DShade

Thank You Sincerely! All is now working as expected.
My confusion was this...
I first EXported from patterns to .csv to try and understand what the expected format of .csv should be on IMport. Apparently... bad thinking. The EXported .csv file is in the form TIME,DATA.  The IMported .csv file should instead be in the form DATA,DATA,DATA (with the frequency control within Patterns defining the time steps).
Outstanding tools! Thank you @attila and AD2 for making my"work from home" lab nearly as capable as my bench at work (at about 1/100th the cost). The AD2 tools are allowing me to focus on the device under study (and not spend so much time trying to get the instrumentation right).   CHEERS!  Doug
p.s. I recently completed a PLL study, using AD2's: logic analyzer (PLL Controller's State Machine), oscilloscope, spectrum analyzer... so yea, GREAT TOOL!

Hi @brha0386
var rg = String(FileRead("~/Desktop/default.csv")).trim().split('\n') Patterns.Channels.DIO0.custom = rg