A guide and helper script for ARM cross compiling toolchain on a Mac

mac-arm-toolchain-script

[Mitchell Johnson] wanted to develop for the STM32F4 Discovery board on his Mac. There are a few ready-to-use options when it comes to the ARM toolchains, but he couldn’t find one that satisfied all of his needs. After working out all the kinks he wrote a guide and tweaked a script to install the ARM tools on a Mac.

The problem he had with some of the pre-packaged tool chains is that they didn’t support the hardware floating point functionality of STM’s Cortex-M4 chips. To get around this without doing his own ground-up build (which can be quite a challenge) he forked the Summon Arm Toolchain script and modified it to include ST-Link support in the build. One of the things that we like about that script is it installs the tools in a sub-directory of your home directory. This way if you already have another ARM toolchain you can switch between the two by tweaking your PATH variable.

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