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russhughes / gc9a01_mpy

Fast MicroPython driver for GC9A01 display modules written in C
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Can't compile firmware for ESP8266 #17

Closed richyguitar closed 1 year ago

richyguitar commented 1 year ago

Hello there, first of all thanks a lot for the provided code, I really appreciate your effort!

Since I am a noob when it comes to compiling in general and I am merely able to write a simple script in Python, I'd like to reach out to you. I am using a Wemos D1 mini ESP8266 board. I have put your library inside the ~/micropython/drivers folder. I am using the micropython 1.20 branch. I also tried it with the 1.19.1 branch.

I got the compiling the firmware running with the docker container using the following input and I was able to add the cexample code from micropython and successfully tested the cexample class: docker run --rm -v $HOME:$HOME -u $UID -w $PWD larsks/esp-open-sdk make -j 4 V=1 USER_C_MODULES=/home/richy/micropython/examples/usercmodule/

When I use the input provided in your README.MD, the gc9a01-code will not be put inside the firmware binary: docker run --rm -v $HOME:$HOME -u $UID -w $PWD larsks/esp-open-sdk make V=1 USER_C_MODULES=/home/richy/micropython/drivers/gc9a01_mpy-main/src/micropython.cmake all

I can compile a binary file but when I flash it to the ESP8266 I get "no module named 'gc9a01'"

>>> import gc9a01
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: no module named 'gc9a01'

So I tried adding your gc9a01 library using the following input: docker run --rm -v $HOME:$HOME -u $UID -w $PWD larsks/esp-open-sdk make V=1 USER_C_MODULES=/home/richy/micropython/drivers/gc9a01_mpy-main

I get the following error message (see the full output in the file attached):

xtensa-lx106-elf-ld: region 'iram1_0_seg' overflowed by 15976 bytes
build-GENERIC/src/gc9a01.o:(.text.gc9a01_GC9A01_draw+0x1c): undefined reference to 'lround'
build-GENERIC/src/gc9a01.o: In function 'gc9a01_GC9A01_draw':
/home/richy/micropython/drivers/gc9a01_mpy-main/src/gc9a01.c:474: undefined reference to 'lround'
/home/richy/micropython/drivers/gc9a01_mpy-main/src/gc9a01.c:476: undefined reference to 'lround'
/home/richy/micropython/drivers/gc9a01_mpy-main/src/gc9a01.c:478: undefined reference to 'lround'
/home/richy/micropython/drivers/gc9a01_mpy-main/src/gc9a01.c:489: undefined reference to 'lround'
make: *** [Makefile:231: build-GENERIC/firmware.elf] Error 1

Please advise.

Thanks a lot in advance, Richard

compile_output.txt

richyguitar commented 1 year ago

Hello there, still very much appreciate your work.

If anyone is interested and stumbles across this issue searching for a similar thing: In the meantime I ran across LVGL which includes a GC9A01-driver and a powerful library which seems to fit my needs. I was able to compile the firmware using lv_micropython (an example implementation of LVLGL bindings for micropython using version 4 of the ESP-IDF and release 7 of lv_micropython running git clone -b v4.0 --recursive https://github.com/espressif/esp-idf/ and git clone -b release/v7 https://github.com/lvgl/lv_micropython (see https://github.com/lvgl/lv_micropython/blob/master/ports/esp32/README.md#setting-up-the-toolchain-and-esp-idf and https://github.com/lvgl/lv_micropython (be aware to select the right version of lv_micropython for the right building instructions)).

Cheers