freebsd-skq/contrib/ntp/html/drivers/driver32.html
cy 8560674afd MFV ntp 4.2.8p1 (r258945, r275970, r276091, r276092, r276093, r278284)
Thanks to roberto for providing pointers to wedge this into HEAD.

Approved by:	roberto
2015-03-30 13:30:15 +00:00

41 lines
1.5 KiB
HTML

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Chrono-log K-series WWVB receiver</title>
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<h3>Chrono-log K-series WWVB receiver</h3>
<p>Last update:
<!-- #BeginDate format:En2m -->21-Oct-2010 23:44<!-- #EndDate -->
UTC</p>
<hr>
<h4>Synopsis</h4>
<p>Address: 127.127.32.<i>u</i><br>
Reference ID: <tt>CHRONOLOG</tt><br>
Driver ID: <tt>CHRONOLOG</tt><br>
Serial Port: <tt>/dev/chronolog<i>u</i></tt>; 2400 bps, 8-bits, no parity<br>
<br>
Features: <tt>(none)</tt></p>
<h4>Description</h4>
<p>This driver supports the Chrono-log K-series WWVB receiver. This is a very old receiver without provisions for leap seconds, quality codes, etc. It assumes output in the local time zone, and that the C library mktime()/localtime() routines will correctly convert back and forth between local and UTC. There is a hack in the driver for permitting UTC, but it has not been tested.</p>
<p>Most of this code is originally from refclock_wwvb.c with thanks. It has been so mangled that wwvb is not a recognizable ancestor.</p>
<pre>
Timecode format: Y yy/mm/ddCLZhh:mm:ssCL
Y - year/month/date line indicator
yy/mm/dd -- two-digit year/month/day
C - \r (carriage return)
L - \n (newline)
Z - timestamp indicator
hh:mm:ss - local time
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