compiling Ulab

[GodfriedDamm]

Dear community,

I'm having all sorts of problems trying to compile Ulab for the Raspberry Pi Pico 2W. If there is anyone proficient on this subject, could I ask to compile a UF2 for the Pico 2W?

Thanks!

Godfried

[ricksorensen]

Using linux ... (or wsl will work too I think)
Assumes all tools are present (make, cmake, gcc for working OS and arm compiler tools for RP2
Note: I do not have a PICO2 nor a PICO2W. I do have a PICOW (older) that works if I build that version.

# get micropython into /tmp/myupy
git clone https://github.com/micropython/micropython.git /tmp/myupy
# get ulab into /tmp/myulab
git clone https://github.com/v923z/micropython-ulab.git /tmp/myulab
cd /tmp/myupy
# get current release (20250915) .  If unspecified the current master is compiled
git checkout v1.26.1   
# make micropython tool mpy-cross
make -C mpy-cross
cd ports/rp2
make BOARD=RPI_PICO2_W submodules
make BOARD=RPI_PICO2_W USER_C_MODULES=/tmp/myulab/code/micropython.cmake
# untested as I do not have any PICO2 hardware.
# build is in build-RPI_PICO2_W/firmware.uf2