Firmware Engineering
Firmware development company delivering MCU firmware development for ARM Cortex, ESP32 and NXP with bare metal embedded programming, secure boot and OTA updates.
Why Expert MCU Firmware Development Matters
High performance, reliable firmware
Secure boot and encrypted updates
Optimized power consumption
Long term maintainability
What Is Firmware Engineering?
As a specialized firmware development company headquartered in Maharashtra, India, EmbedCrest Technology provides embedded software development services covering the complete firmware lifecycle from architecture design through field deployment and long term maintenance. We provide embedded C C++ development services and excel in MCU firmware development, embedded firmware development for IoT devices, and bare metal embedded programming for ARM Cortex-M, Cortex-R, Cortex-A, ESP32, and RISC-V processors, including Rust embedded systems development for safety-critical applications. Our expertise extends to low-level driver development for peripherals, sensors, and communication interfaces. Our engineers design modular, layered firmware architectures that separate hardware abstraction, middleware, and application logic for maximum portability and testability. We specialize in power optimized firmware development, implementing secure boot chains, encrypted over the air update mechanisms, advanced power management state machines, and deterministic real time task scheduling. Every firmware deliverable undergoes static analysis with MISRA-C and CERT-C rulesets, unit testing with mock hardware layers, and integration testing on physical targets. Whether you need a high reliability motor controller, a battery powered sensor node lasting years on a coin cell, or a complex multi core gateway, EmbedCrest delivers firmware that is efficient, secure, and maintainable.
Real World Applications of Firmware Engineering
Battery Powered Wireless Sensor Node
Develop ultra low power firmware for environmental monitoring devices using deep sleep scheduling, event driven wake, and LoRaWAN transmission on Cortex-M0+ MCUs, achieving multi-year battery life on a single CR2032 coin cell.
Secure OTA Update System for Consumer Devices
Implement a dual bank firmware update architecture with cryptographic signature verification, rollback protection, and delta patching to enable secure remote updates for deployed consumer electronics products across global fleets.
Real Time Motor Control for Robotics
Build deterministic RTOS firmware for brushless DC motor control with field oriented control algorithms running at 20 kHz loop rates on STM32 microcontrollers, enabling precise torque and speed regulation for robotic actuators.
Our Bare Metal and RTOS Firmware Development Process
Architecture Design
We specialize in designing scalable firmware architectures that serve as a robust foundation for your product's long term evolution.
Development
Our team is dedicated to writing clean, efficient, and secure code tailored to the specific constraints of your hardware.
Testing
We conduct multi layered testing, including unit, integration, and validation, to identify and resolve defects early in the cycle.
OTA Setup
We implement secure Over the Air (OTA) update mechanisms to allow for remote deployment of improvements and security patches.
Firmware and Embedded Software Development Toolchain
Technologies
Tools
Architecture
Frequently Asked Questions About Firmware Engineering
What is the difference between bare metal and RTOS firmware development?
Bare metal firmware runs directly on the hardware without an operating system, offering minimal overhead and deterministic timing for simple applications. RTOS firmware uses a real time operating system like FreeRTOS or Zephyr to manage multiple concurrent tasks with priority scheduling. We recommend RTOS for complex products with multiple peripherals, communication stacks, and timing constraints.
How do you implement secure over the air firmware updates?
We use a dual bank flash architecture where new firmware is written to an inactive partition, verified with ECDSA or RSA digital signatures, and only swapped to active after integrity checks pass. If validation fails, the device automatically rolls back to the previous working firmware. Transport uses TLS encrypted channels with server authentication.
What coding standards do you follow for firmware development?
We adhere to MISRA-C 2012 and CERT-C secure coding guidelines. All code undergoes static analysis using tools like PC-lint, Polyspace, or Coverity. We enforce code review processes, maintain comprehensive unit test suites using CUnit or Unity test frameworks, and track code coverage metrics to ensure thorough validation.
How do you optimize firmware for low power embedded applications?
We implement multi-level sleep modes, clock gating, peripheral power domains, and event driven architectures that minimize active processor time. We profile current consumption at each operating state using precision measurement tools and optimize wake schedules, DMA transfers, and interrupt handling to achieve microwatt level standby power on target hardware.
What RTOS platforms do you have experience with?
We work extensively with FreeRTOS, Zephyr RTOS, Azure RTOS ThreadX, Micrium uC/OS, and NuttX. We select the RTOS based on your licensing requirements, hardware ecosystem support, middleware availability, and certification needs. For safety critical applications, we use RTOS platforms with IEC 61508 or DO-178C certification packages.
Projects Using This Service
See how we have applied firmware engineering in real engagements.
Related Articles
Read more about firmware engineering and related topics.
