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Flags are used for inter-process synchronisation, or to request some
specific actions.
- ASTRO (Astronomical Computation requested) (CLEARED)
This flag is set by OBS when changing source. It is expected and cleared
by ASTRJ when relevant computations have been done.
- TCPIP (Dialog with antenna micros) (CLEARED)
This flag is set by FLAG1S every second. It is expected and cleared by
INTERP, which reads information from the antenna micros on such
occasions.
- TRACK Tracking (SET)
This flag indicate the Antennas and subreflectors are in position
and tracking. It is set and cleared by INTERP. It is expected by CORREL
to start data acquisition.
- UT (UT time change) (CLEARED)
This flag indicate the UT time has changed. It is set by FLAG1S and
expected and cleared by CORREL.
- COR (CORrelator acquisition required) (CLEARED)
This flag is set by OBS when an acquisition is requested. It is
expected and cleared by CORREL.
- SUP (Interferometer setup done) (CLEARED)
This flag is set by task CORREL whenever the parameters of an acquisition
are ready. It is expected and cleared by RDI.
- DAT (Interferometer data ready) (CLEARED)
This flag is set by task CORREL_SPECTRA whenever new data is available
from the correlators. It is expected and cleared by RDI.
- SPECTRE (Correlator data ready) (CLEARED)
This flag is set by CORREL when an acquisition finished. It is expected
and cleared by CORREL_SPECTRA which reads the data from the correlators
and set flags DAT when done.
- ALARM (Alarm) (CLEARED)
This flag may be set by some program. It signals a problem...
- STARTED (Acquisition started) (CLEARED)
This flag is set by CORREL when the acquisition is running. It is
expected and cleared by RDI.
- RED (RDI ready) (SET)
This flag is set by RDI when it is ready. It is expected (and later
cleared) by OBS.
- CONTROLC (
^C
pressed) (CLEARED)
Set when ^C
is pressed in OBS.
Next: Configuration and Initialisation Files.
Up: The Real Time system
Previous: Commons
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Gildas manager
2014-07-01