我用MDK在STM32调试中断时出现了一个问题，当程序下载到Flash调试时运行正常， 但当想在SRAM中调试时程序根本进入不了Main函数里面。请给位大侠帮忙啊~ SRAM调试设置没有问题~我试过在SRAM中调试流水灯~   Jlink会提示一个警告：T-bit of XPSR is 0 but shuld be 1.chang to 1 定时中断设置如下设置如下：         //系统中断管理
void NVIC_Config(void)
{
 NVIC_InitTypeDef NVIC_InitStructure;
 NVIC_SetVectorTable(NVIC_VectTab_RAM,0X0);
 NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
 NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; //通道
 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;//占先优先级
 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //从优先级
 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
 NVIC_Init(&NVIC_InitStructure); }   void Timer_Config(void)
{
 TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;  TIM_DeInit(TIM2);
 TIM_TimeBaseStructure.TIM_Period=2000; //自动重装载寄存器的值
 TIM_TimeBaseStructure.TIM_Prescaler= (36000 - 1); //时钟预分频数
 TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1; //采样分频
 TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
 TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
 TIM_ClearFlag(TIM2, TIM_FLAG_Update); //清除溢出中断标志
 TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);
 TIM_Cmd(TIM2, ENABLE); //开启时钟
} 此帖出自小平头技术问答