192 lines
4.9 KiB
HTML
192 lines
4.9 KiB
HTML
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<title>hopf clock drivers by ATLSoft</title>
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</head>
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<body text="#000000" bgcolor="#FFFFFF" link="#0000FF" vlink="#800080" alink="#FF0000">
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<h1>
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<font face="Arial"><i><blink><font size="5">hopf</font></blink></i><font size="+2">
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</font><font size="3">Serial Line Receivers (6021 and kompatible)</font></font></h1>
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<hr>
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<h2>
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<font size=+1>Synopsis</font></h2>
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<table border="0" cellpadding cellspacing width="100%">
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<tr>
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<td>
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<table border="0" cellpadding="3" bgcolor="#C0C0C0">
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<tr>
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<td height="21">
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<div align=right><tt>Address: </tt></div>
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</td>
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<td><b>127.127.38.<i>X</i></b></td>
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</tr>
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<tr>
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<td height="1">
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<div align=right><tt>Reference ID: </tt></div>
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</td>
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<td height="1"><a NAME="REFID"></a><b>.hopf. </b>(default)<b>, GPS, DCF</b></td>
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</tr>
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<tr>
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<td height="21">
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<div align=right><tt>Driver ID: </tt></div>
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</td>
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<td height="21"><b>HOPF_S</b></td>
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</tr>
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<tr>
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<td height="16">
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<div align=right><tt>Serial Port: </tt></div>
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</td>
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<td height="16"><b>/dev/hopfclock<i>X</i></b></td>
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</tr>
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<tr>
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<td height="23">
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<div align=right><tt><font size=+1>Serial I/O</font>: </tt></div>
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</td>
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<td height="23"><b>9600 baud, 8-bits, 1-stop, no parity</b></td>
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</tr>
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</table>
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</td>
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<td align="center"><img border="0" src="pic/fg6021.gif" width="238" height="207"></td>
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</tr>
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</table>
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<hr>
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<h2>
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<font size=+1>Description</font></h2>
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The <b>refclock_hopf_serial</b> driver supports <a href="http://www.hopf.com">hopf
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electronic receivers</a> with serial Interface kompatibel 6021.
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<br>Additional software and information about the software drivers is available
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from: <a href="http://www.ATLSoft.de/ntp">http://www.ATLSoft.de/ntp</a>.
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<br>Latest NTP driver source, executables and documentation is maintained
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at: <a href="http://www.ATLSoft.de/ntp">http://www.ATLSoft.de/ntp</a>
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<hr>
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<h2>
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<font size=+1>Operating System Compatibility</font></h2>
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<p align="left">
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The hopf clock driver has been tested on the following software and hardware
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platforms:
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<br> <table bgcolor="#C0C0C0">
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<tr>
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<td VALIGN=CENTER WIDTH="23%" nowrap>
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<p align="left"><b>Platform</b></p>
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</td>
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<td VALIGN=CENTER nowrap>
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<p align="left"><b>Operating System</b></p>
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</td>
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</tr>
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<tr>
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<td VALIGN=CENTER WIDTH="23%" nowrap>
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<p align="left">i386 (PC) </p>
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</td>
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<td VALIGN=CENTER nowrap>
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<p align="left">Linux</p>
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</td>
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</tr>
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<tr>
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<td nowrap>
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<p align="left">i386 (PC) </p>
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</td>
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<td nowrap>
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<p align="left">Windows NT</p>
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</td>
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</tr>
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<tr>
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<td nowrap>
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<p align="left">i386 (PC) </p>
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</td>
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<center>
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<td nowrap>Windows 2000</td>
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</tr>
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</table></center>
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<hr>
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<h2>
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<font size=+1>O/S Serial Port Configuration</font></h2>
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The driver attempts to open the device <b><tt><a href="#REFID">/dev/hopfclock<i>X</i></a></tt></b>
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where <i><b>X</b></i> is the NTP refclock unit number as defined by the
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LSB of the refclock address. Valid refclock unit numbers are 0 -
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3.
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<p>The user is expected to provide a symbolic link to an available serial
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port device. This is typically performed by a command such as:
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<blockquote><tt>ln -s /dev/ttyS0 /dev/hopfclock0</tt></blockquote>
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Windows NT does not support symbolic links to device files. <br>
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<b> COMx</b>:
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is used by the driver, based on the refclock unit number, where <b> unit 1</b>
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corresponds to <b> COM1</b>: and <b> unit 3</b> corresponds to <b>COM3</b>:
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<br>
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<hr>
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<h2>
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<font size=+1>Fudge Factors</font></h2>
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<dl>
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<dt>
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<b>
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<a NAME="time1"></a><tt><font size=+1><a href="#Configuration">time1 <i>time</i></a></font></tt></b></dt>
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<dd>
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Specifies the time offset calibration factor, in seconds and fraction,
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with default 0.0. Should be set to
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20 milliseconds to correct serial line and operating system delays incurred
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in capturing time stamps from the synchronous packets.</dd>
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<dt>
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<tt><font size=+1><a href="#REFID"><b>refid <i>string</i></b></a></font></tt></dt>
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<dd>
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Specifies the driver reference identifier, <b>GPS </b><i>or</i> <b> DCF</b>.</dd>
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<dt>
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<tt><font size=+1><b>flag1 0
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<dd>
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When set to 1, driver sync's even if only crystal driven.</dd>
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</dl>
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<hr>
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<h2>
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<a NAME="DataFormat"></a><font size=+1>Data Format</font></h2>
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<p>as specified in clock manual under pt. <u>[ <span lang="EN-GB" style="font-size:10.0pt;font-family:
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Arial;mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman";
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mso-ansi-language:EN-GB;mso-fareast-language:DE;mso-bidi-language:AR-SA"><b>Data
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String for NTP</b> ( <b><i>Network Time Protocol </i></b>) </span>]</u></p>
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<hr>
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<h3>Questions or Comments:</h3>
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<p><a href="mailto:altmeier@atlsoft.de">Bernd Altmeier</a><a href="http://www.ATLSoft.de"><br>
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Ing.-B<>ro f<>r Software www.ATLSoft.de</a><p>(last updated 02/28/2001)
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<br>
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</body>
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</html>
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