程序初始化进入HardFault_Handler

只看该作者 · 2009-12-1 23:08

如题：IAR+Jlink，SWD方式调试，芯片型号为STM32F101CBT6，仿真运行，执行到函数TIM2_Configuration中的TIM_Cmd(TIM2, ENABLE);就进入到HardFault_Handler，如果复位后重新运行则执行到NVIC_Configuration中的NVIC_Init(&NVIC_InitStructure);就进入到HardFault_Handler，找了好久没有找到原因，请香主帮忙分析，谢谢！
代码：
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
#ifdef VECT_TAB_RAM
      NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else
      NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); // Configure the NVIC Preemption Priority Bits
//NVIC_InitStructure.NVIC_IRQChannel          = USART1_IRQn;
//NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3;
//NVIC_InitStructure.NVIC_IRQChannelCmd       = ENABLE;
//NVIC_Init(&NVIC_InitStructure);
//Enable the TIM2 global Interrupt
NVIC_InitStructure.NVIC_IRQChannel          = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd       = ENABLE;
NVIC_Init(&NVIC_InitStructure);

//使能EXTI 12通道
//NVIC_InitStructure.NVIC_IRQChannel          = EXTI15_10_IRQn;
//NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
//NVIC_InitStructure.NVIC_IRQChannelCmd       = ENABLE;
//NVIC_Init(&NVIC_InitStructure);
}

void TIM2_Configuration(void)
{
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;

TIM_TimeBaseStructure.TIM_Period       = 5625;
TIM_TimeBaseStructure.TIM_Prescaler    = 64;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Down;

TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
TIM_ARRPreloadConfig(TIM2, ENABLE);
TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
TIM_Cmd(TIM2, ENABLE);
}

另外进入到HardFault_Handler后观察到LR=0xFFFFFFF1