The issue I am having is that I need to have the GPS devices connect
to a Serial to Ethernet adapter and communicate with the Linix host
using a virtual serial driver.
The obvious question is: what RS232->Ethernet adapter are you using?
Has anyone used this solution for PPS NTP timing with a Ethernet to
Serial converter?
The obvious statement is: Ethernet latency is both non-trivial and not
constant. A PPS signal may not be of much use with such a setup. Your
RS232->Ethernet converter likely adds some non-0 latency itself,
potentially more than the actual Ethernet transport. I would think you'd
need a fairly solid analysis of jitter and delay between the RS232 end
and the virtual serial port end before the PPS signal would be useful again.
Cheers,
--
Kevin Bralten
[email protected]
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