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Firmware Development · London

Firmware Development in London

Writing the low-level software that drives London manufacturers' hardware — bringing up boards, talking to peripherals, managing power. It sits closer to the silicon than application code, which means the errata sheet matters as much as the datasheet and a bug can present as a hardware fault nobody can reproduce.

Why this comes up

The problem

New hardware needs bringing to life, the vendor's example code is a starting point rather than a product, and nobody in the team has worked at this level.

What you get

What we deliver

  • Board bring-up with clocks, power and peripherals verified individually
  • Drivers written against the errata as well as the documentation
  • Bootloader arrangement supporting recovery from a failed update
  • Power consumption measured rather than estimated, as this decides battery life
  • Interrupt and timing behaviour verified with instruments, not inference
  • Production programming and test approach defined before manufacture

Want this scoped for your business in London?

Thirty minutes, no charge, no sales script. You leave with a written summary of what firmware development would actually involve — whether or not you use us.

Book a 30-minute call

Working in London

London

London clients usually come to us because they want senior people actually on their project rather than a large agency's B team, and because Midlands rates buy considerably more delivery per pound.

Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates.

Sectors we work with in London

  • Financial Services
  • Professional Services
  • Technology
  • Media
  • Hospitality
  • Retail

What we work with

Technologies and platforms

  • C
  • Rust
  • STM32
  • Zephyr

Who we work with

Industries we serve

  • Manufacturing
  • Medical devices
  • Automotive
  • Consumer electronics
  • Energy and utilities

Why us

Why London businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Firmware Development in London — common questions

Why do errata matter so much?
Because silicon ships with known defects and the datasheet describes intended behaviour. A peripheral that misbehaves under a specific combination of settings is documented in the errata rather than the manual, and time lost to this is the classic firmware debugging story.
What does bring-up involve?
Proving each part of the board works before anything depends on it — power rails, clocks, memory, then each peripheral in isolation. Skipping to application code on unverified hardware produces failures that could be firmware or could be the board, and separating them later is slow.
How is the bootloader significant?
It determines whether a device can recover. A bootloader that validates an image before committing to it, and can fall back to a known-good version, turns a failed update into an inconvenience. Without one, a bad release becomes a return.
How do you debug timing problems?
With instruments. Logic analysers and oscilloscopes show what actually happened on the pins, which is frequently not what the code implies. Reasoning about timing from source alone is how firmware bugs survive for months.
Do you work with businesses across Greater London?
Yes. We are based in Leicester, United Kingdom and work with clients throughout London, including London and the surrounding Greater London area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of London businesses do you usually work with?
Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates. Beyond that we work across Financial Services, Professional Services, Technology, Media, Hospitality and Retail.
Do you cover the areas around London?
Yes — we work throughout London, including Reading, Milton Keynes, Cambridge, Brighton. London is an urban area of roughly 9,000,000+, and we take on work across the wider Greater London region rather than the city boundary alone.

Talk to us about Firmware Development in London

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom