• Bloodlight: A Medical PPG Testbed

    Codethink is working on a project to design a fully open-source (hardware and software) research device for experimenting with shining light into skin and detecting the light that reflects, gets absorbed and passes through. This kind of technology is widely deployed for measuring heart rates.

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  • Bringing Lorry into the 2020s

    In the mid-2010s, Codethink developed the Baserock software suite for specifying, developing, and building Linux-based systems. The work has been used by several long-standing customers and Codethink even uses it for some of our own infrastructure. This blog will take you through work done to modernise one of the components of Baserock - Lorry.

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  • How to use Tracecompass to analyse kernel traces from LTTng

    Codethink is a software company that works on various client projects; ranging from medical, finance, automotive. In these different areas of engagement; we are trusted to work on various types of problems that clients face with their systems. One such problem encountered required us looking at a userspace software where the program was occasionally not responding on time.

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  • Fixing Rust's test suite on RISC-V

    In my previous blog post I introduced my work to improve Rust's support for RISC-V Linux systems. Since then I have fixed a couple of interesting compiler bugs. This blog post describes my process to track down these issues; explains some rustc internals; and discusses movement in the broader Rust community regarding RISC-V.

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  • The challenges behind electric vehicle infrastructure

    In 2019, electric vehicles accounted for 7.4% of total passenger car registrations in the UK. For an ever-more environmentally conscious population, this presents a very low number. Electric vehicles are often seen as a next step, or even a solution for greener transportation. Indeed, electric vehicles are becoming a more accessible option for an increasing number of consumers, and getting closer to a wider public adoption.

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  • Investigating kernel user-space access

    In 2018, Codethink worked with Lukas Bulwahn from BMW on a project investigating some core functionality of the Linux kernel that is relevant to safety considerations of an assumed system. We wanted to share some of our findings from this work, as it could prove useful to communities interested in using Linux in a safety-critical context.

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  • Improving RISC-V Linux support in Rust

    RISC-V is a new Instruction Set Architecture developed in the open and available for use without paying a license fee. This means there are no barriers to achieving open hardware implementations, which opens the door to performant (mostly) open hardware processors...

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  • Creating a Build toolkit using the Remote Execution API

    Building and testing at scale often involves codebases with millions of lines of code, worked upon by thousands of developers. One solution to the problem of building as quickly as possible is simply delegating that responsibility — not to the machine that the developer is working on, or even to a server that the CI job has been dispatched to, but to a server farm...

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