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--- versalogic_gps [2014/06/19 18:55] – admin
+++ versalogic_gps [2014/06/20 16:41] – [Install GPSd] admin
@@ Line 43: / Line 43: @@
 </code>
   * Test gpsd. <code>gpsd -D 5 -N -n /dev/ttyACM0</code>
+====/etc/ntp.conf====
+<code># Allow more distance between GPS (USB) and Serial PPS.
+# Stratum level 12 when no ref source available
+tos mindist 0.010 orphan 12
+driftfile /var/lib/ntp/ntp.drift
+statsdir /var/log/ntpstats/
+statistics loopstats peerstats clockstats
+filegen loopstats file loopstats type day enable
+filegen peerstats file peerstats type day enable
+filegen clockstats file clockstats type day enable
+# Local servers
+server ntp1.polaire.nl
+server ntp2.polaire.nl
+server ntp3.home.polaire.nl
+# ATOM PPS (/dev/pps0)
+server 127.127.22.0 minpoll 4 maxpoll 4
+fudge  127.127.22.0 refid PPS
+# GPS (USB /dev/ttyACM0)
+server 127.127.28.0 minpoll 4 maxpoll 4 prefer
+fudge 127.127.28.0 refid GPSd
+fudge 127.127.28.0 time1 0.065
+# By default, exchange time with everybody, but don't allow configuration.
+restrict -4 default kod notrap nomodify nopeer noquery
+restrict -6 default kod notrap nomodify nopeer noquery
+# Local users may interrogate the ntp server more closely.
+restrict 127.0.0.1
+restrict ::1</code>