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startup_stm32l562xx.s
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/**
******************************************************************************
* @file startup_stm32l562xx.s
* @author MCD Application Team
* @brief STM32L562xx 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,
* - Configure the clock system
* - Branches to main in the C library (which eventually
* calls main()).
* After Reset the Cortex-M33 processor is in Thread mode,
* priority is Privileged, and the Stack is set to Main.
******************************************************************************
* @attention
*
* Copyright (c) 2019 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
.syntax unified
.cpu cortex-m33
.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
.equ BootRAM, 0xF1E0F85F
/**
* @brief This is the code that gets called when the processor first
* starts execution following a reset event. Only the absolutely
* necessary set is performed, after which the application
* supplied main() routine is called.
* @param None
* @retval : None
*/
.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
ldr sp, =_estack /* set stack pointer */
/* Call the clock system initialization function.*/
bl SystemInit
/* Copy the data segment initializers from flash to SRAM */
movs r1, #0
b LoopCopyDataInit
CopyDataInit:
ldr r3, =_sidata
ldr r3, [r3, r1]
str r3, [r0, r1]
adds r1, r1, #4
LoopCopyDataInit:
ldr r0, =_sdata
ldr r3, =_edata
adds r2, r0, r1
cmp r2, r3
bcc CopyDataInit
ldr r2, =_sbss
b LoopFillZerobss
/* Zero fill the bss segment. */
FillZerobss:
movs r3, #0
str r3, [r2], #4
LoopFillZerobss:
ldr r3, = _ebss
cmp r2, r3
bcc FillZerobss
/* 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-M33. 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 SecureFault_Handler
.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 RTC_IRQHandler
.word RTC_S_IRQHandler
.word TAMP_IRQHandler
.word TAMP_S_IRQHandler
.word FLASH_IRQHandler
.word FLASH_S_IRQHandler
.word GTZC_IRQHandler
.word RCC_IRQHandler
.word RCC_S_IRQHandler
.word EXTI0_IRQHandler
.word EXTI1_IRQHandler
.word EXTI2_IRQHandler
.word EXTI3_IRQHandler
.word EXTI4_IRQHandler
.word EXTI5_IRQHandler
.word EXTI6_IRQHandler
.word EXTI7_IRQHandler
.word EXTI8_IRQHandler
.word EXTI9_IRQHandler
.word EXTI10_IRQHandler
.word EXTI11_IRQHandler
.word EXTI12_IRQHandler
.word EXTI13_IRQHandler
.word EXTI14_IRQHandler
.word EXTI15_IRQHandler
.word DMAMUX1_IRQHandler
.word DMAMUX1_S_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 DMA1_Channel8_IRQHandler
.word ADC1_2_IRQHandler
.word DAC_IRQHandler
.word FDCAN1_IT0_IRQHandler
.word FDCAN1_IT1_IRQHandler
.word TIM1_BRK_IRQHandler
.word TIM1_UP_IRQHandler
.word TIM1_TRG_COM_IRQHandler
.word TIM1_CC_IRQHandler
.word TIM2_IRQHandler
.word TIM3_IRQHandler
.word TIM4_IRQHandler
.word TIM5_IRQHandler
.word TIM6_IRQHandler
.word TIM7_IRQHandler
.word TIM8_BRK_IRQHandler
.word TIM8_UP_IRQHandler
.word TIM8_TRG_COM_IRQHandler
.word TIM8_CC_IRQHandler
.word I2C1_EV_IRQHandler
.word I2C1_ER_IRQHandler
.word I2C2_EV_IRQHandler
.word I2C2_ER_IRQHandler
.word SPI1_IRQHandler
.word SPI2_IRQHandler
.word USART1_IRQHandler
.word USART2_IRQHandler
.word USART3_IRQHandler
.word UART4_IRQHandler
.word UART5_IRQHandler
.word LPUART1_IRQHandler
.word LPTIM1_IRQHandler
.word LPTIM2_IRQHandler
.word TIM15_IRQHandler
.word TIM16_IRQHandler
.word TIM17_IRQHandler
.word COMP_IRQHandler
.word USB_FS_IRQHandler
.word CRS_IRQHandler
.word FMC_IRQHandler
.word OCTOSPI1_IRQHandler
.word 0
.word SDMMC1_IRQHandler
.word 0
.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 DMA2_Channel8_IRQHandler
.word I2C3_EV_IRQHandler
.word I2C3_ER_IRQHandler
.word SAI1_IRQHandler
.word SAI2_IRQHandler
.word TSC_IRQHandler
.word AES_IRQHandler
.word RNG_IRQHandler
.word FPU_IRQHandler
.word HASH_IRQHandler
.word PKA_IRQHandler
.word LPTIM3_IRQHandler
.word SPI3_IRQHandler
.word I2C4_ER_IRQHandler
.word I2C4_EV_IRQHandler
.word DFSDM1_FLT0_IRQHandler
.word DFSDM1_FLT1_IRQHandler
.word DFSDM1_FLT2_IRQHandler
.word DFSDM1_FLT3_IRQHandler
.word UCPD1_IRQHandler
.word ICACHE_IRQHandler
.word OTFDEC1_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 SecureFault_Handler
.thumb_set SecureFault_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 RTC_IRQHandler
.thumb_set RTC_IRQHandler,Default_Handler
.weak RTC_S_IRQHandler
.thumb_set RTC_S_IRQHandler,Default_Handler
.weak TAMP_IRQHandler
.thumb_set TAMP_IRQHandler,Default_Handler
.weak TAMP_S_IRQHandler
.thumb_set TAMP_S_IRQHandler,Default_Handler
.weak FLASH_IRQHandler
.thumb_set FLASH_IRQHandler,Default_Handler
.weak FLASH_S_IRQHandler
.thumb_set FLASH_S_IRQHandler,Default_Handler
.weak GTZC_IRQHandler
.thumb_set GTZC_IRQHandler,Default_Handler
.weak RCC_IRQHandler
.thumb_set RCC_IRQHandler,Default_Handler
.weak RCC_S_IRQHandler
.thumb_set RCC_S_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 EXTI5_IRQHandler
.thumb_set EXTI5_IRQHandler,Default_Handler
.weak EXTI6_IRQHandler
.thumb_set EXTI6_IRQHandler,Default_Handler
.weak EXTI7_IRQHandler
.thumb_set EXTI7_IRQHandler,Default_Handler
.weak EXTI8_IRQHandler
.thumb_set EXTI8_IRQHandler,Default_Handler
.weak EXTI9_IRQHandler
.thumb_set EXTI9_IRQHandler,Default_Handler
.weak EXTI10_IRQHandler
.thumb_set EXTI10_IRQHandler,Default_Handler
.weak EXTI11_IRQHandler
.thumb_set EXTI11_IRQHandler,Default_Handler
.weak EXTI12_IRQHandler
.thumb_set EXTI12_IRQHandler,Default_Handler
.weak EXTI13_IRQHandler
.thumb_set EXTI13_IRQHandler,Default_Handler
.weak EXTI14_IRQHandler
.thumb_set EXTI14_IRQHandler,Default_Handler
.weak EXTI15_IRQHandler
.thumb_set EXTI15_IRQHandler,Default_Handler
.weak DMAMUX1_IRQHandler
.thumb_set DMAMUX1_IRQHandler,Default_Handler
.weak DMAMUX1_S_IRQHandler
.thumb_set DMAMUX1_S_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 DMA1_Channel8_IRQHandler
.thumb_set DMA1_Channel8_IRQHandler,Default_Handler
.weak ADC1_2_IRQHandler
.thumb_set ADC1_2_IRQHandler,Default_Handler
.weak DAC_IRQHandler
.thumb_set DAC_IRQHandler,Default_Handler
.weak FDCAN1_IT0_IRQHandler
.thumb_set FDCAN1_IT0_IRQHandler,Default_Handler
.weak FDCAN1_IT1_IRQHandler
.thumb_set FDCAN1_IT1_IRQHandler,Default_Handler
.weak TIM1_BRK_IRQHandler
.thumb_set TIM1_BRK_IRQHandler,Default_Handler
.weak TIM1_UP_IRQHandler
.thumb_set TIM1_UP_IRQHandler,Default_Handler
.weak TIM1_TRG_COM_IRQHandler
.thumb_set TIM1_TRG_COM_IRQHandler,Default_Handler
.weak TIM1_CC_IRQHandler
.thumb_set TIM1_CC_IRQHandler,Default_Handler
.weak TIM2_IRQHandler
.thumb_set TIM2_IRQHandler,Default_Handler
.weak TIM3_IRQHandler
.thumb_set TIM3_IRQHandler,Default_Handler
.weak TIM4_IRQHandler
.thumb_set TIM4_IRQHandler,Default_Handler
.weak TIM5_IRQHandler
.thumb_set TIM5_IRQHandler,Default_Handler
.weak TIM6_IRQHandler
.thumb_set TIM6_IRQHandler,Default_Handler
.weak TIM7_IRQHandler
.thumb_set TIM7_IRQHandler,Default_Handler
.weak TIM8_BRK_IRQHandler
.thumb_set TIM8_BRK_IRQHandler,Default_Handler
.weak TIM8_UP_IRQHandler
.thumb_set TIM8_UP_IRQHandler,Default_Handler
.weak TIM8_TRG_COM_IRQHandler
.thumb_set TIM8_TRG_COM_IRQHandler,Default_Handler
.weak TIM8_CC_IRQHandler
.thumb_set TIM8_CC_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 I2C2_EV_IRQHandler
.thumb_set I2C2_EV_IRQHandler,Default_Handler
.weak I2C2_ER_IRQHandler
.thumb_set I2C2_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 USART2_IRQHandler
.thumb_set USART2_IRQHandler,Default_Handler
.weak USART3_IRQHandler
.thumb_set USART3_IRQHandler,Default_Handler
.weak UART4_IRQHandler
.thumb_set UART4_IRQHandler,Default_Handler
.weak UART5_IRQHandler
.thumb_set UART5_IRQHandler,Default_Handler
.weak LPUART1_IRQHandler
.thumb_set LPUART1_IRQHandler,Default_Handler
.weak LPTIM1_IRQHandler
.thumb_set LPTIM1_IRQHandler,Default_Handler
.weak LPTIM2_IRQHandler
.thumb_set LPTIM2_IRQHandler,Default_Handler
.weak TIM15_IRQHandler
.thumb_set TIM15_IRQHandler,Default_Handler
.weak TIM16_IRQHandler
.thumb_set TIM16_IRQHandler,Default_Handler
.weak TIM17_IRQHandler
.thumb_set TIM17_IRQHandler,Default_Handler
.weak COMP_IRQHandler
.thumb_set COMP_IRQHandler,Default_Handler
.weak USB_FS_IRQHandler
.thumb_set USB_FS_IRQHandler,Default_Handler
.weak CRS_IRQHandler
.thumb_set CRS_IRQHandler,Default_Handler
.weak FMC_IRQHandler
.thumb_set FMC_IRQHandler,Default_Handler
.weak OCTOSPI1_IRQHandler
.thumb_set OCTOSPI1_IRQHandler,Default_Handler
.weak SDMMC1_IRQHandler
.thumb_set SDMMC1_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 DMA2_Channel8_IRQHandler
.thumb_set DMA2_Channel8_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 SAI1_IRQHandler
.thumb_set SAI1_IRQHandler,Default_Handler
.weak SAI2_IRQHandler
.thumb_set SAI2_IRQHandler,Default_Handler
.weak TSC_IRQHandler
.thumb_set TSC_IRQHandler,Default_Handler
.weak AES_IRQHandler
.thumb_set AES_IRQHandler,Default_Handler
.weak RNG_IRQHandler
.thumb_set RNG_IRQHandler,Default_Handler
.weak FPU_IRQHandler
.thumb_set FPU_IRQHandler,Default_Handler
.weak HASH_IRQHandler
.thumb_set HASH_IRQHandler,Default_Handler
.weak PKA_IRQHandler
.thumb_set PKA_IRQHandler,Default_Handler
.weak LPTIM3_IRQHandler
.thumb_set LPTIM3_IRQHandler,Default_Handler
.weak SPI3_IRQHandler
.thumb_set SPI3_IRQHandler,Default_Handler
.weak I2C4_ER_IRQHandler
.thumb_set I2C4_ER_IRQHandler,Default_Handler
.weak I2C4_EV_IRQHandler
.thumb_set I2C4_EV_IRQHandler,Default_Handler
.weak DFSDM1_FLT0_IRQHandler
.thumb_set DFSDM1_FLT0_IRQHandler,Default_Handler
.weak DFSDM1_FLT1_IRQHandler
.thumb_set DFSDM1_FLT1_IRQHandler,Default_Handler
.weak DFSDM1_FLT2_IRQHandler
.thumb_set DFSDM1_FLT2_IRQHandler,Default_Handler
.weak DFSDM1_FLT3_IRQHandler
.thumb_set DFSDM1_FLT3_IRQHandler,Default_Handler
.weak UCPD1_IRQHandler
.thumb_set UCPD1_IRQHandler,Default_Handler
.weak ICACHE_IRQHandler
.thumb_set ICACHE_IRQHandler,Default_Handler
.weak OTFDEC1_IRQHandler
.thumb_set OTFDEC1_IRQHandler,Default_Handler