Here we have a list of articles and publications about NuttX. If you have a suggestion of article to be included to this page, please send an email to: private@nuttx.apache.org
This paper presents the study of the implementation for a new feature that allows the NuttX RTOS, handling the power consumption in order to optimize it. The project was focused on controlling different power states, following the global trend in portable devices.
In this document, it’s explained all the necessary information that was necessary before to start developing all the modules, and also contains all the steps that were followed in order to get the final system. After this project, NuttX is able to handle 4 different power modes, this power modes were designed in order to reduce the power consumption gradually when the RTOS is idle, and also the system is able to return to its higher performance mode when it’s required.
Part of the requirements in this project was to built a benchmark application in order to verify the functionality of this new feature, in the document is explained not only how this application works, but also all the hardware used in order to acquire the data that were used in the analysis
Diego Sánchez López
The project proposes a lightweight packet filter in a Real-Time Operating System (RTOS), aiming to provide an additional security layer to embedded systems, allowing the users to create their security policies through the filtering process of the ingress network packets. The iplite firewall was implemented on NuttX OS based on the best practices of the Linux Netfilter firewall and consists basically of two parts: an application on user space, homonymously called iplite, which serves to provide the user CLI, besides a module on kernel space, netfilterlite, responsible for providing the APIs. As an open-source project, our solution allows the reproducibility of the experiments and the firewall core adaptation to other operating systems.
Eduardo Menezes Moraes Rodrigo Teixeira de Souza Rafael Oliveira da Rocha Lourenc¸o Alves Pereira Jr.
The thesis aims to evaluate and integrate a low-cost solution for a small area multidrop communication with focus on reliability and real-time predictability usable in embedded systems. Based on a review of applicable standards, an integration of cheap MCU devices with 10BASE-T1S Ethernet SPI MAC-PHYs is proposed.
The Apache NuttX RTOS is proposed as a suitable operating system for the MCU devices. An overview of NuttX network driver internals is provided in a dedicated chapter to provide background for the major outcome of the project – the implementation of Onsemi NCV7410 SPI MAC-PHY NuttX driver for the NuttX operating system.
At the end, the methods used for an evaluation and testing of the implemented driver are discussed. The system properties are then verified on a simple drive-by-wire demonstrator.
Michal Matiáš
Apache NuttX