An inter-device communication protocol for modular smart-objects

Brama, R.; Tundo, Piergiuseppe; Ducata, Armando Della; Malvasi, Angelo

doi:10.1109/wf-iot.2014.6803203

Cited by 9 publications

(11 citation statements)

References 7 publications

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“…The dynamic switch among the peripherals present in microcontrollers gives also the possibility to slaves to safely trigger events captured by the master, surpassing the rigid scheme of classic master-slave architectures in which only master is responsible for every action on the bus. The fixed number of wires, together with the pushpull data exchange provided by SPI, make possible to create simpler circuital layouts for devices with several components without renouncing to a high-speed throughput [17]. I 2 C protocol, natural candidate for a comparison, although provides some variants of these procedures is limited by its RC connection, as explained in [1].…”

Section: Discussionmentioning

confidence: 99%

“…An example of a possible bus using FlexSPI is shown in the following figure 16 [17]. where, for example, the master is simply used as a sink collecting data from slaves, e.g.…”

Section: Description Of the Flexspi Fundamentalsmentioning

confidence: 99%

“…As soon as the master needs to receive data from a particular slave, it explicitly gives the possession of the SOMI line and disables the pull-up resistor, granting only to that device the PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES right to occupy the channel with its transmission. An example of a possible bus using FlexSPI is shown in the following figure 16 [17].…”

Section: Description Of the Flexspi Fundamentalsmentioning

confidence: 99%

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OPERATION PRINCIPLE, ADVANCED PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES

Visconti

Giannotta²,

Brama³

et al. 2017

International Journal on Smart Sensing and Intelligent Systems

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In this paper, we report on hardware structure, operation mode and software development for a new advanced communication protocol whose aim is obtaining a fully shared SPI bus with a fixed amount of wires, without renouncing to advantages of a push-pull output stage and obtaining an architecture capable of great flexibility. All four signals of a classic SPI protocol are entirely shared by the slaves on bus: when a master wants to communicate with a particular device, it will perform an addressing at packet level: starting from its main characteristics, various adopted solutions to realize a shared SPI bus will be analyzed, explaining how a communication session is performed. The firmware structure was designed as a software stack composed by interacting layers, tracing model of similar protocols that share with FlexSPI some features. Some of the advanced procedures that can be performed thanks to this protocol will be discussed, highlighting the suitability of FlexSPI for dynamic smart objects; in fact, by adding these features to developed framework, it is possible to explore and appreciate expandability of this communication protocol, making it suitable to meet advanced IoT requirements of smart objects. FlexSPI can be built like aMAC layer above the SPI bus, to process all necessary pieces of information to perform the packet level addressing, using a stack having a layered architecture. This is idea followed in the firmware development, to implement this communication protocol, experimentally verified in the performed and reported communication tests, confirming that it is possible to obtain a shared push-pull bus.

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Section: Discussionmentioning

confidence: 99%

“…An example of a possible bus using FlexSPI is shown in the following figure 16 [17]. where, for example, the master is simply used as a sink collecting data from slaves, e.g.…”

Section: Description Of the Flexspi Fundamentalsmentioning

confidence: 99%

Section: Description Of the Flexspi Fundamentalsmentioning

confidence: 99%

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OPERATION PRINCIPLE, ADVANCED PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES

Visconti

Giannotta²,

Brama³

et al. 2017

International Journal on Smart Sensing and Intelligent Systems

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“…Brama et al [2] desenvolveram uma arquitetura de nós de sensores customizável e modular, de forma que as necessidades de comunicação entre os dispositivos sejam atendidas por uma abordagem aprimorada da Interface Periférica Serial (Serial Peripheral Interface -SPI) chamada flexSPI. As características do SPI relativas ao baixo consumo de energia e alta largura de banda foram mantidas, enquanto novos recursos foram habilitados tais como diagnóstico de conexão, descoberta de dispositivos e sincronização.…”

Section: Trabalhos Relacionadosunclassified

“…Os três primeiros [13,2,15] trabalhos relacionados apresentam propostas de configuração automática de dispositivos.Nenhum deles integra a configuração automática a um barramento de serviços, de forma a estender as funcionalidades do barramento, que, neste trabalho, funciona como um gateway de objetos inteligentes para a Web das Coisas.…”

Section: Trabalhos Relacionadosunclassified

Web of Things

Andrade

Bastos

Prazeres

2014

Proceedings of the 20th Brazilian Symposium on Multimedia and the Web

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The Web of Things proposes to make devices available by using Web standards and protocols. Several different devices, which can be connected to the Web of Things, demand efforts to implement specific services to deploy each of such devices. For that reason, this paper presents an approach to automatically publish and configure devices as Web of Things resources. Our approach presents models that implement device functionalities and uses such models to automatically generate Web Services for devices. This paper also presents: i) dynamic discovery and configuration of devices when connecting to a local network by using Zeroconf protocol; ii) automatic generation of applications for publishing devices on the Web of Things.

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Design of a Telemedicine Ubiquitous Architecture Based on the Smart Device mHealth Arduino 4G

Rivera-Julio

2016

Communications in Computer and Information Science

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An inter-device communication protocol for modular smart-objects

Cited by 9 publications

References 7 publications

OPERATION PRINCIPLE, ADVANCED PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES

OPERATION PRINCIPLE, ADVANCED PROCEDURES AND VALIDATION OF A NEW FLEX-SPI COMMUNICATION PROTOCOL FOR SMART IoT DEVICES

Web of Things

Design of a Telemedicine Ubiquitous Architecture Based on the Smart Device mHealth Arduino 4G

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