Introduction to Real-Time Operating System (RTOS)

Micrium, an American company known for embedded software stacks, offers real-time operating systems with clean code, thorough documentation, and top-notch support; it provides a try-before-you-buy evaluation by downloadable source code.

Initialize the RTOS by configuring the startup sequence and internal data structures. Create at least one application task and start the OS scheduler to hand control to highest priority task.

Explain the RTOS task template: a void function with a void pointer, initialize with a parameter struct, then loop forever or until termination, optionally sleeping periodically after waiting for events.

Explore task creation in real-time operating systems, including creating tasks via create and create extended, passing function pointers and arguments, and managing stack, priority, and optional task metadata.

Explore the rtos task services, including runtime priority changes, task name setters and getters, suspend and resume flows, and stack and dcb insights for efficient task management.

Explore how to assign priorities in a multitasking RTOS by classifying tasks into four categories by criticality and efficiency, guided by the Gomar criterion and worst-case execution time checks.

Explore the other semaphore and mutex services in real-time operating systems, including zero-timeout checks, non-blocking calls from interrupt contexts, canceling pending tasks, and the option and the broadcast option.

discover how real-time operating systems use semaphores and signals to synchronize tasks, respond to interrupt service routines, and coordinate foreground and background processes with flags.

Use semaphores in real-time operating systems to synchronize tasks and signal events from interrupts, enabling producer–consumer patterns with ring buffers and waiting tasks.

Explore mailboxes as a core RTOS primitive for inter-task communication, where a mailbox stores messages via pointers, initializes empty, and blocks readers until a message is posted.

Explore other message queue and mailbox services in a real-time operating system (rtos), covering creation, deletion, flush api, and post operation options like broadcast and front option to optimize scheduling.

Use software timers on a single hardware timer with a timer manager to run multiple timers, supporting one-shot and periodic modes, callbacks, and a creation API.