compile micropython (lvgl) for unix

[picpic020960]

Bonjour Uraich
try to build micropython (lvgl) for unix as in your post in 'micropython forum'.
but issue :

xxxxx@LIN0141157:/twatch-2020-micropython/ports/unix$ make V=1 VARIANT=dev
python3 ../../py/makeversionhdr.py build-dev/genhdr/mpversion.h
python3 ../../tools/makemanifest.py -o build-dev/frozen_content.c -v "MPY_DIR=../.." -v "MPY_LIB_DIR=../../../micropython-lib" -v "PORT_DIR=/home/Charles.Rayer/twatch-2020-micropython/ports/unix" -v "BOARD_DIR=" -b "build-dev" -f"-mcache-lookup-bc" variants/dev/manifest.py
Traceback (most recent call last):
File "../../tools/makemanifest.py", line 344, in
main()
File "../../tools/makemanifest.py", line 254, in main
include(input_manifest)
File "../../tools/makemanifest.py", line 51, in include
with open(manifest) as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/xxxxx/twatch-2020-micropython/ports/unix/variants/dev/manifest.py'
../../py/mkrules.mk:142 : la recette pour la cible « build-dev/frozen_content.c » a échouée
make: *** [build-dev/frozen_content.c] Erreur 1
xxxxx@LIN0141157:/twatch-2020-micropython/ports/unix$

some tricks for dowload/clone or other ?
Thank's for help and
Regards

PS : lv_mpy_examples +++

[uraich]

As I said in my previous answer, we are in a complicated situation at the moment: the ESP32 port of micropython now uses a new build system based on Espressif's idf.py command, which in turn is based on cmake. This build system does not have the facilities yet, needed to build C-modules into the micropython binary, required by lv_micropython.
If you want to just build the unix port of lv_micropython (not the t-watch version) then the easiest thing would be to download the latest lv_micropython version from github.
Then follow the build instructions in the README. This should work without any problems.
Once you have this going you can play with my twatch2020_firmware software, which is code that runs on both, the SDL version of lv_micropython (unix port) as well as the t-watch itself.
As soon as the ESP32 port of lv_micropython will have switched to cmake as well I will also update my github repository for the t-watch.

[picpic020960]

OK , compiled :

MicroPython v1.14-453-g86f3583-dirty on 2021-02-26; linux version
Use Ctrl-D to exit, Ctrl-E for paste mode

import display_driver
Running the SDL lvgl version

but confused with environment variable and PYTHONPATH / MPY_PATH.
example in lv_mpy_examples ?
thanks a lot

[uraich]

If you are running under Linux then MicroPython will look for modules under $HOME/.micropython/lib. So... I have display_driver.py and display_driver_utils.py, imagetools and a few more in this directory.
In order to make the lv_examples run you can combine header.py (found in lv_examples/src) with the example:

cat header.py lc_ex_bar.py > bar_executable.py
chmod +x bar_executable.py
./bar_executable.py
Please tell me if this works for you.

[picpic020960]

lv_examples/src ??
header.py ??
.micropython/lib ??
some adding configuration.

i will test with populate .micropython/lib , seeing with sys.path but not created.
edit : OK for num_clock.py with montserra 16 ( 48 not found)
but no u/asyncio ! (for AngainorDev repo test)
NB : num_clock (montserra 48) on t-watch = bad : digits as shadow , only the outline is visible

[uraich]

Bonjour,
Sorry I was not clear enough!
Please download https://github.com/lvgl/lv_examples
There you will find all the lvgl examples for C and MicroPython.
In its src directory you will find header.py. Have a look at it. The first line allows you to convert the script into an executable with
chmod +x whatever_script.py
Then you can run it with
./whatever_script.py
Please modify this first line and replace /opt/bin/lv_micropython with the path of your micropython executable.
Then concatenate the header file with the example you want to try:
cat header.py lv_ex_bar_1.py > ex_bar.py # for the simple bar example
chmod +x ex_bar.py
./ex_bar.py
To create an lv_micropython with uasyncio built-in please compile he unix port with
make VARIANT=dev
The binary will be called micropython-dev and will have uasyncio included
To get montserrat48 font you must enable it in lv_conf.h. You find this file in
lv_micropython/lib/lv_bindings
I will check numclock on the t-watch.

[picpic020960]

OK for monserrat 48
uasyncio : added to .micropython/lib for the moment. will test , then VARIANT maybe.
header.py : ko 'bad interpreter' but don't worry , workaround
thank's for all

[uraich]

"bad interpreter" you get if your path to lv_micropython is wrong. Make sure that /opt/bin/lv_micropython is replaced by the path to your lv_micropython binary. Then it must work!

[uraich]

Forgot: adding uasyncio to .micropython/lib may not be enough: the "standard" micropython uses a previous version of uasyncio and you might get conflicts. Not sure though!

[picpic020960]

OK the full path , with interpreter name ! work fine
for uasyncio / VARIANT , later Thanks

[picpic020960]

Bonjour Uraich,
one question : I want to hide the TAB label in tabview :
in c example : lv_tabview_set_btns_pos(tabview, LV_TABVIEW_TAB_POS_TOP/BOTTOM/LEFT/RIGHT/NONE)
how to translate LV_TABVIEW ... from c to mycropython ?
and one second : how to clear (CLS) the screen ?
thanks for help

PS : demo_printer : whaooo !

[picpic020960]

Bonjour Uraich ,
"As soon as the ESP32 port of lv_micropython will have switched to cmake as well I will also update my github repository for the t-watch."
some news ?
Regards

[uraich]

I have seen that the micropython build system now has the facilities needed to include C or C++ user modules. With this it should be possible to add the lvgl part. Maybe I will give it a try myself even though I am clearly not a cmake expert.
For the moment however I have to finish another small project.

[picpic020960]

Bonjour Uraich ,
no news about this subject ?

other subject : ftDuino32 will be good tool for twatch-2020 developement !

thanks and Regards

[uraich]

There IS news:
The dev-8.0 branch of lv_micropython now uses the cmake build system and it also uses V8 of lvgl. There are plenty of changes with respect to V7 and I am currently about trying to translate the examples from C to Python. Docs are still not online, there are still quite a few bugs and/or inconsistencies etc. So... it is really bleeding edge! A few micropython examples already work but I would say that I am still at the very beginning.
I will upload to my (uraich) github repository lv_mpy_examples_v8.