| /** |
| ****************************************************************************** |
| * @file startup_stm32l552xx.s |
| * @author MCD Application Team |
| * @brief STM32L552xx 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 |
| * |
| * <h2><center>© Copyright (c) 2019 STMicroelectronics. |
| * All rights reserved.</center></h2> |
| * |
| * This software component is licensed by ST under Apache License, Version 2.0, |
| * 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/Apache-2.0 |
| * |
| ****************************************************************************** |
| */ |
| |
| .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 0 |
| .word RNG_IRQHandler |
| .word FPU_IRQHandler |
| .word HASH_IRQHandler |
| .word 0 |
| .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 0 |
| |
| |
| /******************************************************************************* |
| * |
| * 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 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 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 |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |