Ashtonites Posted November 27, 2016 Posted November 27, 2016 I have an OPi PC+ running Armbian. Bought an RTC called "DS3231 for Pi" and connected the 3.3V, ground, SDA and SCL pins to the GPIO connector. Ran "sudo i2cdetect -y 0" and it prints a table with "UU" in position 0x68. Ran "hwclock -w -f /dev/rtc1" and the response was "bash: hwclock: command not found" I looked in a subdirectory of /etc/ and found fake_hwclock and hwclock.sh Can anyone tell me what is wrong? Perhaps I should have modified something else before running hwclock? Thanks...
zador.blood.stained Posted November 27, 2016 Posted November 27, 2016 hwclock binary should be installed by default, it is a part of util-linux package, but since it lives in /sbin, you need to use sudo to use it from non-root user.
Ashtonites Posted November 28, 2016 Author Posted November 28, 2016 I've tried your suggestion... you are absolutely correct and it works! Thanks so much. Time is correct after powering off/on with the Ethernet cable unplugged. It seems to me that the OrangePi builders should incorporate a RTC that works into their hardware so Linux illiterates such as I don't have to deal with this. To me, Linux and OPi are only tools to run applications, just as an airplane gets me to a destination. No pilot has ever quizzed me on The Theory of Flight before allowing me to buckle up. But OPi is not quite ready for the masses, I guess. BTW, just in case no one has stored this info to the forum, on my OPi PC+ system, the quiescent 5V current (just Armbian running, no user jobs) is 0.40A; when Armbian is booting up it is at least double that. After having problems with a 5V wall wart power supply months ago, I now run my system from a 12V 1A wall wart, then use a 5A switching regulator to power the OPi PC+ on 5V.... it works flawlessly. The only fly in the ointment is the operator... I guess that I will have to learn Linux someday... regretfully.
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