From: Nate Kando on
I am trying to place a clock within an atomic subsystem;
I am doing so that I may set initial conditions in a state machine,
so, really, just setting start conditions at time = 0.00 is necessary.

The problem is that repeating series and clocks do not allow for choosing a sampling time.

The actual error is:
.... "invalid sample time. Only constant (inf), inherited (-1), or periodic ([0.01 0]) sample times are allowed in the periodic atomic subsystem"

Also, as a a small digression:
why does the error message suggest a decreasing periodic sampling time?