ROV_F429\ROV_F429.axf: Error: L6218E: Undefined symbol

问题遇到的现象和发生背景

明明在头文件里定义了，但是一直说我没定义，不知道咋回事

编译错误：XXX.axf: Error: L6218E: Undefined symbol xxx (referred from xxxx.o)._Undefined variable的博客-CSDN博客 XXX.axf: Error: L6218E: Undefined symbol xxx (referred from xxxx.o).MKD 报错：linking… stm32f103.axf: Error: L6218E: Undefined symbol Time1_8_Init (referred from led.o).分析：Undefined symbol Time1_8_Init， https://blog.csdn.net/santa9527/article/details/78857765