Moving from C++/Qt to ANSI C: where to start?

Question

C++ / C#

Good afternoon. There is a year of commercial development in C++/Qt. Didn't encounter any low levels. I want to try to dig into embedded. They say that for this you need to pull up ANSI C. What can you advise to avoid unnecessary introductory information such as loops, iterators, and so on. entry level and go to, in fact, new things for the cross?

Answer 1

I join. You probably know everything, the point of growth is in business logic (operating systems, processors from a programmer's point of view, etc.)