I have a development kit Digi ConectCore 9P 9215 with Linux OS and I am having problems with the RTC.
At system startup, the RTC driver is loaded, but the following error is displayed:
Setting system time… hwclock: RTC_RD_TIME: Invalid argument
I try to run the test program “rtc_test_c” listed in the Digi ESP IDE for Embedded Linux and also the error occurs.
Can anyone help?