It's not considered possible to synchronize to better than ±20 mS with
NTP, hence the introduction of PTP [Precision Time Protocol or IEEE-1588] .
To get microsecond accuracy with PTP one needs an Ethernet MAC with
built in hardware support and a PTP master. I don't believe Technologic
have any boards that include this as yet. I hope that they are
considering adding it!
Ian T.
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