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INDI Library v2.0.6 is Released (02 Feb 2024)

Bi-monthly release with minor bug fixes and improvements

More RTC madness!!!!

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Replied by Gilles Gagnon on topic More RTC madness!!!!

Hello Brian,

When I issue "date; sudo hwclock -r" I get an output similar to yours. I don't have any Internationalisation Options in raspi-config either.

Have you tried adding "hwclock -s" in /etc/rc.local, before the "exit 0" line? It solved the problem for me.

Good luck.

Gilles
5 years 1 month ago #34237

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Replied by Andres Rossi on topic More RTC madness!!!!

681/5000
I'm having problems with my RTC too. I bought a ds3231 and I can not do system synchronization with RTC.
I tried everything, every tutorial you share on these topics and nothing.

Now my RTC keeps the time correctly, but I can not synchronize with the system, even if I use hwclock -s in the rc.local file. In fact, I think that by adding the two lines to the rc.local file, this cause stops working rc.local or something like that since the VAP stopped working after that (there is a line of code to activate the VAP in rc. local).

The only way to synchronize RTC with the system time is by typing sudo hwclock -s in the terminal: /

Any suggestions?
Thank you
5 years 1 month ago #34880

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Replied by Gilles Gagnon on topic More RTC madness!!!!

Thanks for reviving this thread. You made me realize that my suggestion (in #34237) of putting "hwclock -s" in rc.local was not quite correct; sorry for that.

In my case, what worked was to put "/sbin/hwclock --hctosys" in rc.local (before the "exit 0"), not "hwclock -s" as mentionned in my previous post. "--hctosys" will set the system time and date with the time/date from the hardware clock.

Sorry for the confusion, must have been my winter cold :-/ !
5 years 1 month ago #34881

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Replied by Andrew on topic More RTC madness!!!!

You may need to put '&' at the end of the command in RC.local for it to continue properly.
hwclock -s &
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5 years 1 month ago #34884

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Replied by Radek Kaczorek on topic More RTC madness!!!!

Documentation says these are equivalent:
-s, --hctosys
              Set the System Clock from the Hardware Clock
5 years 1 month ago #34908

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Replied by Andres Rossi on topic More RTC madness!!!!

That's it!!! Just adding '&' at the end of the hwclock -s makes work it!
Thank you
5 years 1 month ago #34921

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Replied by Freddy on topic More RTC madness!!!!

Can you explain where exactly do you place this command?
5 years 3 weeks ago #35798

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Replied by Radek Kaczorek on topic More RTC madness!!!!

You add it to /etc/rc.local just above the line that says "exit 0"
Last edit: 5 years 3 weeks ago by Radek Kaczorek.
5 years 3 weeks ago #35803

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Replied by Freddy on topic More RTC madness!!!!

Thanks Radek, I will add that once I receive my RTC.
5 years 3 weeks ago #35808

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Replied by Ron Kramer on topic More RTC madness!!!!

I was pointed here. Total noob - so I've done nothing other than installed it on the pins.
I'm using astroberry. I have a D1307

I tried some online configs, but they just messed up my OS (well I did) and I reflashed.

Though I'm not sure if this is really needed - the clock seems to update from the network?
my config is unaltered (unless software will change it) I have not edited it.

these don't do anything really.

sudo apt-get install indi-full gsc - Does nothing I just get the prompt again

sudo i2cdetect -y 1 Error: could not open file /dec/i2c-1 or /dec/i2c/1 no such file in dir.

I didn't look for D1037 specific install - I'll google that and see if it reveals something.
AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

5 years 3 weeks ago #35981

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Replied by Ron Kramer on topic More RTC madness!!!!

DONE DEAL. I googled and this time I specified my chip.
It's working great. ONLY hard part was trying to save the dang config.txt on top of a system file. I HATE OS's that tell me I don't have permission.

For others - try this link.
pimylifeup.com/raspberry-pi-rtc/
AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

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5 years 3 weeks ago #35987

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Replied by Freddy on topic More RTC madness!!!!

Thank You! Just what I need....my RTC will arrive soon!
5 years 3 weeks ago #36025

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