Experimental Clock Calibration on a Crystal-Free Mote-on-a-Chip - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2019

Experimental Clock Calibration on a Crystal-Free Mote-on-a-Chip


The elimination of the off-chip frequency reference,typically a crystal oscillator, would bring important benefits in terms of size, price and energy efficiency to IEEE802.15.4compliant radios and systems-on-chip. The stability of on-chip oscillators is orders of magnitude worse than that of a crystal.It is known that as the temperature changes, they can drift more than50ppm/◦C. This paper presents the result of an extensive experimental study. First, we propose mechanisms for crystal-free radios to be able to track an IEEE802.15.4 join proxy, calibrate the on-chip oscillators and maintain calibration against temperature changes. Then, we implement the resulting algorithms on a crystal-free platform and present the results of an experimental validation. We show that our approach is able to track a crystal-based IEEE802.15.4-compliant join proxy and maintain the requested radio frequency stability of±40ppm, even when subject to temperature variation of2◦C/min.
Fichier principal
Vignette du fichier
suciu19experimental.pdf (1.65 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-02266563 , version 1 (14-08-2019)


  • HAL Id : hal-02266563 , version 1


Ioana Suciu, Filip Maksimovic, David Burnett, Osama Khan, Brad Wheeler, et al.. Experimental Clock Calibration on a Crystal-Free Mote-on-a-Chip. IEEE INFOCOM - CNERT 2019 : International Workshop on Computer and Networking Experimental Research using Testbeds, Apr 2019, Paris, France. ⟨hal-02266563⟩
88 View
118 Download


Gmail Facebook X LinkedIn More