cmio-display.md

Attaching Raspberry Pi Official 7" Display to the Compute Module IO Board

This document is a work in progress and is intended for advanced users.

For the display to work with the Compute Module, the firmware needs to be October 23rd 2015 or newer (use vcgencmd version to check).

Quickstart - Display Only

1. Connect the display to the DISP1 port on the Compute Module IO board through the 22W to 15W display adaptor.

2. Connect these pins together with jumper wires:

   GPIO0 - CD1_SDA
   GPIO1 - CD1_SCL
   

3. On the compute module, run:

   sudo wget https://goo.gl/Ah6XD5 -O /boot/dt-blob.bin

4. Reboot for the dt-blob.bin file to be read.

Quickstart - Display and Camera

This will enable disp1 and cam1.

1. Connect the display to the DISP1 port on the Compute Module IO board through the 22W to 15W display adaptor.

2. Connect the camera to the CAM1 port on the Compute Module IO board through the 22W to 15W camera adaptor.

3. Connect these pins together with jumper wires:

   GPIO0 - CD0_SDA
   GPIO1 - CD0_SCL
   GPIO4 - CAM0_IO1
   GPIO5 - CAM0_IO0
   
   GPIO28 - CD1_SDA
   GPIO29 - CD1_SCL
   GPIO30 - CAM1_IO1
   GPIO31 - CAM1_IO0
   

   

4. On the compute module, run:

   sudo wget https://goo.gl/1V3ReK -O /boot/dt-blob.bin

5. Make the 7" display as the default by adding the following line into /boot/config.txt:

   display_default_lcd=1
   

6. Reboot for the dt-blob.bin file to be read.

   

Software support

There is no additional configuration required to enable the touch screen. The touch interface should out work of the box once the screen is successfully detected.

Sources

• dt-blob-disp1-cam1.dts
• dt-blob-disp1-only.dts