BeagleBone

Docs

eewiki.net
BeagleBoard Ubuntu on elinux.org

Cape & pin configuration

            
echo cape-universaln > /sys/devices/platform/bone_capemgr/slots
config-pin -i "P9_14"
config-pin "P9_14" pwm
            
        

wifi

            
sudo wpa_cli -i wlan0 list_networks
sudo wpa_cli -i wlan0 select_network 0
sudo wpa_cli -i wlan0 status

sudo dhclient -r  # release address
            
        

U-Boot overlays

When using uboot overlays, make sure you are using updated u-boot both on SD and eMMC.

            
#/boot/uEnv.sh
uname_r=4.14.11-ti-r22

enable_uboot_overlays=1
uboot_overlay_addr0=/lib/firmware/cape-universal-00A0.dtbo
enable_uboot_cape_universal=1

cmdline=coherent_pool=1M net.ifnames=0 quiet cape_universal=enable
            
        

Camera & OpenCV

OpenCV with libturbojpeg and NEON