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nbytes *= count
# Read enough bytes starting at specified address to match the
# requested number of the specified data type.
data_bytes = np.array([self.persistent_read(address + i)
for i in xrange(nbytes)], dtype=np.uint8)
# Cast byte array as array of specified data type.
result = data_bytes.view(dtype)
# If no count was specified, we return a scalar value rather than the
# resultant array.
if count is None:
return result[0]
return result"
966,"def persistent_write_multibyte(self, address, data, refresh_config=False):
'''
Write multiple bytes to an address in persistent memory.
Parameters
----------
address : int
Address in persistent memory (e.g., EEPROM).
data : numpy.array
Data to write.
refresh_config : bool, optional
Is ``True``, :meth:`load_config()` is called afterward to refresh
the configuration settings.
'''
for i, byte in enumerate(data.view(np.uint8)):
self.persistent_write(address + i, int(byte))
if refresh_config:
self.load_config(False)"
967,"def measure_impedance(self, sampling_window_ms, n_sampling_windows,
delay_between_windows_ms, interleave_samples, rms,
state):
'''
Measure voltage across load of each of the following control board
feedback circuits:
- Reference _(i.e., attenuated high-voltage amplifier output)_.
- Load _(i.e., voltage across DMF device)_.
The measured voltage _(i.e., ``V2``)_ can be used to compute the
impedance of the measured load, the input voltage _(i.e., ``V1``)_,
etc.
Parameters
----------
sampling_window_ms : float
Length of sampling window (in milleseconds) for each
RMS/peak-to-peak voltage measurement.
n_sampling_windows : int
Number of RMS/peak-to-peak voltage measurements to take.
delay_between_windows_ms : float
Delay (in milleseconds) between RMS/peak-to-peak voltage
measurements.
interleave_samples : bool
If ``True``, interleave RMS/peak-to-peak measurements for analog
channels.
For example, ``[<i_0>, <j_0>, <i_1>, <j_1>, ..., <i_n>, <j_n>]``
where ``i`` and ``j`` correspond to two different analog channels.
If ``False``, all measurements for each analog channel are taken
together. For example, ``[<i_0>, ..., <i_n>, <j_0>, ..., <j_n>]``
where ``i`` and ``j`` correspond to two different analog channels.
rms : bool
If ``True``, a RMS voltage measurement is collected for each
sampling window.
Otherwise, peak-to-peak measurements are collected.
state : list
State of device channels. Length should be equal to the number of
device channels.
Returns
-------
:class:`FeedbackResults`
'''
state_ = uint8_tVector()
for i in range(0, len(state)):
state_.append(int(state[i]))
buffer = np.array(Base.measure_impedance(self,
sampling_window_ms,
n_sampling_windows,
delay_between_windows_ms,
interleave_samples,
rms,
state_))
return self.measure_impedance_buffer_to_feedback_result(buffer)"
968,"def sweep_channels(self,
sampling_window_ms,
n_sampling_windows_per_channel,
delay_between_windows_ms,
interleave_samples,
rms,
channel_mask):
'''