Raspberry Pi 3 mod B

Raspberry Pi 3 mod B board

Main steps:

The official list of Raspberry Pi OS images can be found here.
Raspberry recommends using Etcher to write images to SD cards, while the manual procedure for flashing OS images on SD cards can be found in the Raspberry documentation.
The recommended OS is "Raspbian Stretch with desktop".

Either way, make sure the board is powered off before inserting the SD card.

Using a monitor and keyboard, enable SSH following the instruction listed at the point "2. Enable SSH" of the guide.
Alternatively and without the need for additional devices, SSH can be enabled following the steps at point "3. Enable SSH on a headless Raspberry Pi (add file to SD card on another machine)" of the guide.
Default username and password for SSH: pi / raspberry.

Once logged into the Raspberry (either via SSH or using monitor and keyboard), it is possible to use the terminal to SSH into the BeagleBone Blue.

First, check whether the connection between the two is working. With the command ip a a network interface named "eth1" should be listed, which represent the USB connection among the two boards that is configured to be treated as a network interface. The "inet" field of the interface should have value "192.168.7.1/30".
- If the address is not in range of 192.168.7.X/30 (for example 169.254.192.176/16) it means that something is set wrongly. A simple attempt to fix the misconfiguration is to disable and re-enable the interface with the commands sudo ip link set eth1 down followed by sudo ip link set eth1 up which should take care of most -hopefully all- the problems of this kind. Check again the inet field to make sure that the interface received the correct IP address.
The BeagleBone Blue's IP address will be 192.168.7.2, so all is ready to SSH with the command ssh debian@192.168.7.2.

Enable the camera interface by running sudo raspi-config and going to "Interfacing Options -> Camera" (rebooting may be necessary, but the setting will be remembered in the future).
Test that the camera works as expected with the command raspistill -o test.jpg. This will show the camera feed for few seconds and then snap a picture, saving it in the working directory as "test.jpg".
Add a video device with the command sudo modprobe bcm2835-v4l2. The device should appear as /dev/video0 and it will be needed by the OpenDaVINCI software stack.
- This setting will be lost at every reboot. To make it permanent, append bcm2835-v4l2 as a new line in the system file /etc/modules and reboot.