Method and system to synchronize non-deterministic events

A control system for controlling operation of an electric machine, comprising:

• an inverter operable to rectify current from alternating current phase buses of the electric machine to a direct current bus with switches;
• and
• a controller operable to:
• perform a first operation to produce a first output data representing a motor control current command in a first time period beginning at an initial time, wherein the initial time is one of a plurality of initial times occurring at a first periodic timing interval;
• perform a second operation upon the first output data to produce a second output data in a second time period;
• wherein at least one of the first time period or the second time period is a non-deterministic time period;
• perform a third operation produce a motor control command at one of a plurality of command times occurring at a second periodic timing interval;
• and
• wherein the third operation uses the second output data in response to satisfaction of a timing criterion, the timing criterion based upon comparing the one of the plurality of command times and occurrence of a posting time after the initial time.