Embedded operating system and industrial applications: a review

Hee, Yew Ho; Ishak, Mohamad Khairi; Asaari, Mohd Shahrimie Mohd; Seman, Mohamad Tarmizi Abu

doi:10.11591/eei.v10i3.2526

Cited by 4 publications

(3 citation statements)

References 26 publications

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“…Single-board computers deploy operating systems (OSs) which make use of the minimum of the resources available by the embedded microcontroller, and usually with a small memory footprint. Real-time operating systems (RTOSs) are quite common in such devices and embedded systems applications [6,7]. Real-time kernels can be used for developing applications that perform multiple tasks (threads) simultaneously in a deterministic way.…”

Section: Introductionmentioning

confidence: 99%

Timing and Performance Metrics for TWR-K70F120M Device

Adam

2023

Computers

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Currently, single-board computers (SBCs) are sufficiently powerful to run real-time operating systems (RTOSs) and applications. The purpose of this research was to investigate the timing performance of an NXP TWR-K70F120M device with μClinux OS on concurrently running tasks with real-time features and constraints, and provide new and distinct technical data not yet available in the literature. Towards this goal, a custom-built multithreaded application with specific compute-intensive sorting and matrix operations was developed and applied to obtain measurements in specific timing metrics, including task execution time, thread waiting time, and response time. In this way, this research extends the literature by documenting performance results on specific timing metrics. The performance of this device was additionally benchmarked and validated against commonly used platforms, a Raspberry Pi4 and BeagleBone AI SBCs. The experimental results showed that this device stands well both in terms of timing and efficiency metrics. Execution times were lower than with the other platforms, by approximately 56% in the case of two threads, and by 29% in the case of 32-thread configurations. The outcomes could be of practical value to companies which intend to use such low-cost embedded devices in the development of reliable real-time industrial applications.

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Section: Introductionmentioning

confidence: 99%

Timing and Performance Metrics for TWR-K70F120M Device

Adam

2023

Computers

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“…Contiki and TinyOS), and real-time OS (e.g. commercial RTOS-μC/OS-III, FreeRTOS, eCos, embOS, Nucleus RTOS, ThreadX) [7]. Among these real-time OS, both FreeRTOS and eCos are distributed under opensource license.…”

Section: Introductionmentioning

confidence: 99%

“…Among these real-time OS, both FreeRTOS and eCos are distributed under opensource license. Since FreeRTOS real-time kernel or scheduler has a massive ported microcontrollers selection, this can simplify the product development as various complex software modules are available [7]. Other recent review on internet of thing (IoT) OS (e.g.…”

Section: Introductionmentioning

confidence: 99%

An Integration of Open-Source Resources in Distance Teaching for Real-Time Embedded System Using Arduino Microcontroller and Freertos

Chia¹

2022

IJIE

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Distance learning has become a crucial alternativein education system worldwide since the Covid-19 pandemic happened. An affordable and accessible solution is essentialto enable a quality remote teaching and learning experience for each student. Real-Time Embedded System (RTES) is about applying real-time system in an embedded system (e.g., microcontroller) in ways that both logical and temporal requirements are fulfilled. A special attention shall be on the temporal response analysis so that students can have a clear distinction between microcontrollers with and without real-time system.Since there is a lack of accessible traceable studies about how to utilize the open-source platform inintroducing the key RTES concepts, this study aims to evaluate the feasibility of an integration of open-source resources (i.e., SimSo simulator, Arduino platform and FreeRTOSAPI) in teaching RTES remotely and to provide real-time learning experience about RTES concepts without additional components or wiring out of school. First, each student was introduced to the ways to integrate existing open-source resources so that each of them could develop RTES in their placesusing a FreeRTOS compatible microcontroller.RTES concepts of task, hyperperiod, task scheduling, pre-emption,static-priority scheduling algorithms, and mutual exclusion in resource sharing were delivered using the proposed infrastructure. Results show that an obvious context switch could be observed when pre-emption happened. Finding indicates that the proposed integration was useful for students to understand the complex RTES concepts e.g., task scheduling, pre-emption, and mutuallyexclusion.Since positive responses were received from students in two consecutive semesters, the proposed infrastructure is an affordable and accessible distance learning alternative in assisting students to understand RTES concepts.

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