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mca.py
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mca.py
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import logging
from collections import OrderedDict
from .signal import (Signal, EpicsSignal, EpicsSignalRO)
from .device import (Device, Component as Cpt, DynamicDeviceComponent as DDC,
Kind)
from .areadetector import EpicsSignalWithRBV as SignalWithRBV
logger = logging.getLogger(__name__)
class ROI(Device):
# 'name' is not an allowed attribute
label = Cpt(EpicsSignal, 'NM', lazy=True)
count = Cpt(EpicsSignalRO, '', lazy=True)
net_count = Cpt(EpicsSignalRO, 'N', lazy=True)
preset_count = Cpt(EpicsSignal, 'P', lazy=True)
is_preset = Cpt(EpicsSignal, 'IP', lazy=True)
bkgnd_chans = Cpt(EpicsSignal, 'BG', lazy=True)
hi_chan = Cpt(EpicsSignal, 'HI', lazy=True)
lo_chan = Cpt(EpicsSignal, 'LO', lazy=True)
def __init__(self, prefix, *, read_attrs=None, configuration_attrs=None,
name=None, parent=None, **kwargs):
super().__init__(prefix, read_attrs=read_attrs,
configuration_attrs=configuration_attrs,
name=name, parent=parent, **kwargs)
def add_rois(range_, **kwargs):
'''Add one or more ROIs to an MCA instance
Parameters
----------
range_ : sequence of ints
Must be be in the set [0,31]
By default, an EpicsMCA is initialized with all 32 rois.
These provide the following Components as EpicsSignals (N=[0,31]):
EpicsMCA.rois.roiN.(label,count,net_count,preset_cnt, is_preset,
bkgnd_chans, hi_chan, lo_chan)
'''
defn = OrderedDict()
for roi in range_:
if not (0 <= roi < 32):
raise ValueError('roi must be in the set [0,31]')
attr = 'roi{}'.format(roi)
defn[attr] = (ROI, '.R{}'.format(roi), kwargs)
return defn
class EpicsMCARecord(Device):
'''SynApps MCA Record interface'''
stop_signal = Cpt(EpicsSignal, '.STOP', kind='omitted')
preset_real_time = Cpt(EpicsSignal, '.PRTM', kind=Kind.config | Kind.normal)
preset_live_time = Cpt(EpicsSignal, '.PLTM', kind='omitted')
elapsed_real_time = Cpt(EpicsSignalRO, '.ERTM')
elapsed_live_time = Cpt(EpicsSignalRO, '.ELTM', kind='omitted')
spectrum = Cpt(EpicsSignalRO, '.VAL')
background = Cpt(EpicsSignalRO, '.BG', kind='omitted')
mode = Cpt(EpicsSignal, '.MODE', string=True, kind='omitted')
rois = DDC(add_rois(range(0, 32), kind='omitted'), kind='omitted')
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# could arguably be made a configuration_attr instead...
self.stage_sigs['mode'] = 'PHA'
def stop(self, *, success=False):
self.stop_signal.put(1)
class EpicsMCA(EpicsMCARecord):
'''mca records with extras from mca.db'''
start = Cpt(EpicsSignal, 'Start', kind='omitted')
stop_signal = Cpt(EpicsSignal, 'Stop', kind='omitted')
erase = Cpt(EpicsSignal, 'Erase', kind='omitted')
erase_start = Cpt(EpicsSignal, 'EraseStart', trigger_value=1, kind='omitted')
check_acquiring = Cpt(EpicsSignal, 'CheckACQG', kind='omitted')
client_wait = Cpt(EpicsSignal, 'ClientWait', kind='omitted')
enable_wait = Cpt(EpicsSignal, 'EnableWait', kind='omitted')
force_read = Cpt(EpicsSignal, 'Read', kind='omitted')
set_client_wait = Cpt(EpicsSignal, 'SetClientWait', kind='omitted')
status = Cpt(EpicsSignal, 'Status', kind='omitted')
when_acq_stops = Cpt(EpicsSignal, 'WhenAcqStops', kind='omitted')
why1 = Cpt(EpicsSignal, 'Why1', kind='omitted')
why2 = Cpt(EpicsSignal, 'Why2', kind='omitted')
why3 = Cpt(EpicsSignal, 'Why3', kind='omitted')
why4 = Cpt(EpicsSignal, 'Why4', kind='omitted')
class EpicsMCAReadNotify(EpicsMCARecord):
'''mca record with extras from mcaReadNotify.db'''
start = Cpt(EpicsSignal, 'Start', kind='omitted')
stop_signal = Cpt(EpicsSignal, 'Stop', kind='omitted')
erase = Cpt(EpicsSignal, 'Erase', kind='omitted')
erase_start = Cpt(EpicsSignal, 'EraseStart', trigger_value=1, kind='omitted')
check_acquiring = Cpt(EpicsSignal, 'CheckACQG', kind='omitted')
client_wait = Cpt(EpicsSignal, 'ClientWait', kind='omitted')
enable_wait = Cpt(EpicsSignal, 'EnableWait', kind='omitted')
force_read = Cpt(EpicsSignal, 'Read', kind='omitted')
set_client_wait = Cpt(EpicsSignal, 'SetClientWait', kind='omitted')
status = Cpt(EpicsSignal, 'Status', kind='omitted')
class EpicsMCACallback(Device):
'''Callback-related signals for MCA devices'''
read_callback = Cpt(EpicsSignal, 'ReadCallback')
read_data_once = Cpt(EpicsSignal, 'ReadDataOnce')
read_status_once = Cpt(EpicsSignal, 'ReadStatusOnce')
collect_data = Cpt(EpicsSignal, 'CollectData')
class EpicsDXP(Device):
'''All high-level DXP parameters for each channel'''
preset_mode = Cpt(EpicsSignal, 'PresetMode', string=True)
live_time_output = Cpt(SignalWithRBV, 'LiveTimeOutput', string=True)
elapsed_live_time = Cpt(EpicsSignal, 'ElapsedLiveTime')
elapsed_real_time = Cpt(EpicsSignal, 'ElapsedRealTime')
elapsed_trigger_live_time = Cpt(EpicsSignal, 'ElapsedTriggerLiveTime')
# Trigger Filter PVs
trigger_peaking_time = Cpt(SignalWithRBV, 'TriggerPeakingTime')
trigger_threshold = Cpt(SignalWithRBV, 'TriggerThreshold')
trigger_gap_time = Cpt(SignalWithRBV, 'TriggerGapTime')
trigger_output = Cpt(SignalWithRBV, 'TriggerOutput', string=True)
max_width = Cpt(SignalWithRBV, 'MaxWidth')
# Energy Filter PVs
peaking_time = Cpt(SignalWithRBV, 'PeakingTime')
energy_threshold = Cpt(SignalWithRBV, 'EnergyThreshold')
gap_time = Cpt(SignalWithRBV, 'GapTime')
# Baseline PVs
baseline_cut_percent = Cpt(SignalWithRBV, 'BaselineCutPercent')
baseline_cut_enable = Cpt(SignalWithRBV, 'BaselineCutEnable')
baseline_filter_length = Cpt(SignalWithRBV, 'BaselineFilterLength')
baseline_threshold = Cpt(SignalWithRBV, 'BaselineThreshold')
baseline_energy_array = Cpt(EpicsSignal, 'BaselineEnergyArray')
baseline_histogram = Cpt(EpicsSignal, 'BaselineHistogram')
baseline_threshold = Cpt(SignalWithRBV, 'BaselineThreshold')
# Misc PVs
preamp_gain = Cpt(SignalWithRBV, 'PreampGain')
detector_polarity = Cpt(SignalWithRBV, 'DetectorPolarity')
reset_delay = Cpt(SignalWithRBV, 'ResetDelay')
decay_time = Cpt(SignalWithRBV, 'DecayTime')
max_energy = Cpt(SignalWithRBV, 'MaxEnergy')
adc_percent_rule = Cpt(SignalWithRBV, 'ADCPercentRule')
max_width = Cpt(SignalWithRBV, 'MaxWidth')
# read-only diagnostics
triggers = Cpt(EpicsSignalRO, 'Triggers', lazy=True)
events = Cpt(EpicsSignalRO, 'Events', lazy=True)
overflows = Cpt(EpicsSignalRO, 'Overflows', lazy=True)
underflows = Cpt(EpicsSignalRO, 'Underflows', lazy=True)
input_count_rate = Cpt(EpicsSignalRO, 'InputCountRate', lazy=True)
output_count_rate = Cpt(EpicsSignalRO, 'OutputCountRate', lazy=True)
mca_bin_width = Cpt(EpicsSignalRO, 'MCABinWidth_RBV')
calibration_energy = Cpt(EpicsSignalRO, 'CalibrationEnergy_RBV')
current_pixel = Cpt(EpicsSignal, 'CurrentPixel')
dynamic_range = Cpt(EpicsSignalRO, 'DynamicRange_RBV')
# Preset options
preset_events = Cpt(SignalWithRBV, 'PresetEvents')
preset_mode = Cpt(SignalWithRBV, 'PresetMode', string=True)
preset_triggers = Cpt(SignalWithRBV, 'PresetTriggers')
# Trace options
trace_data = Cpt(EpicsSignal, 'TraceData')
trace_mode = Cpt(SignalWithRBV, 'TraceMode', string=True)
trace_time_array = Cpt(EpicsSignal, 'TraceTimeArray')
trace_time = Cpt(SignalWithRBV, 'TraceTime')
class EpicsDXPLowLevelParameter(Device):
param_name = Cpt(EpicsSignal, 'Name')
value = Cpt(SignalWithRBV, 'Val')
class EpicsDXPLowLevel(Device):
num_low_level_params = Cpt(EpicsSignal, 'NumLLParams')
read_low_level_params = Cpt(EpicsSignal, 'ReadLLParams')
parameter_prefix = 'LL{}'
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self._parameter_cache = {}
def get_low_level_parameter(self, index):
'''Get a DXP low level parameter
Parameters
----------
index : int
In the range of [0, 229]
Returns
-------
param : EpicsDXPLowLevelParameter
'''
try:
return self._parameter_cache[index]
except KeyError:
pass
prefix = '{}{}'.format(self.prefix, self.parameter_prefix)
name = '{}_param{}'.format(self.name, index)
param = EpicsDXPLowLevelParameter(prefix, name=name)
self._parameter_cache[index] = param
return param
class EpicsDXPMapping(Device):
apply = Cpt(EpicsSignal, 'Apply')
auto_apply = Cpt(SignalWithRBV, 'AutoApply')
auto_pixels_per_buffer = Cpt(SignalWithRBV, 'AutoPixelsPerBuffer')
buffer_size = Cpt(EpicsSignalRO, 'BufferSize_RBV')
collect_mode = Cpt(SignalWithRBV, 'CollectMode')
ignore_gate = Cpt(SignalWithRBV, 'IgnoreGate')
input_logic_polarity = Cpt(SignalWithRBV, 'InputLogicPolarity')
list_mode = Cpt(SignalWithRBV, 'ListMode')
mbytes_read = Cpt(EpicsSignalRO, 'MBytesRead_RBV')
next_pixel = Cpt(EpicsSignal, 'NextPixel')
pixel_advance_mode = Cpt(SignalWithRBV, 'PixelAdvanceMode')
pixels_per_buffer = Cpt(SignalWithRBV, 'PixelsPerBuffer')
pixels_per_run = Cpt(SignalWithRBV, 'PixelsPerRun')
read_rate = Cpt(EpicsSignalRO, 'ReadRate_RBV')
sync_count = Cpt(SignalWithRBV, 'SyncCount')
class EpicsDXPBaseSystem(Device):
channel_advance = Cpt(EpicsSignal, 'ChannelAdvance')
client_wait = Cpt(EpicsSignal, 'ClientWait')
dwell = Cpt(EpicsSignal, 'Dwell')
max_scas = Cpt(EpicsSignal, 'MaxSCAs')
num_scas = Cpt(SignalWithRBV, 'NumSCAs')
poll_time = Cpt(SignalWithRBV, 'PollTime')
prescale = Cpt(EpicsSignal, 'Prescale')
save_system = Cpt(SignalWithRBV, 'SaveSystem')
save_system_file = Cpt(EpicsSignal, 'SaveSystemFile')
set_client_wait = Cpt(EpicsSignal, 'SetClientWait')
class EpicsDXPMultiElementSystem(EpicsDXPBaseSystem):
# Preset info
preset_events = Cpt(EpicsSignal, 'PresetEvents')
preset_live_time = Cpt(EpicsSignal, 'PresetLive')
preset_real_time = Cpt(EpicsSignal, 'PresetReal')
preset_mode = Cpt(EpicsSignal, 'PresetMode', string=True)
preset_triggers = Cpt(EpicsSignal, 'PresetTriggers')
# Acquisition
erase_all = Cpt(EpicsSignal, 'EraseAll')
erase_start = Cpt(EpicsSignal, 'EraseStart', trigger_value=1)
start_all = Cpt(EpicsSignal, 'StartAll')
stop_all = Cpt(EpicsSignal, 'StopAll')
# Status
set_acquire_busy = Cpt(EpicsSignal, 'SetAcquireBusy')
acquire_busy = Cpt(EpicsSignal, 'AcquireBusy')
status_all = Cpt(EpicsSignal, 'StatusAll')
status_all_once = Cpt(EpicsSignal, 'StatusAllOnce')
acquiring = Cpt(EpicsSignal, 'Acquiring')
# Reading
read_baseline_histograms = Cpt(EpicsSignal, 'ReadBaselineHistograms')
read_all = Cpt(EpicsSignal, 'ReadAll')
read_all_once = Cpt(EpicsSignal, 'ReadAllOnce')
# As a debugging note, if snl_connected is not '1', your IOC is
# misconfigured:
snl_connected = Cpt(EpicsSignal, 'SNL_Connected')
# Copying to individual elements
copy_adcp_ercent_rule = Cpt(EpicsSignal, 'CopyADCPercentRule')
copy_baseline_cut_enable = Cpt(EpicsSignal, 'CopyBaselineCutEnable')
copy_baseline_cut_percent = Cpt(EpicsSignal, 'CopyBaselineCutPercent')
copy_baseline_filter_length = Cpt(EpicsSignal, 'CopyBaselineFilterLength')
copy_baseline_threshold = Cpt(EpicsSignal, 'CopyBaselineThreshold')
copy_decay_time = Cpt(EpicsSignal, 'CopyDecayTime')
copy_detector_polarity = Cpt(EpicsSignal, 'CopyDetectorPolarity')
copy_energy_threshold = Cpt(EpicsSignal, 'CopyEnergyThreshold')
copy_gap_time = Cpt(EpicsSignal, 'CopyGapTime')
copy_max_energy = Cpt(EpicsSignal, 'CopyMaxEnergy')
copy_max_width = Cpt(EpicsSignal, 'CopyMaxWidth')
copy_peaking_time = Cpt(EpicsSignal, 'CopyPeakingTime')
copy_preamp_gain = Cpt(EpicsSignal, 'CopyPreampGain')
copy_roic_hannel = Cpt(EpicsSignal, 'CopyROIChannel')
copy_roie_nergy = Cpt(EpicsSignal, 'CopyROIEnergy')
copy_roi_sca = Cpt(EpicsSignal, 'CopyROI_SCA')
copy_reset_delay = Cpt(EpicsSignal, 'CopyResetDelay')
copy_trigger_gap_time = Cpt(EpicsSignal, 'CopyTriggerGapTime')
copy_trigger_peaking_time = Cpt(EpicsSignal, 'CopyTriggerPeakingTime')
copy_trigger_threshold = Cpt(EpicsSignal, 'CopyTriggerThreshold')
# do_* executes the process:
do_read_all = Cpt(EpicsSignal, 'DoReadAll')
do_read_baseline_histograms = Cpt(EpicsSignal, 'DoReadBaselineHistograms')
do_read_traces = Cpt(EpicsSignal, 'DoReadTraces')
do_status_all = Cpt(EpicsSignal, 'DoStatusAll')
# Time
dead_time = Cpt(EpicsSignal, 'DeadTime')
elapsed_live = Cpt(EpicsSignal, 'ElapsedLive')
elapsed_real = Cpt(EpicsSignal, 'ElapsedReal')
idead_time = Cpt(EpicsSignal, 'IDeadTime')
# low-level
read_low_level_params = Cpt(EpicsSignal, 'ReadLLParams')
# Traces
read_traces = Cpt(EpicsSignal, 'ReadTraces')
trace_modes = Cpt(EpicsSignal, 'TraceModes', string=True)
trace_times = Cpt(EpicsSignal, 'TraceTimes')
class SaturnMCA(EpicsMCA, EpicsMCACallback):
pass
class SaturnDXP(EpicsDXP, EpicsDXPLowLevel):
pass
class Saturn(EpicsDXPBaseSystem):
'''DXP Saturn with 1 channel example'''
dxp = Cpt(SaturnDXP, 'dxp1:')
mca = Cpt(SaturnMCA, 'mca1')
class MercuryDXP(EpicsDXP, EpicsDXPLowLevel):
pass
class Mercury1(EpicsDXPMultiElementSystem):
'''DXP Mercury with 1 channel example'''
dxp = Cpt(MercuryDXP, 'dxp1:')
mca = Cpt(EpicsMCARecord, 'mca1')
class SoftDXPTrigger(Device):
'''Simple soft trigger for DXP devices
Parameters
----------
count_signal : str, optional
Signal to set acquisition time (default: 'preset_real_time')
preset_mode : str, optional
Default preset mode for the stage signals (default: 'Real time')
mode_signal : str, optional
Preset mode signal attribute (default 'preset_mode')
stop_signal : str, optional
Stop signal attribute (default 'stop_all')
'''
count_time = Cpt(Signal, value=None, doc='bluesky count time')
def __init__(self, *args, count_signal='preset_real_time',
stop_signal='stop_all', mode_signal='preset_mode',
preset_mode='Real time',
**kwargs):
super().__init__(*args, **kwargs)
self._status = None
self._count_signal = getattr(self, count_signal)
stop_signal = getattr(self, stop_signal)
self.stage_sigs[stop_signal] = 1
mode_signal = getattr(self, mode_signal)
self.stage_sigs[mode_signal] = preset_mode
def stage(self):
if self.count_time.get() is None:
# remove count_time from the stage signals if count_time unset
try:
del self.stage_sigs[self._count_signal]
except KeyError:
pass
else:
self.stage_sigs[self._count_signal] = self.count_time.get()
super().stage()