TrgGemSequence.py

#!/usr/local/bin/python
#
#                               Copyright 2004
#                                     by
#                        The Board of Trustees of the
#                     Leland Stanford Junior University.
#                            All rights reserved.
#

__facility__ = "Online"
__abstract__ = "GLAST LAT Trigger Sequence Interface classes"
__author__   = "Jim Panetta <panetta@slac.stanford.edu> SLAC - GLAST I&T"
__date__     = "2/14/04"
__version__  = "$Revision: 2.1 $"
__release__  = "$Name: R04-12-00 $"
__credits__  = "SLAC"

import LATTE.copyright_SLAC

"""TrgGemSequence: Hardware implementation of TrgSequence"""

from TrgSequence import TrgSequence
from TrgSequence import TrgDefaultSequence

    
class TrgGemSequence(TrgSequence):
  """\brief TrgGemSequence
  Hardware abstraction for TrgSequence
  """
  def __init__(self): # constructor...
    """\brief TrgGemSequence constructor
    """
    TrgSequence.__init__(self)
    self.__gem = None
    
  def __setGEM(self, gem):
    self.__gem = gem
    

  def eventNumber(self):
    """\brief eventNumber() method
    Returns 0
    """
    return ( self.__gem.GEMC.SEQUENCE & 0x1fffc ) >> 2 
    
  def eventTag(self):
    """brief eventTag() method
    Returns 0
    """
    return ( self.__gem.GEMC.SEQUENCE & 0x3 )
    

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