问个蠢问题，关于中断与偏移地址的，有点混乱了

zeratel3000 · 发表于 2012-11-26 17:00:17

小弟做IAP，已经成功了，但是还是有点疑问，按照原子大哥的做法是应该在开头有这么一句

SCB->VTOR = FLASH_BASE | 0x10000; /* Vector Table Relocation in Internal FLASH. 中断偏移*/ （库函数版本），作为偏移地址，

可是后来我在程序中又加入了一个计时器中断，和一个按键中断

void Timer5_NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

/* Set the Vector Table base address at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x10000);

/* Enable the TIM5 gloabal Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

NVIC_Init(&NVIC_InitStructure);

}

void key1InterruptConfig(void)
{
NVIC_InitTypeDef NVIC_InitStructure;

/* Set the Vector Table base address at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x10000);

/* Configure the Priority Group to 2 bits */

/* Enable the EXTI Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = GPIO_KEY1_EXTI_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

其中都有NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x10000);

可是在其他的中断，例如

void Timer2_NVIC_Configuration(void)
{
    NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);             //抢占优先级2位（0,1,2,3），响应优先级2位（0,1,2,3）
    NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;   //USART1串口中断
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; //设置抢占优先级，，可以再中断中继续嵌套中断
    NVIC_InitStructure.NVIC_IRQChannelSubPriority =3;   //设置响应优先级，，抢占优先级相同时，响应优先越高中断越高
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;    //使能IRQ通道
    NVIC_Init(&NVIC_InitStructure);        //按前面设置值初始化NVIC
}
之中。又没有地址，我就有点乱套了，什么时候有地址，什么时候没有地址呢？还是说默认了？