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


Razorcat & TESSY Introduces Fault injection for testing

Razorcat, has announced that the forthcoming release (4.1) of the TESSY unit and integration test tool will support automated fault injection.


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


26th annual Safety Critical Systems Symposium

6-8th Febuary, Principal Hotel, York


This is the 25th Anaversary event. Phaedrus Systems will once again be at the Symposium with our new range of tools for safety critical and high reliability development for more information click here


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



Percepio Launch Tracealyzer4!!

More information click here

See Tracealyzer in space!! Click here

STIMULUS by Argosim

Compiler Validation Service


For safety/security related and critical systems Validation Organisations are demanding validated compilers.  More often validated on-target.   

There is a lot more to validating a compiler than getting a test suite and running it.     Phaedrus Systems can now provide an On-Target compiler Validation Service to the highest standards.


For more information and supporting documents on how to validate a compiler click 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