By the way, rock3a has rtc hardware, but in the OS it won’t work. This problem has not been solved since rock3a released. There are several discussions in this forum.
According to https://wiki.radxa.com/Rock3/Ubuntu#Test_RTC_Device ,there are 2 rtc device on rock3a, and according to Hi, has anyone run into RTC trouble with Rock 3a? kernel determine which rtc device to use at compile time, so use another rtc device has to be set at compile time. Will new OS image release solve this problem?
And about pwm fan of rock3a, pwm fan work well in the old release of OS image (before radxaOS), but pwm won’t work under new release of OS image(radxaOS), will this problem be solved in the upgrade?