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Ubuntu Build Guide

This guide describes how to build lvgljs in Ubuntu System and running with arm MCU

Preparation

1. Arm Cross Compiler

The first step is to make sure you have arm cross compiler tools like arm-linux-gnueabihf-

2. OpenSSL

After run following script, you will see libcrypto.so, libssl.so, libssl.so.3, libcrypto.so.3 in ./build_arm, make sure copy them in your device file system

git clone https://github.com/openssl/openssl

make clean

./Configure linux-armv4 --cross-compile-prefix=arm-linux-gnueabihf- --prefix=$(pwd)/build_arm

make install

3. Curl

After run following script, you will see libcurl.so libcurl.so.4 libcurl.so.4.8.0 in ./build_arm, make sure copy them in your device file system

autoreconf

./configure --prefix=$PWD/build_arm/ --host=arm --enable-shared --enable-static --with-openssl=openssl_path/build_arm/ CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++

make

make install

4. CMAKE

sudo apt install cmake

5. Git SubModules

run following code in lvgljs project

git submodule update --init --recursive

Build lvgljs

  1. change the CMAKE_CXX_COMPILER && CMAKE_C_COMPILER path in Makefile
  2. change the CMAKE_CURL_LIB, CMAKE_CURL_INCLUDE_DIRS, CMAKE_SSL_LIB, CMAKE_CRYPTO_LIB in Makefile
  3. lvgl configuration file lv_conf.h and lv_drv_conf are located in src/deps, edit them to suit your device
  4. modify displays, device, custom_tick in ./src/engine/hal/device
make dev-arm

Running lvgljs

should now be available at ./dev_arm/lvgljs and ./dev_arm/lib, run the following script in your device

./dev_x86/lvgljs ./demo/widgets/index.js