Difference between revisions of "Rock3/hardware/display"

Revision as of 09:45, 1 December 2022

    ROCK 3 >  Hardware >  Display

ROCK 3 boards support many kinds of display. They are HDMI display, MIPI display, SPI LCD display, etc. We'll tell how to set them up.

Part one: HDMI Display

HDMI is supported on the following devices.

• ROCK 3A
• ROCK 3B
• Radxa CM3 IO

Part two: MIPI Display

Radxa 5inch Touchscreen

Hardware connection

Software support

For ROCK 3A

Upgrade kernel to at least version 4.19.193-35-rockchip

You can uncomment line like "deb http://apt.radxa.com/buster-testing/ buster main" in file /etc/apt/sources.list.d/apt-radxa-com.list to add testing source.

See file /etc/apt/sources.list.d/apt-radxa-com.list

deb http://apt.radxa.com/buster-stable/ buster main
deb http://apt.radxa.com/buster-testing/ buster main

After adding testing source, you need to update APT and install your needed packages.

$ sudo apt-get update
sudo apt install -y linux-4.19-rock-3-latest

Add the item "radxa-5inch-touchscreen-on-rock-3a" to line "overlays=" in /boot/uEnv.txt

overlays=radxa-5inch-touchscreen-on-rock-3a

Reboot ROCK 3A.

Radxa 5inch Touchscreen For ROCK 3C

• Edit config.txt

rock@rock-3c:~$ sudo vim /boot/config.txt

• at the end of the file add overlay

dtoverlay=rock-3c-radxa-5inch-touchscreen

• update extlinux.conf

rock@rock-3c:/boot$ cd /usr/local/sbin/
rock@rock-3c:sudo ./update_extlinux.sh 
rock@rock-3c:sudo reboot

• After restarting your screen will show

Raspberry Pi 7 inch Touch Display

• Edit config.txt

rock@rock-3c:~$ sudo vim /boot/config.txt

• at the end of the file add overlay

dtoverlay=rock-3c-raspberrypi-7inch-touchscreen

• update extlinux.conf

rock@rock-3c:/boot$ cd /usr/local/sbin/
rock@rock-3c:sudo ./update_extlinux.sh 
rock@rock-3c:sudo reboot

• After restarting your screen will show

Part three: SPI Display

Waveshare 3.5 inch LCD Model C

Troubleshooting

• If you have issue with Display, start a new post on the forum. https://forum.radxa.com/c/rock3