Stage 1 · Lesson 1 of 6
Why C still runs the hardware
Almost all is written in C, or in C++ used in a C-like way. C compiles to small, fast machine code, lets you place data at exact addresses and gives you direct control of memory, with no garbage collector (a background process that frees memory) pausing your program at random moments.
Chip vendors ship their drivers, examples and start-up code in C, so reading C is how you read the platform itself. Even on a Raspberry Pi, where Python is common, the kernel drivers and many libraries underneath are C. You do not need all of C: pointers, structs, bit operations and a clear idea of memory matter far more than advanced tricks.
Common traplearning C only through desktop exercises with printf and never compiling anything for a chip, so the embedded ideas never connect.
A question to check yourself, an AI practice session and 1 cheat sheet entry come with the full roadmap. Unlock
Resources for this stage
Start with· follow one of these
- VideoFreeModern Embedded Systems Programming (video course)
Quantum Leaps (Miro Samek) · Intermediate
Free lessons that step down to the machine level: watch the first segment on C, bits, pointers and memory
- CourseFreeCS50: Introduction to Computer Science
Harvard University · Beginner
The weeks on C and memory give you pointers, arrays and malloc explained clearly, free