Bare Metal Programming Practice Repository

This repository contains code and learning materials focused on bare-metal programming for embedded systems. The goal of this project is to practice writing drivers for various communication protocols and peripherals, such as I2C, SPI, USART, and GPIO, and to better understand how hardware interacts with software at a low level.

Table of Contents

1. Project Overview
2. Technologies Used
3. Folder Structure
4. Drivers Implemented
   • I2C
   • SPI
   • USART
   • GPIO
5. Setup
6. Contributing
7. License

Project Overview

The purpose of this repository is to dive deep into embedded systems programming by working at the bare metal level, i.e., writing code without the support of an operating system or large frameworks. The focus is on implementing low-level hardware drivers to understand how software controls hardware, including peripherals and communication protocols commonly used in microcontrollers.

Technologies Used

• Microcontroller: STM32, ATmega, or other platforms
• Languages: C, Assembly (optional)
• Communication Protocols: I2C, SPI, USART
• Peripherals: GPIO, LEDs, etc.
• Development Tools: STM32CubeIDE, GCC, ARM Cortex toolchain, or AVR toolchain

Folder Structure

Drivers Implemented

I2C(not compeleted)

The I2C driver allows for communication between the microcontroller and various I2C-compatible devices, such as sensors and memory chips.

• Features:
  • Master mode communication
  • Support for multi-byte reads and writes

SPI(not completed)

The SPI driver is used to interact with external devices over the SPI protocol, such as EEPROMs, sensors, and displays.

• Features:
  • Full-duplex communication
  • Configurable clock speed and polarity

USART

The USART driver handles serial communication between the microcontroller and a PC or other devices.

• Features:
  • Configurable baud rate
  • Support for interrupts and polling modes

GPIO

The GPIO driver is responsible for controlling and monitoring the state of the general-purpose input/output pins.

• Features:
  • Configurable pin modes (input/output)
  • Pull-up and pull-down resistor control

Setup

Prerequisites

1. Toolchain: You will need an ARM Cortex toolchain or AVR toolchain, depending on your microcontroller. Install gcc-arm-none-eabi for ARM or avr-gcc for AVR.
2. Hardware: A development board (e.g., STM32 Nucleo, Arduino, etc.) and any necessary external peripherals.

Build and Flash Instructions

1. Clone this repository:

   git clone https://github.com/yourusername/bare-metal-practice.git
   cd bare-metal-practice