ARM Cortex-M Bare-Metal Programming in C

ARM Cortex-M Bare-Metal Programming with C: A Practical Guide to Embedded Firmware Development

Master ARM Cortex-M bare-metal programming with C and learn how to build practical embedded firmware without relying on an operating system or high-level frameworks.

This hands-on technical guide takes you through ARM Cortex-M architecture, Embedded C, and direct register-level programming using the STM32F446RET6 microcontroller and NUCLEO-F446RE development board.

Whether you are developing your embedded programming skills or strengthening your firmware engineering knowledge, this book provides a practical path from microcontroller fundamentals to complete embedded applications.

• Understand ARM Cortex-M architecture, memory organization, and processor operation.

• Write efficient Embedded C code for microcontrollers.

• Configure GPIO and control hardware through direct register access.

• Work with timers, counters, PWM, and timing operations.

• Implement UART, SPI, and I2C communication.

• Configure ADC and DAC peripherals for analog signal processing.

• Understand interrupts, exceptions, and the Nested Vectored Interrupt Controller (NVIC).

• Use DMA for efficient data transfers.

• Build startup code and configure linker scripts.

• Design event-driven firmware and bare-metal scheduling systems.

• Debug firmware, diagnose faults, and improve reliability.

• Apply firmware testing, validation, security, and deployment practices.

Move beyond isolated programming examples with three integrated applications:

• Sensor Monitoring System: Combine ADC, I2C, UART, filtering, and system health reporting.

• Event-Driven Controller: Apply GPIO, timers, interrupts, state management, and safe output control.

• High-Performance Data Acquisition System: Use timer-triggered ADC conversion, DMA, buffer management, data processing, and UART reporting.

Work with the Arm GNU Toolchain, C17, CMSIS, CMake, Ninja, OpenOCD, and GDB while learning the foundations of professional embedded firmware development.

• Electronics and electrical engineering students.

• Embedded systems and firmware developers.

• STM32 and ARM Cortex-M enthusiasts.

• C programmers transitioning into microcontroller development.

• Engineers interested in bare-metal programming and hardware-level control.

If you want to understand how microcontrollers work beneath the abstraction layers and develop practical skills in ARM Cortex-M programming, STM32 development, Embedded C, and bare-metal firmware engineering, this book provides a structured technical foundation to help you get started.