Embedded Firmware & RTOS Architecture
Deterministic, production-grade firmware engineering written in clean C and C++. We architect software that survives strict timing deadlines, tight memory boundaries, and harsh physical operating environments.
Disciplines & Specializations
Core Firmware Engineering Capabilities
Bare-Metal C/C++
Ultra low-latency control loops, direct register manipulation, memory-mapped I/O, and cycle-accurate peripheral management on ARM Cortex, AVR, and RISC-V.
RTOS Kernel Integration
Multi-threaded task scheduling, priority inversion mitigation, deterministic message queues, semaphores, and memory protection unit (MPU) configuration with FreeRTOS, Zephyr, and ThreadX.
Hardware Driver Stacks
Non-blocking interrupt and DMA circular ring buffer drivers for UART, SPI, I2C, Quad-SPI Flash, SD/MMC, CAN FD, and USB device/host stacks.
Secure Bootloaders & OTA
Failsafe dual-bank bootloaders, cryptographic signature verification (ECDSA/RSA), CRC-32 integrity checks, and over-the-air firmware update mechanisms.
Low-Power Optimization
Deep sleep mode scheduling, peripheral power gating, dynamic frequency scaling, and battery life optimization for multi-year remote IoT deployments.
Safety & Static Analysis
MISRA-C:2012 guidelines enforcement, static analysis (PC-Lint / Clang-Tidy), deterministic state machine modeling, and unit testing with Ceedling/Unity.
Development Rigour
Supported Microcontrollers & Toolchains
Our engineers possess deep cross-platform silicon experience. We work directly with bare registers and vendor SDKs without being locked into proprietary IDEs:
- ❯ ARM Cortex-M (M0+/M3/M4F/M7/M33): STM32, TI MSPM0/TM4C, NXP LPC/Kinetis, Microchip SAM
- ❯ Wireless SoCs: ESP32 (Wi-Fi/BLE), Nordic nRF52/nRF53, TI CC13xx/CC26xx
- ❯ Toolchains & Debugging: GCC, Clang, CMake, Ninja, Keil MDK, IAR Embedded Workbench, OpenOCD, J-Link
- ❯ Automated Verification: HIL simulation test benches, Unity/CMock test harnesses, CI/CD automated build gates
Engineering Deliverables
- • Fully documented ANSI C/C++ source code
- • CMake / Make build system & linker scripts
- • Unit test suite with line & branch coverage reports
- • Doxygen generated API reference documentation
- • Hardware flashing & production manufacturing scripts
- • MISRA-C compliance audit report