https://www.mediawiki.compulab.com/w/index.php?action=history&feed=atom&title=UCM-iMX95_Yocto_Linux%3A_RTCUCM-iMX95 Yocto Linux: RTC - Revision history2026-04-15T07:59:55ZRevision history for this page on the wikiMediaWiki 1.31.0https://www.mediawiki.compulab.com/w/index.php?title=UCM-iMX95_Yocto_Linux:_RTC&diff=5553&oldid=prevIgor: Created page with "There two RTC devices: * SoC integrated '''rtc0''' that can be used as wake-up source * On board '''rtc1''' - a low current battery powered time keeper <!-- == Internal - rtc0..."2025-01-09T15:55:29Z<p>Created page with "There two RTC devices: * SoC integrated '''rtc0''' that can be used as wake-up source * On board '''rtc1''' - a low current battery powered time keeper <!-- == Internal - rtc0..."</p>
<p><b>New page</b></p><div>There two RTC devices:<br />
* SoC integrated '''rtc0''' that can be used as wake-up source<br />
* On board '''rtc1''' - a low current battery powered time keeper<br />
<!--<br />
== Internal - rtc0 ==<br />
See system information:<br />
udevadm info -p /sys/class/rtc/rtc0<br />
<br />
Wake up:</br><br />
rtc0 can be used as a wake up source, e.g. by running:<br />
rtcwake --device /dev/rtc0 -s 5 -m mem<br />
--><br />
== External - rtc1 ==<br />
* System information:<br />
udevadm info -p /sys/class/rtc/rtc1<br />
<br />
* Set the date and write to the RTC:<br />
<pre><br />
date -s "12 SEP 2019 10:00:00"<br />
<br />
Thu Sep 12 10:00:00 UTC 2019<br />
hwclock --systohc --rtc /dev/rtc1<br />
</pre><br />
<br />
* Read the RTC time and date:<br />
<pre><br />
hwclock --show --rtc /dev/rtc1<br />
<br />
2023-06-16 12:01:37.935876+00:00<br />
</pre><br />
<br />
[[Category:Linux]]<br />
[[Category:Yocto]]<br />
[[Category:UCM-iMX95]]</div>Igor