© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2024
A. EliaszZephyr RTOS Embedded C Programminghttps://doi.org/10.1007/979-8-8688-0107-5_2

2. A Review of RTOS Fundamentals

Andrew Eliasz1  
(1)
First Technology Transfer, Croydon, Surrey, UK
 
Traditional embedded systems were stand-alone systems that were not extensively networked to other systems. Communication, when present, typically, was over a simple communications serial link such as RS232, or HART. HART [1] is an industrial protocol that can communicate over legacy 4–20 mA analog instrumentation current loops, but these days there is also a wireless version of HART and there are HART modems that can be used to run HART over RS232. Later specialized serial ...

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