Changes

==User Manual=====Hardware connection Connection & installation Video===

1. Firstly, need prepair a micro sd card, a minimum 16 32/64 Gb class 10 memory card is recommended. If you use a CM4 with eMMC, you don't need a micro sd card.

:1. You can use Raspberry Pi Imager to Flash or the following alternatives tools::* [https://etcher.balena.io/ balenaEtcher]: The application runs on Windows, MacOS, and Ubuntu operating systems.:* [https://i-win32diskimager.com/ Win32 Disk Imager]: This imaging software is designed for Windows machines.:2. Flash OS image to a microSD memory card by following [https://docs.pikvm.org/flashing_os the simple instructions] or [https://www.raspberrypi.com/documentation/computers/getting-started.html#installing-the-operating-system Official installation tutorial]

2:3. Refer to [[#How to flash OS onto the eMMC of CM4? (CM4 with eMMC)?]] if you use the CM4 shield with eMMC.

3:4. Then power the device, then open explore to login the pikvm web ui.

:1. Short nBOOT Pin, refer to the picture below. [[File:X680-IMG-5615-3.jpg|500px]]

2. Connect CM4 USB port with a Type:[[File:X680-IMG-A to Type5615-B cable to your computer as follow:3.jpg|500px]]

[[File:X6802. Connect CM4 USB port with a Type-IMGA to Type-5546-3.jpg|500px]]B cable to your computer as follow:

:[[File:X680-IMG-5546-3. Power the device via PWR DC Jack with 5V Power adaperjpg|500px]]

4. Then rerfer to [https://www.jeffgeerling3.com/blog/2020/how-flash-raspberry-pi-os-compute-module-4-emmc-usbboot this tutorial] to flash raspberry pi OSPower the device via PWR DC Jack with 5V Power adaper

5:4. Remove the jumper of nBOOT after flashing is complete, then restart your device;Then rerfer to [https://www.jeffgeerling.com/blog/2020/how-flash-raspberry-pi-os-compute-module-4-emmc-usbboot this tutorial] to flash raspberry pi OS

'''PS：If you use CM4 with eMMC:5. Remove the jumper of nBOOT after flashing is complete, then SD card cannot be used.'''restart your device;

===Enable RTC ===Due to different RTC chips with official PiKVM hardware, you still need to :'''configure RTCPS：If you use CM4 with eMMC, then SD card cannot be used.''' to make RTC work normally.

Firstly===Configuring the PiKVM OS===* Login web UI:: Access to PiKVM Web Interface via any browser with the URL https://pikvm/ OR https:// IP address of your ipkvm/, insert the default user and password is admin/admin* Log into PiKVM and open Terminal program* Switch to 'root'user (enable write mode):<pre>su root</pre>:then type the password, and the default password is 'C1220''root' button batteryalso. run the following command in web terminal window* Switch OS to writable mode:<pre>rw</pre>

1* Enable RTC ('''Only for X680 V1. switch to 3''root' user su rootthen type because v1.3 use the passwordds1307 chip, and Please skip this step if you X680 V1.5 using the default password is same chip pcf8563 with pikvm official product):1. Due to different RTC chips with official PiKVM hardware, you still need to ''root' alsoconfigure RTC''' to make RTC work normally.

:2. Switch OS to writable mode rw3. Edit the /boot/config.txt file, and change line <code>dtoverlay=i2c-rtc,pcf8563</code> to <code>dtoverlay=i2c-rtc,ds1307</code> (due to use Insert the different RTC chip). sudo nano /boot/config.txtThen save & '''rebootC1220''' button battery. run the device;following command in web terminal window:

4:3.Test & setting RTCEdit the /boot/config.txt file, and change line <code>dtoverlay=i2c-rtc,pcf8563</code> to <code>dtoverlay=i2c-rtc, write&read ds1307</code> (due to use the time of Raspberry Pi to different RTC DS1307chip). date :<pre>sudo hwclock -wnano /boot/config.txt</pre> sudo hwclock -r:Then save & '''reboot''' the device;

5. Swith OS :Test & setting RTC, write&read the time of Raspberry Pi to readonly modeRTC DS1307 ro<dd><pre>date sudo hwclock -w sudo hwclock -r</pre></dd>

===*Enable OLED display===:Run the following command in web terminal window to enable OLED display: rw :<pre>systemctl enable --now kvmd-oled kvmd-oled-reboot kvmd-oled-shutdown </pre> ro:If you are using <code>PiKVM OS V3 Pre-Assembled</code>, the OLED configuration is already pre-installed, you can ignore this step.: Rotate the OLED display by 180 degrees (Optional):<pre>nano /usr/bin/kvmd-oled</per>:Change the line: return {"height": 64, "rotate": '''2'''} to return {"height": 64, "rotate": '''0'''}, then save & exit