MicroPython external C modules

[Herve]

Hi everybody.
I have an esp32 and i would like to add external C modules.
I followed this instructions : https://docs.micropython.org/en/latest/ ... dules.html
The compilation work but it's impossible to import the module in the prompt microPython.


>>> import example
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: no module named 'example'


If anybody has a solution or a idea, i take it.

Thanks all.

[jimmo]

Are you able to post your code (e.g. to github).

Can you verify that your module is definitely being linked into the final firmware image (e.g. use nm or objdump).

[Herve]

I found the solution.

The command : " make USER_C_MODULES=../../../modules CFLAGS_EXTRA=-DMODULE_EXAMPLE_ENABLED=1 all " dosen't work.
You need to add " #define MODULE_EXAMPLE_ENABLED (1) " to the mpconfigport.h and do " " make USER_C_MODULES=../../../modules all" and now it's work !!

Thanks for your answer and sorry to distrubed you.

[jimmo]

The command : " make USER_C_MODULES=../../../modules CFLAGS_EXTRA=-DMODULE_EXAMPLE_ENABLED=1 all " dosen't work.

Are you using ESP32 by any chance?

For some reason the ESP32 makefile doesn't use CFLAGS_EXTRA. I don't have an ESP32 board or the ESP32 toolchain set up but maybe you could send a PR?