A pretty darn quick interpolating arbitrary waveform generator.
Requirements:
- The legacy branch of Migen (https://github.com/m-labs/migen/tree/legacy)
- Xilinx ISE (WebPack is sufficient)
Installation of Migen differs depending on what packaging system is used (or if one is used at all). Migen can be installed using pip:
$ pip install -e git://github.com/m-labs/migen.git@legacy#egg=migen
Then to build the gateware:
$ python make.py
The HTML documentation can be built with:
$ pip install -r doc/requirements.txt $ make -C doc html
Once the device has been programmed with the gateware and powered up, it can be used to generate waveforms.
See the :class:`host.pdq2.Pdq2` class for how to access a stack of PDQ2 board programmatically, how to submit commands, and how prepare, serialize, and program segments, frames, and channels.
An example how :class:`host.pdq2.Pdq2` can be used is the command line test interface to the PDQ2 in :func:`host.cli.main`.
Individual commands are described in the manual in :ref:`usb-protocol`.
The wavesynth format is described with examples in :ref:`wavesynth-format`.
To communicate with the device, run the testbenches and generate the data, the following additional packages are required:
* ``pyserial`` * ``scipy``
$ python3 -m testbench.escape $ python3 -m testbench.cli
Arbitrary waveform generator for quantum information processing with trapped ions; R. Bowler, U. Warring, J. W. Britton, B. C. Sawyer and J. Amini; Rev. Sci. Instrum. 84, 033108 (2013); http://dx.doi.org/10.1063/1.4795552 http://tf.boulder.nist.gov/general/pdf/2668.pdf
Coherent Diabatic Ion Transport and Separation in a Multizone Trap Array; R. Bowler, J. Gaebler, Y. Lin, T. R. Tan, D. Hanneke, J. D. Jost, J. P. Home, D. Leibfried, and D. J. Wineland; Phys. Rev. Lett. 109, 080502; http://dx.doi.org/10.1103/PhysRevLett.109.080502 http://tf.boulder.nist.gov/general/pdf/2624.pdf