Interesting points, Andrew!
Andrew Beckett wrote on Aug 5th, 2017, 1:57am:Although there should be a gmin resistor inserted by the simulator from there to ground anyway (I believe).
Would that gmin be inserted, even if it wasn't needed at time=0? Suppose the switch is closed for the dc/time=0 solution, providing a dc path, but later opens up. Would Spectre know to insert a gmin?
Quote:The snippet of the log file you sent doesn't sound severe enough to cause PSS to fail - and even if it did, there would be something else which might give more detail. Can you please post the whole spectre.out file?
Interesting point! The original post included only warnings:
Quote:WARNING (SPECTRE-16266): Error requirements were not satisfied because of convergence difficulties.