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A: Firstly, insert the C1220 button battery.
run the following command:
rw
sudo nano /boot/config.txt
#Then change the line: '''dtoverlay=i2c-rtc,pcf8563''' to '''dtoverlay=i2c-rtc,ds1307'''
#Test RTC
#Display the current time of the Raspberry Pi
date
#Write the time of Raspberry Pi to DS1307
sudo hwclock -w
#Read the time of DS1307
sudo hwclock -r
ro
X680
, ro
'''Q: How to enable RTCDoes x680 support proarammable switch between PC?''' A: '''NO'''
'''Q: Does the X680 support PoE power? How to enable PoE Power?'''