hagbeck / lejos_rcx

Lejos RCX code with updates / fixes

lejos_rcx

Lejos RCX code with updates / fixes

I've forked this code to make it usable under a modern linx distribution.

In the following lines I decribe the steps to run the Lejos RCX code on newer Linux distributions. I've tried Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Linux Mint 17.3.

I've to point out that the communication betwen a VM under VirtualBox and the USB tower had failed. I think the problem was the "emulated" USB port.

Requirements

sudo apt-get install gcc make ant openjdk-6-jdk openjdk-7-jdk git

Build libraries

Define RCX_HOME

export RCX_HOME=/home/user/RCX

Getting sources from https://github.com/hugheaves/lejos_rcx or https://github.com/hagbeck/lejos_rcx:

git clone https://github.com/hagbeck/lejos_rcx.git

Use JDK 1.6 for the build process because of some dependencies in some classes:

sudo update-alternatives --config java
sudo update-alternatives --config javac

Define LEJOS_HOME:

export LEJOS_HOME=$RCX_HOME/lejos_rcx/lejos

Build libraries using ant:

cd $LEJOS_HOME
ant

If it failes with the errors "fatal error: sys/types.h: No such file or directory" or "fatal error: stdlib.h: No such file or directory" then you are using a linux distribution without the build-essentials installed (i.e. newer Ubuntu versions or Linux Mint). Add these with

sudo apt-get install build-essential

Add Lejos to RCX

Use JDK 1.7 (or 1.8? I will try ;-)):

sudo update-alternatives --config java
sudo update-alternatives --config javac

Configure the tower:

sudo chmod a+rw /dev/usb/legousbtower0
export RCXTTY=/dev/usb/legousbtower0

Push to the RCX:

$LEJOS_HOME/bin/firmdl

I've to point out that the communication betwen a VM under VirtualBox and the USB tower had failed. I think the problem was the "emulated" USB port.

Check

cd $LEJOS_HOME/release/check
$LEJOS_HOME/bin/lejosjc DistributionSmokeTest.java
$LEJOS_HOME/bin/lejos DistributionSmokeTest