Remote LCD Nokia5510/JLX12864 with ESP32

[kagouraki]

Hello Sean,

i cant make it work. These are the steps i followed: 

following this guide : https://github.com/micropython/micropyth...orts/esp32

Code:

sudo apt-get install esptool
cd
mkdir esp
cd esp
git clone -b v4.2 --recursive https://github.com/espressif/esp-idf.git
cd esp-idf
./install.sh  
source export.sh (I know i have to rerun this command each time i quit the terminal session)
cd
mkdir micropython
cd micropython
mkdir esp32
cd esp32
git clone https://github.com/pypilot/micropython.git
cd micropython
make -C mpy-cross
cd ports/esp32
make submodules
make

It builds! So everything is ok until now. 

i uploaded with :

Code:

make erase
make deploy

It uploads and micropython is working on the esp32

Now, when i :

Code:

cd ~/Desktop
git clone https://github.com/pypilot/pypilot.git
cd pypilot-master/hat
nano Makefile #to change the MPY-CROSS path to my own
make
make upload

The .mpy files are created and uploaded to my esp32. I can see the files when i connect to the esp32's console and type :

Code:

import os
os.listdir()

when i press the reboot button on the esp32 pcb and look at the console i see import pypilot module not found in the font.py file. Ok i knew it because the ugfx module in not in the esp32 and in the font.py file here :

Code:

try:
   import micropython
   import ugfx
   #fontpath = '/_#!#_spiffs/ugfxfonts/'
   fontpath = ''
   character = ugfx.surface(64, 84, 1)

except:
   micropython = False
   import os
   from pypilot.hat.ugfx import ugfx

If it fails to load ugfx module, it thinks it is in raspberry enviroment.

---

SO NOW ! 

---

Now the fun starts. Compiling the micropython with your micropython_ugfx module.

Code:

cd ~/micropython/esp32/micropython
mkdir modules
cd modules
git clone https://github.com/pypilot/micropython_ugfx.git
mv micropython_ugfx ugfx
cd ../ports/esp32
make clean
make USER_C_MODULES=../../../modules CFLAGS_EXTRA="-DMODULE_UGFX_ENABLED=1" all

This one FAILS with 

Code:

CMake Error at /home/labcnc/Desktop/micropython/py/usermod.cmake:42 (include):
 include requested file is a directory:

   ../../../modules
Call Stack (most recent call first):
 main/CMakeLists.txt:10 (include)

I found a very usefull link : https://docs.micropython.org/en/latest/d...dules.html

In this link it says that you need to point to the .cmake file but you dont have a .cmake file in github repo. So i took the one in the example folder and altered it and copied it in:
~/micropython/esp32/micropython/modules/ugfx/micropython.cmake


This is the file:

Code:

# Create an INTERFACE library for our C module.
add_library(usermod_ugfx INTERFACE)

# Add our source files to the lib
target_sources(usermod_ugfx INTERFACE
   ${CMAKE_CURRENT_LIST_DIR}/modugfx.c
   ${CMAKE_CURRENT_LIST_DIR}/ilidriver.c
   ${CMAKE_CURRENT_LIST_DIR}/upy_wrap.cpp
   ${CMAKE_CURRENT_LIST_DIR}/ugfx.cpp
)

# Add the current directory as an include directory.
target_include_directories(usermod_ugfx INTERFACE
   ${CMAKE_CURRENT_LIST_DIR}
)

# Link our INTERFACE library to the usermod target.
target_link_libraries(usermod INTERFACE usermod_ugfx)

then again: 

Code:

cd ~/micropython/esp32/micropython/ports/esp32/
make clean
make USER_C_MODULES=../../../modules/ugfx/micropython.cmake CFLAGS_EXTRA="-DMODULE_UGFX_ENABLED=1" all

this one FAILS with that error and some warnings :

Code:

/home/labcnc/Desktop/micropython2/modules/ugfx/modugfx.c:184:35: error: 'ugfx_surface_free_obj' defined but not used [-Werror=unused-const-variable=]
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(ugfx_surface_free_obj, 0, ugfx_surface_free);
                                  ^~~~~~~~~~~~~~~~~~~~~
/home/labcnc/Desktop/micropython2/py/obj.h:351:36: note: in definition of macro 'MP_DEFINE_CONST_FUN_OBJ_KW'
    const mp_obj_fun_builtin_var_t obj_name = \
                                   ^~~~~~~~
cc1: some warnings being treated as errors

I edited the mofugfx.c file and commented out line 184 since it is not used. 
I rerun the make clean and make commants above and this time it FINISHED and i had a smile until my ears ! But lasted not so long 
I uploaded the binaries with make erase and make deploy and restarted the esp32 with no errors on the console. I tried to import ugfx in the console and ... No existing module named ugfx 
I thought that maybe the 
CFLAGS_EXTRA="-DMODULE_UGFX_ENABLED=1"
is not recognized because when i runned the make command i saw that the files where builded

So i edited the modugfx.c file again and in the end i changed the line :
MP_REGISTER_MODULE(MP_QSTR_ugfx, mp_module_ugfx, MODULE_UGFX_ENABLED);

to
MP_REGISTER_MODULE(MP_QSTR_ugfx, mp_module_ugfx, 1);

again :

Code:

make clean
make USER_C_MODULES=../../../modules/ugfx/micropython.cmake all

This time it FAILS after 
Linking CXX executable micropython.elf
with :

Code:

/home/labcnc/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: CMakeFiles/micropython.elf.dir/home/labcnc/Desktop/micropython2/modules/ugfx/modugfx.c.obj:(.literal+0x14): undefined reference to `ugfx_surface_c_free'
/home/labcnc/.espressif/tools/xtensa-esp32-elf/esp-2020r3-8.4.0/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/8.4.0/../../../../xtensa-esp32-elf/bin/ld: CMakeFiles/micropython.elf.dir/home/labcnc/Desktop/micropython2/modules/ugfx/modugfx.c.obj: in function `ugfx_display_surface_refresh':
modugfx.c:(.text+0x39b): undefined reference to `ugfx_surface_c_free'
collect2: error: ld returned 1 exit status

Now i am stucked 

I tried esp-idf 4.0.2 and 4.1.1 and 4.2
i tried the official micropython repository with the same results

Any Ideas ? 

Giorgos