Orange Pi One and external DS3231 RTC on rtc1

[Arti G]

Hello

There is a problem with external RTC on Orange Pi One board, because it has onboard RTC (rtc0) and if I use external one it doesn't work because FPP tries to read from rtc0. How can I change rtc0 to rtc1 and i2c1 to itc0?

If anyone would try to use Orange Pi with RTC here is what I had to do to even have external DS3231 RTC working:

sudo armbian-config
turn on i2c (default is off)
sudo nano /etc/modules
write:
g_serial
rtc-ds1307
sudo nano /etc/rc.local
write before "exit":
echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-0/new_device hwclock -s

sudo i2cdetect -y -r 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

sudo i2cdetect -y -r 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

sudo hwclock -r -f /dev/rtc0
1970-01-01 01:01:55.479533+01:00

sudo hwclock -r -f /dev/rtc1
2023-03-12 21:46:39.992017+01:00

dsmeg
[ 2.177274] sun6i-rtc 1f00000.rtc: registered as rtc0
[ 2.177312] sun6i-rtc 1f00000.rtc: setting system clock to 1970-01-01T00:00:10 UTC (10)
[ 2.177435] sun6i-rtc 1f00000.rtc: RTC enabled
[ 61.883505] rtc-ds1307 0-0068: registered as rtc1
[ 61.883788] i2c i2c-0: new_device: Instantiated device ds1307 at 0x68


I tried to edit:
/opt/fpp/scripts/piRTC
/opt/fpp/etc/update-RTC
but still FPP is loading time from rtc0. Any idea what file I should edit?

[ctmal]

I think you'll have better luck getting an answer over at the falconchristmas forums. I know there are discussions of OrangePi boards over there.