VDT6010 SDK

Maintainer

Mikko Salomäki ms@datarespons.se

Build

External recipe sources are included in the project as git submodules. These modules need to be initialized on first use:

Start of by initializing git

$ git submodule update --init

OpenEmbedded (BitBake) relies on the build environment providing a large set of environment variables. These are most easily set up by sourcing the provide 'env' script:

$ . ./env

This will generate artifacts under the build sub-folder. If you need more flexibility in where to build do:

$ export TEMPLATECONF=<top of project>/build/conf
$ export DR_CM_COMMIT=`git -C <top of project> describe --tags --long --dirty`
$ export DR_BUILD_PLAN=<name of your build>
$ export DR_BUILD_NO=<yout build number if needed>
$ export BB_ENV_EXTRAWHITE="DR_BUILD_PLAN DR_BUILD_NO DR_CM_COMMIT"
$ source <top of project>/oe-core/oe-init-build-env build <top of project>/bitbake/

Factory

Needed for flashing u-boot through SDP (serial download protocol).

Generate factory image , factory tools and u-boot(factory and production) binaries:

$ bitbake factory-tools
$ MACHINE=vdt6010-factory bitbake factory-image

Datarespons reference distro

$ bitbake vdt6010-image

Datarespons reference distro SDK

$ bitbake vdt6010-image -c populate_sdk

Usage

Console

Serial console through debug uart, baud 115200.

or

ssh by certificate. Reference distro certificate in meta-datarespons/recipes-security/ssh-keys/droot

$ ssh -i droot root@ip

Applications

swap-root

Update rootfs

image-install

Fresh install from USB

backlightctl

Control backlight by motion sensor

Example:

# Expects motion sensor connected to gpio138
# Enable gpio interrupt
echo rising > /sys/class/gpio/gpio138/edge
backlightctl -t 30 -i /sys/class/gpio/gpio138 /sys/class/backlight/backlight-lvds/

flash-uboot

Write uboot to spi nor flash

Example:

$ flash-uboot --flash mtd --spl SPL --spl-offset 0x400 --uboot u-boot-ivt.img --write

chromium

Web browser

Example fullscreen:

$ chromium --no-sandbox --kiosk --no-first-run --incognito www.datarespons.com

nmcli

Network configuration

Example set static IP:

$ nmcli con mod "Wired connection 1" ipv4.address 192.168.1.170/24
$ nmcli con mod "Wired connection 1" ipv4.gateway 192.168.1.1
$ nmcli con mod "Wired connection 1" ipv4.dns 8.8.8.8
$ nmcli con mod "Wired connection 1" ipv4.method manual

Flash u-boot bootsplash

Supports gzipped or raw bmp. Max file size 2MB.

Install by:

$ dd if=<BMP> of=/dev/$(awk 'BEGIN { FS = ":" } ; /"splash"/{ print $1 }' /proc/mtd)

Rescue mode

Forcing system into rescue mode allows re-flashing u-boot externally with factory image.

Access following behind service hatch:

• SW 1 (see table below)
• USB_OTG to PC

Mode	SW1-1	SW1-2	SW1-3	SW1-4
Rescue	ON	OFF	OFF	ON
Normal	OFF	ON	ON	OFF

Open items

Linux:

• bootsplash

Possible coming hardware changes

• Allow USB hub reset from SW
  • Mount R336, Demount R335, C217