WebApr 21, 2024 · Here are some useful time-related commands: sudo date -s “Aug 7 09:15” – Manually sets the system time and is useful when testing RTC and GPS units. sudo hwclock -w – This command updates the RTC with the current system time. Use this when you are connected to a network and want to force the RTC to sync with network/system time. WebFeb 18, 2016 · to get the PPS into chrony. I use the external pps sites to give the time to the nearest second (starting PPS with /etc/init.d/gps which has a start. secitonof start) gprintf "Starting gps pps service" modprobe pps-ldisc ldattach 18 /dev/ttyS0 Ie I use the serial port, not the gpio, but the idea should be the same for the gpio pins using the ...
beagleboneblack - No gpsd chronyd data exchange - Stack Overflow
WebWithout a PPS signal coming into GPSD I didn't seem to get any data into chrony through the SOCK interface even though GPSD did see and successfully connect to it according to the GPSD debug output. Thanks, Scott -- To unsubscribe email [email protected] with "unsubscribe" in the subject. As /dev/pps0 gives plausible output, these refclock lines in chrony.conf might be what you need: refclock PPS /dev/pps0 lock NMEA refid GPS refclock SHM 0 offset 0.5 delay 0.2 refid NMEA noselect My system (Raspberry pi3B+ with Adafruit Ultimate GPS HAT version 2) has these non-comment lines in chrony.conf in addition to the default contents: slow toilet fill
chrony – Frequently Asked Questions - TuxFamily
Webchrony.conf - chronyd configuration file SYNOPSIS chrony.conf DESCRIPTION This file configures the chronyd daemon. The compiled-in location is /etc/chrony.conf, but other locations can be specified on the chronyd command line with the -f option. Each directive in the configuration file is placed on a separate line. WebMar 15, 2024 · Linux中的Chrony是一种时间同步工具,它可以帮助系统保持准确的时间。它可以与NTP服务器进行通信,自动调整系统时钟,以确保系统时间与网络时间同步。相比于传统的NTP客户端,Chrony具有更高的精度和更快的响应速度。它还支持多种时钟源,包括GPS、PPS和DCF77等。 WebJun 23, 2024 · # GPS Serial data reference (NTP0) server 127.127.28.0 fudge 127.127.28.0 time1 0.9999 refid GPS # GPS PPS reference (NTP1) server 127.127.28.1 prefer fudge 127.127.28.1 refid PPS Верхняя запись NTP0 указывает на универсальный источник времени, доступный почти на всех ... slow toilet flush troubleshooting