tpoliaw/panda_trials

Assorted testing of panda related things

PandA trials

Required setup

Panda IOC

Python environment

Needs

• ophyd-epics-devices
• From https://github.com/bluesky/ophyd-epics-devices (panda-ideas-testing branch)
• ophyd
• p4p
• ipython
• Shouldn't be tied to a specific repl but things didn't work well from others.
• bluesky
• Not really needed but it sets up some ipython stuff that may or may not be useful.

Starting demo

$ ipython -i panda_init.py
>>> import tables
>>> tables.display("helloWorld")

Assumes the panda IOC is running with a PV of TS-PANDA.

tables.py

Currently the main module of functions used for testing the panda. Individual rows of a sequencer table can be built using the frame method that creates a Frame object using default values for all non-specified options.

NB dataclasses/pydantic models are not as usable as namedtuples as being iterable means tuples can be inverted to converted from row-wise to column-wise form more easily.

A list (or any other iterable) of frames can be passed to the build_table function to create a SeqTable that can be passed to the seq1.table panda block.

display function

Demo function for displaying scrolling text on the spinning light demo. This relies on the double buffered sequence table in new versions of the panda firmware to continuously update the table to display scrolling text.