DesignWare ARC MetaWare Development Toolkit (MWDT)

1. You need to have ARC MWDT installed on your host.

2. You need to have Zephyr SDK installed on your host.

   Note

   A Zephyr SDK is used as a source of tools like device tree compiler (DTC), QEMU, etc… Even though ARC MWDT toolchain is used for Zephyr RTOS build, still the GNU preprocessor & GNU objcopy might be used for some steps like device tree preprocessing and .bin file generation. We used Zephyr SDK as a source of these ARC GNU tools as well.

3. Set these environment variables:

   • Set ZEPHYR_TOOLCHAIN_VARIANT to arcmwdt.

   • Set ARCMWDT_TOOLCHAIN_PATH to the toolchain installation directory. MWDT installation provides METAWARE_ROOT so simply set ARCMWDT_TOOLCHAIN_PATH to $METAWARE_ROOT/../ (Linux) or %METAWARE_ROOT%\..\ (Windows).

   Tip

   If you have only one ARC MWDT toolchain version installed on your machine you may skip setting ARCMWDT_TOOLCHAIN_PATH - it would be detected automatically.

4. To check that you have set these variables correctly in your current environment, follow these example shell sessions (the ARCMWDT_TOOLCHAIN_PATH values may be different on your system):

   # Linux:
   $ echo $ZEPHYR_TOOLCHAIN_VARIANT
   arcmwdt
   $ echo $ARCMWDT_TOOLCHAIN_PATH
   /home/you/ARC/MWDT_2023.03/
   
   # Windows:
   > echo %ZEPHYR_TOOLCHAIN_VARIANT%
   arcmwdt
   > echo %ARCMWDT_TOOLCHAIN_PATH%
   C:\ARC\MWDT_2023.03\