Thermal monitoring on FPGAs using ring-oscillators
Entity
UAM. Departamento de Ingeniería InformáticaPublisher
Springer Berlin HeidelbergDate
1997Citation
10.1007/3-540-63465-7_212
Field-Programmable Logic and Applications: 7th International Workshop, FPL '97 London, UK, September 1–3, 1997 Proceedings. Lecture Notes in Computer Science, Volumen 1304. Springer, 1997. 69-78.
ISSN
0302-9743 (print); 1611-3349 (online)ISBN
978-3-540-63465-2 (print); 978-3-540-69557-8 (online)DOI
10.1007/3-540-63465-7_212Funded by
This work has been supported by the CICYT of Spain under contract TIC95-0159. The authors wish to thank Javier Garrido for his valuable contribution during the setup of the experiments.Editor's Version
http://dx.doi.org/10.1007/3-540-63465-7_212Subjects
Computer Hardware; Systems and Information Theory in Engineering; Informática; TelecomunicacionesNote
The final publication is available at Springer via http://dx.doi.org/10.1007/3-540-63465-7_212Proceedings of 7th International Workshop, FPL '97 London, UK, September 1–3, 1997
Rights
© Springer-Verlag Berlin Heidelberg 1997Abstract
In this paper, a temperature-to-frequency transducer suitable for thermal monitoring on FPGAs is presented. The dependence between delay and temperature is used to produce a frequency drift on a ring-oscillator. Different sensors have been constructed and characterized using XC4000 and XC3000 chips, obtaining typical sensibilities of 50 kHz per °C. In addition, the utility of the Xilinx OSC4 cell as thermal transducer has been demonstrated. Although a complete temperature verification system requires a control unit with a frequency counter, the use of ring-oscillators presents several advantages: minimum FPGA elements are required; no analog parts exists; the additional hardware needed (multiplexers, prescaler, etc.) can be constructed using the resources of an FPGA, the thermal-related signals can be routed employing the standard interconnection network of the board, and finally, the sensors can be dynamically inserted or eliminated.
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Google Scholar:Boemo Svcalvinoni, Eduardo Iván
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López Buedo, Sergio
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