Stop Guessing: Debug Your ATmega Like a Pro
📥 RESOURCES & DOWNLOADS
• [TUT][SOFT][GCC] AVR debugging using gdb and AVR Dragon under Linux (Ubuntu): https://www.avrfreaks.net/s/topic/a5C...
• Wayne's Tinkering Page - AVR/Arduino Hardware Debugger on the Cheap: https://sites.google.com/site/wayneho...
• The connections as PDF: https://drive.google.com/file/d/1UuCx...
• DebugWireDebuggerProgrammer: https://drive.google.com/file/d/13m0F...
• From the Example:
– Source and Simulators: https://drive.google.com/file/d/1aygJ...
✏️ EXERCISES
• Examining a Program: https://drive.google.com/drive/folder...
🎯 QUEST
• DebugWireDebuggerProgrammer: https://docs.google.com/document/d/1o...
🧠 QUIZ
https://forms.gle/E8yeDttWvx6A9Ewt7
Have you ever struggled to debug timing-sensitive code or track down elusive bugs in your ATmega programs? In this section, we learn how to properly debug ATmega/Arduino programs beyond basic Serial.println and LED tricks. This video walks through powerful debugging techniques using GDB, software simulators, and real hardware via debugWIRE.
We start by exploring why common debugging methods fall short—especially for timing-sensitive code—and then move into using avr-gdb to step through code, inspect variables, and set breakpoints. You’ll see how simulators like simavr (time-accurate) and simulavr (cycle-accurate) help test embedded programs on your PC, along with their limitations.
From there, we dive into hardware debugging: understanding JTAG vs. debugWIRE, how fuse settings affect debugging (and how they can lock you out of your chip), and what tools are available—from commercial debuggers to a clever Arduino-based solution.
You’ll also learn about breakpoint types, flash wear considerations, and best practices when debugging embedded systems.
Whether you're working with ATmega chips or Arduino projects, this guide will help you debug more effectively and understand what’s really happening inside your microcontroller.
#Arduino #ATmega #Debugging #debugWIRE #GDB #Simulator #simavr #simulavr #JTAG #HardwareDebugger #HighFuse #AVRDragon #Breakpoints #EmbeddedDebugging
📖 CHAPTERS
0:00 Introduction
2:48 GNU Project Debugger and Simulators
4:24 Practical Example: GDB and Simulators
42:35 JTAG
44:36 debugWIRE: The On-Chip Debug System
45:54 The High Fuse
50:42 Hardware Debuggers
52:58 The DebugWireDebuggerProgrammer
55:13 Practical Example: Debugging the real Thing
1:11:53 Summary and What's next?