walduino · November 10, 2016 17:53
diff --git a/etc-default-gpsd b/etc-default-gpsd
 # Default settings for the gpsd init script and the hotplug wrapper.

 # Start the gpsd daemon automatically at boot time
 START_DAEMON="true"

 # Use USB hotplugging to add new USB devices automatically to the daemon
 USBAUTO="true"

 # Devices gpsd should collect to at boot time.
 # They need to be read/writeable, either by user gpsd or the group dialout.
 DEVICES="/dev/ttyS2"

 # Other options you want to pass to gpsd
 GPSD_OPTIONS="-n"
diff --git a/etc-ntp.conf b/etc-ntp.conf

 # /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help                                                                    
                                                                                                                                     
 driftfile /var/lib/ntp/ntp.drift                                                                                                     
                                                                                                                                     
 # Enable this if you want statistics to be logged.                                                                                   
 #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                                                                                   
                                                                                                                                     
 # Specify one or more NTP servers.                                                                                                   
                                                                                                                                     
 # Use servers from the NTP Pool Project. Approved by Ubuntu Technical Board                                                          
 # on 2011-02-08 (LP: #104525). See http://www.pool.ntp.org/join.html for                                                             
 # more information.                                                                                                                  
 server ntp.scarlet.be                                                                                                                
 server ptbtime1.ptb.de                                                                                                               
 ntp1.teambelgium.net                                                                                                                 
 server 3.be.pool.ntp.org                                                                                                             
 server 3.europe.pool.ntp.org                                                                                                         
 server 2.europe.pool.ntp.org                                                                                                         
 pool 0.ubuntu.pool.ntp.org iburst                                                                                                    
 pool 1.ubuntu.pool.ntp.org iburst                                                                                                    
 pool 2.ubuntu.pool.ntp.org iburst
 pool 3.ubuntu.pool.ntp.org iburst


 # Use Ubuntu's ntp server as a fallback.
 pool ntp.ubuntu.com

 # Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
 # details.  The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions>
 # might also be helpful.
 #
 # Note that "restrict" applies to both servers and clients, so a configuration
 # that might be intended to block requests from certain clients could also end
 # up blocking replies from your own upstream servers.

 # By default, exchange time with everybody, but don't allow configuration.
 restrict -4 default kod notrap nomodify nopeer noquery limited
 restrict -6 default kod notrap nomodify nopeer noquery limited

 # Local users may interrogate the ntp server more closely.
 restrict 127.0.0.1
 restrict ::1

 # Needed for adding pool entries
 restrict source notrap nomodify noquery

 # Clients from this (example!) subnet have unlimited access, but only if
 # cryptographically authenticated.
 #restrict 192.168.123.0 mask 255.255.255.0 notrust


 # If you want to provide time to your local subnet, change the next line.
 # (Again, the address is an example only.)
 #broadcast 192.168.123.255

 # If you want to listen to time broadcasts on your local subnet, de-comment the
 # next lines.  Please do this only if you trust everybody on the network!
 #disable auth
 #broadcastclient

 #Changes recquired to use pps synchonisation as explained in documentation:
 #http://www.ntp.org/ntpfaq/NTP-s-config-adv.htm#AEN3918

 # GPS Serial data reference (NTP0)
 #server 127.127.28.0
 #fudge 127.127.28.0  refid GPS

 # Kernel-mode PPS ref-clock for the precise seconds
 #server 127.127.22.0 minpoll 1 maxpoll 4 prefer
 #fudge 127.127.22.0  flag1 1  flag3 1 refid PPS

 # coarse time ref-clock
 server 127.127.28.0 minpoll 4 maxpoll 4  prefer
 fudge 127.127.28.0 time1 +0.435 flag1 1 refid GPSD stratum 5

 # PPS fine time ref
 server 127.127.22.0 minpoll 1  maxpoll 4 prefer
 fudge 127.127.22.0 refid PPS

diff --git a/Odroid C1 NTP Stratum 0 PPS GPS Clock b/Odroid C1 NTP Stratum 0 PPS GPS Clock
 sudo -s
 apt-get install device-tree-compiler pps-tools gpsd ntp
 fdtput -c /media/boot/meson8b_odroidc.dtb /pps
 fdtput -t s /media/boot/meson8b_odroidc.dtb /pps compatible "pps-gpio"
 fdtput -t s /media/boot/meson8b_odroidc.dtb /pps gpios "GPIOY_3"

 GPS PPS pin attached to GPIOY_3
 http://odroid.com/dokuwiki/doku.php?id=en:c1_gpio_pps

 test commands
 ppstest /dev/pps0
 apt-get install gpsd-clients ==> cgps
	# Default settings for the gpsd init script and the hotplug wrapper.

	# Start the gpsd daemon automatically at boot time
	START_DAEMON="true"

	# Use USB hotplugging to add new USB devices automatically to the daemon
	USBAUTO="true"

	# Devices gpsd should collect to at boot time.
	# They need to be read/writeable, either by user gpsd or the group dialout.
	DEVICES="/dev/ttyS2"

	# Other options you want to pass to gpsd
	GPSD_OPTIONS="-n"

	# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help

	driftfile /var/lib/ntp/ntp.drift

	# Enable this if you want statistics to be logged.
	#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

	# Specify one or more NTP servers.

	# Use servers from the NTP Pool Project. Approved by Ubuntu Technical Board
	# on 2011-02-08 (LP: #104525). See http://www.pool.ntp.org/join.html for
	# more information.
	server ntp.scarlet.be
	server ptbtime1.ptb.de
	ntp1.teambelgium.net
	server 3.be.pool.ntp.org
	server 3.europe.pool.ntp.org
	server 2.europe.pool.ntp.org
	pool 0.ubuntu.pool.ntp.org iburst
	pool 1.ubuntu.pool.ntp.org iburst
	pool 2.ubuntu.pool.ntp.org iburst
	pool 3.ubuntu.pool.ntp.org iburst


	# Use Ubuntu's ntp server as a fallback.
	pool ntp.ubuntu.com

	# Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
	# details. The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions>
	# might also be helpful.
	#
	# Note that "restrict" applies to both servers and clients, so a configuration
	# that might be intended to block requests from certain clients could also end
	# up blocking replies from your own upstream servers.

	# By default, exchange time with everybody, but don't allow configuration.
	restrict -4 default kod notrap nomodify nopeer noquery limited
	restrict -6 default kod notrap nomodify nopeer noquery limited

	# Local users may interrogate the ntp server more closely.
	restrict 127.0.0.1
	restrict ::1

	# Needed for adding pool entries
	restrict source notrap nomodify noquery

	# Clients from this (example!) subnet have unlimited access, but only if
	# cryptographically authenticated.
	#restrict 192.168.123.0 mask 255.255.255.0 notrust


	# If you want to provide time to your local subnet, change the next line.
	# (Again, the address is an example only.)
	#broadcast 192.168.123.255

	# If you want to listen to time broadcasts on your local subnet, de-comment the
	# next lines. Please do this only if you trust everybody on the network!
	#disable auth
	#broadcastclient

	#Changes recquired to use pps synchonisation as explained in documentation:
	#http://www.ntp.org/ntpfaq/NTP-s-config-adv.htm#AEN3918

	# GPS Serial data reference (NTP0)
	#server 127.127.28.0
	#fudge 127.127.28.0 refid GPS

	# Kernel-mode PPS ref-clock for the precise seconds
	#server 127.127.22.0 minpoll 1 maxpoll 4 prefer
	#fudge 127.127.22.0 flag1 1 flag3 1 refid PPS

	# coarse time ref-clock
	server 127.127.28.0 minpoll 4 maxpoll 4 prefer
	fudge 127.127.28.0 time1 +0.435 flag1 1 refid GPSD stratum 5

	# PPS fine time ref
	server 127.127.22.0 minpoll 1 maxpoll 4 prefer
	fudge 127.127.22.0 refid PPS
	sudo -s
	apt-get install device-tree-compiler pps-tools gpsd ntp
	fdtput -c /media/boot/meson8b_odroidc.dtb /pps
	fdtput -t s /media/boot/meson8b_odroidc.dtb /pps compatible "pps-gpio"
	fdtput -t s /media/boot/meson8b_odroidc.dtb /pps gpios "GPIOY_3"

	GPS PPS pin attached to GPIOY_3
	http://odroid.com/dokuwiki/doku.php?id=en:c1_gpio_pps

	test commands
	ppstest /dev/pps0
	apt-get install gpsd-clients ==> cgps