set DMA1_Stream3_IRQHandler,Default_Handler
 323
 324    .weak      DMA1_Stream4_IRQHandler
 325    .thumb_set DMA1_Stream4_IRQHandler,Default_Handler
 326
 327    .weak      DMA1_Stream5_IRQHandler
 328    .thumb_set DMA1_Stream5_IRQHandler,Default_Handler
 329
 330    .weak      DMA1_Stream6_IRQHandler
 331    .thumb_set DMA1_Stream6_IRQHandler,Default_Handler
 332
 333    .weak      ADC_IRQHandler
 334    .thumb_set ADC_IRQHandler,Default_Handler
 335
 336    .weak      EXTI9_5_IRQHandler
 337    .thumb_set EXTI9_5_IRQHandler,Default_Handler
 338
 339    .weak      TIM1_BRK_TIM9_IRQHandler
 340    .thumb_set TIM1_BRK_TIM9_IRQHandler,Default_Handler
 341
 342    .weak      TIM1_UP_TIM10_IRQHandler
 343    .thumb_set TIM1_UP_TIM10_IRQHandler,Default_Handler
 344
 345    .weak      TIM1_TRG_COM_TIM11_IRQHandler
 346    .thumb_set TIM1_TRG_COM_TIM11_IRQHandler,Default_Handler
 347
 348    .weak      TIM1_CC_IRQHandler
 349    .thumb_set TIM1_CC_IRQHandler,Default_Handler
 350
 351    .weak      TIM2_IRQHandler
 352    .thumb_set TIM2_IRQHandler,Default_Handler
 353
 354    .weak      TIM3_IRQHandler
 355    .thumb_set TIM3_IRQHandler,Default_Handler
 356
 357    .weak      TIM4_IRQHandler
 358    .thumb_set TIM4_IRQHandler,Default_Handler
 359
 360    .weak      I2C1_EV_IRQHandler
 361    .thumb_set I2C1_EV_IRQHandler,Default_Handler
 362
 363    .weak      I2C1_ER_IRQHandler
 364    .thumb_set I2C1_ER_IRQHandler,Default_Handler
 365
 366    .weak      I2C2_EV_IRQHandler
 367    .thumb_set I2C2_EV_IRQHandler,Default_Handler
 368
 369    .weak      I2C2_ER_IRQHandler
 370    .thumb_set I2C2_ER_IRQHandler,Default_Handler
 371
 372    .weak      SPI1_IRQHandler
 373    .thumb_set SPI1_IRQHandler,Default_Handler
 374
 375    .weak      SPI2_IRQHandler
 376    .thumb_set SPI2_IRQHandler,Default_Handler
 377
 378    .weak      USART1_IRQHandler
 379    .thumb_set USART1_IRQHandler,Default_Handler
 380
 381    .weak      USART2_IRQHandler
 382    .thumb_set USART2_IRQHandler,Default_Handler
 383
 384    .weak      EXTI15_10_IRQHandler
 385    .thumb_set EXTI15_10_IRQHandler,Default_Handler
 386
 387    .weak      RTC_Alarm_IRQHandler
 388    .thumb_set RTC_Alarm_IRQHandler,Default_Handler
 389
 390    .weak      OTG_FS_WKUP_IRQHandler
 391    .thumb_set OTG_FS_WKUP_IRQHandler,Default_Handler
 392
 393    .weak      DMA1_Stream7_IRQHandler
 394    .thumb_set DMA1_Stream7_IRQHandler,Default_Handler
 395
 396    .weak      SDIO_IRQHandler
 397    .thumb_set SDIO_IRQHandler,Default_Handler
 398
 399    .weak      TIM5_IRQHandler
 400    .thumb_set TIM5_IRQHandler,Default_Handler
 401
 402    .weak      SPI3_IRQHandler
 403    .thumb_set SPI3_IRQHandler,Default_Handler
 404
 405    .weak      DMA2_Stream0_IRQHandler
 406    .thumb_set DMA2_Stream0_IRQHandler,Default_Handler
 407
 408    .weak      DMA2_Stream1_IRQHandler
 409    .thumb_set DMA2_Stream1_IRQHandler,Default_Handler
 410
 411    .weak      DMA2_Stream2_IRQHandler
 412    .thumb_set DMA2_Stream2_IRQHandler,Default_Handler
 413
 414    .weak      DMA2_Stream3_IRQHandler
 415    .thumb_set DMA2_Stream3_IRQHandler,Default_Handler
 416
 417    .weak      DMA2_Stream4_IRQHandler
 418    .thumb_set DMA2_Stream4_IRQHandler,Default_Handler
 419
 420    .weak      OTG_FS_IRQHandler
 421    .thumb_set OTG_FS_IRQHandler,Default_Handler
 422
 423    .weak      DMA2_Stream5_IRQHandler
 424    .thumb_set DMA2_Stream5_IRQHandler,Default_Handler
 425
 426    .weak      DMA2_Stream6_IRQHandler
 427    .thumb_set DMA2_Stream6_IRQHandler,Default_Handler
 428
 429    .weak      DMA2_Stream7_IRQHandler
 430    .thumb_set DMA2_Stream7_IRQHandler,Default_Handler
 431
 432    .weak      USART6_IRQHandler
 433    .thumb_set USART6_IRQHandler,Default_Handler
 434
 435    .weak      I2C3_EV_IRQHandler
 436    .thumb_set I2C3_EV_IRQHandler,Default_Handler
 437
 438    .weak      I2C3_ER_IRQHandler
 439    .thumb_set I2C3_ER_IRQHandler,Default_Handler
 440
 441    .weak      FPU_IRQHandler
 442    .thumb_set FPU_IRQHandler,Default_Handler
 443
 444    .weak      SPI4_IRQHandler
 445    .thumb_set SPI4_IRQHandler,Default_Handler
 446
 447 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
 448