/** ****************************************************************************** * @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 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-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 */ /* 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 the clock system intitialization function.*/ /* this is dumb */ ldr r0, =__init_array_start ldr r1, =SystemInit str r1, [r0] bl SystemInit bl _start bx lr 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 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/