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Using final conditions as initial conditions with (non) periodic voltage sources

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I want to use a final conditions file from one simulation/test as a initial condition/node set for another simulation/test

My test bench has some periodic signals (square waves) and some non-periodic signals (power supply is ramped in the TB)

Regarding periodic signals, what would happen if the first simulation ended on a certain phase, and the second simulation starts at a different phase, but i try to use the final conditions from the first as a initial condition for the second? It seems that would be a problem. Is there any solution to this (besides trying to make the first sim end on the correct phase)? Obviously, with non-periodic signals, this problem is even worse


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