×

INDI Library v2.0.7 is Released (01 Apr 2024)

Bi-monthly release with minor bug fixes and improvements

Read More...

[ indi_gpsd ] Time is not pulled from gpsd?

  • Posts: 43
  • Thank you received: 4

[ indi_gpsd ] Time is not pulled from gpsd? was created by ecloud

I have not setup ntpd yet. So my system time is not synchronized.
The UTC time in indi client seems to be system time, but not gpsd time.
Is it a bug?
4 years 10 months ago #39431
Attachments:

Please Log in or Create an account to join the conversation.

  • Posts: 152
  • Thank you received: 28

Replied by Petar Milevski on topic [ indi_gpsd ] Time is not pulled from gpsd?

Why not just write a python script which populates GPS time after boot. Then when you start kstars, the time is correct.
4 years 10 months ago #39483

Please Log in or Create an account to join the conversation.

  • Posts: 1309
  • Thank you received: 226

Replied by Andrew on topic [ indi_gpsd ] Time is not pulled from gpsd?

gpstime.py
A Python script I use for force the system clock to update.
import os
import sys
import time
from gps import *
 
print 'Attempting to access GPS time...'
 
try:
	gpsd = gps(mode=WATCH_ENABLE)
except:
	print 'No GPS connection present. TIME NOT SET.'
	sys.exit()
 
while True:
	gpsd.next()
	if gpsd.utc != None and gpsd.utc != '':
		gpstime = gpsd.utc[0:4] + gpsd.utc[5:7] + gpsd.utc[8:10] + ' ' + gpsd.utc[11:19]
		print 'Setting system time to GPS time...'
		os.system('sudo date -u --set="%s"' % gpstime)
		print 'System time set.'
		sys.exit()
	time.sleep(1)
4 years 10 months ago #39532

Please Log in or Create an account to join the conversation.

  • Posts: 43
  • Thank you received: 4

Replied by ecloud on topic [ indi_gpsd ] Time is not pulled from gpsd?

Hi, this is not about 'How to get datetime from gpsd'.
This is to concern which time should be displayed on the panel of indi_gpsd.
Does this work as design or be a bug?
And which time will kstars use?
The system time is shown on the panel will make confusion.
4 years 10 months ago #39548

Please Log in or Create an account to join the conversation.

  • Posts: 152
  • Thank you received: 28

Replied by Petar Milevski on topic [ indi_gpsd ] Time is not pulled from gpsd?

As ihoujin and i have said, a simple script will also do the job. I don't know if it is a bug, that is a question for the developers.

I had similar issues as you and fixed it with the script.

Check out this thread

www.indilib.org/forum/general/2730-how-t...ver-work-for-me.html

it may help.
4 years 10 months ago #39609

Please Log in or Create an account to join the conversation.

  • Posts: 1309
  • Thank you received: 226

Replied by Andrew on topic [ indi_gpsd ] Time is not pulled from gpsd?


It looks to me like you need to complete the configuration of NTPD to use the GPS time, then the driver should sync up.
Last edit: 4 years 10 months ago by Andrew.
4 years 10 months ago #39625

Please Log in or Create an account to join the conversation.

  • Posts: 43
  • Thank you received: 4

Replied by ecloud on topic [ indi_gpsd ] Time is not pulled from gpsd?

As @IHOUJIN described, it very easy to get the GPS time. So why the indi_gpsd does not get it?
To run the ntpd/chrony will cause a problem under indi.
The gpsd is default to run as plug&play mode, that mean it will scan all the serial ports (ttyUSB0 and other ttyXXX). And to setup chrony to sync datetime needs "-n" option of gpsd, which makes gpsd to lock all the serial ports all the time.
So the mount model will report "the device is used by other program" on /dev/ttyUSB0
To fix it we need to turn the plug&play off (USBAUTO=false) and input the device name for gpsd, /dev/ttyACM0 for example.
This is so boring.
BTW, I didn't find any info like above in the document. I wonder if there is anyone really has tried USB gps device with indi.

People need to write a script / or to change many settings to make the gps work for indi. Is it the true design of this function?
Why not get and update the datetime by inde_gpsd?
The following user(s) said Thank You: Alfred
Last edit: 4 years 9 months ago by ecloud.
4 years 9 months ago #40677

Please Log in or Create an account to join the conversation.

Replied by Jasem Mutlaq on topic [ indi_gpsd ] Time is not pulled from gpsd?

I actually just checked the code for the indi-gpsd and was surprised to find that it uses system time... in there a comment that assumes gpsd is synched with ntpd or chronyd but I don't think a driver should make this assumption. I will make it use the GPS actual time and maybe add a switch to toggle this behavior so that the existing use case would be perserved via config switch.
The following user(s) said Thank You: Alfred, Keld Henningsen
4 years 9 months ago #40702

Please Log in or Create an account to join the conversation.

Replied by Jasem Mutlaq on topic [ indi_gpsd ] Time is not pulled from gpsd?

Ok fix pushed.
The following user(s) said Thank You: Alfred, Andrew
4 years 9 months ago #40704

Please Log in or Create an account to join the conversation.

Time to create page: 0.631 seconds