Getting the Code

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The following instructions are based on those at: https://github.com/linux4sam/meta-atmel

export E10_SRC=~/work/e10-2.x

git clone git://git.yoctoproject.org/poky ${E10_SRC}
git clone git://git.openembedded.org/meta-openembedded ${E10_SRC}/meta-openembedded
git clone git://github.com/meta-qt5/meta-qt5.git ${E10_SRC}/meta-qt5
git clone git://github.com/linux4sam/meta-atmel ${E10_SRC}/meta-atmel
git clone git://github.com/synapse-wireless/meta-synapse ${E10_SRC}/meta-synapse
cd ${E10_SRC} && git checkout -b my_branch origin/dizzy-12.0.1
cd ${E10_SRC}/meta-openembedded && git checkout -b my_branch origin/dizzy
cd ${E10_SRC}/meta-qt5 && git checkout -b my_branch origin/master
cd ${E10_SRC}/meta-atmel && git checkout -b my_branch origin/dizzy

Creating your build directory

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cd ${E10_SRC}
export TEMPLATECONF=meta-synapse-conf
source oe-init-build-env build-atmel

If there are any documented changes to the local.conf then those will need to be get set in your build-atmel/conf directory as well.

Enabling bitbake in your terminal

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cd ${E10_SRC}
source oe-init-build-env build-atmel

You will do the above step anytime you open a new terminal to interact with Yocto. It is not a destructive command. It can be run over and over.

Steps to generate the Rescue Image Recipe

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bitbake synapse-image-e10-rescue

To recompile you would first have to clean the image:

bitbake -c cleansstate synapse-image-e10-rescue

Before you can use the first to command to build it again. Note: That is is cleansstate with 2 s characters. These steps can be combined into:

bitbake -c cleansstate synapse-image-e10-rescue; bitbake synapse-image-e10-rescue

Interesting Recipes

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• virtual/kernel - the Linux kernel package
• synapse-image-e10-rescue - the E10 rescue image (kernel + initramfs)
• synapse-image-e10-ota - the E10 OS image for the OTA procedure
• synapse-recovery - script that runs in the rescue image to reload the
• package-index - regenerates the metadata for opkg for any built packages kernel and the rootfs

Extra Packages We Build

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• iproute2 - provides ip
• net-tools - provides ifconfig
• iputils - provides ping, hostname, and arp
• nano - cause vi can be scary
• openvpn
• python-pip
• python-pytz
• python-tornado

Yocto Dependencies

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• chrpath
• gawk
• wget
• git-core
• diffstat
• unzip
• texinfo
• build-essentials

Booting via tftp

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setenv ipaddr <E10 ip addr>
setenv serverip <tftp server ip addr>
tftpboot 0x21000000 uImage-at91sam9x5ek.bin