  The next generation of space systems will have to achieve more and more
complex missions. In order to master the development cost and duration of such
systems, an alternative to a manual design is to automatically synthesize the
main parameters of the system. In this paper, we present an approach for the
specific case of the scheduling of the flight control of a space launcher. The
approach requires two successive steps: (1) the formalization of the problem to
be solved in a parametric formal model and (2) the synthesis of the model
parameters with a tool. We first describe the problem of the scheduling of a
launcher flight control, then we show how this problem can be formalized with
parametric stopwatch automata; we then present the results computed by the
parametric timed model checker IMITATOR. We enhance our model by taking into
consideration the time for switching context, and we compare the results to
those obtained by other tools classically used in scheduling.
