Enhancing the accuracy of standard embedded RTC module with random synchronization events and dynamic calibration

• Autorzy: Blazinsek I. , Chowdhury A.

Identyfikatory

ISBN

10.15199/48.2016.11.60

Warianty tytułu

PL

Poprawa dokładności modułu zegara RTC z losową synchronizacją I dynamiczną kalibracją

• Języki publikacji: EN

Abstrakty

EN

This paper presents a three-step calibration method for improving the accuracy of the standard crystal oscillator, which is running the embedded RTC (real time clock) module in a standalone not networked sensor device. The first is the analysis and verification of the hardware design. The second step includes implementation of the static calibration procedure where special attention is given to the power use. In the last step the dynamic calibration procedure is implemented, based on the random synchronization events. The developed method should offer a mix of good stability and power efficiency, small footprint and competitive price.

PL

Zaprezentowano metodę kalibracji i poprawy dokładności generatora wykorzystywanego we wbudowanym module zegara RTC (real time clock).

Słowa kluczowe

EN

accuracy improvement; accuracy enhancement; calibration procedure; calibration method

PL

zegar kwarcowy; kalibracja

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2016
• Tom: R. 92, nr 11
• Strony: 248--251
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Blazinsek I.

• Margento R&D, Gosposvetska c. 84, 2000 Maribor, Slovenia

autor

Chowdhury A.

• Margento R&D, Gosposvetska c. 84, 2000 Maribor, Slovenia

Bibliografia

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• [11] MSP430 32-kHz Crystal Oscillators, Available online: http://www.ti.com/lit/an/slaa322b/slaa322b.pdf
• [12] RTC Crystal Deviation & Compensation Simulator V1.0, Available online: http://www.ricoh.com/LSI/product_rtc/info/compensation_m.pdf
• [13] Huang, L.; Fu, W.; Tan F.; A temperature compensating method for crystal oscillator, Chinese Patent Application Number 200410022680.3, June 3, 2004.
• [14] Li, M.-Q.; Huang, X.-H.; Tan F.; Fan, Y.-H.; Liang X.; A Novel Microcomputer Temperature-Compensating Method for an Overtone Crystal Oscillator", Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions., vol.52, no.11, pp.1919- 1922, Nov, 2005.
• [15] Achenbach, R.; Feuerstack-Raible, M. ; Hiller, F. ; Keller, M. ; Meier, K. ; Rudolph, H. ; Saur-Brosch, R.; A digitally temperature-compensated crystal oscillator. IEEE Journal of Solid-State Circuits 2000, 35, 1502-1506.
• [16] Deno, S.; Hahnlen, C. ; Landis, D. ; Aurand, R.; A low cost microcontroller compensated crystal oscillator. Frequency Control Symposium (FCS), 1997 IEEE International, Orlando, U.S., 28-30 May 1997, pp. 954-960
• [17] Esterline, J.C.; Temperature compensation of crystal oscillators using an Artificial Neural Network. Frequency Control Symposium (FCS), 2012 IEEE International, Baltimore, U.S., 21-24 May 2012, pp. 1-7
• [18] Slovenian Environment Agency - National Meteorological Service of Slovenia, Temperature statistics for the city of Celje, Avalible online: http:// http://meteo.arso.gov.si/

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.