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how to implement time synchronization among many sora pc with windows os?

    Question

  • we are using 4 or more sora pc platforms to design tdma-like mac protocol. each sora is assigned a time slot of 4 ms (or 1 ms, 2ms, 8ms). how to synchronize timing with accuracy of 1-10 us among these 4 soras?

    external gps (1pps) is allowed, but how to correct windows clock? windows multimedia api is not accuracy enough, for the timing accuracy is 1 ms at the best. 

    Tuesday, July 30, 2013 1:00 PM