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- /**
- ******************************************************************************
- * @file startup_stm32l151xba.s
- * @author MCD Application Team
- * @brief STM32L151XBA 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-M3 processor is in Thread mode,
- * priority is Privileged, and the Stack is set to Main.
- ******************************************************************************
- *
- * @attention
- *
- * Copyright (c) 2017 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-m3
- .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, 0xF108F85F
- /**
- * @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:
- /* 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
- bx lr
- .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 M3. 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_IRQHandler
- .word TAMPER_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 USB_HP_IRQHandler
- .word USB_LP_IRQHandler
- .word DAC_IRQHandler
- .word COMP_IRQHandler
- .word EXTI9_5_IRQHandler
- .word 0
- .word TIM9_IRQHandler
- .word TIM10_IRQHandler
- .word TIM11_IRQHandler
- .word TIM2_IRQHandler
- .word TIM3_IRQHandler
- .word TIM4_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 EXTI15_10_IRQHandler
- .word RTC_Alarm_IRQHandler
- .word USB_FS_WKUP_IRQHandler
- .word TIM6_IRQHandler
- .word TIM7_IRQHandler
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word 0
- .word BootRAM /* @0x108. This is for boot in RAM mode for
- STM32L151XBA devices. */
- /*******************************************************************************
- *
- * 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_IRQHandler
- .thumb_set PVD_IRQHandler,Default_Handler
- .weak TAMPER_STAMP_IRQHandler
- .thumb_set TAMPER_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 USB_HP_IRQHandler
- .thumb_set USB_HP_IRQHandler,Default_Handler
- .weak USB_LP_IRQHandler
- .thumb_set USB_LP_IRQHandler,Default_Handler
- .weak DAC_IRQHandler
- .thumb_set DAC_IRQHandler,Default_Handler
- .weak COMP_IRQHandler
- .thumb_set COMP_IRQHandler,Default_Handler
- .weak EXTI9_5_IRQHandler
- .thumb_set EXTI9_5_IRQHandler,Default_Handler
- .weak TIM9_IRQHandler
- .thumb_set TIM9_IRQHandler,Default_Handler
- .weak TIM10_IRQHandler
- .thumb_set TIM10_IRQHandler,Default_Handler
- .weak TIM11_IRQHandler
- .thumb_set TIM11_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 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 USB_FS_WKUP_IRQHandler
- .thumb_set USB_FS_WKUP_IRQHandler,Default_Handler
- .weak TIM6_IRQHandler
- .thumb_set TIM6_IRQHandler,Default_Handler
- .weak TIM7_IRQHandler
- .thumb_set TIM7_IRQHandler,Default_Handler
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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