| /** |
| ****************************************************************************** |
| * @file startup_stm32l431xx.s |
| * @author MCD Application Team |
| * @brief STM32L431xx devices vector table for 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-M4 processor is in Thread mode, |
| * priority is Privileged, and the Stack is set to Main. |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© Copyright (c) 2017 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-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 |
| |
| .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-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_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 CAN1_TX_IRQHandler |
| .word CAN1_RX0_IRQHandler |
| .word CAN1_RX1_IRQHandler |
| .word CAN1_SCE_IRQHandler |
| .word EXTI9_5_IRQHandler |
| .word TIM1_BRK_TIM15_IRQHandler |
| .word TIM1_UP_TIM16_IRQHandler |
| .word TIM1_TRG_COM_IRQHandler |
| .word TIM1_CC_IRQHandler |
| .word TIM2_IRQHandler |
| .word 0 |
| .word 0 |
| .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 EXTI15_10_IRQHandler |
| .word RTC_Alarm_IRQHandler |
| .word 0 |
| .word 0 |
| .word 0 |
| .word 0 |
| .word 0 |
| .word 0 |
| .word 0 |
| .word SDMMC1_IRQHandler |
| .word 0 |
| .word SPI3_IRQHandler |
| .word 0 |
| .word 0 |
| .word TIM6_DAC_IRQHandler |
| .word TIM7_IRQHandler |
| .word DMA2_Channel1_IRQHandler |
| .word DMA2_Channel2_IRQHandler |
| .word DMA2_Channel3_IRQHandler |
| .word DMA2_Channel4_IRQHandler |
| .word DMA2_Channel5_IRQHandler |
| .word 0 |
| .word 0 |
| .word 0 |
| .word COMP_IRQHandler |
| .word LPTIM1_IRQHandler |
| .word LPTIM2_IRQHandler |
| .word 0 |
| .word DMA2_Channel6_IRQHandler |
| .word DMA2_Channel7_IRQHandler |
| .word LPUART1_IRQHandler |
| .word QUADSPI_IRQHandler |
| .word I2C3_EV_IRQHandler |
| .word I2C3_ER_IRQHandler |
| .word SAI1_IRQHandler |
| .word 0 |
| .word SWPMI1_IRQHandler |
| .word TSC_IRQHandler |
| .word 0 |
| .word 0 |
| .word RNG_IRQHandler |
| .word FPU_IRQHandler |
| .word CRS_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_IRQHandler |
| .thumb_set TAMP_STAMP_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 CAN1_TX_IRQHandler |
| .thumb_set CAN1_TX_IRQHandler,Default_Handler |
| |
| .weak CAN1_RX0_IRQHandler |
| .thumb_set CAN1_RX0_IRQHandler,Default_Handler |
| |
| .weak CAN1_RX1_IRQHandler |
| .thumb_set CAN1_RX1_IRQHandler,Default_Handler |
| |
| .weak CAN1_SCE_IRQHandler |
| .thumb_set CAN1_SCE_IRQHandler,Default_Handler |
| |
| .weak EXTI9_5_IRQHandler |
| .thumb_set EXTI9_5_IRQHandler,Default_Handler |
| |
| .weak TIM1_BRK_TIM15_IRQHandler |
| .thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler |
| |
| .weak TIM1_UP_TIM16_IRQHandler |
| .thumb_set TIM1_UP_TIM16_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 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 EXTI15_10_IRQHandler |
| .thumb_set EXTI15_10_IRQHandler,Default_Handler |
| |
| .weak RTC_Alarm_IRQHandler |
| .thumb_set RTC_Alarm_IRQHandler,Default_Handler |
| |
| .weak SDMMC1_IRQHandler |
| .thumb_set SDMMC1_IRQHandler,Default_Handler |
| |
| .weak SPI3_IRQHandler |
| .thumb_set SPI3_IRQHandler,Default_Handler |
| |
| .weak TIM6_DAC_IRQHandler |
| .thumb_set TIM6_DAC_IRQHandler,Default_Handler |
| |
| .weak TIM7_IRQHandler |
| .thumb_set TIM7_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 COMP_IRQHandler |
| .thumb_set COMP_IRQHandler,Default_Handler |
| |
| .weak LPTIM1_IRQHandler |
| .thumb_set LPTIM1_IRQHandler,Default_Handler |
| |
| .weak LPTIM2_IRQHandler |
| .thumb_set LPTIM2_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 LPUART1_IRQHandler |
| .thumb_set LPUART1_IRQHandler,Default_Handler |
| |
| .weak QUADSPI_IRQHandler |
| .thumb_set QUADSPI_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 SWPMI1_IRQHandler |
| .thumb_set SWPMI1_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 CRS_IRQHandler |
| .thumb_set CRS_IRQHandler,Default_Handler |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
