The SchedulerThe scheduler is the "brain" of FreeRTOS. It decides which task should be in the Running state. In a preemptive system, the scheduler will immediately switch to a high-priority task the moment it becomes Ready, even if a lower-priority task is currently running.
Semaphores: Used for synchronization or resource management. Binary semaphores act like flags, while counting semaphores manage multiple instances of a resource. freertos tutorial pdf
A standard operating system like Windows or macOS focuses on throughput and user experience. In contrast, a Real-Time Operating System (RTOS) focuses on determinism. In an RTOS, the timing of an operation is just as important as the result itself. FreeRTOS allows you to break your code into independent tasks, each with its own priority, ensuring that critical functions always get CPU time when they need it. Core Concepts of FreeRTOS The SchedulerThe scheduler is the "brain" of FreeRTOS