Modern embedded devices often require some form of network connectivity, to offer features like remote configuration, diagnostics, and firmware updates. The availability of open-source, lightweight, and portable protocol stacks, makes this goal relatively easy to accomplish, even on very low-cost devices. Interoperability is guaranteed because they implement, at the very least, the TCP/IP and UDP/IP protocols on an Ethernet interface. However, these applications are quite undemanding for what concerns real-time and, for this reason, little is known about the real-time characteristics of the underlying protocol stacks. This paper shows that an open-source protocol stack, when properly coupled with a real-time operating system and an Ethernet interface, can indeed reach an acceptable performance level and thus support an Ethernet-based fieldbus protocol on the device side.

Real-Time Performance of an Open-Source Protocol Stack for Low-Cost, Embedded Systems / CIBRARIO BERTOLOTTI, Ivan; Hu, Tingting. - STAMPA. - (2011), pp. 1-8. ((Intervento presentato al convegno IEEE Conference on Emerging Technologies and Factory Automation (ETFA 2011) [10.1109/ETFA.2011.6059000].

Real-Time Performance of an Open-Source Protocol Stack for Low-Cost, Embedded Systems

CIBRARIO BERTOLOTTI, IVAN;HU, TINGTING
2011

Abstract

Modern embedded devices often require some form of network connectivity, to offer features like remote configuration, diagnostics, and firmware updates. The availability of open-source, lightweight, and portable protocol stacks, makes this goal relatively easy to accomplish, even on very low-cost devices. Interoperability is guaranteed because they implement, at the very least, the TCP/IP and UDP/IP protocols on an Ethernet interface. However, these applications are quite undemanding for what concerns real-time and, for this reason, little is known about the real-time characteristics of the underlying protocol stacks. This paper shows that an open-source protocol stack, when properly coupled with a real-time operating system and an Ethernet interface, can indeed reach an acceptable performance level and thus support an Ethernet-based fieldbus protocol on the device side.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2503322
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