STM32程序跑飞跟踪与解决方案。本文详细描述程序进入CPU异常中断后，如何通过堆栈信息定位到“引发异常”的代码位置，从而修正错误。(The Doc introducesa pratical resolution for STM32 HardFault exception. After exception occurs, how to find the abnormal code location trough the stack information is the key.)