Having trouble setting up Bigtree SKR v1.3

I’ve moved this to a separate thread as you resurrected an old thread about something completely different.

Since you’re talking about the Bigtreetech version of Marlin, perhaps you should be looking at

https://github.com/bigtreetech/BIGTREETECH-SKR-V1.3/tree/master/firmware/Marlin-bugfix-2.0.x

for the source code, and using the configuration they provide?

Someone else will probably be able to help you with this specific board, as there have been a few posts by people for that particular board recently, so there are some other users of it on this forum.