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stm32lib/CMSIS/STM32L4xx/Source/Templates/gcc/startup_stm32l443xx.s

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  1. /**

  2.   ******************************************************************************

  3.   * @file      startup_stm32l443xx.s

  4.   * @author    MCD Application Team

  5.   * @version   V1.3.2

  6.   * @date      16-June-2017

  7.   * @brief     STM32L443xx devices vector table for GCC toolchain.

  8.   *            This module performs:

  9.   *                - Set the initial SP

  10.   *                - Set the initial PC == Reset_Handler,

  11.   *                - Set the vector table entries with the exceptions ISR address,

  12.   *                - Configure the clock system

  13.   *                - Branches to main in the C library (which eventually

  14.   *                  calls main()).

  15.   *            After Reset the Cortex-M4 processor is in Thread mode,

  16.   *            priority is Privileged, and the Stack is set to Main.

  17.   ******************************************************************************

  18.   * @attention

  19.   *

  20.   * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>

  21.   *

  22.   * Redistribution and use in source and binary forms, with or without modification,

  23.   * are permitted provided that the following conditions are met:

  24.   *   1. Redistributions of source code must retain the above copyright notice,

  25.   *      this list of conditions and the following disclaimer.

  26.   *   2. Redistributions in binary form must reproduce the above copyright notice,

  27.   *      this list of conditions and the following disclaimer in the documentation

  28.   *      and/or other materials provided with the distribution.

  29.   *   3. Neither the name of STMicroelectronics nor the names of its contributors

  30.   *      may be used to endorse or promote products derived from this software

  31.   *      without specific prior written permission.

  32.   *

  33.   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  34.   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  35.   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

  36.   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

  37.   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  38.   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

  39.   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

  40.   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

  41.   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

  42.   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  43.   *

  44.   ******************************************************************************

  45.   */

  46. 

  47.   .syntax unified

  48.     .cpu cortex-m4

  49.     .fpu softvfp

  50.     .thumb

  51. 

  52. .global g_pfnVectors

  53. .global Default_Handler

  54. 

  55. /* start address for the initialization values of the .data section.

  56. defined in linker script */

  57. .word   _sidata

  58. /* start address for the .data section. defined in linker script */

  59. .word   _sdata

  60. /* end address for the .data section. defined in linker script */

  61. .word   _edata

  62. /* start address for the .bss section. defined in linker script */

  63. .word   _sbss

  64. /* end address for the .bss section. defined in linker script */

  65. .word   _ebss

  66. 

  67. .equ  BootRAM,        0xF1E0F85F

  68. /**

  69.  * @brief  This is the code that gets called when the processor first

  70.  *          starts execution following a reset event. Only the absolutely

  71.  *          necessary set is performed, after which the application

  72.  *          supplied main() routine is called.

  73.  * @param  None

  74.  * @retval : None

  75. */

  76. 

  77.     .section    .text.Reset_Handler

  78.     .weak   Reset_Handler

  79.     .type   Reset_Handler, %function

  80. Reset_Handler:

  81.   ldr   sp, =_estack    /* Atollic update: set stack pointer */

  82. 

  83. /* Copy the data segment initializers from flash to SRAM */

  84.   movs  r1, #0

  85.   b LoopCopyDataInit

  86. 

  87. CopyDataInit:

  88.     ldr r3, =_sidata

  89.     ldr r3, [r3, r1]

  90.     str r3, [r0, r1]

  91.     adds    r1, r1, #4

  92. 

  93. LoopCopyDataInit:

  94.     ldr r0, =_sdata

  95.     ldr r3, =_edata

  96.     adds    r2, r0, r1

  97.     cmp r2, r3

  98.     bcc CopyDataInit

  99.     ldr r2, =_sbss

  100.     b   LoopFillZerobss

  101. /* Zero fill the bss segment. */

  102. FillZerobss:

  103.     movs    r3, #0

  104.     str r3, [r2], #4

  105. 

  106. LoopFillZerobss:

  107.     ldr r3, = _ebss

  108.     cmp r2, r3

  109.     bcc FillZerobss

  110. 

  111. /* Call the clock system intitialization function.*/

  112.     bl  SystemInit

  113. /* Call static constructors */

  114.     bl __libc_init_array

  115. /* Call the application's entry point.*/

  116.     bl  main

  117. 

  118. LoopForever:

  119.     b LoopForever

  120. 

  121. .size   Reset_Handler, .-Reset_Handler

  122. 

  123. /**

  124.  * @brief  This is the code that gets called when the processor receives an

  125.  *         unexpected interrupt.  This simply enters an infinite loop, preserving

  126.  *         the system state for examination by a debugger.

  127.  *

  128.  * @param  None

  129.  * @retval : None

  130. */

  131.     .section    .text.Default_Handler,"ax",%progbits

  132. Default_Handler:

  133. Infinite_Loop:

  134.     b   Infinite_Loop

  135.     .size   Default_Handler, .-Default_Handler

  136. /******************************************************************************

  137. *

  138. * The minimal vector table for a Cortex-M4.  Note that the proper constructs

  139. * must be placed on this to ensure that it ends up at physical address

  140. * 0x0000.0000.

  141. *

  142. ******************************************************************************/

  143.     .section    .isr_vector,"a",%progbits

  144.     .type   g_pfnVectors, %object

  145.     .size   g_pfnVectors, .-g_pfnVectors

  146. 

  147. 

  148. g_pfnVectors:

  149.     .word   _estack

  150.     .word   Reset_Handler

  151.     .word   NMI_Handler

  152.     .word   HardFault_Handler

  153.     .word   MemManage_Handler

  154.     .word   BusFault_Handler

  155.     .word   UsageFault_Handler

  156.     .word   0

  157.     .word   0

  158.     .word   0

  159.     .word   0

  160.     .word   SVC_Handler

  161.     .word   DebugMon_Handler

  162.     .word   0

  163.     .word   PendSV_Handler

  164.     .word   SysTick_Handler

  165.     .word   WWDG_IRQHandler

  166.     .word   PVD_PVM_IRQHandler

  167.     .word   TAMP_STAMP_IRQHandler

  168.     .word   RTC_WKUP_IRQHandler

  169.     .word   FLASH_IRQHandler

  170.     .word   RCC_IRQHandler

  171.     .word   EXTI0_IRQHandler

  172.     .word   EXTI1_IRQHandler

  173.     .word   EXTI2_IRQHandler

  174.     .word   EXTI3_IRQHandler

  175.     .word   EXTI4_IRQHandler

  176.     .word   DMA1_Channel1_IRQHandler

  177.     .word   DMA1_Channel2_IRQHandler

  178.     .word   DMA1_Channel3_IRQHandler

  179.     .word   DMA1_Channel4_IRQHandler

  180.     .word   DMA1_Channel5_IRQHandler

  181.     .word   DMA1_Channel6_IRQHandler

  182.     .word   DMA1_Channel7_IRQHandler

  183.     .word   ADC1_IRQHandler

  184.     .word   CAN1_TX_IRQHandler

  185.     .word   CAN1_RX0_IRQHandler

  186.     .word   CAN1_RX1_IRQHandler

  187.     .word   CAN1_SCE_IRQHandler

  188.     .word   EXTI9_5_IRQHandler

  189.     .word   TIM1_BRK_TIM15_IRQHandler

  190.     .word   TIM1_UP_TIM16_IRQHandler

  191.     .word   TIM1_TRG_COM_IRQHandler

  192.     .word   TIM1_CC_IRQHandler

  193.     .word   TIM2_IRQHandler

  194.     .word   0

  195.     .word   0

  196.     .word   I2C1_EV_IRQHandler

  197.     .word   I2C1_ER_IRQHandler

  198.     .word   I2C2_EV_IRQHandler

  199.     .word   I2C2_ER_IRQHandler

  200.     .word   SPI1_IRQHandler

  201.     .word   SPI2_IRQHandler

  202.     .word   USART1_IRQHandler

  203.     .word   USART2_IRQHandler

  204.     .word   USART3_IRQHandler

  205.     .word   EXTI15_10_IRQHandler

  206.     .word   RTC_Alarm_IRQHandler

  207.     .word   0

  208.     .word   0

  209.     .word   0

  210.     .word   0

  211.     .word   0

  212.     .word   0

  213.     .word   0

  214.     .word   SDMMC1_IRQHandler

  215.     .word   0

  216.     .word   SPI3_IRQHandler

  217.     .word   0

  218.     .word   0

  219.     .word   TIM6_DAC_IRQHandler

  220.     .word   TIM7_IRQHandler

  221.     .word   DMA2_Channel1_IRQHandler

  222.     .word   DMA2_Channel2_IRQHandler

  223.     .word   DMA2_Channel3_IRQHandler

  224.     .word   DMA2_Channel4_IRQHandler

  225.     .word   DMA2_Channel5_IRQHandler

  226.     .word   0

  227.     .word   0

  228.     .word   0

  229.     .word   COMP_IRQHandler

  230.     .word   LPTIM1_IRQHandler

  231.     .word   LPTIM2_IRQHandler

  232.     .word   USB_IRQHandler

  233.     .word   DMA2_Channel6_IRQHandler

  234.     .word   DMA2_Channel7_IRQHandler

  235.     .word   LPUART1_IRQHandler

  236.     .word   QUADSPI_IRQHandler

  237.     .word   I2C3_EV_IRQHandler

  238.     .word   I2C3_ER_IRQHandler

  239.     .word   SAI1_IRQHandler

  240.     .word   0

  241.     .word   SWPMI1_IRQHandler

  242.     .word   TSC_IRQHandler

  243.     .word   LCD_IRQHandler

  244.     .word   AES_IRQHandler

  245.     .word   RNG_IRQHandler

  246.     .word   FPU_IRQHandler

  247.     .word   CRS_IRQHandler

  248. 

  249. 

  250. /*******************************************************************************

  251. *

  252. * Provide weak aliases for each Exception handler to the Default_Handler.

  253. * As they are weak aliases, any function with the same name will override

  254. * this definition.

  255. *

  256. *******************************************************************************/

  257. 

  258.   .weak NMI_Handler

  259.     .thumb_set NMI_Handler,Default_Handler

  260. 

  261.   .weak HardFault_Handler

  262.     .thumb_set HardFault_Handler,Default_Handler

  263. 

  264.   .weak MemManage_Handler

  265.     .thumb_set MemManage_Handler,Default_Handler

  266. 

  267.   .weak BusFault_Handler

  268.     .thumb_set BusFault_Handler,Default_Handler

  269. 

  270.     .weak   UsageFault_Handler

  271.     .thumb_set UsageFault_Handler,Default_Handler

  272. 

  273.     .weak   SVC_Handler

  274.     .thumb_set SVC_Handler,Default_Handler

  275. 

  276.     .weak   DebugMon_Handler

  277.     .thumb_set DebugMon_Handler,Default_Handler

  278. 

  279.     .weak   PendSV_Handler

  280.     .thumb_set PendSV_Handler,Default_Handler

  281. 

  282.     .weak   SysTick_Handler

  283.     .thumb_set SysTick_Handler,Default_Handler

  284. 

  285.     .weak   WWDG_IRQHandler

  286.     .thumb_set WWDG_IRQHandler,Default_Handler

  287. 

  288.     .weak   PVD_PVM_IRQHandler

  289.     .thumb_set PVD_PVM_IRQHandler,Default_Handler

  290. 

  291.     .weak   TAMP_STAMP_IRQHandler

  292.     .thumb_set TAMP_STAMP_IRQHandler,Default_Handler

  293. 

  294.     .weak   RTC_WKUP_IRQHandler

  295.     .thumb_set RTC_WKUP_IRQHandler,Default_Handler

  296. 

  297.     .weak   FLASH_IRQHandler

  298.     .thumb_set FLASH_IRQHandler,Default_Handler

  299. 

  300.     .weak   RCC_IRQHandler

  301.     .thumb_set RCC_IRQHandler,Default_Handler

  302. 

  303.     .weak   EXTI0_IRQHandler

  304.     .thumb_set EXTI0_IRQHandler,Default_Handler

  305. 

  306.     .weak   EXTI1_IRQHandler

  307.     .thumb_set EXTI1_IRQHandler,Default_Handler

  308. 

  309.     .weak   EXTI2_IRQHandler

  310.     .thumb_set EXTI2_IRQHandler,Default_Handler

  311. 

  312.     .weak   EXTI3_IRQHandler

  313.     .thumb_set EXTI3_IRQHandler,Default_Handler

  314. 

  315.     .weak   EXTI4_IRQHandler

  316.     .thumb_set EXTI4_IRQHandler,Default_Handler

  317. 

  318.     .weak   DMA1_Channel1_IRQHandler

  319.     .thumb_set DMA1_Channel1_IRQHandler,Default_Handler

  320. 

  321.     .weak   DMA1_Channel2_IRQHandler

  322.     .thumb_set DMA1_Channel2_IRQHandler,Default_Handler

  323. 

  324.     .weak   DMA1_Channel3_IRQHandler

  325.     .thumb_set DMA1_Channel3_IRQHandler,Default_Handler

  326. 

  327.     .weak   DMA1_Channel4_IRQHandler

  328.     .thumb_set DMA1_Channel4_IRQHandler,Default_Handler

  329. 

  330.     .weak   DMA1_Channel5_IRQHandler

  331.     .thumb_set DMA1_Channel5_IRQHandler,Default_Handler

  332. 

  333.     .weak   DMA1_Channel6_IRQHandler

  334.     .thumb_set DMA1_Channel6_IRQHandler,Default_Handler

  335. 

  336.     .weak   DMA1_Channel7_IRQHandler

  337.     .thumb_set DMA1_Channel7_IRQHandler,Default_Handler

  338. 

  339.     .weak   ADC1_IRQHandler

  340.     .thumb_set ADC1_IRQHandler,Default_Handler

  341. 

  342.     .weak   CAN1_TX_IRQHandler

  343.     .thumb_set CAN1_TX_IRQHandler,Default_Handler

  344. 

  345.     .weak   CAN1_RX0_IRQHandler

  346.     .thumb_set CAN1_RX0_IRQHandler,Default_Handler

  347. 

  348.     .weak   CAN1_RX1_IRQHandler

  349.     .thumb_set CAN1_RX1_IRQHandler,Default_Handler

  350. 

  351.     .weak   CAN1_SCE_IRQHandler

  352.     .thumb_set CAN1_SCE_IRQHandler,Default_Handler

  353. 

  354.     .weak   EXTI9_5_IRQHandler

  355.     .thumb_set EXTI9_5_IRQHandler,Default_Handler

  356. 

  357.     .weak   TIM1_BRK_TIM15_IRQHandler

  358.     .thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler

  359. 

  360.     .weak   TIM1_UP_TIM16_IRQHandler

  361.     .thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler

  362. 

  363.     .weak   TIM1_TRG_COM_IRQHandler

  364.     .thumb_set TIM1_TRG_COM_IRQHandler,Default_Handler

  365. 

  366.     .weak   TIM1_CC_IRQHandler

  367.     .thumb_set TIM1_CC_IRQHandler,Default_Handler

  368. 

  369.     .weak   TIM2_IRQHandler

  370.     .thumb_set TIM2_IRQHandler,Default_Handler

  371. 

  372.     .weak   I2C1_EV_IRQHandler

  373.     .thumb_set I2C1_EV_IRQHandler,Default_Handler

  374. 

  375.     .weak   I2C1_ER_IRQHandler

  376.     .thumb_set I2C1_ER_IRQHandler,Default_Handler

  377. 

  378.     .weak   I2C2_EV_IRQHandler

  379.     .thumb_set I2C2_EV_IRQHandler,Default_Handler

  380. 

  381.     .weak   I2C2_ER_IRQHandler

  382.     .thumb_set I2C2_ER_IRQHandler,Default_Handler

  383. 

  384.     .weak   SPI1_IRQHandler

  385.     .thumb_set SPI1_IRQHandler,Default_Handler

  386. 

  387.     .weak   SPI2_IRQHandler

  388.     .thumb_set SPI2_IRQHandler,Default_Handler

  389. 

  390.     .weak   USART1_IRQHandler

  391.     .thumb_set USART1_IRQHandler,Default_Handler

  392. 

  393.     .weak   USART2_IRQHandler

  394.     .thumb_set USART2_IRQHandler,Default_Handler

  395. 

  396.     .weak   USART3_IRQHandler

  397.     .thumb_set USART3_IRQHandler,Default_Handler

  398. 

  399.     .weak   EXTI15_10_IRQHandler

  400.     .thumb_set EXTI15_10_IRQHandler,Default_Handler

  401. 

  402.     .weak   RTC_Alarm_IRQHandler

  403.     .thumb_set RTC_Alarm_IRQHandler,Default_Handler

  404. 

  405.     .weak   SDMMC1_IRQHandler

  406.     .thumb_set SDMMC1_IRQHandler,Default_Handler

  407. 

  408.     .weak   SPI3_IRQHandler

  409.     .thumb_set SPI3_IRQHandler,Default_Handler

  410. 

  411.     .weak   TIM6_DAC_IRQHandler

  412.     .thumb_set TIM6_DAC_IRQHandler,Default_Handler

  413. 

  414.     .weak   TIM7_IRQHandler

  415.     .thumb_set TIM7_IRQHandler,Default_Handler

  416. 

  417.     .weak   DMA2_Channel1_IRQHandler

  418.     .thumb_set DMA2_Channel1_IRQHandler,Default_Handler

  419. 

  420.     .weak   DMA2_Channel2_IRQHandler

  421.     .thumb_set DMA2_Channel2_IRQHandler,Default_Handler

  422. 

  423.     .weak   DMA2_Channel3_IRQHandler

  424.     .thumb_set DMA2_Channel3_IRQHandler,Default_Handler

  425. 

  426.     .weak   DMA2_Channel4_IRQHandler

  427.     .thumb_set DMA2_Channel4_IRQHandler,Default_Handler

  428. 

  429.     .weak   DMA2_Channel5_IRQHandler

  430.     .thumb_set DMA2_Channel5_IRQHandler,Default_Handler

  431. 

  432.     .weak   COMP_IRQHandler

  433.     .thumb_set COMP_IRQHandler,Default_Handler

  434. 

  435.     .weak   LPTIM1_IRQHandler

  436.     .thumb_set LPTIM1_IRQHandler,Default_Handler

  437. 

  438.     .weak   LPTIM2_IRQHandler

  439.     .thumb_set LPTIM2_IRQHandler,Default_Handler

  440. 

  441.     .weak   USB_IRQHandler

  442.     .thumb_set USB_IRQHandler,Default_Handler

  443. 

  444.     .weak   DMA2_Channel6_IRQHandler

  445.     .thumb_set DMA2_Channel6_IRQHandler,Default_Handler

  446. 

  447.     .weak   DMA2_Channel7_IRQHandler

  448.     .thumb_set DMA2_Channel7_IRQHandler,Default_Handler

  449. 

  450.     .weak   LPUART1_IRQHandler

  451.     .thumb_set LPUART1_IRQHandler,Default_Handler

  452. 

  453.     .weak   QUADSPI_IRQHandler

  454.     .thumb_set QUADSPI_IRQHandler,Default_Handler

  455. 

  456.     .weak   I2C3_EV_IRQHandler

  457.     .thumb_set I2C3_EV_IRQHandler,Default_Handler

  458. 

  459.     .weak   I2C3_ER_IRQHandler

  460.     .thumb_set I2C3_ER_IRQHandler,Default_Handler

  461. 

  462.     .weak   SAI1_IRQHandler

  463.     .thumb_set SAI1_IRQHandler,Default_Handler

  464. 

  465.     .weak   SWPMI1_IRQHandler

  466.     .thumb_set SWPMI1_IRQHandler,Default_Handler

  467. 

  468.     .weak   TSC_IRQHandler

  469.     .thumb_set TSC_IRQHandler,Default_Handler

  470. 

  471.     .weak   LCD_IRQHandler

  472.     .thumb_set LCD_IRQHandler,Default_Handler

  473. 

  474.     .weak   AES_IRQHandler

  475.     .thumb_set AES_IRQHandler,Default_Handler

  476. 

  477.     .weak   RNG_IRQHandler

  478.     .thumb_set RNG_IRQHandler,Default_Handler

  479. 

  480.     .weak   FPU_IRQHandler

  481.     .thumb_set FPU_IRQHandler,Default_Handler

  482. 

  483.     .weak   CRS_IRQHandler

  484.     .thumb_set CRS_IRQHandler,Default_Handler

  485. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/