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
report errors
I use AC6 as the compiler in keil MDK. I report an error when I transplant DSP library to F4. I configure it according to the online tutorial and report an error after compiling
Error: L6242E: Cannot link object arm_common_tables.o as its attributes are incompatible with the image attributes.
Error: L6242E: Cannot link object arm_cos_f32.o as its attributes are incompatible with the image attributes.
After searching on the Internet for a circle, I found no result. If I see a similar problem, I can’t try to solve it.
https://blog.csdn.net/crown133/article/details/103333704
solve
Finally, we found the answer on arm’s official developer website
in the end https://developer.arm.com/documentation/ka003983/latest
In short, AC5 and 6 wchar_ The default size of T is not the same
according to the solution of the official website, you can open this option here
if you encounter problems in the future, you still need to find answers through official channels