PQSC ===== The Zurich Instruments PQSC Programmable Quantum System Controller brings together the instrumentation required for quantum computers with up to 100 qubits. Its ZSync low-latency, real-time communication links are designed specifically for quantum computing: the PQSC overcomes the practical limitations of traditional control methods, making automated and rapid qubit calibration routines a reality. Programming access to the powerful Xilinx UltraScale+ FPGA is the basis for developing new and optimized processing solutions for rapid tune-up and error correction adapted to the specific algorithm and computer architecture in use. Please refer to the `user manual `_ for an in-depth explanation of all features. Like every device the device specific settings and data is organized in a path like structure called the node tree. zhinst-toolkit provides a pythonic way of interacting with this node tree. For more information about all functionalities and usage of the node tree in toolkit refer to the dedicated :doc:`section <../first_steps/nodetree>`. zhinst-toolkit offers the following helper functions for the PQSC: .. list-table:: :header-rows: 1 * - Helper Function - Info * - :func:`pqsc.arm()` - Prepare PQSC for triggering the instruments. * - :func:`pqsc.run()` - Start sending out triggers. * - :func:`pqsc.arm_and_run()` - Arm the PQSC and start sending out triggers. * - :func:`pqsc.stop()` - Stop the trigger generation. * - :func:`pqsc.wait_done()` - Wait until trigger generation and feedback processing is done. * - :func:`pqsc.check_ref_clock()` - Check if reference clock is locked successfully. * - :func:`pqsc.check_zsync_connection()` - Check if the ZSync connection on the given port is successful.