def update(self):
if self.value:
self.evap = evaporation()
self.cmds = []
for k in range(self.evap.points):
self.cmds.append('FREQ {:0.2f}kHz; VOLT {:0.2f}dbm'.format(
self.evap.trajectory[k], self.evap.amps[k]))
yield sleep(1.0) # Wait time until the start of evap
yield self.cxn.krbjila_gpib.write('OUTP:STAT ON')
for k in self.cmds:
self.cxn.krbjila_gpib.write(k)
yield sleep(self.evap.dt)
yield self.cxn.krbjila_gpib.write('OUTP:STAT OFF')
def advanceAction(self, cntx, signal):
if self.value:
yield self.cxn.krbjila_gpib.write('OUTP:STAT OFF')
state = signal
self.state = state
if str(state) in self.to_run:
to_run = self.to_run[str(state)]
if 'e' in to_run:
if to_run['e']:
self.evap = evaporation()
self.cmds = []
for k in range(self.evap.points):
self.cmds.append('FREQ {:0.2f}MHz; POW:AMPL {:0.2f}dbm'.format(self.evap.trajectory[k], self.evap.amps[k]))
yield self.cxn.krbjila_gpib.write('OUTP:STAT ON')
for k in self.cmds:
self.cxn.krbjila_gpib.write(k)
yield sleep(self.evap.dt)
# if not, then just setting a single frequency and/or amplitude
elif ('f' in to_run) or ('a' in to_run) or ('d' in to_run):
if 'f' in to_run:
yield self.cxn.krbjila_gpib.write('FREQ ' + str(to_run['f']) + 'MHz')
if 'a' in to_run:
yield self.cxn.krbjila_gpib.write('POW:AMPL ' + str(to_run['a']) + 'dbm')
if 'd' in to_run:
if 's' in to_run:
if to_run['s'] == 2:
yield self.cxn.krbjila_gpib.write('FM1:SOUR EXT2')
else:
yield self.cxn.krbjila_gpib.write('FM1:SOUR EXT1')
else:
yield self.cxn.krbjila_gpib.write('FM1:SOUR EXT1')
yield self.cxn.krbjila_gpib.write('FM1:DEV ' + str(to_run['d']) + 'MHz')
yield self.cxn.krbjila_gpib.write('FM1:STAT ON')
yield self.cxn.krbjila_gpib.write('OUTP:MOD ON')
yield self.cxn.krbjila_gpib.write('OUTP:STAT ON')
else:
yield self.cxn.krbjila_gpib.write('FREQ 6834.7MHz')
yield self.cxn.krbjila_gpib.write('POW:AMPL -19dbm')
def update(self):
# if enabled
if self.value:
if not self.enabled:
self.enabled = 1
# connect to serial, set baud rate, and clear the input
self.trigger = yield serial.Serial('/dev/' + self.port)
self.trigger.baudrate = 9600
self.trigger.reset_input_buffer()
# loop: listen for data from the trigger
# need to check self.value in order to correctly
# terminate the while loop when the device is disabled
while self.value:
# find the number of bytes in the input buffer
bytes_waiting = yield self.trigger.in_waiting
if bytes_waiting:
# read the entire buffer
newstate = yield int(
self.trigger.read(bytes_waiting)[-1])
if self.state != newstate:
# turn off rf output
yield self.cxn.krbjila_gpib.write('OUTP:STAT OFF')
# update the state and clear the serial buffer
self.state = newstate
yield self.trigger.reset_input_buffer()
to_run = {}
# look for parameters for the triggered state
for attr in ['defaults', 'value']:
loc = getattr(self, attr, {})
# this check is very important! otherwise everything will break when
# the defaults are run at the end of the experiment
if type(loc) is not int:
if unicode(self.state) in loc:
params = loc[unicode(self.state)]
if u'frequency' in params:
to_run['f'] = params[u'frequency']
if u'amplitude' in params:
to_run['a'] = params[u'amplitude']
if u'evap' in params:
to_run['e'] = params[u'evap']
# turn on the output
yield self.cxn.krbjila_gpib.write('OUTP:STAT ON')
# now, execute the parameters
# first, check if an evap trajectory is set up
if 'e' in to_run:
if to_run['e']:
self.evap = evaporation()
self.cmds = []
for k in range(self.evap.points):
self.cmds.append(
'FREQ {:0.2f}kHz; VOLT {:0.2f}dbm'.
format(self.evap.trajectory[k],
self.evap.amps[k]))
for k in self.cmds:
self.cxn.krbjila_gpib.write(k)
yield sleep(self.evap.dt)
# if not, then just setting a single frequency and/or amplitude
elif ('f' in to_run) or ('a' in to_run):
if 'f' in to_run:
yield self.cxn.krbjila_gpib.write(
'FREQ ' + str(to_run['f']) + 'MHz')
if 'a' in to_run:
yield self.cxn.krbjila_gpib.write(
'POW:AMPL ' + str(to_run['a']) + 'dbm')
# if no parameters found, just configure as default
else:
yield self.cxn.krbjila_gpib.write(
'FREQ 6834.7MHz')
yield self.cxn.krbjila_gpib.write(
'POW:AMPL -19dbm')
else:
sleep(0.010)
# once the while loop has terminated, close the serial connection
self.trigger.close()
self.enabled = 0
# if not enabled, output the default (gray molasses)
else:
self.state = -1
yield self.cxn.krbjila_gpib.write('OUTP:STAT OFF')
yield self.cxn.krbjila_gpib.write('FREQ 6834.7MHz')
yield self.cxn.krbjila_gpib.write('POW:AMPL -19dbm')
import visa
from time import sleep, time
from evaporate import evaporation
rm = visa.ResourceManager('@py')
def do_evap(evap, device):
print("Total evaporation time is {:0.1f}s".format(evap.totaltime))
cmds = []
for k in range(evap.points):
cmds.append('FREQ {:0.2f}kHz; VOLT {:0.2f}dbm;'.format(evap.trajectory[k],evap.amps[k]))
asg = rm.open_resource(device)
asg.write("FUNC SIN; VOLT:OFFS 0V")
asg.write("OUTP:STAT ON")
for k in cmds:
asg.write(k)
sleep(evap.dt)
asg.write("OUTP:STAT OFF")
asg.close()
device = 'GPIB0::9::INSTR'
do_evap(evaporation(), device)