L35: Tasks in real-time operating systems(RTOS)

Welcome to Lecture 35 of the course “Embedded C Programming” by Prof. Nitin Chandrachoodan.
Full Course: https://study.iitm.ac.in/es/course_pages/CS2101.html

Video Overview
This lecture introduces the concept of tasks in operating systems, explaining their function as independent execution units, often referred to as threads. Learn how to create and schedule tasks using examples compatible with the Walkway simulator and Arduino-style code. Understand task states—running, ready, blocked, suspended, and terminated—and their transitions within the task lifecycle. Explore task management functions like task creation, deletion, and priority assignment. The lecture also discusses run-once, forever-looping, and event-based tasks, and explains cooperative versus preemptive multitasking in real-time operating systems such as FreeRTOS.

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