X635-Software
X635 Software Guide base on Raspberry Pi OS bullseye
1. Installing the Operating System
Please refer to Official installation tutorial
2. Preconfigure X635 Device for CM4
If you attempt to boot now you will not have working USB ports, ssh, or any wireless configuration.
We can preconfigure your CM4 device by plugging mico sd into a computer / Pi. You should see the “boot” volume where we can preconfigure our CM4 to be working right from the start.
Enable USB Ports
When mounted in the IO board the USB ports will not function without making a change to config.txt and adding an overlay.
Add the following line to config.txt:
dtoverlay=dwc2,dr_mode=host
After adding this line the two USB ports (as well as the “External USB” header) will function the next time the CM4 boots.
Enable SSH
It’s very useful to have SSH enabled when working with the Compute Module 4. It is enabled simply by creating an empty file named:
ssh
in the root folder of the “boot” volume (the top-most folder of the drive where start4x.elf, fixup.dat and those files are located)
Now when the Pi starts up SSH will automatically be enabled!
Preconfigure WiFi / Wireless
You can also preconfigure the Compute Module 4 (and any Pi) by creating wpa-supplicant.conf at the base of the “boot” volume like we did with “ssh” file.
Create a new file named wpa-supplicant.conf that contains the following:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
country=US
update_config=1
network={
ssid="YourNetwork"
psk="YourPassword"
}
1. To use the HDMI to CSI-2 bridge, you will need to enable Enable legacy camera support.
2. Again open a terminal window and type the following command:
sudo wget https://datasheets.raspberrypi.org/cmio/dt-blob-cam1.bin -O /boot/dt-blob.bin #Download the required file /boot/dt-blob.bin
3. Reboot for the dt-blob.bin file to be read
sudo reboot
4. Open the Terminal and run the command to check if the HDMI to CSI-2 bridge is being seen by the operating system.
Note: You should get back supported=1, detected=1, indicating that the CSI-2 bridge is detected and supported by the operating system. If you get detected=0, then the CSI-2 bridge is not being seen by the operating system.
5. Connect the HDMI in device to x635 carrier board.
connection sample diagram
IMPORTANT! The HDMI to CSI-2 bridge only accepts HDMI input: 1080p30, 1080p25, 720p30, 720p25
6. Test x635 shield via command line
6.1). Record a sample picture: open a terminal window and run the following command to take a still picture and save it to the Desktop:
raspistill -o Desktop/image.jpg
When the command runs, you can see the camera preview open for five seconds before a still picture is taken.
6.2). Record a sample video using the following raspivid command:
raspivid -o Desktop/video.h264
In order to play the video file, double-click the video.h264 file icon on the Desktop to open it in VLC Media Player.
7. Install GStreamer on CM4 - For advanced programmers and advanced applicaitons
7.1) Check out this link - https://qengineering.eu/install-gstreamer-1.18-on-raspberry-pi-4.html
7.2) GStreamer official website: https://gstreamer.freedesktop.org/
Or refer to http://www.suptronics.com/miniPCkits/x635-software.html
Return to X635
Enable comment auto-refresher