RPi-DPI-HAT

Raspberry Pi HAT (Hardware Attached on Top) for TFT-Displays with DPI (Display Parallel Interface).

Features

• 40pin connector for TFT-Display
• LED Backlight Boost Regulator (up to 35V)
• Single 5V Power Supply via GPIO connector
• Note: HDMI and video output cannot be used at the same time with a DPI display

Shop

• RPi-DPI-HAT for TFT-Displays
• 40-Pin FFC-Cable Extenter
• Bundle: RPi-DPI-HAT + 5” 800x480 Display without Touchpanel
• Compatible TFT-Displays (Touchpanel cannot be used):
  • 4.3” 480x272 Display with resitive Touchpanel
  • 5” 800x480 Display without Touchpanel
  • 5” 800x480 Display with resitive Touchpanel
  • 7” 800x480 Display with resitive Touchpanel

Documents

• Schematics + Layout
• DPI Documentation

Software

• Install device tree blob (originally from Robert Ely):

  $ sudo apt-get install device-tree-compiler
  $ wget -N https://raw.github.com/watterott/RPi-DPI-HAT/master/software/dt-blob-dpi.dts
  $ sudo dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-dpi.dts
  

• Open the file /boot/config.txt and add the following lines at the file end:

  $ sudo nano /boot/config.txt
  

  # disable SPI and I2C
  dtparam=spi=off
  dtparam=i2c_arm=off
      
  # enable 800x480 display (TFT050-3, TFT070-4)
  enable_dpi_lcd=1
  display_default_lcd=1
  dpi_group=2
  dpi_mode=87
  dpi_output_format=454661
  hdmi_ignore_edid=0xa5000080
  hdmi_cvt=800 480 60 6 0 0 0
      
  # 0 degrees - normal
  #display_rotate=0
  # 90 degrees
  #display_rotate=1
  # 180 degrees
  #display_rotate=2
  # 270 degrees
  #display_rotate=3
  # horizontal flip
  #display_rotate=0x10000
  # vertical flip
  #display_rotate=0x20000
  

• Reboot the system:

  $ sudo reboot
  

  If there are problems then check, that you have not bootloader version 1.20150923, which has a bug. Upgrade the system with $ sudo apt-get update and $ sudo apt-get upgrade.