<@U02J59Q3FM0> use a 'pwl' voltage source: Followi...
# xschem
s
@User use a 'pwl' voltage source: Following example is a voltage source on node VCC that changes from 5V to 6V from 0.25ms to 0.251ms
VVCC VCC 0 pwl 0 5 0.25m 5 0.251m 6
n
Thanks @User that did the trick