Three common challenges for RTOS application developers are examined with practical solutions. First, task priority selection is covered with methods including shortest response time, shortest job first, and rate monotonic scheduling (RMS). Second, the importance of creating a dataflow diagram before implementation is highlighted to avoid spaghetti code and clarify data producers, consumers, and RTOS mechanisms like queues, mutexes, and semaphores. Third, proper shared memory protection is discussed, recommending that mutexes be embedded directly within the data structure they protect rather than declared separately, reducing the risk of developers forgetting to acquire the mutex before accessing shared data.
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