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Diffstat (limited to 'example/startup_stm32u083xx.s')
| -rw-r--r-- | example/startup_stm32u083xx.s | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/example/startup_stm32u083xx.s b/example/startup_stm32u083xx.s new file mode 100644 index 0000000..6190254 --- /dev/null +++ b/example/startup_stm32u083xx.s @@ -0,0 +1,296 @@ +/** + ****************************************************************************** + * @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 + |