Add get_length() function to the Experiment class which returns the estimated time the experiment will take.
This commit is contained in:
Joachim Beerwerth
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c3c4839d3c
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3dc98f0970
@ -90,6 +90,15 @@ class Experiment:
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assert len(rf_gates) == len(rf_sources), "rf_sources and rf_gates must have equal number of entries"
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self.rf_sources = rf_sources
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self.rf_gates = rf_gates
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#for tracking the experiment length:
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#because loops are possible we need to track the length for each loop level
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self.total_time=[]
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self.total_time.append(0.0)
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#and we need to know the number of iterations of the loops to multiply the state.
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self.loop_iterations=[]
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self.loop_iterations.append(1)
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# Commands -------------------------------------------------------------------------------------
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@ -118,6 +127,8 @@ class Experiment:
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the_value=1<<channel
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self.state_list.append(StateSimple(length, \
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'<ttlout value="0x%06x"/>' % the_value))
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self.total_time[-1] += length
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## Same as ttl_pulse, but no *channel* keyword
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def ttls(self, length = None, value = None):
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@ -132,8 +143,10 @@ class Experiment:
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s_content = '<ttlout value="0x%06x"/>' % the_value
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if length is not None:
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self.state_list.append(StateSimple(length, s_content))
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self.total_time[-1] += length
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else:
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self.state_list.append(s_content)
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def rf_pulse(self, length=None, phase=0, source=0):
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"""
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@ -157,6 +170,7 @@ class Experiment:
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This must be closed with state_end()
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"""
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self.state_list.append('<state time="%s">\n' % repr(time))
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self.total_time[-1] += time
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## End of *state_start*
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def state_end(self):
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@ -184,6 +198,8 @@ class Experiment:
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self.state_list.append(StateSimple(time,s_content))
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else:
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self.state_list.append(StateSimple(time))
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self.total_time[-1] += time
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## Records data with given number of samples, sampling-frequency frequency and sensitivity
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# @param samples Number of samples to record
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@ -247,6 +263,7 @@ class Experiment:
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if timelength is None:
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timelength = samples / float(frequency)#*1.01
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self.state_list.append(StateSimple(timelength, s_content))
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self.total_time[-1] += timelength
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## Create a loop on the pulse programmer. Loop contents can not change inside the loop.
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# @params iterations Number of loop iterations
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@ -264,6 +281,9 @@ class Experiment:
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# (These two lines could probably be guarded by a mutex)
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self.list_stack.append(self.state_list)
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self.state_list = l
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self.total_time.append(0.0)
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self.loop_iterations.append(iterations)
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## End loop state
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def loop_end(self):
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@ -272,6 +292,10 @@ class Experiment:
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"""
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# (This line could probably be guarded by a mutex)
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self.state_list = self.list_stack.pop(-1)
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looptime=self.total_time.pop(-1)
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loopiterations=self.loop_iterations.pop(-1)
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self.total_time[-1] += looptime*loopiterations
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## Set the frequency and phase of the frequency source.
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## This state needs 2us.
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@ -291,6 +315,8 @@ class Experiment:
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if ttls != 0:
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s_content += '<ttlout value="0x%06x"/>' % ttls
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self.state_list.append(StateSimple(2e-6, s_content))
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self.total_time[-1] += 2e-6
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## Creates a, possibly shaped, pulsed gradient.
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# @param dac_value DAC value to set
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@ -331,10 +357,13 @@ class Experiment:
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if form == 'rec': # shape==None --> rectangular gradients
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s_content = '<ttlout value="%s"/><analogout id="1" dac_value="%i"/>' % (trigger, dac_value)
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self.state_list.append(StateSimple(length, s_content))
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self.total_time[-1] += length
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if not is_seq:
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s_content = '<analogout id="1" dac_value="0"/>'
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self.state_list.append(StateSimple(42*9e-8, s_content))
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self.total_time[-1] += 42*9e-8
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elif form == 'sin2':
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# sin**2 shape
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@ -342,9 +371,12 @@ class Experiment:
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dac = int (dac_value*numpy.sin(numpy.pi/length*t)**2)
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s_content = '<ttlout value="%s"/><analogout id="1" dac_value="%i"/>' % (trigger, dac)
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self.state_list.append(StateSimple(resolution, s_content))
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# set it back to zero
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s_content = '<ttlout value="%s"/><analogout id="1" dac_value="0"/>' % (trigger)
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self.state_list.append(StateSimple(resolution, s_content))
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self.total_time[-1] += resolution*(len(t_steps)+1)
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elif form == 'sin':
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# sin shape
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@ -355,6 +387,8 @@ class Experiment:
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# set it back to zero
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s_content = '<ttlout value="%s"/><analogout id="1" dac_value="0"/>' % (trigger)
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self.state_list.append(StateSimple(resolution, s_content))
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self.total_time[-1] += resolution*(len(t_steps)+1)
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else: # don't know what to do
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raise SyntaxError , "form is unknown: %s"%form
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@ -385,10 +419,15 @@ class Experiment:
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s_content = '<analogout id="%d" dac_value="%i"/><ttlout value="0x%06x"/>' \
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% (dac_id, dac_value, ttls)
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self.state_list.append(StateSimple(length, s_content))
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self.total_time[-1] += length
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if not is_seq:
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s_content = '<analogout id="%d" dac_value="0"/><ttlout value="0x%06x"/>' \
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% (dac_id, ttls)
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self.state_list.append(StateSimple(42*9e-8, s_content))
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self.total_time[-1] += 42*9e-8
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## sets the phase of the frequency source.
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## This state needs 0.5us, though the phase switching time is dependent on the frequency source
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@ -408,6 +447,8 @@ class Experiment:
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if ttls!=0:
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s_content += '<ttlout value="%d"/>' % ttls
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self.state_list.append(StateSimple(0.5e-6, s_content))
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self.total_time[-1] += 0.5e-6
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## sets a description which is carried via the back end result
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## file to the result script in the front end. In the result script
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@ -434,6 +475,8 @@ class Experiment:
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"""
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self.state_list.append(StateSimple(1e-6, '<ttlout value="0xf000"/>'))
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self.state_list.append(StateSimple(1e-6, '<ttlout value="0x8000"/>'))
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self.total_time[-1] += 2e-6
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# / Commands -----------------------------------------------------------------------------------
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@ -508,7 +551,16 @@ class Experiment:
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:returns: XML quit-job
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"""
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return '<?xml version="1.0" encoding="ISO-8859-1"?>\n<quit/>'
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def get_length(self):
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timelength = 0.0
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#calculate the correct timelength also for unclosed loops, if there is no unclosed loop
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#the timelength of this experiment is self.total_time[-1].
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for i in range(len(self.total_time)):
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timelength += self.total_time[i]*self.loop_iterations[i]
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return timelength
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class Quit(Experiment):
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def write_xml_string(self):
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@ -529,8 +581,7 @@ def self_test():
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e.ttl_pulse(1e-6/3, None, 7) # val = 7
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if True:
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e.loop_start(30)
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e.set_pfg(dac_value=1024, is_seq = True)
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e.set_pfg_wt(dac_value=2048)
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e.set_pfg(dac_value=1024, length=5e-6, is_seq = True, shape=('rec', 42*9e-8))
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e.loop_start(400)
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e.set_phase(270, ttls = 32)
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e.loop_end()
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@ -550,6 +601,8 @@ def self_test():
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raise AssertionError("An exception should happen")
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e.set_pts_local()
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print e.write_xml_string()
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print e.get_timelength()
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if __name__ == '__main__':
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self_test()
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