Bare-Metal Embedded C Lessons

A collection of structured notes, code examples, and lessons learned while working through Bare Metal Embedded C Programming: Develop High-Performance Embedded Systems with C for ARM microcontrollers.
This repo serves as both a personal learning log and a resource for others exploring ARM Cortex-M microcontrollers and bare-metal C programming.

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📘 Book Reference

This repository is based on the concepts and exercises from Bare Metal Embedded C Programming.

⚠️ Note: No copyrighted book content is reproduced. This is strictly a collection of personal notes, implementations, and insights.

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📂 Repository Structure

/chapter01\_intro/       # Toolchain setup, first project
/chapter02\_registers/   # Register-level programming examples
/chapter03\_io/          # GPIO, UART, timers
/chapter04\_interrupts/  # NVIC, ISRs
/chapter05\_drivers/     # Abstractions and modular drivers
/lessons.md             # Running log of insights and notes

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📝 Lessons Learned

Each chapter folder contains:

• Source code examples tested on STM32 boards
• Notes explaining key concepts
• Practical takeaways about embedded C programming

A running summary is also kept in lessons.md.

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⚡ How to Use

1. Hardware

   • ARM Cortex-M board (e.g., STM32 Nucleo, Discovery kit, or similar)

2. Toolchain

   • ARM GCC toolchain (arm-none-eabi-gcc)
   • OpenOCD or ST-LINK for flashing/debugging

3. Build & Run

   cd chapter01_intro
   make flash

embedded-c bare-metal arm-cortex-m stm32 firmware-development real-time-systems embedded-systems microcontrollers low-level-programming learning-notes