MicroPython Forum (Archive)

I think these are better than the launchpad cross compilers : https://developer.arm.com/open-source/g ... /downloads

Then set the CROSS_COMPILE variable :

make BOARD=B_L475E_IOT01A CROSS_COMPILE=mumble/gcc-arm-none-eabi-7-2018-q2-update/bin/arm-none-eabi-

I tried a bunch of variations, and the only combination of Zephyr & micropython that worked was :

micropython-1.9.4

zephyr 1.11 ( ZEPHYR_TOOLCHAIN_VARIANT=zephyr )

BOARD=k64f