Mike, Thanks for your reply and:
Yes, I am using USB device comes up as /dev/cu.usbmodem411 or 621 and /dev/tty.usbmodem 421 or 621 depending on which USB port I use and I clearly do not use the tty device as it will wait until DCD goes high, which is never. I note, below that you talk about /dev/gpsu device?? I did a sum link to /dev/gps0 and can cat the output and see the NMEA stream of alternate $GPRMC and $GPZDA messages, I am using 127.127.20.0 in the ntp.conf: server 127.127.20.0 mode 16 prefer fudge 127.127.20.0 time2 .060 I've created a temporary log file and I do note that I get the following message: key_expire: at 0 associd 7474 peer_clear: at 0 next 1 associd 7474 refid INIT addto_syslog: refclock_open /dev/gps0: Operation not permitted addto_syslog: 127.127.20.0 interface 127.0.0.1 -> (null) key_expire: at 0 associd 7475 peer_clear: at 0 next 2 associd 7475 refid INIT event at 0 17.171.4.13 8011 81 mobilize assoc 7475 newpeer: 192.168.43.12->17.171.4.13 mode 3 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key 00000000 addto_syslog: DNS time.apple.com. ttl 3767 addto_syslog: DNS time.apple.com. minpoll 9 addto_syslog: DNS time.apple.com. maxpoll 12 addto_syslog: DNS time.apple.com. +iburst key_expire: at 0 associd 7476 peer_clear: at 0 next 3 associd 7476 refid INIT event at 0 17.83.253.7 8011 81 mobilize assoc 7476 newpeer: 192.168.43.12->17.83.253.7 mode 3 vers 4 poll 6 10 flags 0x1 0x1 ttl 0 key 00000000 addto_syslog: DNS time.asia.apple.com. ttl 3834 addto_syslog: DNS time.asia.apple.com. minpoll 9 addto_syslog: DNS time.asia.apple.com. maxpoll 12 addto_syslog: DNS time.asia.apple.com. +iburst Noting that ref clock_open /dev.gps0: Operation not permitted. I've checked that the permissions on the dev and the directory are all OK I've also tried making sure that the ntp-restrict.conf includes restrict 127.127.20.0; restrict -6 ::1; I've also tried fooling the IP by including 127.127.20.0 time.apple.com in the hosts file and then selecting time.apple.com in the System Preferences > Time and Date I just cannot get it to accept the gps as a peer. Thanks, Ross On 12/06/2012, at 3:13 PM, mike cook wrote: > > Le 12 juin 2012 à 16:37, Ross T61AA a écrit : > > > A little detail of your issue might help. If you are using usb, I assume you > are using the NMEA driver. I don't have Lion, but 10.6. I did try out a > mg1613s usb board with my MacBook and got it working with the following IIRC > ( I disconnected it as I was just testing the device but that was back in > 2010): > > # Generic NMEA driver - default is timing at last message in stream > # Serial Port: /dev/gpsu; 4800 baud, 8-bits, no parity > # 127.127.20.x mode y where > # x is the com port number > # y is the mode which is a concatenation of message selection in bits 0-3 > # 0 = use all messsages > # 1 = $GPRMC etc see the doc. > # bits 456 are the speed. value 0 = 4800, 16 = 9600, etc > # ex. mode 18 is just $GPGGA messages at 9600 bps > # server 127.127.20.1 mode 18 > # fudge 127.127.20.1 time1 0.0 time2 0.0 stratum 8 > > IIRC there was a time offset due to the message end being used as timing, > which can be allowed for using the time2 fudge. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >> Hi all, >> >> I recently connected up a USB GPS to my Linux box and found it quite easy to >> get NTP to up from the GPS. I was hoping to get the same GPS to update the >> Mac running Lion 10.7.4, however, it has been a very frustrating uphill >> battle. >> >> Has anybody managed to get GPS NTP update working on OS-X? >> >> 73 >> >> Ross >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
