def __init__(self, address=16, channel=1,timeout = 3, echo = False,
front_panel_lockout= False, **kwargs):
'''
Constructor
Parameters
-------------
address : int
GPIB address
channel : int
set active channel. Most commands operate on the active channel
timeout : number
GPIB command timeout in seconds.
echo : Boolean
echo all strings passed to the write command to stdout.
usefule for troubleshooting
front_panel_lockout : Boolean
lockout front panel during operation.
\*\*kwargs :
passed to :func:`visa.GpibInstrument.__init__`
'''
GpibInstrument.__init__(self,
'GPIB::'+str(address),
timeout=timeout,
**kwargs)
self.channel=channel
self.port = 1
self.echo = echo
if not front_panel_lockout:
self.gtl()
def __init__(self, address=16, channel=1, timeout=3, **kwargs):
GpibInstrument.__init__(self,
'GPIB::' + str(address),
timeout=timeout,
**kwargs)
self.channel = channel
self.port = 1
class GPIBBus(VISABus):
"implements communication over GPIB bus using VISA framework"
class SBRclass:
"GPIB status byte register"
MAV = 16 # message available - HAS SOME TROUBLES - it is common object to ALL GPIBBus devices
MSS = 32 # Master Summary Status summarizes the ESB and MAV bits.
semafor = None
lastCMDstring = ''
sbr = SBRclass()
timeout = 5.1 # the commnad issuing and readign timeout
def __init__(self, GPIBaddr, MAVmask=16, IfaceReadyMask=0):
deviceIBName = "GPIB0::%d::INSTR" % GPIBaddr
VISABus.__init__(self, deviceIBName)
self.f = GpibInstrument(deviceIBName)
#self.sbr.semafor = GPIB_semafor
#self.sbr.semafor.acquire()
print self.deviceIBName, ':clearing the device buffer...'
self.f.clear()
#self.sbr.semafor.release()
#self.sbr.MAV = MAVmask # how to detect the reading was don and response is available
self.MAVmaks = MAVmask # sets the message available mask
self.IfaceReadyMask = IfaceReadyMask
return
def __init__(self, address=18, *args, **kwargs):
'''
Initializer
Parameters
--------------
address : int
GPIB address
\*args, \*\*kwargs :
passed to ``visa.GpibInstrument.__init__``
'''
GpibInstrument.__init__(self, 'GPIB::' + str(address), *args, **kwargs)
def __init__(self, address=18, *args, **kwargs):
'''
Initializer
Parameters
--------------
address : int
GPIB address
\*args, \*\*kwargs :
passed to ``visa.GpibInstrument.__init__``
'''
GpibInstrument.__init__(self,'GPIB::'+str(address),*args,**kwargs)
def __init__(self, GPIBaddr, MAVmask=16, IfaceReadyMask=0):
deviceIBName = "GPIB0::%d::INSTR" % GPIBaddr
VISABus.__init__(self, deviceIBName)
self.f = GpibInstrument(deviceIBName)
#self.sbr.semafor = GPIB_semafor
#self.sbr.semafor.acquire()
print self.deviceIBName, ':clearing the device buffer...'
self.f.clear()
#self.sbr.semafor.release()
#self.sbr.MAV = MAVmask # how to detect the reading was don and response is available
self.MAVmaks = MAVmask # sets the message available mask
self.IfaceReadyMask = IfaceReadyMask
return
def __init__(self, address=1, current_axis=1,\
always_wait_for_stop=True,delay=0,**kwargs):
'''
takes:
address: Gpib address, int [1]
current_axis: number of current axis, int [1]
always_wait_for_stop: wait for stage to stop before
returning control to calling program, boolean [True]
**kwargs: passed to GpibInstrument initializer
'''
GpibInstrument.__init__(self,address,**kwargs)
self.current_axis = current_axis
self.always_wait_for_stop = always_wait_for_stop
self.delay=delay
def write(self, msg, *args, **kwargs):
'''
Write a msg to the instrument.
'''
if self.echo:
print msg
return GpibInstrument.write(self,msg, *args, **kwargs)
def __init__(self, address=1, current_axis=1, always_wait_for_stop=True, delay=0, **kwargs):
"""
Initializer
Parameters
-------------
address : int
Gpib address
current_axis : int
number of current axis
always_wait_for_stop : Boolean
wait for stage to stop before
returning control to calling program
\*\*kwargs :
passed to GpibInstrument initializer
"""
GpibInstrument.__init__(self, address, **kwargs)
self.current_axis = current_axis
self.always_wait_for_stop = always_wait_for_stop
self.delay = delay
def __init__(self, address=1, current_axis=1,\
always_wait_for_stop=True,delay=0,**kwargs):
'''
Initializer
Parameters
-------------
address : int
Gpib address
current_axis : int
number of current axis
always_wait_for_stop : Boolean
wait for stage to stop before
returning control to calling program
\*\*kwargs :
passed to GpibInstrument initializer
'''
GpibInstrument.__init__(self, address, **kwargs)
self.current_axis = current_axis
self.always_wait_for_stop = always_wait_for_stop
self.delay = delay
def __init__(self, address=16,**kwargs):
GpibInstrument.__init__(self,'GPIB::'+str(address),**kwargs)
self.write('FORM4;')
def __init__(self, address=16, channel=1,**kwargs):
GpibInstrument.__init__(self,'GPIB::'+str(address),**kwargs)
self.channel=channel
self.write('calc:par:sel CH1_S11_1')
def __init__(self, address=20,**kwargs): GpibInstrument.__init__(self,address, **kwargs) self.add_channel(1)
def __init__(self, address=20, active_channel = 1, continuous=True,\ **kwargs): GpibInstrument.__init__(self,address, **kwargs) self.active_channel = active_channel self.continuous = continuous self.traces = []
def __init__(self, address=20, active_channel = 1, continuous=True,\
**kwargs):
GpibInstrument.__init__(self, address, **kwargs)
self.active_channel = active_channel
self.continuous = continuous
self.traces = []
def __init__(self, address=20, **kwargs):
GpibInstrument.__init__(self, address, **kwargs)
self.add_channel(1)
def __init__(self, address=16, **kwargs):
GpibInstrument.__init__(self, 'GPIB::' + str(address), **kwargs)
self.write('FORM4;')
def __init__(self, address=16, channel=1,timeout = 3, **kwargs):
GpibInstrument.__init__(self,'GPIB::'+str(address),timeout=timeout,**kwargs)
self.channel=channel
self.port = 1
