Just entered the pit DSP, the relevant data is not a little less than STM32.

The above mistakes are often encountered, so I don’t know why.

I found the problem this time. Let’s summarize it.

This problem is a path problem. The called function is not in your project directory

Just add the file to your directory.

At the same time, we should form a habit. After debugging, check the error prompt and look at this window more

There are errors in this