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Journal of Emerging Trends in Computing and Information Sciences >> Call for Papers Vol. 8 No. 3, March 2017

Journal of Emerging Trends in Computing and Information Sciences

Providing Accurate Time Reference with the STM4F32Discovery Embedded System for Purposes of Crystal Calibrations

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Author Iztok Blazinšek
ISSN 2079-8407
On Pages 971-975
Volume No. 4
Issue No. 12
Issue Date January 01, 2014
Publishing Date January 01, 2014
Keywords accurate time base, crystal measuring, oscillator calibration


Abstract

Crystal oscillators are today present in almost every embedded system. They are usually used for precise frequency generation, which can then be used for generating driving processors, microcontrollers, radio transceivers, real time clock generators and other devices which rely on precise and stable frequency for proper operation. This article presents the design of a base system which enables the operator to measure precise time intervals. These intervals can be used to verify clock's stability and to adjust hardware or software parameters if necessary, so as to assure the most accurate frequency generation.
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