LEVEL 00 / LESSON 08

Debugging Fundamentals

Learn the concept first, then connect it to registers, firmware implementation, hardware behavior and debugging.

01 / CONCEPT

Reset System

Reset puts the MCU and its peripherals into a defined startup state. Reset can originate from power-on, external reset, watchdog or software, depending on the MCU. After reset, the startup sequence establishes the execution environment before application code reaches main().

CORE IDEA

Power-on reset

ENGINEERING VIEW

External reset

WHAT TO CHECK

Watchdog reset

REMEMBER

Reset values of registers matter

02 / PRACTICAL CHECK

Engineer’s checklist

  • Power-on reset
  • External reset
  • Watchdog reset
  • Software reset
  • Reset values of registers matter
lesson-notes.c
// Level 0 practical notes
// Next iteration: register diagrams + full STM32 examples.