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Difference between revisions of "RockpiS/hardware/display"

(Created page with "{{rockpiS_header}} {{Languages|rockpiS/hardware/display}} ROCK Pi S > Hardware > Display == Waveshare...")
 
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     [[rockpiS | ROCK Pi S]] > [[rockpiS/hardware | Hardware]] > [[rockpiS/hardware/display | Display]]
 
     [[rockpiS | ROCK Pi S]] > [[rockpiS/hardware | Hardware]] > [[rockpiS/hardware/display | Display]]
  
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== Waveshare 3.5 inch LCD ==
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=== Waveshare 3.5inch RPI LCD ===
  
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For waveshare LCD, both display and touch are two spi devices.
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For Waveshare 3.5inch RPI LCD, both display and touch are two spi devices.
  
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Due to the hardware limitation with only one CS  for spi2 of ROCK Pi  S, waveshare LCD only support display but touch.
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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.
  
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Wavashare LCD works as a framebuffer device.  
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The Waveshare 3.5inch RPI LCD works as a framebuffer device.
  
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=== Model B v2 ===
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==== Hardware ====
  
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Update kernel(>=4.4.143-23) and rockpis-dtbo(>=4.2) pacakge.
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[https://www.waveshare.com/3.5inch-rpi-lcd-b.htm Waveshare 3.5inch RPI LCD Model B V2.0].
  
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When use it , add the following lines to the hardware interface config file /boot/hw_intfc.conf :
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[https://www.waveshare.com/3.5inch-rpi-lcd-c.htm Waveshare 3.5inch RPI LCD Model C].
  
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  intfc:uart2=off
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==== Software ====
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  intfc:i2c0=off
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  intfc:spi2=on
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  intfc:dtoverlay=spi2-waveshare35b-v2
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 +
We recommend you that you use the system images released after March 1st, 2020.
  
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To install the required display support packages enter the following command lines:  
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=====Step 1: Modifying configuration files.=====
  
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  $ sudo apt-get update
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* '''(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.
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  $ sudo apt-get install xserver-xorg-video-fbdev
+
  
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Backup and clean the contents of file, /etc/X11/xorg.conf.d/20-modesetting.conf. Then add the following lines to it:
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   overlays=rockpis-v11-spi2-waveshare35b-v2
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   Section "Device"
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      Identifier  "Rockchip Graphics"
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      Driver      "fbdev"
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      Option      "fbdev"          "/dev/fb0"
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      Option      "DRI"            "2"
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  EndSection
+
  
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You need to checkout the device, "/dev/fb0" or "/dev/fb1".
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* '''(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.
−
 
+
−
Reboot ROCK Pi S.  
+
−
 
+
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=== 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:uart2=off
 
   intfc:i2c0=off
 
   intfc:i2c0=off
 
   intfc:spi2=on
 
   intfc:spi2=on
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   intfc:dtoverlay=rockpis-v12-spi2-waveshare35c
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   intfc:dtoverlay=spi2-waveshare35c
+
  
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To install the required display support packages enter the following command lines:
+
All Waveshare 3.5inch RPI LCD dtbo for '''A-class''' and '''B-class''' system images are
 +
 
 +
  rockpis-v11-spi2-waveshare35b-v2  # Waveshare 3.5inch RPI LCD Model B V2.0 on SPI2 for ROCK Pi S V1.1
 +
  rockpis-v11-spi2-waveshare35c      # Waveshare 3.5inch RPI LCD Model C on SPI2 for ROCK Pi S V1.1
 +
  rockpis-v12-spi2-waveshare35b-v2  # Waveshare 3.5inch RPI LCD Model B V2.0 on SPI2 for ROCK Pi S V1.2
 +
  rockpis-v12-spi2-waveshare35c      #  Waveshare 3.5inch RPI LCD Model C on SPI2 for ROCK Pi S V1.2
 +
 
 +
===== Step 2: Install required display packages =====
  
 
   $ sudo apt-get update
 
   $ sudo apt-get update
−
   $ sudo apt-get install xserver-xorg-video-fbdev
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   $ sudo apt-get install -y xserver-xorg-video-fbdev
 +
 
 +
===== Step 3: Modify /etc/X11/xorg.conf.d/20-modesetting.conf =====
  
 
Backup and clean the contents of file, /etc/X11/xorg.conf.d/20-modesetting.conf. Then add the following lines to it:
 
Backup and clean the contents of file, /etc/X11/xorg.conf.d/20-modesetting.conf. Then add the following lines to it:
Line 69: Line 59:
 
You need to checkout the device, "/dev/fb0" or "/dev/fb1".
 
You need to checkout the device, "/dev/fb0" or "/dev/fb1".
  
−
Reboot ROCK Pi S.  
+
Reboot ROCK Pi S.
  
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== Troubleshooting ==
+
=== Troubleshooting ===
  
 
* If you have issue with display, start a new post on the forum. https://forum.radxa.com/
 
* If you have issue with display, start a new post on the forum. https://forum.radxa.com/

Latest revision as of 05:11, 30 March 2020

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    ROCK Pi S >  Hardware >  Display

Waveshare 3.5inch RPI LCD

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 3.5inch RPI LCD only supports display but touch.

The Waveshare 3.5inch RPI LCD works as a framebuffer device.

Hardware

Waveshare 3.5inch RPI LCD Model B V2.0.

Waveshare 3.5inch RPI LCD Model C.

Software

We recommend you that you use the system images released after March 1st, 2020.

Step 1: Modifying configuration files.
  • (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 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. 
 overlays=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. 
 intfc:uart2=off
 intfc:i2c0=off
 intfc:spi2=on
 intfc:dtoverlay=rockpis-v12-spi2-waveshare35c

All Waveshare 3.5inch RPI LCD dtbo for A-class and B-class system images are 

 rockpis-v11-spi2-waveshare35b-v2   # Waveshare 3.5inch RPI LCD Model B V2.0 on SPI2 for ROCK Pi S V1.1
 rockpis-v11-spi2-waveshare35c      # Waveshare 3.5inch RPI LCD Model C on SPI2 for ROCK Pi S V1.1
 rockpis-v12-spi2-waveshare35b-v2   # Waveshare 3.5inch RPI LCD Model B V2.0 on SPI2 for ROCK Pi S V1.2
 rockpis-v12-spi2-waveshare35c      #  Waveshare 3.5inch RPI LCD Model C on SPI2 for ROCK Pi S V1.2
Step 2: Install required display packages
 $ sudo apt-get update
 $ sudo apt-get install -y xserver-xorg-video-fbdev
Step 3: Modify /etc/X11/xorg.conf.d/20-modesetting.conf

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

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