求大神解释编译错误

凹凸曼

compiling test.c...

C:\Keil\ARM\Inc\ST\STM32F10x\stm32f10x.h(96): error:  #35: #error directive: "Please select first the target STM32F10x device used in your application (in stm32f10x.h file)"

   #error "Please select first the target STM32F10x device used in your application (in stm32f10x.h file)"

test.c: 0 warnings, 1 error

"test.c" - 1 Error(s), 0 Warning(s).
编译以后出现这个错误       代码是按照不完全手册来的   求大神解释

冰封嗜魔

你这个没有用库,不要把stm32f10x.h文件包含到工程里。如果包含的话，C/C++里面需要define:STM32F10X_MD