问题
使用了一款Cortex-M0内核的芯片STM32F030CC，发现它中断向量表的重映射方法与STM32F10x不同
STM32F10x HAL库使用 NVIC_SetVectorTable 或 SCB->VTOR = 0x08004000;
但是STM32F030CC对应Cortex-M0并没有SCB->VTOR
解决方法（把中断向量表拷贝到sram）
代码添加位置,可以在app也可以在bootloader但是要保证在boot关总中断后app打开中断之前
HAL库 、 LL库
memcpy((void *)0x20000000, (void *)0x08004000, VECTOR_SIZE);
LL_SYSCFG_SetRemapMemory(LL_SYSCFG_REMAP_SRAM);标准库
memcpy((void*)0x20000000, (void*)0x08004000, VECTOR_SIZE);
SYSCFG_MemoryRemapConfig(SYSCFG_MemoryRemap_SRAM);
/*0x20000000是SRAM的起始地址*/
/*0x08004000是应用程序的起址地址*/
/*VECTOR_SIZE是指中断向量表的大小*/如何确定VECTOR_SIZE大小
startup_stm32f030xc.s启动文件内容如下，从启动文件中可以看出大小。
;*******************************************************************************
;* File Name : startup_stm32f030xc.s
;* Author : MCD Application Team
;* Description : STM32F030xc/STM32F030xb devices vector table for MDK-ARM 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()).
;* After Reset the CortexM0 processor is in Thread mode,
;* priority is Privileged, and the Stack is set to Main.
;*******************************************************************************
;* @attention
;*
;* Copyright (c) 2016 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.
;*
;*******************************************************************************
;* <<< Use Configuration Wizard in Context Menu >>>
;
; Amount of memory (in bytes) allocated for Stack
; Tailor this value to your application needs
; <h> Stack Configuration
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
Stack_Size EQU 0x1000
AREA STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem SPACE Stack_Size
__initial_sp
; <h> Heap Configuration
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
Heap_Size EQU 0x800
AREA HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem SPACE Heap_Size
__heap_limit
PRESERVE8
THUMB
; Vector Table Mapped to Address 0 at Reset
AREA RESET, DATA, READONLY
EXPORT __Vectors
EXPORT __Vectors_End
EXPORT __Vectors_Size
__Vectors DCD __initial_sp ; Top of Stack
DCD Reset_Handler ; Reset Handler
DCD NMI_Handler ; NMI Handler
DCD HardFault_Handler ; Hard Fault Handler
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD SVC_Handler ; SVCall Handler
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD PendSV_Handler ; PendSV Handler
DCD SysTick_Handler ; SysTick Handler
; External Interrupts
DCD WWDG_IRQHandler ; Window Watchdog
DCD 0 ; Reserved
DCD RTC_IRQHandler ; RTC through EXTI Line
DCD FLASH_IRQHandler ; FLASH
DCD RCC_IRQHandler ; RCC
DCD EXTI0_1_IRQHandler ; EXTI Line 0 and 1
DCD EXTI2_3_IRQHandler ; EXTI Line 2 and 3
DCD EXTI4_15_IRQHandler ; EXTI Line 4 to 15
DCD 0 ; Reserved
DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
DCD DMA1_Channel2_3_IRQHandler ; DMA1 Channel 2 and Channel 3
DCD DMA1_Channel4_5_IRQHandler ; DMA1 Channel 4 and Channel 5
DCD ADC1_IRQHandler ; ADC1
DCD TIM1_BRK_UP_TRG_COM_IRQHandler ; TIM1 Break, Update, Trigger and Commutation
DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
DCD 0 ; Reserved
DCD TIM3_IRQHandler ; TIM3
DCD TIM6_IRQHandler ; TIM6
DCD TIM7_IRQHandler ; TIM7
DCD TIM14_IRQHandler ; TIM14
DCD TIM15_IRQHandler ; TIM15
DCD TIM16_IRQHandler ; TIM16
DCD TIM17_IRQHandler ; TIM17
DCD I2C1_IRQHandler ; I2C1
DCD I2C2_IRQHandler ; I2C2
DCD SPI1_IRQHandler ; SPI1
DCD SPI2_IRQHandler ; SPI2
DCD USART1_IRQHandler ; USART1
DCD USART2_IRQHandler ; USART2
DCD USART3_6_IRQHandler ; USART3, USART4, USART5, USART6
__Vectors_End
__Vectors_Size EQU __Vectors_End - __Vectors
AREA |.text|, CODE, READONLY
; Reset handler routine
Reset_Handler PROC
EXPORT Reset_Handler [WEAK]
IMPORT __main
IMPORT SystemInit
LDR R0, =SystemInit
BLX R0
LDR R0, =__main
BX R0
ENDP
; Dummy Exception Handlers (infinite loops which can be modified)
NMI_Handler PROC
EXPORT NMI_Handler [WEAK]
B .
ENDP
HardFault_Handler\
PROC
EXPORT HardFault_Handler [WEAK]
B .
ENDP
SVC_Handler PROC
EXPORT SVC_Handler [WEAK]
B .
ENDP
PendSV_Handler PROC
EXPORT PendSV_Handler [WEAK]
B .
ENDP
SysTick_Handler PROC
EXPORT SysTick_Handler [WEAK]
B .
ENDP
Default_Handler PROC
EXPORT WWDG_IRQHandler [WEAK]
EXPORT RTC_IRQHandler [WEAK]
EXPORT FLASH_IRQHandler [WEAK]
EXPORT RCC_IRQHandler [WEAK]
EXPORT EXTI0_1_IRQHandler [WEAK]
EXPORT EXTI2_3_IRQHandler [WEAK]
EXPORT EXTI4_15_IRQHandler [WEAK]
EXPORT DMA1_Channel1_IRQHandler [WEAK]
EXPORT DMA1_Channel2_3_IRQHandler [WEAK]
EXPORT DMA1_Channel4_5_IRQHandler [WEAK]
EXPORT ADC1_IRQHandler [WEAK]
EXPORT TIM1_BRK_UP_TRG_COM_IRQHandler [WEAK]
EXPORT TIM1_CC_IRQHandler [WEAK]
EXPORT TIM3_IRQHandler [WEAK]
EXPORT TIM6_IRQHandler [WEAK]
EXPORT TIM7_IRQHandler [WEAK]
EXPORT TIM14_IRQHandler [WEAK]
EXPORT TIM15_IRQHandler [WEAK]
EXPORT TIM16_IRQHandler [WEAK]
EXPORT TIM17_IRQHandler [WEAK]
EXPORT I2C1_IRQHandler [WEAK]
EXPORT I2C2_IRQHandler [WEAK]
EXPORT SPI1_IRQHandler [WEAK]
EXPORT SPI2_IRQHandler [WEAK]
EXPORT USART1_IRQHandler [WEAK]
EXPORT USART2_IRQHandler [WEAK]
EXPORT USART3_6_IRQHandler [WEAK]
WWDG_IRQHandler
RTC_IRQHandler
FLASH_IRQHandler
RCC_IRQHandler
EXTI0_1_IRQHandler
EXTI2_3_IRQHandler
EXTI4_15_IRQHandler
DMA1_Channel1_IRQHandler
DMA1_Channel2_3_IRQHandler
DMA1_Channel4_5_IRQHandler
ADC1_IRQHandler
TIM1_BRK_UP_TRG_COM_IRQHandler
TIM1_CC_IRQHandler
TIM3_IRQHandler
TIM6_IRQHandler
TIM7_IRQHandler
TIM14_IRQHandler
TIM15_IRQHandler
TIM16_IRQHandler
TIM17_IRQHandler
I2C1_IRQHandler
I2C2_IRQHandler
SPI1_IRQHandler
SPI2_IRQHandler
USART1_IRQHandler
USART2_IRQHandler
USART3_6_IRQHandler
B .
ENDP
ALIGN
;*******************************************************************************
; User Stack and Heap initialization
;*******************************************************************************
IF :DEF:__MICROLIB
EXPORT __initial_sp
EXPORT __heap_base
EXPORT __heap_limit
ELSE
IMPORT __use_two_region_memory
EXPORT __user_initial_stackheap
__user_initial_stackheap
LDR R0, = Heap_Mem
LDR R1, =(Stack_Mem + Stack_Size)
LDR R2, = (Heap_Mem + Heap_Size)
LDR R3, = Stack_Mem
BX LR
ALIGN
ENDIF
END
在__Vectors到__Vectors_End之间，每一个DCD都代表一个中断向量 （ 中断服务程序的入口地址 ），例如：
DCD USART1_IRQHandler ; USART1这里的“USART1_IRQHandler"其实就是UART1中断服务程序USART1_IRQHandler这个函数，同时，它也代表这个函数的入口地址。
因为DCD对应的表示一个表中的元素，每个元素是一个长度为4字节的地址。除了第一个地址是SP（堆栈指针）外，其它的地址都是某个中断服务程序的入口地址。
通过对“DCD”计数发现有46个，所以：VECTOR_SIZE = 46*4 = 184 = 0xB8（字节）
APP中RAM偏移
在执行完以上两行代码后，若发生中断，CPU就会去SRAM（即0x2000 0000处）取中断向量了，所以，以0x2000 0000作为起始地址之后的VECTOR_SIZE个字节就不能被改动了。为了达到这VECTOR_SIZE个字节不被修改的目的，可以用以下方法实现。
Keil中，IRAM1的Start地址修改为0x20000000 + 0xB8 = 0x200000B8，同时可以将Size由原来的大小减去0xB8，即0x8000 - 0xB8 = 0x7F48
最终IRAM1 Start: 0x200000B8，Size: 0x7F48
总结
boot关闭中断开关---->跳转到app的bin地址+4位置（也就是rest）---->进入app以后把中断向量表拷贝到内存中,并使用LL_SYSCFG_SetRemapMemory告诉芯片到时候去内存0x20000000中找找中断--->打开中断开关