Zephyr RTOS
RTOS Zephyr
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České vysoké učení technické v Praze
Czech Technical University in Prague
Czech Technical University in Prague
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Abstract
Zephyr je nový, svobodný operační systém reálného času, který slibuje poskytovat bezpečnou platformu pro vývoj aplikací na širokém spektru podporovaných desek. Tato práce popisuje proces portování tohoto systému na desku Avnet MicroZed a přidání podpory vzdáleného ladění pomocí GDB. Náš port je založen na a rozšiřuje konfiguraci jiné, oficiálně podporované desky. Dále je vytvořeno rozšíření stávající implementace GDB stub pro 32 bitovou architekturu ARM. Výkon systému Zephyr na desce MicroZed je zatím výrazně horší, než Linux, protože pro správnou funkcionalitu musí být CPU cache vypnuta. Pokud toto spojíme s omezenou možností ladění, tak usuzujeme, že je stále potřeba velké množství práce, aby mohl Zephyr nahradit zavedené operační systémy jako VxWorks nebo Linux.
Zephyr is a new, free and open source real-time operating system that intends to provide a secure, feature-rich application platform on a wide range of supported boards. This work describes the process of porting the system to Avnet MicroZed board and adding support for remote debugging using GDB. Our board port builds upon and expands the configuration of another officially supported device. Additionally, we develop an extension to the existing GDB stub implementation for the 32-bit ARM architecture. The performance of Zephyr on the MicroZed board is currently much worse than Linux, as the CPU caches need to be disabled for proper functionality. When combined with the limited troubleshooting capabilities, we conclude that a lot of work is still required to replace established operating systems, such as Linux or VxWorks, with Zephyr.
Zephyr is a new, free and open source real-time operating system that intends to provide a secure, feature-rich application platform on a wide range of supported boards. This work describes the process of porting the system to Avnet MicroZed board and adding support for remote debugging using GDB. Our board port builds upon and expands the configuration of another officially supported device. Additionally, we develop an extension to the existing GDB stub implementation for the 32-bit ARM architecture. The performance of Zephyr on the MicroZed board is currently much worse than Linux, as the CPU caches need to be disabled for proper functionality. When combined with the limited troubleshooting capabilities, we conclude that a lot of work is still required to replace established operating systems, such as Linux or VxWorks, with Zephyr.