def main():
t = PulseWidthModulator()
device = yield selectFromList(getDevices(), 'select device')
channel = yield selectFromList(
getPhysicalChannels(device)[CO], 'select physical channel')
t.createChannel(channel)
frequency = yield getType(float, 'enter frequency: ')
t.setFrequency(frequency)
dutyCycle = yield getType(float, 'enter duty cycle: ')
t.setDutyCycle(dutyCycle)
yield getUserInput('press enter to start: ')
t.generatePulses()
while True:
FREQ, DUTY, QUIT = 'frequency', 'duty cycle', 'quit'
options = (FREQ, DUTY, QUIT)
option = yield selectFromList(options, 'select command')
if option is QUIT:
break
else:
value = yield getType(
float, 'set new %s (%.2f): ' %
(option,
getattr(t, {
FREQ: 'getFrequency',
DUTY: 'getDutyCycle'
}[option])()))
getattr(t, {
FREQ: 'setFrequency',
DUTY: 'setDutyCycle'
}[option])(value)
t.stop()
reactor.stop()
def main():
t = PulseWidthModulator()
device = yield selectFromList(
getDevices(),
'select device'
)
channel = yield selectFromList(
getPhysicalChannels(device)[CO],
'select physical channel'
)
t.createChannel(channel)
frequency = yield getType(
float,
'enter frequency: '
)
t.setFrequency(frequency)
dutyCycle = yield getType(
float,
'enter duty cycle: '
)
t.setDutyCycle(dutyCycle)
yield getUserInput('press enter to start: ')
t.generatePulses()
while True:
FREQ, DUTY, QUIT = 'frequency', 'duty cycle', 'quit'
options = (FREQ,DUTY,QUIT)
option = yield selectFromList(
options,
'select command'
)
if option is QUIT:
break
else:
value = yield getType(
float,
'set new %s (%.2f): ' %
(
option,
getattr(
t,
{
FREQ:'getFrequency',
DUTY:'getDutyCycle'
}[option]
)()
)
)
getattr(
t,
{
FREQ:'setFrequency',
DUTY:'setDutyCycle'
}[option]
)(value)
t.stop()
reactor.stop()
def setChannelParameter(self):
channel, parameter = yield self.selectChannelParameter()
if parameter is AI.PHYSICAL_CHANNEL:
returnValue("not yet supported")
if parameter in (AI.MIN, AI.MAX):
value = yield getType(float, "enter voltage: ")
if parameter is AI.TERMINAL_CONFIG:
trmCfgIndex = yield getListIndex(zip(*AI.TERMINAL_CONFIGS)[2], "select configuration")
value = zip(*self.TERMINAL_CONFIGS)[0][trmCfgIndex]
if parameter is AI.DESCRIPTION:
value = yield getUserInput("enter description: ")
yield self.protocol.sendCommand("set-channel-parameter", channel, parameter, value)
def main():
from sitz import TEST_STEPPER_MOTOR_SERVER
from ab.abbase import getUserInput, sleep
from ab.abclient import getProtocol
from twisted.internet.defer import Deferred
## connect to server
protocol = yield getProtocol(TEST_STEPPER_MOTOR_SERVER)
## get sm configuration
config = yield protocol.sendCommand('get-configuration')
delta = 2000
for id in config.keys():
# create client
client = ChunkedStepperMotorClient(protocol, id)
## register for position updates
def log(prompt, x):
print '%s: %s' % (prompt, x)
listener = partial(log, 'update for client %s' % client.id)
client.addListener(client.POSITION, listener)
## change positions
position = yield client.getPosition()
delta /= 2
yield client.setPosition(position + delta)
position = yield client.getPosition()
# demonstrate canceling capabilities
delta = -10000
d = Deferred()
def onPositionChanged(newPosition):
if d.called:
print 'canceling!'
client.cancel()
client.removeListener(client.POSITION, onPositionChanged)
else:
print 'new pos: %d' % newPosition
client.removeListener(client.POSITION, listener)
client.addListener(client.POSITION, onPositionChanged)
print ''
yield sleep(.5)
print 'starting long journey: press enter to quit'
yield sleep(1.5)
print ''
e = client.setPosition(position + delta)
yield getUserInput('')
d.callback(None)
yield e
print 'shutting down'
reactor.stop()
def setChannelParameter(self):
channel, parameter = yield self.selectChannelParameter()
if parameter is AI.PHYSICAL_CHANNEL:
returnValue('not yet supported')
if parameter in (AI.MIN, AI.MAX):
value = yield getType(float, 'enter voltage: ')
if parameter is AI.TERMINAL_CONFIG:
trmCfgIndex = yield getListIndex(
zip(*AI.TERMINAL_CONFIGS)[2], 'select configuration')
value = zip(*self.TERMINAL_CONFIGS)[0][trmCfgIndex]
if parameter is AI.DESCRIPTION:
value = yield getUserInput('enter description: ')
yield self.protocol.sendCommand('set-channel-parameter', channel,
parameter, value)
