I need to be able to synchronize the clocks on several linux PC104s in our system. For those that are on the pure Linux subnet I was planning on using chrony but many of the nodes are connected via RtNet to a single master gateway and I was wondering if anyone has thought of or tried to sync the Linux times on various nodes of an RtNet network using the packet timestamp info. We've got to do some high accuracy time stamping on each node I already have a phase-lock-loop algorithm to sync between RTAI time and Linux time by compensating for clock errors and drifts when I convert between tsc clock counts and wall time. Thus if I could use RtNet to compare and compensate the tsc clocks this might yield very consistent times from each node. Just wondering if anyone has walked this path before or has any ideas.
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