xref: /btstack/port/stm32-wb55xx-nucleo-freertos/startup_stm32wb55xx_cm4.s (revision 0561b2d8d5dba972c7daa57d5e677f7a1327edfd)

/**
  ******************************************************************************
  * @file      startup_stm32wb55xx_cm4.s
  * @author    MCD Application Team
  * @brief     STM32WB55xx devices vector table GCC toolchain.
  *            This module performs:
  *                - Set the initial SP
  *                - Set the initial PC == Reset_Handler,
  *                - Set the vector table entries with the exceptions ISR address
  *                - Branches to main in the C library (which eventually
  *                  calls main()).
  *            After Reset the Cortex-M4 processor is in Thread mode,
  *            priority is Privileged, and the Stack is set to Main.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

  .syntax unified
	.cpu cortex-m4
	.fpu softvfp
	.thumb

.global	g_pfnVectors
.global	Default_Handler

/* start address for the initialization values of the .data section.
defined in linker script */
.word	_sidata
/* start address for the .data section. defined in linker script */
.word	_sdata
/* end address for the .data section. defined in linker script */
.word	_edata
/* start address for the .bss section. defined in linker script */
.word	_sbss
/* end address for the .bss section. defined in linker script */
.word	_ebss

  .section .text.Reset_Handler
  .weak Reset_Handler
  .type Reset_Handler, %function
Reset_Handler:
  ldr   r0, =_estack
  mov   sp, r0          /* set stack pointer */

/* Copy the data segment initializers from flash to SRAM */
  ldr r0, =_sdata
  ldr r1, =_edata
  ldr r2, =_sidata
  movs r3, #0
  b	LoopCopyDataInit

CopyDataInit:
  ldr r4, [r2, r3]
  str r4, [r0, r3]
  adds r3, r3, #4

LoopCopyDataInit:
  adds r4, r0, r3
  cmp r4, r1
  bcc CopyDataInit

/* Zero fill the bss segment. */
  ldr r2, =_sbss
  ldr r4, =_ebss
  movs r3, #0
  b LoopFillZerobss

FillZerobss:
  str  r3, [r2]
  adds r2, r2, #4

LoopFillZerobss:
  cmp r2, r4
  bcc FillZerobss

/* Call the clock system intitialization function.*/
  bl  SystemInit
/* Call static constructors */
  bl __libc_init_array
/* Call the application s entry point.*/
	bl	main

LoopForever:
  b LoopForever

.size	Reset_Handler, .-Reset_Handler

/**
 * @brief  This is the code that gets called when the processor receives an
 *         unexpected interrupt.  This simply enters an infinite loop, preserving
 *         the system state for examination by a debugger.
 *
 * @param  None
 * @retval None
*/
  .section .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
	b	Infinite_Loop
	.size	Default_Handler, .-Default_Handler
/******************************************************************************
*
* The minimal vector table for a Cortex-M4.  Note that the proper constructs
* must be placed on this to ensure that it ends up at physical address
* 0x0000.0000.
*
******************************************************************************/
 	.section	.isr_vector,"a",%progbits
	.type	g_pfnVectors, %object
	.size	g_pfnVectors, .-g_pfnVectors


g_pfnVectors:
  .word _estack
  .word Reset_Handler
	.word	NMI_Handler
  .word HardFault_Handler
  .word MemManage_Handler
  .word BusFault_Handler
  .word UsageFault_Handler
  .word 0
  .word 0
  .word 0
  .word 0
  .word SVC_Handler
  .word DebugMon_Handler
  .word 0
  .word PendSV_Handler
  .word SysTick_Handler
  .word WWDG_IRQHandler
  .word PVD_PVM_IRQHandler
  .word TAMP_STAMP_LSECSS_IRQHandler
  .word RTC_WKUP_IRQHandler
  .word FLASH_IRQHandler
  .word RCC_IRQHandler
  .word EXTI0_IRQHandler
  .word EXTI1_IRQHandler
  .word EXTI2_IRQHandler
  .word EXTI3_IRQHandler
  .word EXTI4_IRQHandler
  .word DMA1_Channel1_IRQHandler
  .word DMA1_Channel2_IRQHandler
  .word DMA1_Channel3_IRQHandler
  .word DMA1_Channel4_IRQHandler
  .word DMA1_Channel5_IRQHandler
  .word DMA1_Channel6_IRQHandler
  .word DMA1_Channel7_IRQHandler
  .word ADC1_IRQHandler
  .word USB_HP_IRQHandler
  .word USB_LP_IRQHandler
  .word C2SEV_PWR_C2H_IRQHandler
  .word COMP_IRQHandler
  .word EXTI9_5_IRQHandler
  .word TIM1_BRK_IRQHandler
  .word TIM1_UP_TIM16_IRQHandler
  .word TIM1_TRG_COM_TIM17_IRQHandler
  .word TIM1_CC_IRQHandler
  .word TIM2_IRQHandler
  .word PKA_IRQHandler
  .word I2C1_EV_IRQHandler
  .word I2C1_ER_IRQHandler
  .word I2C3_EV_IRQHandler
  .word I2C3_ER_IRQHandler
  .word SPI1_IRQHandler
  .word SPI2_IRQHandler
  .word USART1_IRQHandler
  .word LPUART1_IRQHandler
  .word SAI1_IRQHandler
  .word TSC_IRQHandler
  .word EXTI15_10_IRQHandler
  .word RTC_Alarm_IRQHandler
  .word CRS_IRQHandler
  .word PWR_SOTF_BLEACT_802ACT_RFPHASE_IRQHandler
  .word IPCC_C1_RX_IRQHandler
  .word IPCC_C1_TX_IRQHandler
  .word HSEM_IRQHandler
  .word LPTIM1_IRQHandler
  .word LPTIM2_IRQHandler
  .word LCD_IRQHandler
  .word QUADSPI_IRQHandler
  .word AES1_IRQHandler
  .word AES2_IRQHandler
  .word RNG_IRQHandler
  .word FPU_IRQHandler
  .word DMA2_Channel1_IRQHandler
  .word DMA2_Channel2_IRQHandler
  .word DMA2_Channel3_IRQHandler
  .word DMA2_Channel4_IRQHandler
  .word DMA2_Channel5_IRQHandler
  .word DMA2_Channel6_IRQHandler
  .word DMA2_Channel7_IRQHandler
  .word DMAMUX1_OVR_IRQHandler

/*******************************************************************************
*
* Provide weak aliases for each Exception handler to the Default_Handler.
* As they are weak aliases, any function with the same name will override
* this definition.
*
*******************************************************************************/
  .weak	NMI_Handler
  .thumb_set NMI_Handler,Default_Handler

  .weak  HardFault_Handler
  .thumb_set HardFault_Handler,Default_Handler

  .weak  MemManage_Handler
  .thumb_set MemManage_Handler,Default_Handler

  .weak  BusFault_Handler
  .thumb_set BusFault_Handler,Default_Handler

  .weak  UsageFault_Handler
  .thumb_set UsageFault_Handler,Default_Handler

  .weak  SVC_Handler
  .thumb_set SVC_Handler,Default_Handler

  .weak  DebugMon_Handler
  .thumb_set DebugMon_Handler,Default_Handler

  .weak  PendSV_Handler
  .thumb_set PendSV_Handler,Default_Handler

  .weak  SysTick_Handler
  .thumb_set SysTick_Handler,Default_Handler

  .weak  WWDG_IRQHandler
  .thumb_set WWDG_IRQHandler,Default_Handler

  .weak  PVD_PVM_IRQHandler
  .thumb_set PVD_PVM_IRQHandler,Default_Handler

  .weak  TAMP_STAMP_LSECSS_IRQHandler
  .thumb_set TAMP_STAMP_LSECSS_IRQHandler,Default_Handler

  .weak  RTC_WKUP_IRQHandler
  .thumb_set RTC_WKUP_IRQHandler,Default_Handler

  .weak  FLASH_IRQHandler
  .thumb_set FLASH_IRQHandler,Default_Handler

  .weak  RCC_IRQHandler
  .thumb_set RCC_IRQHandler,Default_Handler

  .weak  EXTI0_IRQHandler
  .thumb_set EXTI0_IRQHandler,Default_Handler

  .weak  EXTI1_IRQHandler
  .thumb_set EXTI1_IRQHandler,Default_Handler

  .weak  EXTI2_IRQHandler
  .thumb_set EXTI2_IRQHandler,Default_Handler

  .weak  EXTI3_IRQHandler
  .thumb_set EXTI3_IRQHandler,Default_Handler

  .weak  EXTI4_IRQHandler
  .thumb_set EXTI4_IRQHandler,Default_Handler

  .weak  DMA1_Channel1_IRQHandler
  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler

  .weak  DMA1_Channel2_IRQHandler
  .thumb_set DMA1_Channel2_IRQHandler,Default_Handler

  .weak  DMA1_Channel3_IRQHandler
  .thumb_set DMA1_Channel3_IRQHandler,Default_Handler

  .weak  DMA1_Channel4_IRQHandler
  .thumb_set DMA1_Channel4_IRQHandler,Default_Handler

  .weak  DMA1_Channel5_IRQHandler
  .thumb_set DMA1_Channel5_IRQHandler,Default_Handler

  .weak  DMA1_Channel6_IRQHandler
  .thumb_set DMA1_Channel6_IRQHandler,Default_Handler

  .weak  DMA1_Channel7_IRQHandler
  .thumb_set DMA1_Channel7_IRQHandler,Default_Handler

  .weak  ADC1_IRQHandler
  .thumb_set ADC1_IRQHandler,Default_Handler

  .weak  USB_HP_IRQHandler
  .thumb_set USB_HP_IRQHandler,Default_Handler

  .weak  USB_LP_IRQHandler
  .thumb_set USB_LP_IRQHandler,Default_Handler

  .weak  C2SEV_PWR_C2H_IRQHandler
  .thumb_set C2SEV_PWR_C2H_IRQHandler,Default_Handler

  .weak  COMP_IRQHandler
  .thumb_set COMP_IRQHandler,Default_Handler

  .weak  EXTI9_5_IRQHandler
  .thumb_set EXTI9_5_IRQHandler,Default_Handler

  .weak  TIM1_BRK_IRQHandler
  .thumb_set TIM1_BRK_IRQHandler,Default_Handler

  .weak  TIM1_UP_TIM16_IRQHandler
  .thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler

  .weak  TIM1_TRG_COM_TIM17_IRQHandler
  .thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler

  .weak  TIM1_CC_IRQHandler
  .thumb_set TIM1_CC_IRQHandler,Default_Handler

  .weak  TIM2_IRQHandler
  .thumb_set TIM2_IRQHandler,Default_Handler

  .weak  PKA_IRQHandler
  .thumb_set PKA_IRQHandler,Default_Handler

  .weak  I2C1_EV_IRQHandler
  .thumb_set I2C1_EV_IRQHandler,Default_Handler

  .weak  I2C1_ER_IRQHandler
  .thumb_set I2C1_ER_IRQHandler,Default_Handler

  .weak  I2C3_EV_IRQHandler
  .thumb_set I2C3_EV_IRQHandler,Default_Handler

  .weak  I2C3_ER_IRQHandler
  .thumb_set I2C3_ER_IRQHandler,Default_Handler

  .weak  SPI1_IRQHandler
  .thumb_set SPI1_IRQHandler,Default_Handler

  .weak  SPI2_IRQHandler
  .thumb_set SPI2_IRQHandler,Default_Handler

  .weak  USART1_IRQHandler
  .thumb_set USART1_IRQHandler,Default_Handler

  .weak  LPUART1_IRQHandler
  .thumb_set LPUART1_IRQHandler,Default_Handler

  .weak  SAI1_IRQHandler
  .thumb_set SAI1_IRQHandler,Default_Handler

  .weak  TSC_IRQHandler
  .thumb_set TSC_IRQHandler,Default_Handler

  .weak  EXTI15_10_IRQHandler
  .thumb_set EXTI15_10_IRQHandler,Default_Handler

  .weak  RTC_Alarm_IRQHandler
  .thumb_set RTC_Alarm_IRQHandler,Default_Handler

  .weak  CRS_IRQHandler
  .thumb_set CRS_IRQHandler,Default_Handler

  .weak  PWR_SOTF_BLEACT_802ACT_RFPHASE_IRQHandler
  .thumb_set PWR_SOTF_BLEACT_802ACT_RFPHASE_IRQHandler,Default_Handler

  .weak  IPCC_C1_RX_IRQHandler
  .thumb_set IPCC_C1_RX_IRQHandler,Default_Handler

  .weak  IPCC_C1_TX_IRQHandler
  .thumb_set IPCC_C1_TX_IRQHandler,Default_Handler

  .weak  HSEM_IRQHandler
  .thumb_set HSEM_IRQHandler,Default_Handler

  .weak  LPTIM1_IRQHandler
  .thumb_set LPTIM1_IRQHandler,Default_Handler

  .weak  LPTIM2_IRQHandler
  .thumb_set LPTIM2_IRQHandler,Default_Handler

  .weak  LCD_IRQHandler
  .thumb_set LCD_IRQHandler,Default_Handler

  .weak  QUADSPI_IRQHandler
  .thumb_set QUADSPI_IRQHandler,Default_Handler

  .weak  AES1_IRQHandler
  .thumb_set AES1_IRQHandler,Default_Handler

  .weak  AES2_IRQHandler
  .thumb_set AES2_IRQHandler,Default_Handler

  .weak  RNG_IRQHandler
  .thumb_set RNG_IRQHandler,Default_Handler

  .weak  FPU_IRQHandler
  .thumb_set FPU_IRQHandler,Default_Handler

  .weak  DMA2_Channel1_IRQHandler
  .thumb_set DMA2_Channel1_IRQHandler,Default_Handler

  .weak  DMA2_Channel2_IRQHandler
  .thumb_set DMA2_Channel2_IRQHandler,Default_Handler

  .weak  DMA2_Channel3_IRQHandler
  .thumb_set DMA2_Channel3_IRQHandler,Default_Handler

  .weak  DMA2_Channel4_IRQHandler
  .thumb_set DMA2_Channel4_IRQHandler,Default_Handler

  .weak  DMA2_Channel5_IRQHandler
  .thumb_set DMA2_Channel5_IRQHandler,Default_Handler

  .weak  DMA2_Channel6_IRQHandler
  .thumb_set DMA2_Channel6_IRQHandler,Default_Handler

  .weak  DMA2_Channel7_IRQHandler
  .thumb_set DMA2_Channel7_IRQHandler,Default_Handler

  .weak  DMAMUX1_OVR_IRQHandler
  .thumb_set DMAMUX1_OVR_IRQHandler,Default_Handler

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