def set_bias_value(self, val, channel=0):
"""
Sets bias value of channel <channel> to value <val>.
Parameters
----------
val: float
Bias value.
channel: int
Number of channel of interest. Default is 0 (ao0).
Returns
-------
None
"""
self._bias_values[channel] = val
nidaq.write(devchan='{:s}/ao{:d}'.format(self._dev, channel), data=val)
def write(self,
data,
channel,
freq=1e4,
minv=-10.0,
maxv=10.0,
timeout=10.0):
"""
Writes analog output values <data> to output channel <channel> with sample frequency <freq>.
Parameters
----------
data: int/float/numpy.array
Voltage data to write in Volts.
channel: int
Number of output channel of interest.
freq: float
Sample frequency in Hertz.
minv: float
Minimum voltage in Volts.
maxv: float
Maximum voltage in Volts.
timeout: float
Time to wait for completion in seconds.
Returns
-------
written: int
Number of values written
"""
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxcreatetask/
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxcreateaovoltagechan/
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxwriteanalogscalarf64/
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxcfgsampclktiming/
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxwriteanalogf64/
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxstarttask/
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxstoptask/
# Corresponding command: http://zone.ni.com/reference/en-XX/help/370471AM-01/daqmxcfunc/daqmxcleartask/
return nidaq.write(devchan='{:s}/ao{:d}'.format(self._dev, channel),
data=data,
freq=freq,
minv=minv,
maxv=maxv,
timeout=timeout)
def write(self,devchan, data, freq=10000.0, minv=-10.0, maxv=10.0,timeout=10.0):
return nidaq.write(devchan, data, freq=freq, minv=minv, maxv=maxv,timeout=timeout)
def do_set_output(self, val, channel):
devchan = '%s/%s' % (self._id, channel)
return nidaq.write(devchan, val)