micropython/mpy-cross
Damien George 853fb08d0d mpy-cross: Remove setting of MICROPY_FORCE_32BIT=1 from Makefile.
Building in 32-bit mode was only to reduce binary size on 64-bit machines
and is otherwise not needed.  Having it forced to 32-bit meant an
unnecessary dependency on 32-bit libraries that is now removed.
2016-03-09 15:56:11 +00:00
..
.gitignore
Makefile mpy-cross: Remove setting of MICROPY_FORCE_32BIT=1 from Makefile. 2016-03-09 15:56:11 +00:00
README.md
gccollect.c
main.c mpy-cross: Give a more sensible error message when file doesn't exist. 2016-03-02 16:12:00 +00:00
mpconfigport.h
mphalport.h
qstrdefsport.h

README.md

MicroPython cross compiler

This directory contains the MicroPython cross compiler, which runs under any Unix-like system and compiles .py scripts into .mpy files.

Build it as usual:

$ make

The compiler is called mpy-cross. Invoke it as:

$ ./mpy-cross foo.py

This will create a file foo.mpy which can then be copied to a place accessible by the target MicroPython runtime (eg onto a pyboard's filesystem), and then imported like any other Python module using import foo.

Different target runtimes may require a different format of the compiled bytecode, and such options can be passed to the cross compiler. For example, the unix port of MicroPython requires the following:

$ ./mpy-cross -mcache-lookup-bc foo.py

Run ./mpy-cross -h to get a full list of options.