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6 Dienstag 21 6 2022 Messe-News embedded world – the official daily 2022 Mittlerweile ist es schon eine ganze Weile her dass auch im Hardware-Bereich der Open-Source-Gedanke Fuß gefasst hat Bereits 2011 wurde die erste Spezifikation der RISC-V-ISA publiziert 2015 wiederum wurde die RISC-V Foundation – heute RISC-V International – als gemeinnützige Vereinigung heute mit Sitz in der Schweiz gegründet um Erweiterungen des Befehlssatzes zu pflegen und eine Community aufzubauen Aus den anfänglichen 29 Mitgliedern ist mittlerweile eine globale Organisation mit mehr als 2 000 Mitgliedern in über 70 Ländern geworden Calista Redmond CEO von RISC-V International erklärt „In dieser Zeit haben wir eine unglaubliche technische Dynamik erlebt und viele strategische Investitionen aller Beteiligten erfahren “ Die Bewegung um eine offene Hardware habe sich von ihren Ursprüngen in akademischen Labors „schnell zu einer multinationalen strategischen Notwendigkeit entwickelt wobei RISC-Vdie dominierende offene Befehlssatzarchitektur darstellt“ so Redmond weiter Wurde RISC-Vanfänglich noch besonders im Embedded-Bereich zum Einsatz gebracht in dem niedrige Leistungsaufnahme und ein kleiner Formfaktor ausschlaggebend sind hätte sich mittlerweile ein enormes Momentum rund um RISC-Vgebildet Redmond weiter „Die Community die RISC-Vnutzt bewegt sich mittlerweile auch in viele andere Richtungen die deutlich komplexere und leistungsfähigere Arbeitslasten umfassen denn RISC-Vfindet mittlerweile auch Einzug in Mobiltelefone Automotive-Anwendungen Laptops und Server – einschließlich HPC-Applikationen “ Aus Redmonds Sicht hat die Bandbreite an Möglichkeiten von RISC-Vzu einer Revolution in der Prozessor-Modulund Systementwicklung geführt Redmond geht in ihrem Vortrag auf der embedded world Conference auf die wichtigsten Treiber hinter dem schnellen Wachstum von RISC-Vals Organisation ein und auf die Bedeutung der Organisation als wesentlicher Baustein für „eine neue Ära des Open Computing“ Sie befasst sich außerdem mit Prognosen von Analysten der Marktdynamik und der Zukunft von RISC-Vim gesamten Computing-Umfeld in allen Branchen und in allen Regionen Iris Stroh Markt Technik RISC-V Einsatz in allen Bereichen Von Embedded bis Enterprise How do you define realtime? Andreas Willig Getting reliable results in a maximally predetermined time When it comes to embedded we‘re speaking of milliseconds or even shorter time spans What trends do you see influencing the realtime systems market? Willig It‘s the decentralized and distributed controls that are becoming increasingly significant – and that in different areas of application like industrial or building automation plus transportation and safety Field buses with realtime capability and TSNenabled Ethernet are important elements of the trend Plus security of course – without which networked solutions are vulnerable Doesn‘t that call for fast clocked expensive special processors? Willig Fast clocking and costly – that‘s the way it used to be Today you find attractively priced processors with specialized cores like the Arm Cortex-R5 used in the new Am64xx and Am243x Sitara processors from Texas Instruments It makes realtime easy for edge applications And how does it do it? Willig The R5 core comes with a special so called tightly coupled memory TCM It avoids the unpredictable access behavior of caches and the program code in this memory always has the same time to execute Added to that you get timed deterministic interrupt handling implemented directly in hardware and independent of software Isn‘t just faster clocking enough? Willig Fast enough isn‘t automatically the same as deterministic What if – for whatever reason – it isn‘t fast enough? You shouldn‘t risk that Plus you get an overhead that you don‘t want in an embedded area What do you mean by that? Willig Faster means more effort more power consumption means more cooling investment higher costs larger scale and heavier – all the things you don‘t want for embedded Thanks to the Sitara AM64xx and AM243x realtime specialists we can produce the pincompatible modules of the TQMxX4XxL series with just 38 by 38 mm in size and passively cooled To meet the need for functional safety there‘s also an isolated Cortex-M4 core with its own memory and I Os to provide the necessary safety independently of the other cores What about realtimecapable communication? Willig Thanks to integrated programmable realtime units PRUs of the MCU CPU the modules feature flexible industrial communication skills including complete protocol stacks for EtherCAT slave Profinet device EtherNet IP adapter and IO Link master Plus you have capability for Gigabit Ethernet and TSNbased protocols And the PRUs enable additional interface functions in a system on chip including sigmadelta decimation filter and absolute encoder interfaces Overall the modules support up to four Gigabit Ethernet ports with realtime capability two normal GbE ports two CAN FD interfaces and as many Andreas Willig Product Manager of TQ-Group „You can‘t get into security early enough “ The TQMxX4XxL series currently comes in six different processor versions as nine UARTs In addition you have timers and pulsewidth modulators There is also no lack of general interfaces USB 2 0 SerDes lane USB 3 1 PCIe with integrated PHY SDIO I 2 C SPI and SD card can all be configured When it comes to networking there‘s always the „insecurity“ of security Willig That‘s something you can‘t look into early enough If you want to add security in your project at the end you will lose a lot of time and security gaps will crop up It‘s best to look into security right away when starting a development That‘s the reason why additionally to the functions integrated in processors for our modules there‘s an optional secure element offering an endtoend security chain right from the start What trends do you see coming in the realtime environment? Willig With more computers at the edge the environment will become more heterogeneous the performance classes and functional demands increasingly different Our new TQMxX4XxL series consequently comes in six processor versions matching different demands What makes this possible is that processor developers like Texas Instruments design their series more and more fine granular for lowercost coverage of differing demands For hardware developers that means increasing effort to keep up – but with modules you can cleverly thwart the growing complexity Tobias Schlichtmeier Elektronik TQ-Group Hall 5 Booth 125 Track Keynote Datum Uhrzeit Session Titel 21 6 11 00-11 30 Session 10 1 RISC-V General Building Open Hardware Momentum from Embedded to Enterprise RISC-V International Halle 1 Stand 550 Ima ge T Q-Gr oup Interview with Andreas Willig Product Manager of TQ-Group Compact realtime specialists Realtime is becoming increasingly important for embedded applications But what exactly is realtime? And how do developers find the right basis for their application? Questions we put to Andreas Willig Product Manager of TQ-Group Calista Redmond CEO von RISC-V International Im ag e TQ -Gro up Bild R ISC -V In te rn at ion al