In a case of awful timing, after my recent project involving some attiny85 programming I finally got around to learning how to use simavr and gdb to help debug my AVR code. It was too late for me (and I will never get the time back that I spent debugging things with an LED and lots of re-flashing), but maybe this will help someone else!

I’ve split this into three posts:

• Part 1: Using GDB

This is the second of three posts about using gdb and simavr to debug AVR code. The complete series is:

• Part 1: Using GDB

  A walkthrough of using GDB to manually inspect the behavior of our code.

• Part 2: Automating GDB with scripts

  Creating GDB scripts to automatically test the behavior of our code.

• Part 3: Tracing with simavr

  Using simavr to collect information about the state of microcontroller pins while our code is running.

This is the third of three posts about using gdb and simavr to debug AVR code. The complete series is:

• Part 1: Using GDB

  A walkthrough of using GDB to manually inspect the behavior of our code.

• Part 2: Automating GDB with scripts

  Creating GDB scripts to automatically test the behavior of our code.

• Part 3: Tracing with simavr

  Using simavr to collect information about the state of microcontroller pins while our code is running.