def __init__(self,name):
Task.__init__(self,name)
daqmx(
dll.DAQmxCfgImplicitTiming,
(
self.handle,
constants['DAQmx_Val_FiniteSamps'],
c_uint64(200)
)
)
self.stopped = False
def __init__(self,name):
Task.__init__(self,name)
channel = self.get_channels()[0]
physical_channel = create_string_buffer(BUF_SIZE)
daqmx(
dll.DAQmxGetPhysicalChanName,
(
self.handle,
channel,
physical_channel,
BUF_SIZE
)
)
self.exponent = int(
physical_channel.value.split('/')[-1].split('line')[-1]
)
def __init__(self,*channels):
Task.__init__(self,*channels)
daqmx(
dll.DAQmxSetSampQuantSampMode,
(
self.handle,
constants['DAQmx_Val_FiniteSamps']
)
)
daqmx(
dll.DAQmxSetSampTimingType,
(
self.handle,
constants['DAQmx_Val_SampClk']
)
)
def __init__(self, channelDicts=None):
"""
create an analog input task
@param channelDicts: tuple of dictionaries
that can be unpacked into the
L{createChannel} method (e.g.
C{({AITask.PHYSICAL_CHANNEL:'dev0/ai1',...},...)})
"""
Task.__init__(self)
if channelDicts is None:
channelDicts = tuple([])
self.callback = None
self.acquiring = False
def callback(handle, eType, samples, callbackData):
samples = self.readSamples()
self.stopSampling()
if self.callback is not None: self.callback(samples)
return 0
DAQmxDoneEventCallbackPtr = CFUNCTYPE(c_int, c_void_p, c_int, c_uint32,
c_void_p)
c_callback = DAQmxDoneEventCallbackPtr(callback)
self.c_callback = c_callback
daqmx(dll.DAQmxRegisterDoneEvent,
(self.handle, 0, self.c_callback, None))
for channelDict in channelDicts:
self.createChannel(channelDict)
daqmx(dll.DAQmxSetSampTimingType,
(self.handle, constants['DAQmx_Val_SampClk']))
daqmx(dll.DAQmxSetSampQuantSampMode,
(self.handle, constants['DAQmx_Val_FiniteSamps']))
sampClkMaxRate = c_double()
daqmx(dll.DAQmxGetSampClkMaxRate, (self.handle, byref(sampClkMaxRate)))
daqmx(dll.DAQmxSetSampClkRate, (self.handle, sampClkMaxRate))
def __init__(self,channelDicts=None):
"""
create an analog input task
@param channelDicts: tuple of dictionaries
that can be unpacked into the
L{createChannel} method (e.g.
C{({AITask.PHYSICAL_CHANNEL:'dev0/ai1',...},...)})
"""
Task.__init__(self)
if channelDicts is None:
channelDicts = tuple([])
self.callback = None
self.acquiring = False
def callback(handle,eType,samples,callbackData):
samples = self.readSamples()
self.stopSampling()
if self.callback is not None: self.callback(samples)
return 0
DAQmxDoneEventCallbackPtr = CFUNCTYPE(c_int, c_void_p, c_int, c_uint32, c_void_p)
c_callback = DAQmxDoneEventCallbackPtr(callback)
self.c_callback = c_callback
daqmx(
dll.DAQmxRegisterDoneEvent,
(
self.handle,
0,
self.c_callback,
None
)
)
for channelDict in channelDicts:
self.createChannel(channelDict)
daqmx(
dll.DAQmxSetSampTimingType,
(
self.handle,
constants['DAQmx_Val_SampClk']
)
)
daqmx(
dll.DAQmxSetSampQuantSampMode,
(
self.handle,
constants['DAQmx_Val_FiniteSamps']
)
)
sampClkMaxRate = c_double()
daqmx(
dll.DAQmxGetSampClkMaxRate,
(
self.handle,
byref(sampClkMaxRate)
)
)
daqmx(
dll.DAQmxSetSampClkRate,
(
self.handle,
sampClkMaxRate
)
)
def __init__(self,name):
Task.__init__(self,name)
self.count = 0
def get_units(self):
return Task.get_units(self).values()[0]