GNU Arm Embedded
Download and install a GNU Arm Embedded build for your operating system and extract it on your file system.
On Windows, we’ll assume for this guide that you install into the directory
C:\gnu_arm_embedded. You can also choose the default installation path used by the ARM GCC installer, in which case you will need to adjust the path accordingly in the guide below.
On macOS Catalina or later you might need to change a security policy for the toolchain to be able to run from the terminal.
GNUARMEMB_TOOLCHAIN_PATHto the toolchain installation directory.
To check that you have set these variables correctly in your current environment, follow these example shell sessions (the
GNUARMEMB_TOOLCHAIN_PATHvalues may be different on your system):
# Linux, macOS: $ echo $ZEPHYR_TOOLCHAIN_VARIANT gnuarmemb $ echo $GNUARMEMB_TOOLCHAIN_PATH /home/you/Downloads/gnu_arm_embedded # Windows: > echo %ZEPHYR_TOOLCHAIN_VARIANT% gnuarmemb > echo %GNUARMEMB_TOOLCHAIN_PATH% C:\gnu_arm_embedded
On macOS, if you are having trouble with the suggested procedure, there is an unofficial package on brew that might help you. Run
brew install gcc-arm-embeddedand configure the variables
GNUARMEMB_TOOLCHAIN_PATHto the brew installation directory (something like