358 lines
9.4 KiB
ArmAsm
358 lines
9.4 KiB
ArmAsm
/**
|
|
*************** (C) COPYRIGHT 2017 STMicroelectronics ************************
|
|
* @file startup_stm32f103xb.s
|
|
* @author MCD Application Team
|
|
* @brief STM32F103xB Devices vector table for Atollic 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 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-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 */
|
|
movs r1, #0
|
|
b LoopCopyDataInit
|
|
|
|
CopyDataInit:
|
|
ldr r3, =_sidata
|
|
ldr r3, [r3, r1]
|
|
str r3, [r0, r1]
|
|
adds r1, r1, #4
|
|
|
|
LoopCopyDataInit:
|
|
ldr r0, =_sdata
|
|
ldr r3, =_edata
|
|
adds r2, r0, r1
|
|
cmp r2, r3
|
|
bcc CopyDataInit
|
|
ldr r2, =_sbss
|
|
b LoopFillZerobss
|
|
/* Zero fill the bss segment. */
|
|
FillZerobss:
|
|
movs r3, #0
|
|
str r3, [r2], #4
|
|
|
|
LoopFillZerobss:
|
|
ldr r3, = _ebss
|
|
cmp r2, r3
|
|
bcc FillZerobss
|
|
|
|
/* Call the clock system initialization 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_IRQHandler
|
|
.word RTC_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_2_IRQHandler
|
|
.word USB_HP_CAN1_TX_IRQHandler
|
|
.word USB_LP_CAN1_RX0_IRQHandler
|
|
.word CAN1_RX1_IRQHandler
|
|
.word CAN1_SCE_IRQHandler
|
|
.word EXTI9_5_IRQHandler
|
|
.word TIM1_BRK_IRQHandler
|
|
.word TIM1_UP_IRQHandler
|
|
.word TIM1_TRG_COM_IRQHandler
|
|
.word TIM1_CC_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 USBWakeUp_IRQHandler
|
|
.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
|
|
STM32F10x Medium Density 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_IRQHandler
|
|
.thumb_set TAMPER_IRQHandler,Default_Handler
|
|
|
|
.weak RTC_IRQHandler
|
|
.thumb_set RTC_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_2_IRQHandler
|
|
.thumb_set ADC1_2_IRQHandler,Default_Handler
|
|
|
|
.weak USB_HP_CAN1_TX_IRQHandler
|
|
.thumb_set USB_HP_CAN1_TX_IRQHandler,Default_Handler
|
|
|
|
.weak USB_LP_CAN1_RX0_IRQHandler
|
|
.thumb_set USB_LP_CAN1_RX0_IRQHandler,Default_Handler
|
|
|
|
.weak CAN1_RX1_IRQHandler
|
|
.thumb_set CAN1_RX1_IRQHandler,Default_Handler
|
|
|
|
.weak CAN1_SCE_IRQHandler
|
|
.thumb_set CAN1_SCE_IRQHandler,Default_Handler
|
|
|
|
.weak EXTI9_5_IRQHandler
|
|
.thumb_set EXTI9_5_IRQHandler,Default_Handler
|
|
|
|
.weak TIM1_BRK_IRQHandler
|
|
.thumb_set TIM1_BRK_IRQHandler,Default_Handler
|
|
|
|
.weak TIM1_UP_IRQHandler
|
|
.thumb_set TIM1_UP_IRQHandler,Default_Handler
|
|
|
|
.weak TIM1_TRG_COM_IRQHandler
|
|
.thumb_set TIM1_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 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 USBWakeUp_IRQHandler
|
|
.thumb_set USBWakeUp_IRQHandler,Default_Handler
|