Learn about Eclipse ThreadX, the first open source RTOS certified for safety-critical applications, in this conference talk from OCX 2024. Explore the ThreadX kernel and its SMP features through practical code samples and demonstrations. Discover how this mature RTOS, deployed in over twelve billion devices since 1997, serves as a robust alternative to FreeRTOS and Zephyr. Dive into essential subcomponents including FileX for FAT filesystems, GUIX for user interfaces, NetX Duo for networking, and USBX for USB protocols. Understand the rigorous safety certification process that enables ThreadX to maintain compliance with critical standards like IEC 61508 SIL 4, IEC 62304 SW Safety Class C, ISO 26262 ASIL D, and EN 50128, making it ideal for medical devices, home appliances, software-defined vehicles, and industrial equipment development.