Still wondering why it all works? Why this black square does things? Lets go deeper. Previously I explained a bit about processor architecture. It’s the basis of the chip. It’s a fundament. You won’t find anything about an UART in a Technical Reference Manual of Cortex-M4. It’s just not a part of this fundament. When you get an STM32 microcontroller based on the Cortex-M4 architecture you just get microcontroller made by ST which uses this specific architecture. What stops them to add...
