Development for 10393

Setup environment

Get sources and build default images: Instructions

Flash vs micro SD

• micro SD cards work best for development
  • replaceable
  • changes get written to the card, no extra sync required

• flash works best for a production system:
  • non-replaceable
  • limited write cycles
  • because of overlayfs changes need an extra sync (overlay_sync) and a proper reboot to get written to the flash.

Environment tree

elphel393
├── bootable-images -> poky/build/tmp/deploy/images/elphel393/ - poky generated boot images
├── fpga-elphel - fpga projects, matching recipes are in meta/meta-elphel393/recipes-core/
│   ├── x359
│   ├── x393
│   └── x393_sata
├── linux-elphel - kernel - a kernel tree with Elphel's sources only - it is merged with the full kernel tree
├── meta - extra recipe layers for poky
│   ├── meta-elphel393 - Elphel's recipes: fpga, device tree, kernel and applications, lots of bbappends
│   ├── meta-ezynq - Elphel's recipes for u-boot
│   ├── meta-openembedded - recipes (like PHP) that were not included in poky 2.0
│   ├── meta-swupdate - swupdate recipes (not yet used)
│   └── meta-xilinx - Xilinx's recipes, help to build kernel and device tree
├── poky - poky tree
│   ├── build
│   │   └── conf
│   │       ├── bblayers.conf - paths to extra layers (generated by setup.py)
│   │       └── local.conf - have a look inside, local configuration (generated by setup.py)
│   └── meta - poky's recipes
├── rootfs-elphel - user applicatons projects and init scripts, matching recipes are found in meta/meta-elphel393/recipes-core/
│   ├── elphel-apps-autocampars - camera parameters manager - setup, store/restore, set default
│   ├── elphel-apps-autoexposure - autoexposure daemon
│   ├── elphel-apps-camogm - recorder program
│   ├── elphel-apps-editconf 
│   ├── elphel-apps-gps - gps receiver application
│   ├── elphel-apps-histograms - histograms
│   ├── elphel-apps-imgsrv - image server
│   ├── elphel-apps-php-extension - php functions, compiled as a php extension (part of php recipe)
│   ├── elphel-apps-tempmon - temperature monitor
│   ├── elphel-init - system init script
│   ├── elphel-udev-rules - udev rules: drive automount
│   ├── elphel-web-393 - web GUIs
│   ├── elphel-web-camvc - main control GUI, ported from 353
│   └── elphel-web-hwmon - hardware monitor
└── tools
    └── elphel-tools-update - useful scripts, e.g. create bootable mmc

Kernel

Applications

Projects structure