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nifgen_trigger.py
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nifgen_trigger.py
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import argparse
import nifgen
import sys
import time
def example(resource_name1, resource_name2, options, waveform, gen_time):
with nifgen.Session(resource_name=resource_name1, options=options) as session1, nifgen.Session(resource_name=resource_name2, options=options) as session2:
session_list = [session1, session2]
for session in session_list:
session.output_mode = nifgen.OutputMode.FUNC
session.configure_standard_waveform(waveform=nifgen.Waveform[waveform], amplitude=1.0, frequency=1000, dc_offset=0.0, start_phase=0.0)
session1.start_trigger_type = nifgen.StartTriggerType.SOFTWARE_EDGE
session2.start_trigger_type = nifgen.StartTriggerType.DIGITAL_EDGE
session2.digital_edge_start_trigger_edge = nifgen.StartTriggerDigitalEdgeEdge.RISING
session2.digital_edge_start_trigger_source = '/' + resource_name1 + '/0/StartTrigger'
with session2.initiate():
with session1.initiate():
session1.send_software_edge_trigger(nifgen.Trigger.START)
time.sleep(gen_time)
def _main(argsv):
supported_waveforms = list(nifgen.Waveform.__members__.keys())[:-1] # no support for user-defined waveforms in example
parser = argparse.ArgumentParser(description='Triggers one device on the start trigger of another device.', formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument('-n1', '--resource-name1', default='PXI1Slot2', help='Resource name of an NI function generator.')
parser.add_argument('-n2', '--resource-name2', default='PXI1Slot3', help='Resource name of an NI function generator.')
parser.add_argument('-w', '--waveform', default=supported_waveforms[0], choices=supported_waveforms, type=str.upper, help='Standard waveform')
parser.add_argument('-t', '--time', default=5.0, type=float, help='Generation time (s)')
parser.add_argument('-op', '--option-string', default='', type=str, help='Option string')
args = parser.parse_args(argsv)
example(args.resource_name1, args.resource_name2, args.option_string, args.waveform, args.time)
def main():
_main(sys.argv[1:])
def test_example():
options = {'simulate': True, 'driver_setup': {'Model': '5433 (2CH)', 'BoardType': 'PXIe', }, }
example('PXI1Slot2', 'PXI1Slot3', options, 'SINE', 5.0)
def test_main():
cmd_line = ['--option-string', 'Simulate=1, DriverSetup=Model:5433 (2CH);BoardType:PXIe', ]
_main(cmd_line)
if __name__ == '__main__':
main()