Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7740e..95z&link_type=abstract
Software and Cyberinfrastructure for Astronomy. Edited by Radziwill, Nicole M.; Bridger, Alan. Proceedings of the SPIE, Volume 7
Astronomy and Astrophysics
Astronomy
Scientific paper
As well-known, system on a programmable chip (SOPC) is widely used in a variety of field control systems , due to their flexible configurations and intelligent stand-alone characteristics. They are also increasingly used in astronomical instrument control nowadays. For those complex and diverse systems, a number of different control strategies are stored in FLASH, but the controller of on-chip determines which one to load. At the same time, it can be switched intelligently and remotely to form a multi-strategy control system, so as to extend the control functions and achieve system on-line reconfiguration quickly. In this paper we describe a design concept and realization method of a multistrategy control system on the basis of FPGA-based system on a chip. Its hardware core is Altera's Cyclone series EP3C25 chip .In SOPC BUILDER development environment ,a control system is constructed, which consists of NIOS II soft core as CPU ,REMOTE_UPDATE IP core and control algorithms as well. The concept and design has been verified in the field controllers for various astronomical applications. Satisfactory results have been obtained.
Zhu Dan
Zhu Yuhua
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