19c2daa00SOllivier Robert<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 29c2daa00SOllivier Robert 39c2daa00SOllivier Robert<html> 49c2daa00SOllivier Robert 59c2daa00SOllivier Robert <head> 69c2daa00SOllivier Robert <title>NeoClock4X</title> 7ea906c41SOllivier Robert <link href="scripts/style.css" type="text/css" rel="stylesheet"> 8ea906c41SOllivier Robert <meta http-equiv="content-type" content="text/html;charset=iso-8859-1"> 99c2daa00SOllivier Robert </head> 109c2daa00SOllivier Robert 119c2daa00SOllivier Robert <body> 129c2daa00SOllivier Robert <h1>NeoClock4X - DCF77 / TDF serial line receiver<br> 139c2daa00SOllivier Robert </h1> 14*2b15cb3dSCy Schubert<p>Last update: 15*2b15cb3dSCy Schubert <!-- #BeginDate format:En2m -->21-Oct-2010 23:44<!-- #EndDate --> 16*2b15cb3dSCy Schubert UTC</p> 179c2daa00SOllivier Robert <hr size="2" width="100%"> 189c2daa00SOllivier Robert <h2>Synopsis</h2> 19ea906c41SOllivier Robert <table width="100%"> 209c2daa00SOllivier Robert <tbody> 219c2daa00SOllivier Robert <tr> 229c2daa00SOllivier Robert <td valign="top"> 23ea906c41SOllivier Robert <table width="100%"> 249c2daa00SOllivier Robert <tbody> 259c2daa00SOllivier Robert <tr> 269c2daa00SOllivier Robert <td valign="top">Adress<br> 279c2daa00SOllivier Robert </td> 289c2daa00SOllivier Robert <td valign="top">127.127.44.u<br> 299c2daa00SOllivier Robert </td> 309c2daa00SOllivier Robert </tr> 319c2daa00SOllivier Robert <tr> 329c2daa00SOllivier Robert <td valign="top">Reference ID<br> 339c2daa00SOllivier Robert </td> 349c2daa00SOllivier Robert <td valign="top">neol<br> 359c2daa00SOllivier Robert </td> 369c2daa00SOllivier Robert </tr> 379c2daa00SOllivier Robert <tr> 389c2daa00SOllivier Robert <td valign="top">Driver ID<br> 399c2daa00SOllivier Robert </td> 409c2daa00SOllivier Robert <td valign="top">NEOCLK4X<br> 419c2daa00SOllivier Robert </td> 429c2daa00SOllivier Robert </tr> 439c2daa00SOllivier Robert <tr> 449c2daa00SOllivier Robert <td valign="top">Serial Port<br> 459c2daa00SOllivier Robert </td> 469c2daa00SOllivier Robert <td valign="top">/dev/neoclock4x-u<br> 479c2daa00SOllivier Robert </td> 489c2daa00SOllivier Robert </tr> 499c2daa00SOllivier Robert </tbody> 509c2daa00SOllivier Robert </table> 519c2daa00SOllivier Robert <br> 529c2daa00SOllivier Robert </td> 539c2daa00SOllivier Robert <td align="right" valign="top"><a href="http://www.linum.com"><img src="../pic/neoclock4x.gif" alt="NeoClock4X - DCF77 receiver" height="195" width="150"> </a><br> 549c2daa00SOllivier Robert </td> 559c2daa00SOllivier Robert </tr> 569c2daa00SOllivier Robert </tbody> 579c2daa00SOllivier Robert </table> 589c2daa00SOllivier Robert <hr size="2" width="100%"> 599c2daa00SOllivier Robert <h2>Description</h2> 609c2daa00SOllivier Robert The refclock_neoclock4x driver supports the NeoClock4X receiver available from <a href="http://www.linum.com">Linum Software GmbH</a>. The receiver is available as a <a href="http://www.dcf77.de">DCF77</a> or TDF receiver. Both receivers have the same output string. For more information about the NeoClock4X receiver please visit <a href="http://www.linux-funkuhr.de">http://www.linux-funkuhr.de</a>. 619c2daa00SOllivier Robert <hr size="2" width="100%"> 629c2daa00SOllivier Robert <h2>Fudge Factors</h2> 639c2daa00SOllivier Robert <dl> 649c2daa00SOllivier Robert <dt><b><a href="../clockopt.html">time1 time</a></b> 659c2daa00SOllivier Robert <dd>Specifies the time offset calibration factor with the default value off 0.16958333 seconds. This offset is used to correct serial line and operating system delays incurred in capturing time stamps. If you want to fudge the time1 offset <b>ALWAYS</b> add a value off 0.16958333. This is neccessary to compensate to delay that is caused by transmit the timestamp at 2400 Baud. If you want to compensate the delay that the DCF77 or TDF radio signal takes to travel to your site simply add the needed millisecond delay to the given value. Note that the time here is given in seconds. 669c2daa00SOllivier Robert <dd>Default setting is 0.16958333 seconds.<br> 679c2daa00SOllivier Robert </dl> 689c2daa00SOllivier Robert <dl> 699c2daa00SOllivier Robert <dt><b><a href="../clockopt.html">time2 time</a></b> 709c2daa00SOllivier Robert <dd>Not used by this driver. 719c2daa00SOllivier Robert </dl> 729c2daa00SOllivier Robert <dl> 739c2daa00SOllivier Robert <dt><a href="../clockopt.html"><b>flag1 0 | 1</b></a> 749c2daa00SOllivier Robert <dd>When set to 1 the driver will feed ntp with timestampe even if the radio signal is lost. In this case an internal backup clock generates the timestamps. This is ok as long as the receiver is synced once since the receiver is able to keep time for a long period. 759c2daa00SOllivier Robert <dd>Default setting is 0 = don't synchronize to CMOS clock. 769c2daa00SOllivier Robert <dt><a href="../clockopt.html"><b>flag2 0 | 1</b></a> 779c2daa00SOllivier Robert <dd>You can allow the NeoClock4X driver to use the quartz clock even if it is never synchronized to a radio clock. This is usally not a good idea if you want preceise timestamps since the CMOS clock is maybe not adjusted to a dst status change. So <b>PLEASE</b> switch this only on if you now what you're doing. 789c2daa00SOllivier Robert <dd>Default setting is 0 = don't synchronize to unsynchronized CMOS clock. 799c2daa00SOllivier Robert <dt><a href="../clockopt.html"><b>flag3 0 | 1</b></a> 80ea906c41SOllivier Robert <dd>Not used by this driver. 819c2daa00SOllivier Robert <dt><a href="../clockopt.html"><b>flag4 0 | 1</b></a> 829c2daa00SOllivier Robert <dd>It is recommended to allow extensive logging while you setup the NeoClock4X receiver. If you activate flag4 every received data is logged. You should turn off flag4 as soon as the clock works as expected to reduce logfile cluttering. 839c2daa00SOllivier Robert <dd>Default setting is 0 = don't log received data and converted utc time. 849c2daa00SOllivier Robert </dl> 859c2daa00SOllivier Robert <hr size="2" width="100%"> 869c2daa00SOllivier Robert Please send any comments or question to <a href="mailto:neoclock4@linum.com">neoclock4x@linum.com</a>. 879c2daa00SOllivier Robert <hr> 88ea906c41SOllivier Robert <script type="text/javascript" language="javascript" src="scripts/footer.txt"></script> 899c2daa00SOllivier Robert </body> 909c2daa00SOllivier Robert 919c2daa00SOllivier Robert</html> 92
