IAR STM32工程中报错：
Error[Pe147]: declaration is incompatible with "__nounwind __interwork __softfp unsigned int __iar_builtin_REV16(unsigned int)" (declared at line 197 of "D:\STM32F103_Demo\Core\core_cm3.h
解决方法：
在core_cm3中找到#include <intrinsics.h> 将其注释掉
