error: #20: identifier “TIM_IT_Update“ is undefined

problem¶

Sometimes, an error will be reported:

..\..\User\stm32f10x_it.c(193): error: #20: identifier "TIM_IT_Update" is undefined

As shown in the figure, in the configured .C file, the variable of the library function is called, but the variable is displayed as undefined

We look at the .c file and find that the .h header file has been included

Please add image description

Looking at the .h header file again, it is found that the header file of stm32f10x.h is also included

And also includes the TimBase folder in the included folder

solution¶

We opened the header file of stm32f10x_conf.h and found that stm32f10x_tim.h was commented out, so the variables defined by library functions could not be found

We can remove the comment

reference¶

https://blog.csdn.net/EstrangedZ/article/details/125273784