PLS’ Universal Debug Engine now also supports SAFERTOS

PLS Programmierbare Logik & Systeme has expanded its Universal Debug Engine® UDE with a comprehensive add-on for the SAFERTOS® real-time operating system. As a powerful development platform for debugging, testing and system analysis of microcontroller applications, UDE now offers additional and very helpful functions for software development of real-time and safety-critical applications using the SAFERTOS real-time operating system.

SAFERTOS is a pre-emptive, safety critical RTOS from WITTENSTEIN high integrity systems that delivers unprecedented levels of determinism and robustness to embedded systems, whilst using minimal resources. It is used internationally across a wide range of safety critical applications and is renowned for its high software quality. SAFERTOS is available pre-certified by TÜV SÜD to ISO 26262 ASIL D and IEC 61508 SIL 3. A key advantage for customers is the upgrade path from FreeRTOS to SAFERTOS; developers can prototype using FreeRTOS and convert to SAFERTOS at the start of formal development.

The SAFERTOS Add-On from PLS provides an additional window within the UDE framework that provides a comprehensive and detailed view of the SAFERTOS resources and objects. This gives developers access to all information relevant for their development. The information shown by the SAFERTOS Support Window is divided into functional groups which typically include task information, queues, semaphores and mutexes, and timers, as well as information about the current configuration. By using separate tab pages the user can easily navigate between these groups. The available information shown by the SAFERTOS Support Window depends on the particular SAFERTOS configuration, which is determined at compile time and does not change during run-time. UDE collects the data via the debug interface directly from the target system. The big advantage of this is that no separate description file is required. This prevents inconsistencies between displayed and actually available RTOS states, which could result from an incorrect creation process.

As an example, aided by the SAFERTOS Add-On, the developer can now comprehend which task is currently active when he debugs a certain function. In addition, the display of blocked and blocking tasks greatly simplifies troubleshooting when deadlocks occur within the application. Last but not least, the available information about the operating system resources, e.g. the stack utilization, supports users to better balance the load of the applications and in general helps in optimization.

WITTENSTEIN high integrity systems

WITTENSTEIN high integrity systems is a safety systems company that produces and supplies real time operating systems and platform solutions to the Automotive, Aerospace, Medical and Industrial sectors worldwide. For more information, please visit

Über die PLS Programmierbare Logik & Systeme GmbH

PLS Programmierbare Logik & Systeme GmbH, based in Lauta (Germany), is the manufacturer of the debugger, test and trace framework Universal Debug Engine® (UDE®). Thanks to its innovative tools for embedded software development, PLS has developed into one of the technology leaders in this field since its foundation in 1990. The UDE combines powerful capabilities for debugging, testing and system-level analysis with efficiency and ease of use. The UAD2pro, UAD2next and UAD3+ access devices of the Universal Access Device (UAD) family complete the comprehensive debug functions of UDE and enable fast, robust and flexible communication with the target system. For further information about our company, products and services, please visit our website at

Firmenkontakt und Herausgeber der Meldung:

PLS Programmierbare Logik & Systeme GmbH
Straße der Freundschaft 92
02991 Lauta
Telefon: +49 (35722) 384-0
Telefax: +49 (35722) 384-69

Jessica Lane
WITTENSTEIN high integrity systems
Telefon: +44 (1275) 395-600
Fax: +44 (1275) 393-630
Jens Braunes
Telefon: +49 (35722) 384-0
Fax: +49 (35722) 384-69
Werner W. Wiesmeier
3W Media & Marketing Consulting
Telefon: +49 (8761) 759203
Fax: +49 (8761) 759201
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