driver34.html revision 182007
1182007Sroberto<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 2132451Sroberto 3132451Sroberto<html> 4132451Sroberto 5182007Sroberto <head> 6182007Sroberto <title>Ultralink Clock</title> 7182007Sroberto <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> 8182007Sroberto <link <link href="scripts/style.css" type="text/css" rel="stylesheet"> </HEAD> <BODY> <H3> Ultralink Clock</H3> 9182007Sroberto <hr> 10182007Sroberto <h4>Synopsis</h4> 11182007Sroberto Address: 127.127.34.<i>u</i><br> 12182007Sroberto Reference ID: <tt>WWVB</tt><br> 13182007Sroberto Driver ID: <tt>ULINK</tt><br> 14182007Sroberto Serial Port: <tt>/dev/wwvb<i>u</i></tt>; 9600 bps, 8-bits, no parity<br> 15182007Sroberto <br> 16182007Sroberto Features: <tt>(none)</tt> 17182007Sroberto <h4>Description</h4> 18182007Sroberto <p>This driver supports the Ultralink Model 325 (replacement for Model 320) RS-232 powered WWVB receiver. PDF specs available on <a href="http://www.ulio.com/">http://www.ulio.com/</a>. This driver also supports the Model 320, 330,331,332 decoders in both polled or continous time code mode.<br> 19182007Sroberto Leap second and quality are supported.</p> 20182007Sroberto <p>Most of this code is originally from refclock_wwvb.c with thanks. Any mistakes are mine. Any improvements are welcome.</p> 21182007Sroberto <hr> 22182007Sroberto <pre> The Model 325 timecode format is: 23132451Sroberto 24182007Sroberto <cr><lf>RQ_1C00LYYYY+DDDUTCS_HH:MM:SSL+5 25182007Sroberto 26182007Sroberto where: 27182007Sroberto 28182007Sroberto R = Signal readability indicator, ranging from R1 to R5 29182007Sroberto Q R1 is unreadable, R5 is best reception 30182007Sroberto _ = Space 31182007Sroberto 1 = prev. received data bit, values: 0, 1 ,M or ? unknown 32182007Sroberto C = Signal reception from (C)olorado or (H)awaii 33182007Sroberto 0 = Hours since last WWVB time and flag code update, values 34182007Sroberto 0 00 to 99 (hopefully always 00) 35182007Sroberto L = HEX A5 if receiver is locked to WWVB, Space if not 36182007Sroberto YYYY = Year from 2000 to 2099 37182007Sroberto + = '+' if current year is a leap year, else ' ' 38182007Sroberto DDD = current day in the year from 1 to 365/366 39182007Sroberto UTC = timezone (always UTC) 40182007Sroberto S = Daylight savings indicator, (S)TD, (D)ST, (O) transition 41182007Sroberto into DST, (I) transition out of DST 42182007Sroberto _ = Space 43182007Sroberto HH = UTC hour 0 to 23 44182007Sroberto : = Time delimiter, ':' if synced, Space if not 45182007Sroberto MM = Minutes of current hour from 0 to 59 46182007Sroberto : = Time delimiter, ':' if synced, Space if not 47182007Sroberto SS = Seconds of current minute from 0 to 59 48182007Sroberto mm = 10's milliseconds of the current second from 00 to 99 49182007Sroberto L = Leap second pending at end of month, (I)nsert, (D)elete 50182007Sroberto or Space 51182007Sroberto +5 = UT1 correction, +/- .1 sec increments 52182007Sroberto </pre> 53182007Sroberto <p>Note that Model 325 reports a very similar output like Model 33X series. The driver for this clock is similar to Model 33X behavior. On a unmodified new ULM325 clock, the polling flag (flag1 =1) needs to be set.</p> 54182007Sroberto <hr> 55182007Sroberto <pre> The Model 320 timecode format is: 56182007Sroberto 57132451Sroberto <cr><lf>SQRYYYYDDD+HH:MM:SS.mmLT<cr> 58132451Sroberto 59132451Sroberto where: 60132451Sroberto 61132451Sroberto S = 'S' -- sync'd in last hour, '0'-'9' - hours x 10 since last update, else '?' 62132451Sroberto Q = Number of correlating time-frames, from 0 to 5 63132451Sroberto R = 'R' -- reception in progress, 'N' -- Noisy reception, ' ' -- standby mode 64132451Sroberto YYYY = year from 1990 to 2089 65132451Sroberto DDD = current day from 1 to 366 66132451Sroberto + = '+' if current year is a leap year, else ' ' 67132451Sroberto HH = UTC hour 0 to 23 68132451Sroberto MM = Minutes of current hour from 0 to 59 69132451Sroberto SS = Seconds of current minute from 0 to 59 70132451Sroberto mm = 10's milliseconds of the current second from 00 to 99 71132451Sroberto L = Leap second pending at end of month -- 'I' = inset, 'D'=delete 72132451Sroberto T = DST <-> STD transition indicators 73132451Sroberto </pre> 74182007Sroberto <p>Note that this driver does not do anything with the T flag.</p> 75182007Sroberto <p>The M320 also has a 'U' command which returns UT1 correction information. It is not used in this driver.</p> 76182007Sroberto <hr> 77182007Sroberto <pre> The Model 33x timecode format is: 78132451Sroberto 79132451Sroberto S9+D 00 YYYY+DDDUTCS HH:MM:SSl+5 80132451Sroberto 81132451Sroberto Where: 82132451Sroberto 83132451Sroberto S = sync indicator S insync N not in sync 84132451Sroberto the sync flag is WWVB decoder sync 85132451Sroberto nothing to do with time being correct 86132451Sroberto 9+ = signal level 0 thru 9+ If over 9 indicated as 9+ 87132451Sroberto D = data bit ( fun to watch but useless ;-) 88132451Sroberto space 89132451Sroberto 00 = hours since last GOOD WWVB frame sync 90132451Sroberto space 91132451Sroberto YYYY = current year 92132451Sroberto + = leap year indicator 93132451Sroberto DDD = day of year 94132451Sroberto UTC = timezone (always UTC) 95132451Sroberto S = daylight savings indicator 96132451Sroberto space 97132451Sroberto HH = hours 98132451Sroberto : = This is the REAL in sync indicator (: = insync) 99132451Sroberto MM = minutes 100132451Sroberto : = : = in sync ? = NOT in sync 101132451Sroberto SS = seconds 102132451Sroberto L = leap second flag 103132451Sroberto +5 = UT1 correction (sign + digit )) 104132451Sroberto </pre> 105182007Sroberto <p>This driver ignores UT1 correction,DST indicator,Leap year and signal level.</p> 106182007Sroberto <hr> 107182007Sroberto <h4>Fudge factors</h4> 108182007Sroberto <p>flag1 polling enable (1=poll 0=no poll)</p> 109182007Sroberto <hr> 110182007Sroberto <address><a href="mailto:frank.migge@oracle.com">mail</a></address> 111182007Sroberto <!-- hhmts start -->Last modified: Mon Mar 8 10:12:08 PST 2004<!-- hhmts end --> 112182007Sroberto <hr> 113182007Sroberto <script type="text/javascript" language="javascript" src="Ultralink Clock_files/footer.txt"></script> 114182007Sroberto </BODY> 115182007Sroberto </head> 116132451Sroberto 117132451Sroberto</html>