[time-nuts] GPS-DC MK III serial IO question ...

John Pettitt jpp at cloudview.com
Tue Mar 7 01:41:50 UTC 2006


hopefully somebody on this list has a TrueTime GPS-DC ...

I've just set up my new (to me) GPS-DC MK III.  It seems to be working
(gets a fix,  show itself as locked and the stats look fine).  The 1PPS
output works and is currently  syncing one of my NTP boxes.   However I
can't get the RS232 output to work.  What I'm seeing is anything I type
on the RS232 is ignored except <CR> which get a "?" is response.   The
book says F08<CR> should cause it to output time once a second but it
doesn't.

The data rate/parity etc is right so I'm stumped.  Is there some magic
to getting this thing to talk on the serial port?

John




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