Register Operations

From mask/shift basics to the RMW problem to STM32’s elegant BSRR design. Learn to read registers as bit collections, practice register-direct LED blinking through GPIO, and measure the speed difference between HAL and direct register access.

The next step after Arduino! Serious embedded programming with the STM32 microcontroller. Addresses, bits, and time — understand the essence of embedded systems step by step, building a solid mental model that applies to any platform.