VEC6200 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. Read freescale EULA at:

<top of project>/meta-freescale/EULA

If you accept, set ACCEPT_FSL_EULA from "0" to "1" in your newly generated local.conf:

<top of project>/build/conf/local.conf

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=vec6200-factory bitbake factory-image

Datarespons reference distro

$ bitbake vec6200-image

Datarespons reference distro SDK

$ bitbake vec6200-image -c populate_sdk

Usage

Console

Serial console through debug card, baud 115200.

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

dioctl

Example application for accesing digital inputs and outputs

anctl

Example application for accessing analog inputs

status-led

Example application for setting status led

Interfaces

serial

Linux char devices:

/dev/ttymxc0: console

/dev/ttymxc1: COM1 (+rtscts)

/dev/ttymxc2: gpsd reserved

/dev/ttymxc3: COM2 (+rtscts)

/dev/ttymxc4: bluetooth (optional m.2)

/dev/ttySMC: smc reserved

/dev/ttyVEC0: RS485_A

• Termination: /sys/class/gpio/gpio489/value
• J1708: /sys/class/gpio/gpio488/value

/dev/ttyVEC1: RS485_B

• Termination: /sys/class/gpio/gpio485/value
• J1708: /sys/class/gpio/gpio484/value

can

Transceiver default mode is listen only. Set transceiver gpio to 1 to enable

Linux socket devices:

can0:

• Termination: /sys/class/gpio/gpio95/value
• Transceiver: /sys/class/gpio/gpio508/value

can1:

• Termination: /sys/class/gpio/gpio9/value
• Transceiver: /sys/class/gpio/gpio509/value

gps

gps connected to gpsd.

tpm2.0

Linux char device.

accelerometer

iio_device: lsm6dsm_accel

Access through libiio

gyro

iio device: lsm6dsm_gyro

Access through libiio

audio

ALSA sound card: vec6200_audio1

Flash u-boot

• Build tools and binaries: Factory
• Install factory tools:

$ <top of project>/build/tmp-glibc/deploy/sdk/vec6200-factory-tools-*.sh

• Source tools environment:

$ . <tools install dir>/environment-setup-*

• Set system into Rescue mode.
• Extract and run factory image (Connect to system console for progress)

$ cd <top of project>/build/tmp-glibc/deploy/images/vec6200-factory
$ sudo imx_usb -c .

Rescue mode

Forcing system into rescue mode allows re-flashing u-boot externally with factory image. Connect debug board and set jumper JP6 to 1-2.