Arduino Assembly Language

This book explores how to use Assembly Language within your Arduino sketches, directly from the Arduino IDE, without any external tools. By learning to write low-level code, you'll gain the ability to reduce sketch size, increase execution speed, and achieve precise timing control, especially useful for tasks like bit-banging communication protocols.

It's designed to be both educational and practical, helping developers and makers to reduce the size of their sketches, increase the speed of execution, and to get a much better understanding of how the Arduino hardware works. With a focus on clarity and hands-on examples, it's ideal for developers and makers who want to push their Arduino projects further and gain deeper insight into microcontroller programming.

What You'll Learn

• How to code in Assembly for speed, code size and exact timings.
• How to write libraries for use with Assembly (and C++ for some of the libraries).
• How to interact with all the hardware features of the ATmega328P, from Assembly Language.
• What to avoid and other pitfalls.

Who Is This Book For

Everyone with an interest in the Arduino boards based on the ATmega328P. All levels but a passing understanding of some programming languages would be helpful.

. - 1. Introduction. - 2. Background. - 3. Digital Input and Output. - 4. Serial Output and Input. - 5. Parameter Passing. - 6. Returning Values. - 7. Arithmetic. - 8. The SimulAVR Simulator. - 9. Logic. - 10. Libraries. - 11. Timer Functions. -12. Conditional Branching. -13. Sleeping. -14 The Watchdog Timer. -15 Pin Synchronization. -16 Analog Input and Output. -17 AVR Libgcc Functions. -18 Generating Assembly Listings. -19 Capacitance Sensor. -20 Using the EEPROM. -21 Odds and Sods. -22 Analog Comparator. -23 Liquid Crystal Library. -24 SPI - Serial Peripheral Interface. -25 I2C - TwoWire Interface. - 26 LM75A Examples. -Appendices. -Index.