After setting it up and doing some SMD soldering with the RGB flame module, the next step is hacking on the r0ket's firmware, writing l0dable applications.
The r0ket has an ARM processor and its firmware and applications are cross-compiled using the ARM EABI toolchain. The r0ket wiki has instructions on how to set up an environment on Mac OS X, and I'll try to give some comlementary tips on how to accomplish that.
My preferred option would be to use standard homebrew formulae as much as possible. Unfortunately, homebrew chose not to include the ARM EABI toolchain in it's offerings. A homebrew fork has support for the
arm-none-eabi-gcc formula, but I found it not up to date.
If you use MacPorts, it might be possible to
sudo port install arm-none-eabi-gcc, but unfortunately MacPorts and homebrew are mutually exclusive, and I'm definitely sticking with homebrew.
By far, the easiest solution I found was a simple-to-use makefile wrapped up with some patches specifically built for the task of building an ARM EABI toolchain, they can be found on github.
Make sure you have the proper dependencies first:
brew install mpfr gmp libmpc libelf texinfo
Then simply clone the repository, and run the makefile:
git clone https://github.com/jsnyder/arm-eabi-toolchain cd arm-eabi-toolchain make install-cross
Remember you're building the entire toolchain, so expect this step to take at least an hour, and your Mac to heat up running 100% CPU. When all the tools are built you can find them located at
~/arm-cs-tools. Remember to somehow add
~/arm-cs-tools/bin to your
The bonus for all this is that I just recently received my Texas Instruments Stellaris Launchpad evaluation kits, and I'll definitely be making heavy use of this toolchain. Not to mention that an ARM-based Arduino board is in the making...