Arduino / Atmel AVR references

arduino.md

Datasheets

• AVR Instruction Set Manual
• ATmega328P (datasheet)
• Efficient C for AVR
• Using the ATtiny / ATmega UART from C

Tools

• AVR Delay Loop Calculator
  • Original: http://www.bretmulvey.com/avrdelay.html)

Semi-custom hardware

Required to run Arduino IDE on boards with slight differences to stock Arduinos, e.g. CPU clock.

ATmega328P (datasheet) based -- see Arduino Uno.

• Adding a custom board to the Arduino IDE
• Arduino Playhround - Customize Arduino IDE
• Arduino IDE 1.5 third-party hardware specification
  • See "boards.local.txt" - can define new board variants locally
• Inside Arduino Code - How to make a new core
• Forum posts
  • https://forum.arduino.cc/index.php?topic=457929.0 / https://forum.arduino.cc/index.php?topic=455407.0
• Optiboot
  • Compiling Optiboot - ATmega328P at custom frequency

Hardware setup

• From Arduino to Breadboard -- how to migrate from an Arduino board to a standalone microcontroller on a breadboard
• Standalone

Hardware drivers

• MiniCore -- Atmega328P etc. with enhanced Optiboot, minimal setup (custom PCB)

Inline assembler

• AVR-GCC Inline Assembler Cookbook
• Programming Arduino in Assembly
• uC eXperiment tutorial series -- book version
  • Part 1, Basic ASM
  • Part 2, Extending ASM
  • Part 3, Clobbers
  • Part 4, Constraints
  • Part 5, Ports and Pins
    • Ports and Pins Compendium
  • Part 6, Bit Operations
  • Part 7, Bit Shifts
  • Part 8, Math
  • Part 9, Branching
  • Part 10, Strings
  • Part 11, Tables
  • Part 12, Functions
  • Part 13, Interrupts
  • Examples