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

Segger J-Scope

Solid Sands' SuperTest C and C++ Compiler Test and Validation Suite


SuperTest is the test and validation suite for C and C++ compilers that has tracked the (ISO) language specifications for more than 30 years.

It is a complete validation environment with:

A huge library of hand-written tests.
A large body of generated tests.
A framework to easily set-up and run compiler validations.


Many standards require a validated compiler.

Do you really know what your compiler does and doesn't do?


For more information click here

Segger J-Scope

embOS Tracealyzer gives streaming trace on SEGGER J-Link


embOS-Trace from Percepio gives a deep insight into the runtime world of SEGGER embOS using J-Link debug probes. Percepio embOS-Trace is the latest member in Percepio’s Tracealyzer family and the embOS integration has been developed in collaboration with SEGGER.


It provides continuous trace streaming of runtime events, such as scheduling, interrupt handlers, kernel calls and application events using software-defined trace


Click here for Percepio range of RTOS trace tools





5th November

High Integrity Software is a conference that is an absolute must for anyone working in the area.


As well as a host of good quality technical papers, There is an exhibition of tools and services relevant to high integrity development . See video of last year's event above.

Phaedrys systems will be exhibiting and giving a opresentation.

More information at


STIMULUS by Argosim

by Argosim


STIMULUS is the first modeling and simulation tool that enables system architects to edit, debug and test functional real-time systems requirements.


STIMULUS helps you to detect ambiguous, incorrect, missing, or conflicting requirements and to create the high-quality specifications needed for real-time safety-critical standards compliance.

Validating requirements before you start to code means you disrupt the traditionally error-prone development process―you make requirements right the first time―and your real-time system achieves standards quality criteria sooner and for less cost. For More Information 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-C2011 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