Bespoke Engineering

Custom Embedded Firmware

Firmware that runs close to the metal.

We write bare-metal and RTOS firmware for custom hardware, with timing, memory, and safety budgets defined up front and validated on the real board before hand-off.

Overview

Embedded software lives under tight constraints: limited memory, hard real-time deadlines, and field conditions where nobody is around to press reset. We engineer firmware that respects those constraints, from bare-metal bring-up on a new board to RTOS applications with bounded timing. It is written in modern C and C++, tested on the host as well as the hardware, and structured so it can be maintained long after it ships.

What We Cover

Where Custom Embedded Firmware engagements add the most value.

Bare-Metal & RTOS

From register-level bring-up on new silicon to structured applications on FreeRTOS, Zephyr, and other real-time kernels.

Deterministic & Real-Time

Bounded latency and predictable scheduling, with timing budgets we measure rather than guess at.

Drivers & Peripherals

Drivers for IΒ²C, SPI, UART, USB, ADC/DAC, and custom peripherals, behind clean hardware abstraction layers.

Safety & Reliability

Watchdogs, fault handling, and defensive design for products that must keep running unattended in the field.

Power-Aware Design

Low-power modes, peripheral gating, and wake strategies tuned for battery-powered and energy-constrained devices.

Testable & Observable

Host-side unit tests, hardware-in-the-loop validation, and logging hooks so issues are caught before they ship.

How We Work

A clear, milestone-driven engagement from first call to hand-off.

01

Discovery

We review the hardware, datasheets, and requirements, then define timing, memory, and safety targets up front.

02

Bring-Up

Board bring-up, toolchain setup, and a minimal firmware base that proves the critical peripherals work.

03

Build

Feature development against the agreed budgets, with unit and hardware-in-the-loop tests at each step.

04

Validate & Hand Off

Timing and reliability validation on real hardware, documented and packaged for production and future maintenance.

Built On
C C++ FreeRTOS Zephyr ARM Cortex-M CMake JTAG/SWD

Start an Engagement

Send us your hardware and requirements, and we’ll scope the firmware your product needs, with the timing and safety targets written down.

Or email us directly at contact@iasoft.dev.

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