RockpiS/hardware/display - Revision history

Stephen: /* Software */

2020-03-30T05:11:17Z

‎Software

Stephen at 11:00, 28 March 2020

2020-03-28T11:00:06Z

Stephen: Created page with "{{rockpiS_header}} {{Languages|rockpiS/hardware/display}} ROCK Pi S > Hardware > Display == Waveshare..."

2019-08-06T08:34:06Z

Created page with "{{rockpiS_header}} {{Languages|rockpiS/hardware/display}} ROCK Pi S > Hardware > Display == Waveshare..."

New page

{{rockpiS_header}}
{{Languages|rockpiS/hardware/display}}

[[rockpiS | ROCK Pi S]] > [[rockpiS/hardware | Hardware]] > [[rockpiS/hardware/display | Display]]

== Waveshare 3.5 inch LCD ==

For waveshare LCD, both display and touch are two spi devices.

Due to the hardware limitation with only one CS for spi2 of ROCK Pi S, waveshare LCD only support display but touch.

Wavashare LCD works as a framebuffer device.

=== Model B v2 ===

Update kernel(>=4.4.143-23) and rockpis-dtbo(>=4.2) pacakge.

When use it , add the following lines to the hardware interface config file /boot/hw_intfc.conf :

intfc:uart2=off
intfc:i2c0=off
intfc:spi2=on

intfc:dtoverlay=spi2-waveshare35b-v2

To install the required display support packages enter the following command lines:

$ sudo apt-get update
$ sudo apt-get install xserver-xorg-video-fbdev

Backup and clean the contents of file, /etc/X11/xorg.conf.d/20-modesetting.conf. Then add the following lines to it:
Section "Device"
Identifier "Rockchip Graphics"
Driver "fbdev"
Option "fbdev" "/dev/fb0"
Option "DRI" "2"
EndSection

You need to checkout the device, "/dev/fb0" or "/dev/fb1".

Reboot ROCK Pi S.

=== Model C ===

Update kernel(>=4.4.143-23) and rockpis-dtbo(>=4.2) pacakge.

When use it , add the following lines to the hardware interface config file /boot/hw_intfc.conf :

intfc:uart2=off
intfc:i2c0=off
intfc:spi2=on

intfc:dtoverlay=spi2-waveshare35c

To install the required display support packages enter the following command lines:

$ sudo apt-get update
$ sudo apt-get install xserver-xorg-video-fbdev

Backup and clean the contents of file, /etc/X11/xorg.conf.d/20-modesetting.conf. Then add the following lines to it:
Section "Device"
Identifier "Rockchip Graphics"
Driver "fbdev"
Option "fbdev" "/dev/fb0"
Option "DRI" "2"
EndSection

You need to checkout the device, "/dev/fb0" or "/dev/fb1".

Reboot ROCK Pi S.

== Troubleshooting ==

* If you have issue with display, start a new post on the forum. https://forum.radxa.com/

@@ Line 24: / Line 24: @@
 =====Step 1: Modifying configuration files.=====
-For those ROCK Pi S system images released after March 1st, 2020, use configuration file, /boot/uEnv.txt. See [https://wiki.radxa.com/Device-tree-overlays ROCK Pi S DTBO] to know more about uENv.txt and dtbo.
+* '''(A)''' For those ROCK Pi S system images released after March 1st, 2020, use configuration file, '''/boot/uEnv.txt'''. The related packages include rockchip-overlay, linux-4.4-rockpis-latest, etc. See [https://wiki.radxa.com/Device-tree-overlays ROCK Pi S DTBO] to know more about uEnv.txt and dtbo. Here is an example for using Waveshare 3.5inch RPI LCD on ROCK Pi S V1.2, adding the following lines in /boot/uEnv.txt.
-Append one of the following lines to 'overlays=' line in /boot/uEnv.txt.
+  overlays=rockpis-v11-spi2-waveshare35b-v2
-  rockpis-v11-spi2-waveshare35b-v2
+* '''(B)''' For those ROCK Pi S system images released after March 1st, 2020, use configuration file, '''/boot/hw_intfc.conf'''. See '''/boot/overlays/README'''. The related packages include rockchip-overlay, linux-4.4-rockpis-latest, rockpis-dtbo, etc. At first you need to update '''kernel (>= 4.4.143-43)''' and '''rockpis-dtbo (>= 4.5)''' package. And then add the following lines to the hardware interface config file /boot/hw_intfc.conf to use Waveshare 3.5inch RPI LCD on ROCK Pi S V1.2.
-  rockpis-v11-spi2-waveshare35c
-  rockpis-v12-spi2-waveshare35b-v2
-  rockpis-v12-spi2-waveshare35c
-Example of adding dtbo :
+  intfc:uart2=off
-   overlays=rockpis-v11-spi2-waveshare35b-v2
+All Waveshare 3.5inch RPI LCD dtbo for '''A-class''' and '''B-class''' system images are
 ===== Step 2: Install required display packages =====
@@ Line 54: / Line 59: @@
 You need to checkout the device, "/dev/fb0" or "/dev/fb1".
 Reboot ROCK Pi S.
 === Troubleshooting ===
 * If you have issue with display, start a new post on the forum. https://forum.radxa.com/

@@ Line 4: / Line 4: @@
      [[rockpiS | ROCK Pi S]] > [[rockpiS/hardware | Hardware]] > [[rockpiS/hardware/display | Display]]
-== Waveshare 3.5 inch LCD ==
+=== Waveshare 3.5inch RPI LCD ===
-For waveshare LCD, both  display and touch are two spi devices.
+For Waveshare 3.5inch RPI LCD, both display and touch are two spi devices.
-Due to the hardware limitation with only one CS  for spi2 of ROCK Pi  S, waveshare LCD only support display but touch.
+Due to the hardware limitation with only one CS  for spi2 of ROCK Pi  S, Waveshare 3.5inch RPI LCD only supports display but touch.
-Wavashare LCD works as a framebuffer device.
+The Waveshare 3.5inch RPI LCD works as a framebuffer device.
-=== Model B v2 ===
+==== Hardware ====
-Update kernel(>=4.4.143-23) and rockpis-dtbo(>=4.2) pacakge.
+[https://www.waveshare.com/3.5inch-rpi-lcd-b.htm Waveshare 3.5inch RPI LCD Model B V2.0].
-When use it , add the following lines to the hardware interface config file /boot/hw_intfc.conf :
+[https://www.waveshare.com/3.5inch-rpi-lcd-c.htm Waveshare 3.5inch RPI LCD Model C].
-  intfc:uart2=off
+==== Software ====
-  intfc:i2c0=off
-  intfc:spi2=on
-−
-  intfc:dtoverlay=spi2-waveshare35b-v2
-To install the required display support packages enter the following command lines:
+=====Step 1: Modifying configuration files.=====
-  $ sudo apt-get update
+For those ROCK Pi S system images released after March 1st, 2020, use configuration file, /boot/uEnv.txt. See [https://wiki.radxa.com/Device-tree-overlays ROCK Pi S DTBO] to know more about uENv.txt and dtbo.
-  $ sudo apt-get install xserver-xorg-video-fbdev
-Backup and clean the contents of file, /etc/X11/xorg.conf.d/20-modesetting.conf. Then add the following lines to it:
+Append one of the following lines to 'overlays=' line in /boot/uEnv.txt.
-  Section "Device"
-      Identifier  "Rockchip Graphics"
-      Driver      "fbdev"
-      Option      "fbdev"          "/dev/fb0"
-      Option      "DRI"            "2"
-  EndSection
-You need to checkout the device, "/dev/fb0" or "/dev/fb1".
+  rockpis-v11-spi2-waveshare35b-v2
-Reboot ROCK Pi S.
+Example of adding dtbo :
-=== Model C ===
+  overlays=rockpis-v11-spi2-waveshare35b-v2
-Update kernel(>=4.4.143-23) and rockpis-dtbo(>=4.2) pacakge.
+===== Step 2: Install required display packages =====
-When use it , add the following lines to the hardware interface config file /boot/hw_intfc.conf :
+  $ sudo apt-get update
-  intfc:uart2=off
+===== Step 3: Modify /etc/X11/xorg.conf.d/20-modesetting.conf =====
-  intfc:i2c0=off
-  intfc:spi2=on
-−
-  intfc:dtoverlay=spi2-waveshare35c
-−
-To install the required display support packages enter the following command lines:
-−
-  $ sudo apt-get update
-  $ sudo apt-get install xserver-xorg-video-fbdev
 Backup and clean the contents of file, /etc/X11/xorg.conf.d/20-modesetting.conf. Then add the following lines to it:
@@ Line 71: / Line 56: @@
 Reboot ROCK Pi S.
-== Troubleshooting ==
+=== Troubleshooting ===
 * If you have issue with display, start a new post on the forum. https://forum.radxa.com/