What’s New in the SHFQA User Manual

Feature: Added option to load factory defaults in Device Tab.

Feature: Added switchable signal path, RF (0.5 - 8.5 GHz) path and LF (DC - 800 MHz) path. Added nodes for switching between RF and LF paths of the QA channel input and output, respectively, as
/DEV…​/QACHANNELS/n/INPUT/RFLFPATH (default is 1, RF path) and /DEV…​/QACHANNELS/n/OUTPUT/RFLFPATH (default is 1, RF path). Furthermore, the node /DEV…​/QACHANNELS/n/OUTPUT/RFLFINTERLOCK (default is 0, output RF/LF path is configured independently) allows to enable an interlock , where the RF/LF path setting of the output is always configured according to the one of the input.

Bugfix: Fixed a bug where an over-range condition for the input and output channels was reported during ADC calibration (during startup).

Bugfix: Fixed a bug where the spectroscopy delay node /DEV…​/QACHANNELS/n/SPECTROSCOPY/DELAY didn’t accept 0 ns after it was set to 4 ns.

Feature: Added an optional synchronization check which ensures that all participants have reported their readiness before a program or internal triggers are executed.

Bugfix: Fixed a bug in the sequencer, where playZero commands got skipped when multiple successive playZero commands were used with large sample counts (e.g. 131056).

Node: Added node
/DEV…​/QACHANNELS/n/INPUT/ADCOVERRANGECOUNT, allowing to separately monitor ADC overrange conditions.

Bugfix: Fixed a bug causing overrange conditions during the ADC calibration at startup.

Feature: Added power-spectral-density (PSD) measurement capability to the spectroscopy mode. The PSD measurement gets controlled via the node tree branch /DEV…​/QACHANNELS/n/SPECTROSCOPY/PSD.

API: Added a zhinst-toolkit example for PSD measurement in GitHub.

API: Added a parameter "wait_after_integration" in zhinst-utils ShfSweeper class, see Table 1 in the tutorial Continuous Resonator Spectroscopy.

API: Changed the default integration delay in zhinst-utils ShfSweeper class from 0 ns to 224 ns, see Table 1 in the tutorial Continuous Resonator Spectroscopy.

Feature: Added the internal trigger unit, which allows to generate a number of triggers with configurable hold-off time. The configuration is done via the nodes under /DEV…​/SYSTEM/INTERNALTRIGGER/ branch or the DIO tab in the GUI. The "Internal Trigger" can be selected as trigger source of the Scope, QA Readout Pulse Generator, and for Spectroscopy mode.

Bugfix: Fixed a bug causing broken DIO interface when switching between LVCMOS and LVDS outputs.

LabOne GUI: Fixed a bug, where the error "The sigin ADC reported unexpected dataconverter errors!" was issued during an over range condition at the QA channel inputs.

LabOne GUI: Added overload status display of the Input signal from the front panel and the Output signal before DAC.

LabOne GUI: Added Waveform Viewer sub-tab to display waveforms of readout and integration weights or spectroscopy envelope.

LabOne GUI: Removed one trigger selection Sequencer n Trigger Out from the Trigger sub-tab of Sequencer n.

Node: Node /DEV…​/QACHANNELS/n/GENERATOR/ELF/DATA accepts raw data as 8-, 16-, and 64-bit integer vectors in addition to 32-bit words.

LabOne GUI: Fixed a bug such that readout waveforms and integration weights can always be uploaded after clearing all memory slots even when there is no change. (patch release)

LabOne GUI: Fixed a bug such that readout waveform and integration weights are parametrically generated based on sampling rate of 2.0 GSa/s instead of 1.8 GSa/s. (patch release)

LabOne GUI: Added CSV envelope waveform upload feature in Pulse Spectroscopy mode.

LabOne GUI: Added new phase parameters for Parametric generation of readout and integration weight waveforms in Readout mode.

LabOne GUI: Added waveform vectors clearing feature in Readout mode.

Node tree: Added new node /DEV…​/QACHANNELS/n/READOUT/INTEGRATION/CLEARWEIGHT to clear all uploaded integration weight vectors.

LabOne GUI and API: Changed result vector of integration unit which was not triggered to "NaN" (Not a Number).

LabOne GUI and API: Fixed a bug such that the instrument can run continuously even result length of all channels are set to the maximum value. (patch release)

LabOne GUI: Added Scope tab.

LabOne GUI and API: Added continuous mode. Scope gets automatically re-enabled after each acquired scope shot. The node /DEV…​/SCOPES/0/SINGLE is used to switch between continuous mode (0, default) and single-shot (1). In addition, if /DEV…​/SCOPES/0/TRIGGER/ENABLE is set to 0 (default), the scope gets automatically re-triggered.

LabOne API: Fixed the issue that samples were always scaled by the number of averages, even when the averaging was switched off.

LabOne GUI: Added User Register.

LabOne GUI: Enabled Generator Sequencer Status display.

SeqC: Added commands resetOscPhase(), setUserReg(), getUserReg() configFreqSweep() and setSweepStep(). to the Sequencer.

SeqC: Enabled triggering of all individual integration units and its combination using the bit mask, for example by combining two constants "QA_INT_0 | QA_INT_1" using the bit-wise OR operator "|".

Node tree: Added new node /DEV…​/QACHANNELS/n/GENERATOR/CLEARWAVE to clear all uploaded readout waveform vectors.

Corrected rounding of uploaded waveform samples. This will make a change of the signal output by 1 least-significant bit, corresponding to a fraction \(2^{-17}\) of the full scale amplitude.