Embedded Software · Bare-Metal & RTOS Engineering
Custom Embedded Firmware Development Services
Engineering robust, deterministic firmware that executes directly on target microcontrollers and SoCs. We develop low-level drivers, real-time operating systems, industrial communication protocols, and cryptographic OTA bootloaders engineered for 24/7/365 operational uptime.
Engagement Scenarios
When Enterprises Partner With DeviceLab For This Service
We collaborate with forward-thinking enterprises, OEMs, and product innovators navigating critical hardware challenges.
Transitioning from Hobbyist Arduino to Commercial C/C++
Arduino sketches and open-source hobbyist libraries suffer from unmanaged memory leaks, blocking loops, and lack of deterministic thread control. We rewrite code using official vendor SDKs and preemptive RTOS.
Hardware Bring-Up on Custom Target Boards
Your new PCBA has arrived from assembly, but hardware registers, clock trees, and peripheral buses must be systematically initialized and verified with oscilloscopes and JTAG/SWD probes.
Industrial Communication & Zero-Brick Remote Updates
Deploying devices into mission-critical environments requiring multi-drop Modbus/CAN bus stacks, secure TLS telemetry, and dual-bank cryptographic Over-the-Air (OTA) updates that never brick in the field.
Technical Scope
Core Engineering Capabilities & Specifications
Deep engineering competence verified by laboratory instrumentation and compliant with global manufacturing standards.
✓ Board Support Package (BSP) & Low-Level Drivers
Direct silicon register access and HAL drivers for GPIO, DMA, ADC, DAC, PWM, I2C, SPI, and high-speed UART without third-party abstraction overhead.
✓ Real-Time Kernel (RTOS) Multi-Tasking
Deterministic multi-threaded architecture using FreeRTOS, Zephyr, or CMSIS-RTOS. Mutex-protected shared resources, inter-task queues, and software timers.
✓ Industrial Fieldbus & Networking Stacks
Hardened Modbus RTU/TCP master/slave, CAN 2.0B / CAN-FD, RS485 multi-drop protocols, Profinet, and secure MQTT/HTTPS telemetry over Cellular LTE-M, Wi-Fi, and Ethernet.
✓ Cryptographic Dual-Bank OTA Bootloader
A/B Flash memory partitioning with SHA-256 digital signature validation, secure rollback on self-test failure, and protection against accidental field bricking.
✓ Ultra-Low Power & Sleep Optimization
Deep sleep state sequencing, dynamic clock scaling, peripheral power gating, and event-driven wakeups for multi-year battery operational lifetime.
✓ Defensive Fault Handling & Black-Box Logging
Independent hardware watchdogs, brownout detection (BOR), stack overflow guards, and persistent non-volatile crash dumps for rapid root-cause analysis.
Comparative Advantage
Engineering Partnership vs. Freelancers & Generic Agencies
Commercial hardware cannot be trusted to amateur experimentation. Why B2B enterprises choose DeviceLab.
Methodology
6-Stage Engineering Lifecycle: Concept to Production
A disciplined, milestone-driven framework eliminating technical risk at each stage before committing capital to tooling.
Architecture & Register Mapping
Defining timing budgets, memory partitions, interrupt priorities, and protocol frames.
BSP & Peripheral Bring-Up
Oscilloscope probing and validation of clocks, power rails, and communication buses.
RTOS Task & Protocol Engineering
Implementing multi-threaded state machines, Modbus/CAN/MQTT stacks, and telemetry logic.
Secure Bootloader & OTA Integration
Integrating dual-bank A/B memory partitions and cryptographic verification.
Laboratory Stress & Burn-In Testing
500-hour continuous stress loops under temperature cycling to verify zero memory leaks.
Handover & Factory Flashing Tools
Delivering complete Git repositories, build toolchains, and automated factory flashing scripts.
Guaranteed Handover
Production Deliverables & 100% Intellectual Property (IP) Handover
You own 100% of the design source files, Git repositories, and manufacturing packages. Zero royalties or vendor lock-in.
- ✓ 100% Commented C/C++ firmware source code in structured Git repositories
- ✓ Pre-configured build toolchain setup (GCC, CMake, VSCode/CLion, Keil/IAR)
- ✓ Production-ready compiled binary images (HEX, BIN, ELF)
- ✓ Dual-bank secure bootloader with automatic rollback logic
- ✓ Automated command-line factory flashing and MAC/key injection scripts
- ✓ Register map documentation and protocol communication specifications
- ✓ Hardware bring-up validation and stress test log reports
Engineering Clarifications
Frequently Asked Questions
Direct answers to commercial, technical, and operational questions from prospective hardware partners.
Which microcontroller and SoC platforms does DeviceLab support? +
Can DeviceLab write firmware for existing hardware designed by another team? +
How do you ensure firmware updates never brick deployed devices? +
Who retains ownership of the firmware intellectual property? +
Ready to Engineer Your Custom Hardware System?
Speak directly with senior hardware and embedded engineers. We evaluate your functional specifications and provide technical architecture recommendations within 24 business hours.