Compute-Module-4

"Compute Module 4" Raspberry Pi Compute Module 4, Options For RAM / EMMC/ Wireless

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Onboard Interfaces CSI Micro HDMI USB2.0/3.0 I2C I2S SPI UART RPi Ethernet

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Compute Module 4

Raspberry Pi Compute Module 4, The Power Of Raspberry Pi 4 In A Compact Form Factor, Options For RAM / EMMC/ Wireless

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Compute Module 4 IO Board

Raspberry Pi Compute Module 4 IO Board, A Development Platform And Reference Base-Board Design For CM4

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Writing image

• If the CM4 you get is the Lite version, you just need to write an image to the SD card as you do for the Raspberry Pi board.
  • Guides of writing SD card
• If the CM4 you get has eMMC, you need to insert it on the IO board and then write the image use the IO Board.
  • Guides of writing eMMC

CSI DSI

CSI and DSI are disabled by default. I2C-10、I2C-11、I2C-0 should be used for Camera and DSI displays.
Open a terminal and run the following commands:

 sudo apt-get install p7zip-full
 wget https://www.waveshare.com/w/upload/4/41/CM4_dt_blob.7z
 7z x CM4_dt_blob.7z -O./CM4_dt_blob
 sudo chmod 777 -R CM4_dt_blob
 cd CM4_dt_blob/
 #If you want to use both cameras and DSI0
 sudo  dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-disp0-double_cam.dts
 #If you want to ue both cameras and DSI1
 sudo  dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-disp1-double_cam.dts
 #HDMI1 is disabled if you use DSI interfaces for displayin. HDMI1 cannot work even thought you just built the file without connecting DSI display, please note it.
 #If you want to enable the HDMI1, please remove the dt-blob.bin file with the command: '''sudo rm -rf /boot/dt-blob.bin'''
 #Turn off IO Board and re-power the CM4

Connect Cameras and DSI display
1: Please first disconnect power off the IP Board when connecting.
2: Use CM-DSI-ADAPTER to connect Compute Module 4 PoE Board and DSI displays
3: UseCSI adapter cable to connect Compute Module 4 PoE Board and CSI cameras.
3: Connect the power adapter
4: Wait for booting.
5: If the DSI display cannot work, please check if you have added /boot/dt-blob.bin and reboot.
6: Please enable camera by raspi-config, choose Interfacing Options->Camera->Yes->Finish-Yesand reboot

Reference:

Test RPi Camera:
Test video0:

sudo raspivid -t 0 -cs 0

Test video1:

sudo raspivid -t 0 -cs 1

• Compute Module IO Board Datasheet

Support

If you require technical support, please go to the Support page and open a ticket.