To get started, first install julia v0.6.X on the PC running a Linux distribution by following the instructions specified [here](https://github.com/JuliaLang/julia/blob/master/README.md). So far, the system has only been testen on Ubuntu 14.* and 16.*.
## On the BBB
On the BeagleBone, first flash it with a Debian image for 32 bit ARM processors
(BeagleBoard.org Debian Image 2017-03-19) using a micro-SD by following [this guide](http://derekmolloy.ie/write-a-new-image-to-the-beaglebone-black/).
You may also include a Julia v0.6 tarball, alternatively transferring it
using after an installation.
Once julia is installed julia, run
If using the provided SD card, flash the BB by holding down S2 for about 5
seconds while connecting the BB to 5V power. Keep the button pressed until the
four system LEDs (D2/D3/D4/D5) start blinking in a periodical sequence. Leave
the BB alone for 15-20 minutes while flashing, until all four lights are turned
off (or on). Power off the BB, remove the SD card, and power it on again.
in the julia prompt to install all dependencies on the HOST.
`ssh debian@192.168.7.2'
## On the BeagleBone
On the BeagleBone, first install Debian for 32 bit ARM processors using a micro-SD by following [this guide](http://derekmolloy.ie/write-a-new-image-to-the-beaglebone-black/). You may also include a julia v0.6 tarball, alternatively transferring it using after an installation.
an unpack the tarball. Julia should now be operational by running
If chosing the latter, connect the BB and download the julia tarball for ARM (ARMv7 32-bit hard float) from [here](https://julialang.org/downloads/) and scp it to /home/debian/ on the BB. Run
`/home/debian/julia-<distro specific tag>/bin/julia'
Next, open a new terminal on the HOST and cd to the /util directory of the LabConnection package by running in the julia package folder
in the Julia prompt to install all dependencies on the HOST, the source code
is then located in `./julia/v0.6/LabCOnnections'.
`cd && cd .julia/v0.6/LabConnection/util'
If you plan on working with the SPI devices to debug the ADC/DAC, then you will
need a forked `serbus' repository which wraps the `linux/spi/spidev'. Simply
`cd && cd .julia/v0.6'
`git clone https://github.com/mgreiff/serbus'
This directory contains some nice utility files to operate the BB from the host. To flash it with the current revision of the software, including all dependencies, simply execut the shells cript `flash.sh'.
to get the latest revision of the serbus fork.
To update the BB with the latest revision of the code,
`cd && cd .julia/v0.6/LabConnection/util'
`./flash_BB.sh'
This scripts bundles the current code in LabCOnnections and serbus on the host
computer and transfers it to the /home/debian/juliapackages directory on the BB.
## Setting up automatic communication between the BB and the HOST via TCP
To setup automatic start of Julia server on the BB, make sure to have completed all prior installation instructions. SSH to the BeagleBone and copy the julilaserver.service to the systemd/system
## Setting up automatic communication
To setup automatic start of Julia server on the BB, make sure to have completed
all prior installation instructions, and that the lates revision of the
LabConnections package is located on the BB. SSH to the BeagleBone and copy the
julilaserver.service to the systemd/system
`ssh debian@192.168.7.2'
`sudo cp -r /home/debian/juliapackets/LabConnections/src/BeagleBone/startup/juliaserver.service /lib/systemd/system/juliaserver.service` (on the BeagleBone)
