Warning: This experimental software is provided "as-is". It is untested and unmaintained, and is likely to contain bugs.
The controller gives network access to the PXI6733 card.
The mediator provides a wavesynth-like interface (similar to the PDQ), handles loading of waveforms by connecting to the controller, and triggers samples using a RTIO TTL clock generator. The hardware must be set up in a way that each TTL pulse triggers the output of one DAC sample.
To use the controller you need first to install the NI-DAQmx driver from http://www.ni.com/downloads/ni-drivers/f/.
Then you also need to install PyDAQmx python module:
$ git clone https://github.com/clade/PyDAQmx $ cd PyDAQmx $ C:\Python34\Tools\Scripts\2to3.py -w . $ python3.5 setup.py build $ python3.5 setup.py install
Then, you can run the PXI6733 controller:
$ pxi6733_controller -d Dev1
Then, send a load_sample_values command to it via the artiq_rpctool utility:
$ artiq_rpctool ::1 3256 list-targets Target(s): pxi6733 $ artiq_rpctool ::1 3256 call load_sample_values 'np.array([1.0, 2.0, 3.0, 4.0], dtype=float)'
This loads 4 voltage values as a numpy float array: 1.0 V, 2.0 V, 3.0 V, 4.0 V
Then the device is set up to output those samples at each rising edge of the clock.
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