python.subdetectors.sct Namespace Reference

Classes
class	DCSC_Variable_SCT_Config
class	SCT

Functions
def	make_sct_mapping ()
def	hi_nibble (x)
def	lo_nibble (x)
def	check_good_chanstat (iov)

Variables
list	good_states = [C_GOOD, C_MANUAL]

Function Documentation

check_good_chanstat()

def python.subdetectors.sct.check_good_chanstat

(

iov

)

Determine whether CHANSTAT iov is good or bad.

Definition at line 70 of file sct.py.

def check_good_chanstat(iov):
    """
    Determine whether CHANSTAT iov is good or bad.
    """ 
    return (hi_nibble(iov.STATE) in good_states and
            lo_nibble(iov.STATE) in good_states)
             

hi_nibble()

def python.subdetectors.sct.hi_nibble

(

x

)

Definition at line 62 of file sct.py.

def hi_nibble(x): return (x & 0xF0) >> 4

lo_nibble()

def python.subdetectors.sct.lo_nibble

(

x

)

Definition at line 63 of file sct.py.

def lo_nibble(x): return (x & 0x0F)
 
# Documented at: (Visited 20/05/2010)
# https://twiki.cern.ch/twiki/bin/view/Atlas/SctDCSSoftware#FSM_Channel_Status_Byte
C_GOOD, C_MANUAL = 0x1, 0x3

make_sct_mapping()

def python.subdetectors.sct.make_sct_mapping

(

)

Generate a mapping for the channelids in /SCT/DCS/HV to DCSOFL output 
channel ids. The highest two bits can be used to determine the system.
(see `subdets`)

Definition at line 40 of file sct.py.

def make_sct_mapping():
    """
    Generate a mapping for the channelids in /SCT/DCS/HV to DCSOFL output 
    channel ids. The highest two bits can be used to determine the system.
    (see `subdets`)
    """
    from DQUtils.db import Databases
    from DQUtils.channel_mapping import get_channel_ids_names
    f = Databases.get_folder("/SCT/DCS/HV", "COOLOFL_DCS/CONDBR2")
    cids, cnames, cmap = get_channel_ids_names(f)
    
    mapping = {}
    
    subdets = {0: 114, 1: 111, 2: 115}
    
    for cid in cids:
        # The highest-two bits of cid specify which DQ region we're in
        output_subdet = subdets[(cid >> 25) & 0x3]
        mapping.setdefault(output_subdet, []).append(cid)
    
    return mapping
 

Variable Documentation

good_states

list python.subdetectors.sct.good_states = [C_GOOD, C_MANUAL]

Definition at line 68 of file sct.py.