"A C" <agcarver+...@acarver.net> wrote in message
news:4f4b221a.6020...@acarver.net...
[]
Sun sparc (Zilog serial ports), not Intel/AMD. FreeBSD has different
serial drivers for different architectures. The hardware I have is not
faulty. Under Solaris it all works (but I don't have a copy of Solaris
7 around to support sun4c architecture). NetBSD supports sun4c and can
see DCD just fine but it's unable to share half of the port (TX/RX) with
one process while sharing the other half (DCD, RTS, CTS) with another
process (this is what makes its serial port support broken). FreeBSD's
sparc serial driver is unable to read the control lines so it's very
broken.
So non-standard hardware rather than faulty hardware. BTW: I thought that
one of the benefits of open-course operating systems was that you could
fix such problems yourself! A pity no-one has fixed the driver. I had
also thought that Solaris was now free to download by anyone, and use for
non-production use, but perhaps I'm wrong?
http://www.oracle.com/technetwork/server-storage/solaris11/downloads/index.html
I don't know about earlier versions....
The sharing of a serial port is critical for ntpd to do PPS on the NMEA
refclock. On Solaris 7 this would probably work fine. On NetBSD, ATOM
or NMEA without PPS work but NMEA with PPS does not. On FreeBSD, forget
PPS entirely. This is why my GPS data is coming in on serial port A and
my PPS signal is coming in on serial port B. I have to split them up to
see both on NetBSD which means I need two refclocks, one PPS and one
NMEA (or SHM for when I have gpsd manage the GPS in SiRF mode).
The GPS/PPS devices I have either require no management (the Sure board),
or need just a one-time setup under Windows for the Garmin GPS 18/x LVC.
There's no need for any routine interaction. My own tests with serial
GPS/NMEA data alone support the view that it's no better than just using
Internet servers, so Internet + PPS may be your best solution, and not
worry too much if the Internet servers never ramp up to 1024s poll. You
didn't say whether one of the Internet servers was marked "prefer".
Cheers,
David
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