506 lines
22 KiB
ArmAsm
506 lines
22 KiB
ArmAsm
/**
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******************************************************************************
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* @file startup_stm32f407xx.s
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* @author MCD Application Team
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* @brief STM32F407xx Devices vector table for GCC based toolchains.
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* This module performs:
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* - Set the initial SP
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* - Set the initial PC == Reset_Handler,
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* - Set the vector table entries with the exceptions ISR address
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* - Branches to main in the C library (which eventually
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* calls main()).
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* After Reset the Cortex-M4 processor is in Thread mode,
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* priority is Privileged, and the Stack is set to Main.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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.syntax unified
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.cpu cortex-m4
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.fpu softvfp
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.thumb
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.global g_pfnVectors
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.global Default_Handler
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/* start address for the initialization values of the .data section.
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defined in linker script */
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.word _sidata
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/* start address for the .data section. defined in linker script */
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.word _sdata
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/* end address for the .data section. defined in linker script */
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.word _edata
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/* start address for the .bss section. defined in linker script */
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.word _sbss
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/* end address for the .bss section. defined in linker script */
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.word _ebss
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/* stack used for SystemInit_ExtMemCtl; always internal RAM used */
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/**
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* @brief This is the code that gets called when the processor first
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* starts execution following a reset event. Only the absolutely
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* necessary set is performed, after which the application
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* supplied main() routine is called.
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* @param None
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* @retval : None
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*/
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.section .text.Reset_Handler
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.weak Reset_Handler
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.type Reset_Handler, %function
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Reset_Handler:
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ldr sp, =_estack /* set stack pointer */
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/* Copy the data segment initializers from flash to SRAM */
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ldr r0, =_sdata
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ldr r1, =_edata
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ldr r2, =_sidata
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movs r3, #0
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b LoopCopyDataInit
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CopyDataInit:
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ldr r4, [r2, r3]
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str r4, [r0, r3]
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adds r3, r3, #4
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LoopCopyDataInit:
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adds r4, r0, r3
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cmp r4, r1
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bcc CopyDataInit
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/* Zero fill the bss segment. */
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ldr r2, =_sbss
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ldr r4, =_ebss
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movs r3, #0
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b LoopFillZerobss
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FillZerobss:
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str r3, [r2]
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adds r2, r2, #4
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LoopFillZerobss:
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cmp r2, r4
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bcc FillZerobss
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/* Call the clock system initialization function.*/
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bl SystemInit
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/* Call static constructors */
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bl __libc_init_array
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/* Call the application's entry point.*/
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bl main
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bx lr
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.size Reset_Handler, .-Reset_Handler
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/**
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* @brief This is the code that gets called when the processor receives an
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* unexpected interrupt. This simply enters an infinite loop, preserving
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* the system state for examination by a debugger.
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* @param None
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* @retval None
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*/
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.section .text.Default_Handler,"ax",%progbits
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Default_Handler:
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Infinite_Loop:
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b Infinite_Loop
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.size Default_Handler, .-Default_Handler
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/******************************************************************************
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*
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* The minimal vector table for a Cortex M3. Note that the proper constructs
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* must be placed on this to ensure that it ends up at physical address
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* 0x0000.0000.
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*
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*******************************************************************************/
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.section .isr_vector,"a",%progbits
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.type g_pfnVectors, %object
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.size g_pfnVectors, .-g_pfnVectors
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g_pfnVectors:
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.word _estack
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.word Reset_Handler
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.word NMI_Handler
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.word HardFault_Handler
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.word MemManage_Handler
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.word BusFault_Handler
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.word UsageFault_Handler
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.word 0
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.word 0
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.word 0
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.word 0
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.word SVC_Handler
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.word DebugMon_Handler
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.word 0
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.word PendSV_Handler
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.word SysTick_Handler
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/* External Interrupts */
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.word WWDG_IRQHandler /* Window WatchDog */
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.word PVD_IRQHandler /* PVD through EXTI Line detection */
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.word TAMP_STAMP_IRQHandler /* Tamper and TimeStamps through the EXTI line */
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.word RTC_WKUP_IRQHandler /* RTC Wakeup through the EXTI line */
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.word FLASH_IRQHandler /* FLASH */
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.word RCC_IRQHandler /* RCC */
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.word EXTI0_IRQHandler /* EXTI Line0 */
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.word EXTI1_IRQHandler /* EXTI Line1 */
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.word EXTI2_IRQHandler /* EXTI Line2 */
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.word EXTI3_IRQHandler /* EXTI Line3 */
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.word EXTI4_IRQHandler /* EXTI Line4 */
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.word DMA1_Stream0_IRQHandler /* DMA1 Stream 0 */
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.word DMA1_Stream1_IRQHandler /* DMA1 Stream 1 */
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.word DMA1_Stream2_IRQHandler /* DMA1 Stream 2 */
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.word DMA1_Stream3_IRQHandler /* DMA1 Stream 3 */
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.word DMA1_Stream4_IRQHandler /* DMA1 Stream 4 */
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.word DMA1_Stream5_IRQHandler /* DMA1 Stream 5 */
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.word DMA1_Stream6_IRQHandler /* DMA1 Stream 6 */
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.word ADC_IRQHandler /* ADC1, ADC2 and ADC3s */
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.word CAN1_TX_IRQHandler /* CAN1 TX */
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.word CAN1_RX0_IRQHandler /* CAN1 RX0 */
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.word CAN1_RX1_IRQHandler /* CAN1 RX1 */
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.word CAN1_SCE_IRQHandler /* CAN1 SCE */
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.word EXTI9_5_IRQHandler /* External Line[9:5]s */
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.word TIM1_BRK_TIM9_IRQHandler /* TIM1 Break and TIM9 */
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.word TIM1_UP_TIM10_IRQHandler /* TIM1 Update and TIM10 */
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.word TIM1_TRG_COM_TIM11_IRQHandler /* TIM1 Trigger and Commutation and TIM11 */
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.word TIM1_CC_IRQHandler /* TIM1 Capture Compare */
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.word TIM2_IRQHandler /* TIM2 */
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.word TIM3_IRQHandler /* TIM3 */
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.word TIM4_IRQHandler /* TIM4 */
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.word I2C1_EV_IRQHandler /* I2C1 Event */
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.word I2C1_ER_IRQHandler /* I2C1 Error */
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.word I2C2_EV_IRQHandler /* I2C2 Event */
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.word I2C2_ER_IRQHandler /* I2C2 Error */
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.word SPI1_IRQHandler /* SPI1 */
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.word SPI2_IRQHandler /* SPI2 */
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.word USART1_IRQHandler /* USART1 */
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.word USART2_IRQHandler /* USART2 */
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.word USART3_IRQHandler /* USART3 */
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.word EXTI15_10_IRQHandler /* External Line[15:10]s */
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.word RTC_Alarm_IRQHandler /* RTC Alarm (A and B) through EXTI Line */
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.word OTG_FS_WKUP_IRQHandler /* USB OTG FS Wakeup through EXTI line */
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.word TIM8_BRK_TIM12_IRQHandler /* TIM8 Break and TIM12 */
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.word TIM8_UP_TIM13_IRQHandler /* TIM8 Update and TIM13 */
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.word TIM8_TRG_COM_TIM14_IRQHandler /* TIM8 Trigger and Commutation and TIM14 */
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.word TIM8_CC_IRQHandler /* TIM8 Capture Compare */
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.word DMA1_Stream7_IRQHandler /* DMA1 Stream7 */
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.word FSMC_IRQHandler /* FSMC */
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.word SDIO_IRQHandler /* SDIO */
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.word TIM5_IRQHandler /* TIM5 */
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.word SPI3_IRQHandler /* SPI3 */
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.word UART4_IRQHandler /* UART4 */
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.word UART5_IRQHandler /* UART5 */
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.word TIM6_DAC_IRQHandler /* TIM6 and DAC1&2 underrun errors */
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.word TIM7_IRQHandler /* TIM7 */
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.word DMA2_Stream0_IRQHandler /* DMA2 Stream 0 */
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.word DMA2_Stream1_IRQHandler /* DMA2 Stream 1 */
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.word DMA2_Stream2_IRQHandler /* DMA2 Stream 2 */
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.word DMA2_Stream3_IRQHandler /* DMA2 Stream 3 */
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.word DMA2_Stream4_IRQHandler /* DMA2 Stream 4 */
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.word ETH_IRQHandler /* Ethernet */
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.word ETH_WKUP_IRQHandler /* Ethernet Wakeup through EXTI line */
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.word CAN2_TX_IRQHandler /* CAN2 TX */
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.word CAN2_RX0_IRQHandler /* CAN2 RX0 */
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.word CAN2_RX1_IRQHandler /* CAN2 RX1 */
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.word CAN2_SCE_IRQHandler /* CAN2 SCE */
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.word OTG_FS_IRQHandler /* USB OTG FS */
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.word DMA2_Stream5_IRQHandler /* DMA2 Stream 5 */
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.word DMA2_Stream6_IRQHandler /* DMA2 Stream 6 */
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.word DMA2_Stream7_IRQHandler /* DMA2 Stream 7 */
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.word USART6_IRQHandler /* USART6 */
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.word I2C3_EV_IRQHandler /* I2C3 event */
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.word I2C3_ER_IRQHandler /* I2C3 error */
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.word OTG_HS_EP1_OUT_IRQHandler /* USB OTG HS End Point 1 Out */
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.word OTG_HS_EP1_IN_IRQHandler /* USB OTG HS End Point 1 In */
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.word OTG_HS_WKUP_IRQHandler /* USB OTG HS Wakeup through EXTI */
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.word OTG_HS_IRQHandler /* USB OTG HS */
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.word DCMI_IRQHandler /* DCMI */
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.word 0 /* CRYP crypto */
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.word HASH_RNG_IRQHandler /* Hash and Rng */
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.word FPU_IRQHandler /* FPU */
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/*******************************************************************************
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*
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* Provide weak aliases for each Exception handler to the Default_Handler.
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* As they are weak aliases, any function with the same name will override
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* this definition.
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*
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*******************************************************************************/
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.weak NMI_Handler
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.thumb_set NMI_Handler,Default_Handler
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.weak HardFault_Handler
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.thumb_set HardFault_Handler,Default_Handler
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.weak MemManage_Handler
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.thumb_set MemManage_Handler,Default_Handler
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.weak BusFault_Handler
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.thumb_set BusFault_Handler,Default_Handler
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.weak UsageFault_Handler
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.thumb_set UsageFault_Handler,Default_Handler
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.weak SVC_Handler
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.thumb_set SVC_Handler,Default_Handler
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.weak DebugMon_Handler
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.thumb_set DebugMon_Handler,Default_Handler
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.weak PendSV_Handler
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.thumb_set PendSV_Handler,Default_Handler
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.weak SysTick_Handler
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.thumb_set SysTick_Handler,Default_Handler
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.weak WWDG_IRQHandler
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.thumb_set WWDG_IRQHandler,Default_Handler
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.weak PVD_IRQHandler
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.thumb_set PVD_IRQHandler,Default_Handler
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.weak TAMP_STAMP_IRQHandler
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.thumb_set TAMP_STAMP_IRQHandler,Default_Handler
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.weak RTC_WKUP_IRQHandler
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.thumb_set RTC_WKUP_IRQHandler,Default_Handler
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.weak FLASH_IRQHandler
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.thumb_set FLASH_IRQHandler,Default_Handler
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.weak RCC_IRQHandler
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.thumb_set RCC_IRQHandler,Default_Handler
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.weak EXTI0_IRQHandler
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.thumb_set EXTI0_IRQHandler,Default_Handler
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.weak EXTI1_IRQHandler
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.thumb_set EXTI1_IRQHandler,Default_Handler
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.weak EXTI2_IRQHandler
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.thumb_set EXTI2_IRQHandler,Default_Handler
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.weak EXTI3_IRQHandler
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.thumb_set EXTI3_IRQHandler,Default_Handler
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.weak EXTI4_IRQHandler
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.thumb_set EXTI4_IRQHandler,Default_Handler
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.weak DMA1_Stream0_IRQHandler
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.thumb_set DMA1_Stream0_IRQHandler,Default_Handler
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.weak DMA1_Stream1_IRQHandler
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.thumb_set DMA1_Stream1_IRQHandler,Default_Handler
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.weak DMA1_Stream2_IRQHandler
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.thumb_set DMA1_Stream2_IRQHandler,Default_Handler
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.weak DMA1_Stream3_IRQHandler
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.thumb_set DMA1_Stream3_IRQHandler,Default_Handler
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.weak DMA1_Stream4_IRQHandler
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.thumb_set DMA1_Stream4_IRQHandler,Default_Handler
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.weak DMA1_Stream5_IRQHandler
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.thumb_set DMA1_Stream5_IRQHandler,Default_Handler
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.weak DMA1_Stream6_IRQHandler
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.thumb_set DMA1_Stream6_IRQHandler,Default_Handler
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.weak ADC_IRQHandler
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.thumb_set ADC_IRQHandler,Default_Handler
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.weak CAN1_TX_IRQHandler
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.thumb_set CAN1_TX_IRQHandler,Default_Handler
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.weak CAN1_RX0_IRQHandler
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.thumb_set CAN1_RX0_IRQHandler,Default_Handler
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.weak CAN1_RX1_IRQHandler
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.thumb_set CAN1_RX1_IRQHandler,Default_Handler
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.weak CAN1_SCE_IRQHandler
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.thumb_set CAN1_SCE_IRQHandler,Default_Handler
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.weak EXTI9_5_IRQHandler
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.thumb_set EXTI9_5_IRQHandler,Default_Handler
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.weak TIM1_BRK_TIM9_IRQHandler
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.thumb_set TIM1_BRK_TIM9_IRQHandler,Default_Handler
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.weak TIM1_UP_TIM10_IRQHandler
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.thumb_set TIM1_UP_TIM10_IRQHandler,Default_Handler
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.weak TIM1_TRG_COM_TIM11_IRQHandler
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.thumb_set TIM1_TRG_COM_TIM11_IRQHandler,Default_Handler
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.weak TIM1_CC_IRQHandler
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.thumb_set TIM1_CC_IRQHandler,Default_Handler
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.weak TIM2_IRQHandler
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.thumb_set TIM2_IRQHandler,Default_Handler
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.weak TIM3_IRQHandler
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.thumb_set TIM3_IRQHandler,Default_Handler
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.weak TIM4_IRQHandler
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.thumb_set TIM4_IRQHandler,Default_Handler
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.weak I2C1_EV_IRQHandler
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.thumb_set I2C1_EV_IRQHandler,Default_Handler
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.weak I2C1_ER_IRQHandler
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.thumb_set I2C1_ER_IRQHandler,Default_Handler
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.weak I2C2_EV_IRQHandler
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.thumb_set I2C2_EV_IRQHandler,Default_Handler
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.weak I2C2_ER_IRQHandler
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.thumb_set I2C2_ER_IRQHandler,Default_Handler
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.weak SPI1_IRQHandler
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.thumb_set SPI1_IRQHandler,Default_Handler
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.weak SPI2_IRQHandler
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.thumb_set SPI2_IRQHandler,Default_Handler
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.weak USART1_IRQHandler
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.thumb_set USART1_IRQHandler,Default_Handler
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.weak USART2_IRQHandler
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.thumb_set USART2_IRQHandler,Default_Handler
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.weak USART3_IRQHandler
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.thumb_set USART3_IRQHandler,Default_Handler
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.weak EXTI15_10_IRQHandler
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.thumb_set EXTI15_10_IRQHandler,Default_Handler
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.weak RTC_Alarm_IRQHandler
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.thumb_set RTC_Alarm_IRQHandler,Default_Handler
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.weak OTG_FS_WKUP_IRQHandler
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.thumb_set OTG_FS_WKUP_IRQHandler,Default_Handler
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.weak TIM8_BRK_TIM12_IRQHandler
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.thumb_set TIM8_BRK_TIM12_IRQHandler,Default_Handler
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.weak TIM8_UP_TIM13_IRQHandler
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.thumb_set TIM8_UP_TIM13_IRQHandler,Default_Handler
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.weak TIM8_TRG_COM_TIM14_IRQHandler
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.thumb_set TIM8_TRG_COM_TIM14_IRQHandler,Default_Handler
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.weak TIM8_CC_IRQHandler
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.thumb_set TIM8_CC_IRQHandler,Default_Handler
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.weak DMA1_Stream7_IRQHandler
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.thumb_set DMA1_Stream7_IRQHandler,Default_Handler
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.weak FSMC_IRQHandler
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.thumb_set FSMC_IRQHandler,Default_Handler
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.weak SDIO_IRQHandler
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.thumb_set SDIO_IRQHandler,Default_Handler
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.weak TIM5_IRQHandler
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.thumb_set TIM5_IRQHandler,Default_Handler
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.weak SPI3_IRQHandler
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.thumb_set SPI3_IRQHandler,Default_Handler
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.weak UART4_IRQHandler
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.thumb_set UART4_IRQHandler,Default_Handler
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.weak UART5_IRQHandler
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.thumb_set UART5_IRQHandler,Default_Handler
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.weak TIM6_DAC_IRQHandler
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.thumb_set TIM6_DAC_IRQHandler,Default_Handler
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.weak TIM7_IRQHandler
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.thumb_set TIM7_IRQHandler,Default_Handler
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.weak DMA2_Stream0_IRQHandler
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.thumb_set DMA2_Stream0_IRQHandler,Default_Handler
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.weak DMA2_Stream1_IRQHandler
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.thumb_set DMA2_Stream1_IRQHandler,Default_Handler
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.weak DMA2_Stream2_IRQHandler
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.thumb_set DMA2_Stream2_IRQHandler,Default_Handler
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.weak DMA2_Stream3_IRQHandler
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.thumb_set DMA2_Stream3_IRQHandler,Default_Handler
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.weak DMA2_Stream4_IRQHandler
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.thumb_set DMA2_Stream4_IRQHandler,Default_Handler
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.weak ETH_IRQHandler
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.thumb_set ETH_IRQHandler,Default_Handler
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.weak ETH_WKUP_IRQHandler
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.thumb_set ETH_WKUP_IRQHandler,Default_Handler
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.weak CAN2_TX_IRQHandler
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.thumb_set CAN2_TX_IRQHandler,Default_Handler
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.weak CAN2_RX0_IRQHandler
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.thumb_set CAN2_RX0_IRQHandler,Default_Handler
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.weak CAN2_RX1_IRQHandler
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.thumb_set CAN2_RX1_IRQHandler,Default_Handler
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.weak CAN2_SCE_IRQHandler
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.thumb_set CAN2_SCE_IRQHandler,Default_Handler
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.weak OTG_FS_IRQHandler
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.thumb_set OTG_FS_IRQHandler,Default_Handler
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.weak DMA2_Stream5_IRQHandler
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.thumb_set DMA2_Stream5_IRQHandler,Default_Handler
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.weak DMA2_Stream6_IRQHandler
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.thumb_set DMA2_Stream6_IRQHandler,Default_Handler
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.weak DMA2_Stream7_IRQHandler
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.thumb_set DMA2_Stream7_IRQHandler,Default_Handler
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.weak USART6_IRQHandler
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.thumb_set USART6_IRQHandler,Default_Handler
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.weak I2C3_EV_IRQHandler
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.thumb_set I2C3_EV_IRQHandler,Default_Handler
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.weak I2C3_ER_IRQHandler
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.thumb_set I2C3_ER_IRQHandler,Default_Handler
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.weak OTG_HS_EP1_OUT_IRQHandler
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.thumb_set OTG_HS_EP1_OUT_IRQHandler,Default_Handler
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.weak OTG_HS_EP1_IN_IRQHandler
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.thumb_set OTG_HS_EP1_IN_IRQHandler,Default_Handler
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.weak OTG_HS_WKUP_IRQHandler
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.thumb_set OTG_HS_WKUP_IRQHandler,Default_Handler
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.weak OTG_HS_IRQHandler
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.thumb_set OTG_HS_IRQHandler,Default_Handler
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.weak DCMI_IRQHandler
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.thumb_set DCMI_IRQHandler,Default_Handler
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.weak HASH_RNG_IRQHandler
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.thumb_set HASH_RNG_IRQHandler,Default_Handler
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.weak FPU_IRQHandler
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.thumb_set FPU_IRQHandler,Default_Handler
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