Phaedrus Systems supports engineers at all stages of embedded safety-critical and high-integrity projects. Tools available include requirements capture for IEC 61508, EN 50128 , DO178 and nuclear applications, a SIL3 RTOS and compiler validation reports. Consultants have experience working on automotive, rail and aerospace applications, meeting standards such as IEC 61508 SIL4, and D0178B. Backing these is a wide range of other relevant embedded tools, including code checkers, USB and TCP/IP stacks, development kits, debuggers and ICEs. There is also a Technical library


Phaedrus Systems Appointed Razorcat TESSY distributor for UK


TESSY automates the whole unit test cycle including regression testing for your embedded software in C/C++ on different target systems.

As an easy-to-install and easy to operate testing tool TESSY guides you through the unit test workflow from the project setup through the test design and execution to the result analysis and reporting.

TESSY takes additionally care of the complete test organization as well as the test management, including requirements, coverage measurement, and traceability click here for more information

Press Release for Razorcat


New Thinking in Human Factors for Safety

6th April

Hilton London Euston hotel


More information including speaker bios and abstracts at: http://scsc.org.uk/e480

Speakers are:

Chris Parsons, Aktins Global
Neil May, NATS
Chris Lowe, Liv Systems
Carl Sandom, iSys Integrity Ltd
Alexander Eriksson, University of Southampton
Christian Fairburn, Reliable Interaction



Percepio Tracealyzer

Percepio Tracealyzer 1-2-1 Getting Started training


Book a free 45 minute consulting session with Senior FAE Niclas Lindblom. This is not a slideshow presentation. Video conference with Niclas to get started with Tracealyzer using your own project, tools, and hardware. Each session is unique. More information click here

Also new series of Tracealyzer tutorial videos. They include everything from using STM32 CubeMX to create a project, configuring the trace library, debug probe, and STM32 Nucleo board, all the way using Tracealyzer to view the FreeRTOS trace data.

More information click here

STOP PRESS: See Tracealyzer in space!!
Click here

STIMULUS by Argosim

and write your own language!


A fascinating article on the lexicon of writing your own programming language click here and an introduction to FORTH click here for book

FORTH is a fascinating language that is quietly used by many well known companies for a more comprehensive look try Practical and theoretical Forth Development by Peter Knaggs


Additional Forth Resources from here


We have compilers and debuggers for FORTH for Windows, MAC, Linux and DOS environments. Including free Lite versions for download. see here


Independent Advice.

Independent advice is strengthened by the company's founder being an active participant in several standards bodies, including ISO C, C++ and IEC 61508-3, and a principal author of MISRA-C:2004. and member of the MISRA-C2012 team .If you need advice please call or email.



IET Business PArtner

Safety Critical Systems Club


National Microelectronics Institute

IoT Security Foundation


IoT Security Foundation




Software Systems Engineering Initiative

Eur Ing