STM32F103C8T6单片机简介
https://blog.csdn.net/fantastic_sky/article/details/110229474
工程配置
如何配置JLINK给STM32单片机下载程序
https://blog.csdn.net/weixin_46169171/article/details/120322345
大佬的笔记
stm32f103从安装MDK5到烧录第一个亮灯程序
https://blog.csdn.net/weixin_44015820/article/details/119276974
记录的实在是详尽！
stm32的uart
https://blog.csdn.net/ForeverIT/article/details/81349488
stm32的GPIO介绍
https://blog.csdn.net/qq_44016222/article/details/123206403
STM32 GPIO八种输入输出模式
https://zhuanlan.zhihu.com/p/113367004