AVR Baremetal

Motivation

So I started this quest on doing Baremetal programming of AVR micro-controllers just using

  • avr-gcc for compilation and object, elf file creation
  • avr-objcopy for creating hex file from elf file
  • avrdude and arduino programmer for flashing the chip.
  • make for automating the build, hex file generation process and flashing purposes.

Working Environment

Explore the project

Requirements and Environment setup
Understanding the Makefile
Memory map file creation
Blinky!
16x2 LCD interfacing
❗
If you’re using PORTD, make sure to remove the TX and RX (D0 and D1) connections on the Arduino Uno before flashing!

References