[LinuxPPS] Problem with motorola oncore

[Robert Diak]

W dniu 06.08.2014 14:49, Paul Lavender pisze:
> On 06/08/14 13:39, Robert Diak wrote:
>> Hello.
>> We tried synchronize out linux machine (UBUNTU 13.1 ) with oncore
>> receiver.
>> After started ntp we have falseticker status, and after few time
>> offset inrease to 999.000
>>
>>
>>      remote           refid      st t when poll reach   delay offset
>>  jitter
>> ==============================================================================
>>
>> xGPS_ONCORE(0)   .PPS.            0 l   15   16  377    0.000 0.043
>>  0.019
>> ntpq>
>>
>>
>> What's the problem?
>> Thank you
>>
>> Robert
>>
>>
>> _______________________________________________
>> discussions mailing list
>> discussions at linuxpps.org
>> http://www.linuxpps.org/cgi-bin/mailman/listinfo/discussions
>> Wiki: http://wiki.enneenne.com/index.php/LinuxPPS_support
> Shall I be the first to ask? Are you using the NMEA ascii serial output
> to disambiguate? Or are you just using it as a PPS source?
>
> The output you post looks OK if it has only been running for a short time.


Hello.

My file ntp.conf

server 127.127.30.0 minpoll 4 prefer
fudge 127.127.30.0 refid PPS

My file ntp.oncore.0

MODE 1
LON 17 04.394391667  #insert your own longitude here
LAT 52 16.612883333  #insert your own lattitude here
HT 124.58 M #insert your own GPS height here
DELAY 80 NS

Directory /dev/
oncore.pps.0 -> pps0 ( from PPSAPI )
oncore.serial.0 -> ttyS0

Also a have available signal 1PPS from HP5071A connected to pin DCD 
serial port but now it is not used.

Now i have higher offset and it will be encrease


      remote           refid      st t when poll reach   delay   offset 
  jitter
==============================================================================
xGPS_ONCORE(0)   .PPS.            0 l   14   16  377    0.000   -3.988 
0.002

Looking for the ntptime...is error

root at magda:~# ntptime
ntp_gettime() returns code 5 (ERROR)
   time d78ca6c7.d2033e2c  Wed, Aug  6 2014 15:06:15.820, (.820362410),
   maximum error 16000000 us, estimated error 16000000 us, TAI offset 0
ntp_adjtime() returns code 5 (ERROR)
   modes 0x0 (),
   offset 0.000 us, frequency 0.000 ppm, interval 1 s,
   maximum error 16000000 us, estimated error 16000000 us,
   status 0x6041 (PLL,UNSYNC,NANO,MODE),
   time constant 3, precision 0.001 us, tolerance 500 ppm,
root at magda:~#

Please help.

Robert