Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pabei..24..160w&link_type=abstract
Progress in Astronomy (ISSN 1000-8349), Vol. 24, No. 2, p. 160 - 166 (2006)
Astronomy and Astrophysics
Astronomy
Astronomical Facilities And Technique, Pci Interrupt, Synchronize, Driver Programme, Pci 9054 Chip, Second Signal
Scientific paper
This paper describes hardware and software designs for a PCI board based on PCI bridge chip PCI 9054. The board is used to generate two clocks interrupt to realize the synchronous tracking of the radio telescope. The standard second signal generates the 20 ms (40 ms or 50 ms) clock interval interrupt which is used to send the tracking commands. The two clock interrupts input to the computer via PCI interrupt interface INTA# can be distinguished from the different interrupt codes in driver programme. the application programme will send commands to the antenna interface to implement the tracking of the radio telescope after it responses the interrupts. The control process will be described through three aspects. First is the hardware design. Second is the driver programme design, and the third is the application programme design. The first and second aspects are described in details.
Fan Qing-Yuan
Wang Jin-Qing
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