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Jovan

[Urgent][Debian 11 - 3.0.11][TinkerBoard 2S] OS reads only Date from the RTC clock. The time is zero (00:00) when read from RTC

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Posted (edited)

 

Hello,

We're having issues with reading date&time from RTC clock.

Battery is connected, voltage is measured and is ok. 

 

 

no_i2c_bus.jpgi2c_zero_device.jpg

We can set the date&time in RTC clock using command "hwclock --systohc" as you can see in screenshot below:

time_before_reboot.jpg

But our issue is that after the reboot, only the date is read from RTC clock.

After the reboot, time starts every time at 00:00:00 even though it was written to RTC before the reboot.

This is plain vanilla Debian OS and we're having this issue consistently on more than one device.

time_after_reboot.jpg

Any ideas?

 

Thanks a lot.spacer.pngspacer.png

Edited by Jovan

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@tooz thanks for the prompt response.

Tried and tested it, and yes, it solved our issue.

?

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