/contrib/ntp/html/drivers/driver33.html

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  1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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  3. <html>
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  5. 	<head>
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  6. 		<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
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  7. 		<title>Dumb Clock</title>
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  8. 		<link href="scripts/style.css" type="text/css" rel="stylesheet">
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  9. 	</head>
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  11. 	<body>
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  12. 		<h3>Dumb Clock</h3>
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  13. 		<hr>
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  14. 		<h4>Synopsis</h4>
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  15. 		<p>Address: 127.127.33.<i>u</i><br>
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  16. 			Reference ID: <tt>DUMBCLOCK</tt><br>
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  17. 			Driver ID: <tt>DUMBCLOCK</tt><br>
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  18. 			Serial Port: <tt>/dev/dumbclock<i>u</i></tt>; 9600 bps, 8-bits, no parity<br>
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  19. 			Features: <tt>(none)</tt></p>
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  20. 		<h4>Description</h4>
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  21. 		<p>This driver supports a dumb ASCII clock that only emits localtime at a reliable interval. This has no 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.</p>
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  22. 		<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>
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  23. 		<pre>
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  24. Timecode format: hh:mm:ssCL
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  25. hh:mm:ss - local time
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  26. C - \r (carriage return)
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  27. L - \n (newline)
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  28. </pre>
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  29. 		<hr>
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  30. 		<!-- hhmts start -->Last modified: Sun Feb 14 12:07:01 EST 1999 <!-- hhmts end -->
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  31. 		<hr>
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  32. 		<script type="text/javascript" language="javascript" src="scripts/footer.txt"></script>
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  33. 	</body>
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  35. </html>
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