/** ****************************************************************************** * @file startup_stm32.s dedicated to STM32F411VETx device * @author Ac6 * @version V1.0.0 * @date 2018-03-02 ****************************************************************************** */ .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 /** * @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 the clock system intitialization function.*/ bl SystemInit /* 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 STM32F411VETx 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 .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 0 /* Reserved */ .word PVD_IRQHandler /* PVD through EXTI line detection interrupt */ .word TAMP_STAMP_IRQHandler /* Tamper and TimeStamp interrupts through the EXTI line */ .word RTC_WKUP_IRQHandler /* RTC Wakeup interrupt through the EXTI line */ .word FLASH_IRQHandler /* FLASH global interrupt */ .word RCC_IRQHandler /* RCC global interrupt */ .word EXTI0_IRQHandler /* EXTI Line0 interrupt */ .word EXTI1_IRQHandler /* EXTI Line1 interrupt */ .word EXTI2_IRQHandler /* EXTI Line2 interrupt */ .word EXTI3_IRQHandler /* EXTI Line3 interrupt */ .word EXTI4_IRQHandler /* EXTI Line4 interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word ADC_IRQHandler /* ADC1 global interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word EXTI9_5_IRQHandler /* EXTI Line[9:5] interrupts */ .word TIM1_BRK_TIM9_IRQHandler /* TIM1 Break interrupt and TIM9 global interrupt */ .word TIM1_UP_TIM10_IRQHandler /* TIM1 Update interrupt and TIM10 global interrupt */ .word TIM1_TRG_COM_TIM11_IRQHandler /* TIM1 Trigger and Commutation interrupts and TIM11 global interrupt */ .word TIM1_CC_IRQHandler /* TIM1 Capture Compare interrupt */ .word TIM2_IRQHandler /* TIM2 global interrupt */ .word TIM3_IRQHandler /* TIM3 global interrupt */ .word 0 /* Reserved */ .word I2C1_EV_IRQHandler /* I2C1 event interrupt */ .word I2C1_ER_IRQHandler /* I2C1 error interrupt */ .word I2C2_EV_IRQHandler /* I2C2 event interrupt */ .word I2C2_ER_IRQHandler /* I2C2 error interrupt */ .word SPI1_IRQHandler /* SPI1 global interrupt */ .word SPI2_IRQHandler /* SPI2 global interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word EXTI15_10_IRQHandler /* EXTI Line[15:10] interrupts */ .word RTC_Alarm_IRQHandler /* RTC Alarms (A and B) through EXTI line interrupt */ .word OTG_FS_WKUP_IRQHandler /* USB On-The-Go FS Wakeup through EXTI line interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word SDIO_IRQHandler /* SDIO global interrupt */ .word 0 /* Reserved */ .word SPI3_IRQHandler /* SPI3 global interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word OTG_FS_IRQHandler /* USB On The Go FS global interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word I2C3_EV_IRQHandler /* I2C3 event interrupt */ .word I2C3_ER_IRQHandler /* I2C3 error interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word FPU_IRQHandler /* Floating point interrupt */ .word 0 /* Reserved */ .word 0 /* Reserved */ .word SPI4_IRQHandler /* SPI4 global interrupt */ /******************************************************************************* * * 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 PVD_IRQHandler .thumb_set PVD_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 ADC_IRQHandler .thumb_set ADC_IRQHandler,Default_Handler .weak EXTI9_5_IRQHandler .thumb_set EXTI9_5_IRQHandler,Default_Handler .weak TIM1_BRK_TIM9_IRQHandler .thumb_set TIM1_BRK_TIM9_IRQHandler,Default_Handler .weak TIM1_UP_TIM10_IRQHandler .thumb_set TIM1_UP_TIM10_IRQHandler,Default_Handler .weak TIM1_TRG_COM_TIM11_IRQHandler .thumb_set TIM1_TRG_COM_TIM11_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 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 EXTI15_10_IRQHandler .thumb_set EXTI15_10_IRQHandler,Default_Handler .weak RTC_Alarm_IRQHandler .thumb_set RTC_Alarm_IRQHandler,Default_Handler .weak OTG_FS_WKUP_IRQHandler .thumb_set OTG_FS_WKUP_IRQHandler,Default_Handler .weak SDIO_IRQHandler .thumb_set SDIO_IRQHandler,Default_Handler .weak SPI3_IRQHandler .thumb_set SPI3_IRQHandler,Default_Handler .weak OTG_FS_IRQHandler .thumb_set OTG_FS_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 FPU_IRQHandler .thumb_set FPU_IRQHandler,Default_Handler .weak SPI4_IRQHandler .thumb_set SPI4_IRQHandler,Default_Handler .weak SystemInit /************************ (C) COPYRIGHT Ac6 *****END OF FILE****/