xref: /freebsd/contrib/ntp/html/drivers/driver32.html (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2
3<html>
4
5    <head>
6        <meta http-equiv="Content-Type" content="text/html; charset=iso8859-1">
7        <title>Chrono-log K-series WWVB receiver</title>
8        <link href="../scripts/style.css" type="text/css" rel="stylesheet">
9    </head>
10
11    <body>
12        <h3>Chrono-log K-series WWVB receiver</h3>
13        <hr>
14        <h4>Synopsis</h4>
15        <p>Address: 127.127.32.<i>u</i><br>
16            Reference ID: <tt>CHRONOLOG</tt><br>
17            Driver ID: <tt>CHRONOLOG</tt><br>
18            Serial Port: <tt>/dev/chronolog<i>u</i></tt>; 2400 bps, 8-bits, no parity<br>
19            <br>
20            Features: <tt>(none)</tt></p>
21        <h4>Description</h4>
22        <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>
23        <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>
24        <pre>
25Timecode format: Y yy/mm/ddCLZhh:mm:ssCL
26Y - year/month/date line indicator
27yy/mm/dd -- two-digit year/month/day
28C - \r (carriage return)
29L - \n (newline)
30Z - timestamp indicator
31hh:mm:ss - local time
32</pre>
33        <!-- hhmts start -->Last modified: Sun Feb 14 11:57:27 EST 1999 <!-- hhmts end -->
34        <hr>
35        <script type="text/javascript" language="javascript" src="../scripts/footer.txt"></script>
36    </body>
37
38</html>