From: Reg Clemens <clemens@ntp.org>
Date: Thu, 1 Nov 2007 06:16:36 +0000 (-0400)
Subject: The oncore hardware provides a 'negative saw-tooth' the offset of the PPS signal
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f31682bef5aea4a92debd465d85597c744d9660d;p=thirdparty%2Fntp.git

The oncore hardware provides a 'negative saw-tooth' the offset of the PPS signal
which is on the zero crossing of its internal clock, from its true value.  the
refclock_oncore.c driver applies this difference to correct the time of the
provided timestamp.  This value was being applied correctly for the 6 and 8 channel
receivers, but not for the 12 channel.  This has been corrected.

bk: 47296f44Tjq8QobLIpMYPmtB6T9H4A
---

diff --git a/ntpd/refclock_oncore.c b/ntpd/refclock_oncore.c
index c720add2ca..8cffb0c538 100644
--- a/ntpd/refclock_oncore.c
+++ b/ntpd/refclock_oncore.c
@@ -2422,14 +2422,14 @@ oncore_msg_BnEnHn(
 			return;
 
 		dt1 = instance->saw_tooth + instance->offset;	 /* dt this time step */
-		instance->saw_tooth = (s_char) instance->BEHn[10]; /* update for next time Hn[10] */
+		instance->saw_tooth = (s_char) instance->BEHn[14]; /* update for next time Hn[14] */
 		dt2 = instance->saw_tooth + instance->offset;	 /* dt next time step */
 	} else {
 		if (instance->BEHn[21]) /* bad TRAIM */
 			return;
 
 		dt1 = instance->saw_tooth + instance->offset;	 /* dt this time step */
-		instance->saw_tooth = (s_char) instance->BEHn[25]; /* update for next time */
+		instance->saw_tooth = (s_char) instance->BEHn[25]; /* update for next time Bn[25], En[25] */
 		dt2 = instance->saw_tooth + instance->offset;	 /* dt next time step */
 	}