/** ****************************************************************************** * @file startup_stm32u083xx.s * @author Auto-generated by STM32CubeIDE * @brief STM32U083xx device 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 * - Branches to main in the C library (which eventually * calls main()). ****************************************************************************** * @attention * * Copyright (c) 2023 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-m0plus .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 /** * @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 r0, =_estack mov sp, r0 /* set stack pointer */ /* 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 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 STM32U083xx vector table. 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 g_pfnVectors: .word _estack .word Reset_Handler .word NMI_Handler .word HardFault_Handler .word 0 .word 0 .word 0 .word 0 .word 0 .word 0 .word 0 .word SVC_Handler .word 0 .word 0 .word PendSV_Handler .word SysTick_Handler .word WWDG_IWDG_IRQHandler /* Window watchdog interrupt */ .word PVD_PVM_IRQHandler /* PVD/PVM1/PVM2/PVM3 interrupt (combined with EXTI lines 16 and 19 and 20 and 21) */ .word RTC_TAMP_IRQHandler /* RTC and TAMP interrupts(combined EXTI lines 19 and 21) */ .word FLASH_ECC_IRQHandler /* FLASH global interrupt */ .word RCC_CRS_IRQHandler /* RCC and CRS global interrupt */ .word EXTI0_1_IRQHandler /* EXTI lines 0 and 1 interrupt */ .word EXTI2_3_IRQHandler /* EXTI lines 2 and 3 interrupt */ .word EXTI4_15_IRQHandler /* EXTI lines 4 to 15 interrupt */ .word USB_DRD_FS_IRQHandler /* USB global interrupt (combined with EXTI line 33) */ .word DMA1_Channel1_IRQHandler /* DMA1 channel 1 interrupt */ .word DMA1_Channel2_3_IRQHandler /* DMA1 channel 2 and 3 interrupts */ .word DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX_OVR_IRQHandler /* DMA1 channel 4, 5, 6, 7, DMAMUX overrun, DMA2 channel 1, 2, 3, 4, 5 interrupts */ .word ADC_COMP1_2_IRQHandler /* ADC and COMP interrupts (ADC combined with EXTI lines 17 and 18) */ .word TIM1_BRK_UP_TRG_COM_IRQHandler/* TIM1 break, update, trigger and commutation interrupts */ .word TIM1_CC_IRQHandler /* TIM1 Capture Compare interrupt */ .word TIM2_IRQHandler /* TIM2 global interrupt */ .word TIM3_IRQHandler /* TIM3 global interrupt */ .word TIM6_DAC_LPTIM1_IRQHandler /* TIM6, LPTIM1 and DAC global interrupt (combined with EXTI line 29) */ .word TIM7_LPTIM2_IRQHandler /* TIM7 and LPTIM2 global interrupt (combined with EXTI line 30) */ .word TIM15_LPTIM3_IRQHandler /* TIM15 and LPTIM3 global interrupt (combined with EXTI line 29) */ .word TIM16_IRQHandler /* TIM16 global interrupt */ .word TSC_IRQHandler /* TSC global interrupt */ .word LCD_IRQHandler /* LCD global interrupt (combined with EXTI line 32) */ .word I2C1_IRQHandler /* I2C1 global interrupt (combined with EXTI line 23) */ .word I2C2_3_4_IRQHandler /* I2C2/3/4 global interrupt */ .word SPI1_IRQHandler /* SPI1 global interrupt */ .word SPI2_3_IRQHandler /* SPI2/3 global interrupt */ .word USART1_IRQHandler /* USART1 global interrupt (combined with EXTI line 25) */ .word USART2_LPUART2_IRQHandler /* USART2 and LPUART2 global interrupt (combined with EXTI lines 26 and 35) */ .word USART3_LPUART1_IRQHandler /* USART3 and LPUART1 global interrupt (combined with EXTI lines 24 and 28) */ .word USART4_LPUART3_IRQHandler /* USART4 and LPUART3 global interrupt (combined with EXTI lines 20 and 34) */ .word RNG_CRYP_IRQHandler /* RNG and CRYPTO global interrupts */ .size g_pfnVectors, .-g_pfnVectors /******************************************************************************* * * 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 SVC_Handler .thumb_set SVC_Handler,Default_Handler .weak PendSV_Handler .thumb_set PendSV_Handler,Default_Handler .weak SysTick_Handler .thumb_set SysTick_Handler,Default_Handler .weak WWDG_IWDG_IRQHandler .thumb_set WWDG_IWDG_IRQHandler,Default_Handler .weak PVD_PVM_IRQHandler .thumb_set PVD_PVM_IRQHandler,Default_Handler .weak RTC_TAMP_IRQHandler .thumb_set RTC_TAMP_IRQHandler,Default_Handler .weak FLASH_ECC_IRQHandler .thumb_set FLASH_ECC_IRQHandler,Default_Handler .weak RCC_CRS_IRQHandler .thumb_set RCC_CRS_IRQHandler,Default_Handler .weak EXTI0_1_IRQHandler .thumb_set EXTI0_1_IRQHandler,Default_Handler .weak EXTI2_3_IRQHandler .thumb_set EXTI2_3_IRQHandler,Default_Handler .weak EXTI4_15_IRQHandler .thumb_set EXTI4_15_IRQHandler,Default_Handler .weak USB_DRD_FS_IRQHandler .thumb_set USB_DRD_FS_IRQHandler,Default_Handler .weak DMA1_Channel1_IRQHandler .thumb_set DMA1_Channel1_IRQHandler,Default_Handler .weak DMA1_Channel2_3_IRQHandler .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler .weak DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX_OVR_IRQHandler .thumb_set DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX_OVR_IRQHandler,Default_Handler .weak ADC_COMP1_2_IRQHandler .thumb_set ADC_COMP1_2_IRQHandler,Default_Handler .weak TIM1_BRK_UP_TRG_COM_IRQHandler .thumb_set TIM1_BRK_UP_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 TIM6_DAC_LPTIM1_IRQHandler .thumb_set TIM6_DAC_LPTIM1_IRQHandler,Default_Handler .weak TIM7_LPTIM2_IRQHandler .thumb_set TIM7_LPTIM2_IRQHandler,Default_Handler .weak TIM15_LPTIM3_IRQHandler .thumb_set TIM15_LPTIM3_IRQHandler,Default_Handler .weak TIM16_IRQHandler .thumb_set TIM16_IRQHandler,Default_Handler .weak TSC_IRQHandler .thumb_set TSC_IRQHandler,Default_Handler .weak LCD_IRQHandler .thumb_set LCD_IRQHandler,Default_Handler .weak I2C1_IRQHandler .thumb_set I2C1_IRQHandler,Default_Handler .weak I2C2_3_4_IRQHandler .thumb_set I2C2_3_4_IRQHandler,Default_Handler .weak SPI1_IRQHandler .thumb_set SPI1_IRQHandler,Default_Handler .weak SPI2_3_IRQHandler .thumb_set SPI2_3_IRQHandler,Default_Handler .weak USART1_IRQHandler .thumb_set USART1_IRQHandler,Default_Handler .weak USART2_LPUART2_IRQHandler .thumb_set USART2_LPUART2_IRQHandler,Default_Handler .weak USART3_LPUART1_IRQHandler .thumb_set USART3_LPUART1_IRQHandler,Default_Handler .weak USART4_LPUART3_IRQHandler .thumb_set USART4_LPUART3_IRQHandler,Default_Handler .weak RNG_CRYP_IRQHandler .thumb_set RNG_CRYP_IRQHandler,Default_Handler