URGENT- NTP not using PPS
I am using
Kernel :2.6.23rc2 PPS patch: ntp -pps-2.6.23rc2.diff NTP version: ntp-4.2.4P4 I have enabled PPS support as a module.Under this I have selected PPS debugging message,UART serial support. I am using GPS Receiver TRIMBLE ACE 3 . PPS from GPS receiver is fed to MAX232 and output of MAX232 is fed to DCD pin of serial port.The serial port I have used is ttys3. The relevant part of my ntp.conf is ------------------------------------------------------------- enable stats statsdir /var/log statics loopstats logconfig = all server 127.127.8.3 mode 138 prefer iburst fudge 127.127.8.3 refid TSIP flag3 1 flag2 0 time1 0.042 server 127.127.1.0 fudge 127.127.1.0 stratum 10 ------------------------------------------------------------- These are the results after about half an hour: ------------------------------------------------------------- ntpq -p remote refid st t when poll reach delay offset jitter xGENERIC(3) .TSIP. 0 1 39 64 377 0.000 -35.67 35.234 LOCAL(0) LOCAL(0) 1 20 64 377 0.000 0.000 0.004 ------------------------------------------------------------- ntptime ntp_gettime() returns code 0 (OK) time CAC57B62.7EC56000,SUN, Oct 21 2007 12:56:43.265, (.265534), maximum error 1061671us, estimated error 2us ntp_adjtime() returns code 0 (OK) modes 0x0 (), offset 0.000 us, frequency -0.000 ppm, interval 1 s, maximum error 1121063 us, estimated error 2 us, status 0x1 (PLL), time constant 6, precision 1.000 us, tolerance 512 ppm, ------------------------------------------------------------ Information for generic driver is coming in log file.But no info regarding PPS is coming in log file. But if I am runing the ppstest file I can see PPS data. What could be the possible reason for PPS not being used? Please feel free to ask if any more details is required... |
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