本文主要是介绍stm32开发之threadx+lvgl组合示例记录，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
前言
- 本次使用的lcd屏驱动和触摸驱动，参考上篇博客
- 做一个示例记录
LVGL源码结构
CMakeLists配置
file(GLOB_RECURSE LVGL_SRCsrc/*.cenv_support/threadx/*.c
)target_sources( ${PROJECT_NAME}.elfPRIVATE${LVGL_SRC})target_include_directories(${PROJECT_NAME}.elfPUBLICsrc/env_support/threadx/./)
项目中使用LVGL
代码
lvgl默认配置文件
/*** @file lv_conf.h* Configuration file for v8.2.0*//** Copy this file as `lv_conf.h`* 1. simply next to the `lvgl` folder* 2. or any other places and* - define `LV_CONF_INCLUDE_SIMPLE`* - add the path as include path*//* clang-format off */
#if 1 /*Set it to "1" to enable content*/#ifndef LV_CONF_H
#define LV_CONF_H#include <stdint.h>#include "lv_user_config.h"
/*====================COLOR SETTINGS*====================*//*Color depth: 1 (1 byte per pixel), 8 (RGB332), 16 (RGB565), 32 (ARGB8888)*/
#define LV_COLOR_DEPTH 16/*Swap the 2 bytes of RGB565 color. Useful if the display has an 8-bit interface (e.g. SPI)*/
#define LV_COLOR_16_SWAP 0/*启用更复杂的绘图例程来管理屏幕透明度*Can be used if the UI is above another layer, e.g. an OSD menu or video player.*Requires `LV_COLOR_DEPTH = 32` colors and the screen's `bg_opa` should be set to non LV_OPA_COVER value*/
#define LV_COLOR_SCREEN_TRANSP 0/* Adjust color mix functions rounding. GPUs might calculate color mix (blending) differently.* 0: round down, 64: round up from x.75, 128: round up from half, 192: round up from x.25, 254: round up */
#define LV_COLOR_MIX_ROUND_OFS (LV_COLOR_DEPTH == 32 ? 0: 128)/*Images pixels with this color will not be drawn if they are chroma keyed)*/
#define LV_COLOR_CHROMA_KEY lv_color_hex(0x00ff00) /*pure green*//*=========================MEMORY SETTINGS*=========================*//*1: use custom malloc/free, 0: use the built-in `lv_mem_alloc()` and `lv_mem_free()`*/
#if LV_MEM_CUSTOM == 0
/*Size of the memory available for `lv_mem_alloc()` in bytes (>= 2kB)*/
#define LV_MEM_SIZE (48U * 1024U) /*[bytes]*//*Set an address for the memory pool instead of allocating it as a normal array. Can be in external SRAM too.*/
#define LV_MEM_ADR 0 /*0: unused*/
/*Instead of an address give a memory allocator that will be called to get a memory pool for LVGL. E.g. my_malloc*/
#if LV_MEM_ADR == 0
//#define LV_MEM_POOL_INCLUDE your_alloc_library /* Uncomment if using an external allocator*/
//#define LV_MEM_POOL_ALLOC your_alloc /* Uncomment if using an external allocator*/
#endif#else /*LV_MEM_CUSTOM*/
#endif /*LV_MEM_CUSTOM*//*Number of the intermediate memory buffer used during rendering and other internal processing mechanisms.*You will see an error log message if there wasn't enough buffers. */
#define LV_MEM_BUF_MAX_NUM 16/*Use the standard `memcpy` and `memset` instead of LVGL's own functions. (Might or might not be faster).*/
#define LV_MEMCPY_MEMSET_STD 0/*====================HAL SETTINGS*====================*//*Default display refresh period. LVG will redraw changed areas with this period time*/
#define LV_DISP_DEF_REFR_PERIOD 30 /*[ms]*//*Input device read period in milliseconds*/
#define LV_INDEV_DEF_READ_PERIOD 30 /*[ms]*//*Default Dot Per Inch. Used to initialize default sizes such as widgets sized, style paddings.*(Not so important, you can adjust it to modify default sizes and spaces)*/
#define LV_DPI_DEF 130 /*[px/inch]*//*=======================* FEATURE CONFIGURATION*=======================*//*-------------* Drawing*-----------*//*Enable complex draw engine.*Required to draw shadow, gradient, rounded corners, circles, arc, skew lines, image transformations or any masks*/
#define LV_DRAW_COMPLEX 1
#if LV_DRAW_COMPLEX != 0/*Allow buffering some shadow calculation.
*LV_SHADOW_CACHE_SIZE is the max. shadow size to buffer, where shadow size is `shadow_width + radius`
*Caching has LV_SHADOW_CACHE_SIZE^2 RAM cost*/
#define LV_SHADOW_CACHE_SIZE 0/* Set number of maximally cached circle data.
* The circumference of 1/4 circle are saved for anti-aliasing
* radius * 4 bytes are used per circle (the most often used radiuses are saved)
* 0: to disable caching */
#define LV_CIRCLE_CACHE_SIZE 4
#endif /*LV_DRAW_COMPLEX*//*Default image cache size. Image caching keeps the images opened.*If only the built-in image formats are used there is no real advantage of caching. (I.e. if no new image decoder is added)*With complex image decoders (e.g. PNG or JPG) caching can save the continuous open/decode of images.*However the opened images might consume additional RAM.*0: to disable caching*/
#define LV_IMG_CACHE_DEF_SIZE 0/*Number of stops allowed per gradient. Increase this to allow more stops.*This adds (sizeof(lv_color_t) + 1) bytes per additional stop*/
#define LV_GRADIENT_MAX_STOPS 2/*Default gradient buffer size.*When LVGL calculates the gradient "maps" it can save them into a cache to avoid calculating them again.*LV_GRAD_CACHE_DEF_SIZE sets the size of this cache in bytes.*If the cache is too small the map will be allocated only while it's required for the drawing.*0 mean no caching.*/
#define LV_GRAD_CACHE_DEF_SIZE 0/*Allow dithering the gradients (to achieve visual smooth color gradients on limited color depth display)*LV_DITHER_GRADIENT implies allocating one or two more lines of the object's rendering surface*The increase in memory consumption is (32 bits * object width) plus 24 bits * object width if using error diffusion */
#define LV_DITHER_GRADIENT 0
#if LV_DITHER_GRADIENT
/*Add support for error diffusion dithering.*Error diffusion dithering gets a much better visual result, but implies more CPU consumption and memory when drawing.*The increase in memory consumption is (24 bits * object's width)*/
#define LV_DITHER_ERROR_DIFFUSION 0
#endif/*Maximum buffer size to allocate for rotation.*Only used if software rotation is enabled in the display driver.*/
#define LV_DISP_ROT_MAX_BUF (10*1024)/*-------------* GPU*-----------*//*Use STM32's DMA2D (aka Chrom Art) GPU*/
#define LV_USE_GPU_STM32_DMA2D 0
#if LV_USE_GPU_STM32_DMA2D
/*Must be defined to include path of CMSIS header of target processor
e.g. "stm32f769xx.h" or "stm32f429xx.h"*/
#define LV_GPU_DMA2D_CMSIS_INCLUDE
#endif/*Use NXP's PXP GPU iMX RTxxx platforms*/
#define LV_USE_GPU_NXP_PXP 0
#if LV_USE_GPU_NXP_PXP
/*1: Add default bare metal and FreeRTOS interrupt handling routines for PXP (lv_gpu_nxp_pxp_osa.c)
* and call lv_gpu_nxp_pxp_init() automatically during lv_init(). Note that symbol SDK_OS_FREE_RTOS
* has to be defined in order to use FreeRTOS OSA, otherwise bare-metal implementation is selected.
*0: lv_gpu_nxp_pxp_init() has to be called manually before lv_init()
*/
#define LV_USE_GPU_NXP_PXP_AUTO_INIT 0
#endif/*Use NXP's VG-Lite GPU iMX RTxxx platforms*/
#define LV_USE_GPU_NXP_VG_LITE 0/*Use SDL renderer API*/
#define LV_USE_GPU_SDL 0
#if LV_USE_GPU_SDL
#define LV_GPU_SDL_INCLUDE_PATH <SDL2/SDL.h>
/*Texture cache size, 8MB by default*/
#define LV_GPU_SDL_LRU_SIZE (1024 * 1024 * 8)
/*Custom blend mode for mask drawing, disable if you need to link with older SDL2 lib*/
#define LV_GPU_SDL_CUSTOM_BLEND_MODE (SDL_VERSION_ATLEAST(2, 0, 6))
#endif/*-------------* Logging*-----------*//*Enable the log module*/
#define LV_USE_LOG 0
#if LV_USE_LOG/*How important log should be added:
*LV_LOG_LEVEL_TRACE A lot of logs to give detailed information
*LV_LOG_LEVEL_INFO Log important events
*LV_LOG_LEVEL_WARN Log if something unwanted happened but didn't cause a problem
*LV_LOG_LEVEL_ERROR Only critical issue, when the system may fail
*LV_LOG_LEVEL_USER Only logs added by the user
*LV_LOG_LEVEL_NONE Do not log anything*/
#define LV_LOG_LEVEL LV_LOG_LEVEL_WARN/*1: Print the log with 'printf';
*0: User need to register a callback with `lv_log_register_print_cb()`*/
#define LV_LOG_PRINTF 0/*Enable/disable LV_LOG_TRACE in modules that produces a huge number of logs*/
#define LV_LOG_TRACE_MEM 1
#define LV_LOG_TRACE_TIMER 1
#define LV_LOG_TRACE_INDEV 1
#define LV_LOG_TRACE_DISP_REFR 1
#define LV_LOG_TRACE_EVENT 1
#define LV_LOG_TRACE_OBJ_CREATE 1
#define LV_LOG_TRACE_LAYOUT 1
#define LV_LOG_TRACE_ANIM 1#endif /*LV_USE_LOG*//*-------------* Asserts*-----------*//*Enable asserts if an operation is failed or an invalid data is found.*If LV_USE_LOG is enabled an error message will be printed on failure*/
#define LV_USE_ASSERT_NULL 1 /*Check if the parameter is NULL. (Very fast, recommended)*/
#define LV_USE_ASSERT_MALLOC 1 /*Checks is the memory is successfully allocated or no. (Very fast, recommended)*/
#define LV_USE_ASSERT_STYLE 0 /*Check if the styles are properly initialized. (Very fast, recommended)*/
#define LV_USE_ASSERT_MEM_INTEGRITY 0 /*Check the integrity of `lv_mem` after critical operations. (Slow)*/
#define LV_USE_ASSERT_OBJ 0 /*Check the object's type and existence (e.g. not deleted). (Slow)*//*Add a custom handler when assert happens e.g. to restart the MCU*//*-------------* Others*-----------*//*1: Show CPU usage and FPS count*/
#define LV_USE_PERF_MONITOR 0
#if LV_USE_PERF_MONITOR
#define LV_USE_PERF_MONITOR_POS LV_ALIGN_BOTTOM_RIGHT
#endif/*1: Show the used memory and the memory fragmentation* Requires LV_MEM_CUSTOM = 0*/
#define LV_USE_MEM_MONITOR 0
#if LV_USE_MEM_MONITOR
#define LV_USE_MEM_MONITOR_POS LV_ALIGN_BOTTOM_LEFT
#endif/*1: Draw random colored rectangles over the redrawn areas*/
#define LV_USE_REFR_DEBUG 0/*Change the built in (v)snprintf functions*/
#define LV_SPRINTF_CUSTOM 0
#if LV_SPRINTF_CUSTOM
#define LV_SPRINTF_INCLUDE <stdio.h>
#define lv_snprintf snprintf
#define lv_vsnprintf vsnprintf
#else /*LV_SPRINTF_CUSTOM*/
#define LV_SPRINTF_USE_FLOAT 0
#endif /*LV_SPRINTF_CUSTOM*/#define LV_USE_USER_DATA 1/*Garbage Collector settings*Used if lvgl is bound to higher level language and the memory is managed by that language*/
#define LV_ENABLE_GC 0
#if LV_ENABLE_GC != 0
#define LV_GC_INCLUDE "gc.h" /*Include Garbage Collector related things*/
#endif /*LV_ENABLE_GC*//*=====================* COMPILER SETTINGS*====================*//*For big endian systems set to 1*/
#define LV_BIG_ENDIAN_SYSTEM 0/*Define a custom attribute to `lv_tick_inc` function*/
#define LV_ATTRIBUTE_TICK_INC/*Define a custom attribute to `lv_timer_handler` function*/
#define LV_ATTRIBUTE_TIMER_HANDLER/*Define a custom attribute to `lv_disp_flush_ready` function*/
#define LV_ATTRIBUTE_FLUSH_READY/*Required alignment size for buffers*/
#define LV_ATTRIBUTE_MEM_ALIGN_SIZE 1/*Will be added where memories needs to be aligned (with -Os data might not be aligned to boundary by default).* E.g. __attribute__((aligned(4)))*//*Attribute to mark large constant arrays for example font's bitmaps*/
#define LV_ATTRIBUTE_LARGE_CONST/*Compiler prefix for a big array declaration in RAM*/
#define LV_ATTRIBUTE_LARGE_RAM_ARRAY/*Place performance critical functions into a faster memory (e.g RAM)*/
#define LV_ATTRIBUTE_FAST_MEM/*Prefix variables that are used in GPU accelerated operations, often these need to be placed in RAM sections that are DMA accessible*/
#define LV_ATTRIBUTE_DMA/*Export integer constant to binding. This macro is used with constants in the form of LV_<CONST> that*should also appear on LVGL binding API such as Micropython.*/
#define LV_EXPORT_CONST_INT(int_value) struct _silence_gcc_warning /*The default value just prevents GCC warning*//*Extend the default -32k..32k coordinate range to -4M..4M by using int32_t for coordinates instead of int16_t*/
#define LV_USE_LARGE_COORD 0/*==================* FONT USAGE*===================*//*Montserrat fonts with ASCII range and some symbols using bpp = 4*https://fonts.google.com/specimen/Montserrat*/
#define LV_FONT_MONTSERRAT_8 0
#define LV_FONT_MONTSERRAT_10 0
#define LV_FONT_MONTSERRAT_12 0
#define LV_FONT_MONTSERRAT_14 1
#define LV_FONT_MONTSERRAT_16 1
#define LV_FONT_MONTSERRAT_18 0
#define LV_FONT_MONTSERRAT_20 0
#define LV_FONT_MONTSERRAT_22 0
#define LV_FONT_MONTSERRAT_24 0
#define LV_FONT_MONTSERRAT_26 0
#define LV_FONT_MONTSERRAT_28 0
#define LV_FONT_MONTSERRAT_30 0
#define LV_FONT_MONTSERRAT_32 0
#define LV_FONT_MONTSERRAT_34 0
#define LV_FONT_MONTSERRAT_36 0
#define LV_FONT_MONTSERRAT_38 0
#define LV_FONT_MONTSERRAT_40 0
#define LV_FONT_MONTSERRAT_42 0
#define LV_FONT_MONTSERRAT_44 0
#define LV_FONT_MONTSERRAT_46 0
#define LV_FONT_MONTSERRAT_48 0/*Demonstrate special features*/
#define LV_FONT_MONTSERRAT_12_SUBPX 0
#define LV_FONT_MONTSERRAT_28_COMPRESSED 0 /*bpp = 3*/
#define LV_FONT_DEJAVU_16_PERSIAN_HEBREW 0 /*Hebrew, Arabic, Persian letters and all their forms*/
#define LV_FONT_SIMSUN_16_CJK 0 /*1000 most common CJK radicals*//*Pixel perfect monospace fonts*/
#define LV_FONT_UNSCII_8 0
#define LV_FONT_UNSCII_16 0/*Optionally declare custom fonts here.*You can use these fonts as default font too and they will be available globally.*E.g. #define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(my_font_1) LV_FONT_DECLARE(my_font_2)*/
#define LV_FONT_CUSTOM_DECLARE/*Always set a default font*/
#define LV_FONT_DEFAULT &lv_font_montserrat_14/*Enable handling large font and/or fonts with a lot of characters.*The limit depends on the font size, font face and bpp.*Compiler error will be triggered if a font needs it.*/
#define LV_FONT_FMT_TXT_LARGE 0/*Enables/disables support for compressed fonts.*/
#define LV_USE_FONT_COMPRESSED 0/*Enable subpixel rendering*/
#define LV_USE_FONT_SUBPX 0
#if LV_USE_FONT_SUBPX
/*Set the pixel order of the display. Physical order of RGB channels. Doesn't matter with "normal" fonts.*/
#define LV_FONT_SUBPX_BGR 0 /*0: RGB; 1:BGR order*/
#endif/*=================* TEXT SETTINGS*=================*//*** Select a character encoding for strings.* Your IDE or editor should have the same character encoding* - LV_TXT_ENC_UTF8* - LV_TXT_ENC_ASCII*/
#define LV_TXT_ENC LV_TXT_ENC_UTF8/*Can break (wrap) texts on these chars*/
#define LV_TXT_BREAK_CHARS " ,.;:-_"/*If a word is at least this long, will break wherever "prettiest"*To disable, set to a value <= 0*/
#define LV_TXT_LINE_BREAK_LONG_LEN 0/*Minimum number of characters in a long word to put on a line before a break.*Depends on LV_TXT_LINE_BREAK_LONG_LEN.*/
#define LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN 3/*Minimum number of characters in a long word to put on a line after a break.*Depends on LV_TXT_LINE_BREAK_LONG_LEN.*/
#define LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN 3/*The control character to use for signalling text recoloring.*/
#define LV_TXT_COLOR_CMD "#"/*Support bidirectional texts. Allows mixing Left-to-Right and Right-to-Left texts.*The direction will be processed according to the Unicode Bidirectional Algorithm:*https://www.w3.org/International/articles/inline-bidi-markup/uba-basics*/
#define LV_USE_BIDI 0
#if LV_USE_BIDI
/*Set the default direction. Supported values:
*`LV_BASE_DIR_LTR` Left-to-Right
*`LV_BASE_DIR_RTL` Right-to-Left
*`LV_BASE_DIR_AUTO` detect texts base direction*/
#define LV_BIDI_BASE_DIR_DEF LV_BASE_DIR_AUTO
#endif/*Enable Arabic/Persian processing*In these languages characters should be replaced with an other form based on their position in the text*/
#define LV_USE_ARABIC_PERSIAN_CHARS 0/*==================* WIDGET USAGE*================*//*Documentation of the widgets: https://docs.lvgl.io/latest/en/html/widgets/index.html*/#define LV_USE_ARC 1#define LV_USE_ANIMIMG 1#define LV_USE_BAR 1#define LV_USE_BTN 1#define LV_USE_BTNMATRIX 1#define LV_USE_CANVAS 1#define LV_USE_CHECKBOX 1#define LV_USE_DROPDOWN 1 /*Requires: lv_label*/#define LV_USE_IMG 1 /*Requires: lv_label*/#define LV_USE_LABEL 1
#if LV_USE_LABEL
#define LV_LABEL_TEXT_SELECTION 1 /*Enable selecting text of the label*/
#define LV_LABEL_LONG_TXT_HINT 1 /*Store some extra info in labels to speed up drawing of very long texts*/
#endif#define LV_USE_LINE 1#define LV_USE_ROLLER 1 /*Requires: lv_label*/
#if LV_USE_ROLLER
#define LV_ROLLER_INF_PAGES 7 /*Number of extra "pages" when the roller is infinite*/
#endif#define LV_USE_SLIDER 1 /*Requires: lv_bar*/#define LV_USE_SWITCH 1#define LV_USE_TEXTAREA 1 /*Requires: lv_label*/
#if LV_USE_TEXTAREA != 0
#define LV_TEXTAREA_DEF_PWD_SHOW_TIME 1500 /*ms*/
#endif#define LV_USE_TABLE 1/*==================* EXTRA COMPONENTS*==================*//*-----------* Widgets*----------*/
#define LV_USE_CALENDAR 1
#if LV_USE_CALENDAR
#define LV_CALENDAR_WEEK_STARTS_MONDAY 0
#if LV_CALENDAR_WEEK_STARTS_MONDAY
#define LV_CALENDAR_DEFAULT_DAY_NAMES {"Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"}
#else
#define LV_CALENDAR_DEFAULT_DAY_NAMES {"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"}
#endif#define LV_CALENDAR_DEFAULT_MONTH_NAMES {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}
#define LV_USE_CALENDAR_HEADER_ARROW 1
#define LV_USE_CALENDAR_HEADER_DROPDOWN 1
#endif /*LV_USE_CALENDAR*/#define LV_USE_CHART 1#define LV_USE_COLORWHEEL 1#define LV_USE_IMGBTN 1#define LV_USE_KEYBOARD 1#define LV_USE_LED 1#define LV_USE_LIST 1#define LV_USE_MENU 1#define LV_USE_METER 1#define LV_USE_MSGBOX 1#define LV_USE_SPINBOX 1#define LV_USE_SPINNER 1#define LV_USE_TABVIEW 1#define LV_USE_TILEVIEW 1#define LV_USE_WIN 1#define LV_USE_SPAN 1
#if LV_USE_SPAN
/*A line text can contain maximum num of span descriptor */
#define LV_SPAN_SNIPPET_STACK_SIZE 64
#endif/*-----------* Themes*----------*//*A simple, impressive and very complete theme*/
#define LV_USE_THEME_DEFAULT 1
#if LV_USE_THEME_DEFAULT/*0: Light mode; 1: Dark mode*/
#define LV_THEME_DEFAULT_DARK 0/*1: Enable grow on press*/
#define LV_THEME_DEFAULT_GROW 1/*Default transition time in [ms]*/
#define LV_THEME_DEFAULT_TRANSITION_TIME 80
#endif /*LV_USE_THEME_DEFAULT*//*A very simple theme that is a good starting point for a custom theme*/
#define LV_USE_THEME_BASIC 1/*A theme designed for monochrome displays*/
#define LV_USE_THEME_MONO 1/*-----------* Layouts*----------*//*A layout similar to Flexbox in CSS.*/
#define LV_USE_FLEX 1/*A layout similar to Grid in CSS.*/
#define LV_USE_GRID 1/*---------------------* 3rd party libraries*--------------------*//*File system interfaces for common APIs *//*API for fopen, fread, etc*/
#define LV_USE_FS_STDIO 0
#if LV_USE_FS_STDIO
#define LV_FS_STDIO_LETTER '\0' /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
#define LV_FS_STDIO_PATH "" /*Set the working directory. File/directory paths will be appended to it.*/
#define LV_FS_STDIO_CACHE_SIZE 0 /*>0 to cache this number of bytes in lv_fs_read()*/
#endif/*API for open, read, etc*/
#define LV_USE_FS_POSIX 0
#if LV_USE_FS_POSIX
#define LV_FS_POSIX_LETTER '\0' /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
#define LV_FS_POSIX_PATH "" /*Set the working directory. File/directory paths will be appended to it.*/
#define LV_FS_POSIX_CACHE_SIZE 0 /*>0 to cache this number of bytes in lv_fs_read()*/
#endif/*API for CreateFile, ReadFile, etc*/
#define LV_USE_FS_WIN32 0
#if LV_USE_FS_WIN32
#define LV_FS_WIN32_LETTER '\0' /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
#define LV_FS_WIN32_PATH "" /*Set the working directory. File/directory paths will be appended to it.*/
#define LV_FS_WIN32_CACHE_SIZE 0 /*>0 to cache this number of bytes in lv_fs_read()*/
#endif/*API for FATFS (needs to be added separately). Uses f_open, f_read, etc*/
#define LV_USE_FS_FATFS 0
#if LV_USE_FS_FATFS
#define LV_FS_FATFS_LETTER '\0' /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
#define LV_FS_FATFS_CACHE_SIZE 0 /*>0 to cache this number of bytes in lv_fs_read()*/
#endif/*PNG decoder library*/
#define LV_USE_PNG 0/*BMP decoder library*/
#define LV_USE_BMP 0/* JPG + split JPG decoder library.* Split JPG is a custom format optimized for embedded systems. */
#define LV_USE_SJPG 0/*GIF decoder library*/
#define LV_USE_GIF 0/*QR code library*/
#define LV_USE_QRCODE 0/*FreeType library*/
#define LV_USE_FREETYPE 0
#if LV_USE_FREETYPE
/*Memory used by FreeType to cache characters [bytes] (-1: no caching)*/
#define LV_FREETYPE_CACHE_SIZE (16 * 1024)
#if LV_FREETYPE_CACHE_SIZE >= 0/* 1: bitmap cache use the sbit cache, 0:bitmap cache use the image cache. *//* sbit cache:it is much more memory efficient for small bitmaps(font size < 256) *//* if font size >= 256, must be configured as image cache */
#define LV_FREETYPE_SBIT_CACHE 0/* Maximum number of opened FT_Face/FT_Size objects managed by this cache instance. *//* (0:use system defaults) */
#define LV_FREETYPE_CACHE_FT_FACES 0
#define LV_FREETYPE_CACHE_FT_SIZES 0
#endif
#endif/*Rlottie library*/
#define LV_USE_RLOTTIE 0/*FFmpeg library for image decoding and playing videos*Supports all major image formats so do not enable other image decoder with it*/
#define LV_USE_FFMPEG 0
#if LV_USE_FFMPEG
/*Dump input information to stderr*/
#define LV_FFMPEG_AV_DUMP_FORMAT 0
#endif/*-----------* Others*----------*//*1: Enable API to take snapshot for object*/
#define LV_USE_SNAPSHOT 0/*1: Enable Monkey test*/
#define LV_USE_MONKEY 0/*1: Enable grid navigation*/
#define LV_USE_GRIDNAV 0/*==================
* EXAMPLES
*==================*//*Enable the examples to be built with the library*/
#define LV_BUILD_EXAMPLES 1/*===================* DEMO USAGE====================*//*Show some widget. It might be required to increase `LV_MEM_SIZE` */
#define LV_USE_DEMO_WIDGETS 0
#if LV_USE_DEMO_WIDGETS
#define LV_DEMO_WIDGETS_SLIDESHOW 0
#endif/*Demonstrate the usage of encoder and keyboard*/
#define LV_USE_DEMO_KEYPAD_AND_ENCODER 0/*Benchmark your system*/
#define LV_USE_DEMO_BENCHMARK 0/*Stress test for LVGL*/
#define LV_USE_DEMO_STRESS 0/*Music player demo*/
#define LV_USE_DEMO_MUSIC 0
#if LV_USE_DEMO_MUSIC
# define LV_DEMO_MUSIC_SQUARE 0
# define LV_DEMO_MUSIC_LANDSCAPE 0
# define LV_DEMO_MUSIC_ROUND 0
# define LV_DEMO_MUSIC_LARGE 0
# define LV_DEMO_MUSIC_AUTO_PLAY 0
#endif/*--END OF LV_CONF_H--*/#endif /*LV_CONF_H*/#endif /*End of "Content enable"*/lvgl自定义配置文件
/** Copyright (c) 2024-2024，shchl** SPDX-License-Identifier: Apache-2.0** Change Logs:* Date Author Notes* 2024-4-22 shchl first version*/#ifndef STM32_PROJECT_LV_USER_CONFIG_H
#define STM32_PROJECT_LV_USER_CONFIG_H#define LV_USER_INCLUDE "includes.h"
#include LV_USER_INCLUDE/*=========================MEMORY SETTINGS(使用的是外部sram)*=========================*/# define LV_MEM_CUSTOM 1
# define LV_MEM_CUSTOM_INCLUDE LV_USER_INCLUDE
# define LV_MEM_CUSTOM_ALLOC bsp_malloc
# define LV_MEM_CUSTOM_FREE bsp_free
# define LV_MEM_CUSTOM_REALLOC bsp_realloc/*====================HAL SETTINGS*====================*/#define LV_TICK_CUSTOM 1
#define LV_TICK_CUSTOM_INCLUDE LV_USER_INCLUDE
#define LV_TICK_CUSTOM_SYS_TIME_EXPR (tx_time_get()) /*Expression evaluating to current system time in ms*//*=======================* FEATURE CONFIGURATION*=======================*//*-------------* Logging*-----------*/#ifdef PKG_LVGL_ENABLE_LOG
# define LV_USE_LOG 1
#else
# define LV_USE_LOG 0
#endif/*-------------* Asserts*-----------*/#define LV_ASSERT_HANDLER_INCLUDE LV_USER_INCLUDE
#define LV_ASSERT_HANDLER ASSERT(0);/*-------------* Others*-----------*//*=====================* COMPILER SETTINGS*====================*/#ifdef ARCH_CPU_BIG_ENDIAN
# define LV_BIG_ENDIAN_SYSTEM 1
#else
# define LV_BIG_ENDIAN_SYSTEM 0
#endif#define LV_ATTRIBUTE_MEM_ALIGN APP_ALIGN(4)/*==================
* EXAMPLES
*==================*/#ifdef PKG_USING_LVGL_EXAMPLES
# define LV_BUILD_EXAMPLES 1
#endif
#endif //STM32_PROJECT_LV_USER_CONFIG_H显示设备驱动(根据官方提供的模板，编写对应的驱动)
/*** @file lv_port_disp_templ.c**//*Copy this file as "lv_port_disp.c" and set this value to "1" to enable content*/
#if 1/********************** INCLUDES*********************/
#include "lv_port_disp.h"
#include "bsp_tft_lcd_hx8357d.h"/********************** DEFINES*********************/
#define MY_DISP_HOR_RES 320
#define MY_DISP_VER_RES 480
/*********************** TYPEDEFS**********************//*********************** STATIC PROTOTYPES**********************/
static void disp_init(void);static void disp_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p);
//static void gpu_fill(lv_disp_drv_t * disp_drv, lv_color_t * dest_buf, lv_coord_t dest_width,
// const lv_area_t * fill_area, lv_color_t color);/*********************** STATIC VARIABLES**********************//*********************** MACROS**********************//*********************** GLOBAL FUNCTIONS**********************/void lv_port_disp_init(void) {/*-------------------------* Initialize your display* -----------------------*/disp_init();/*-----------------------------*为绘图创建缓冲区*----------------------------*//*** LVGL requires a buffer where it internally draws the widgets.* Later this buffer will passed to your display driver's `flush_cb` to copy its content to your display.* The buffer has to be greater than 1 display row** There are 3 buffering configurations:* 1. Create ONE buffer:* LVGL will draw the display's content here and writes it to your display** 2. Create TWO buffer:* LVGL will draw the display's content to a buffer and writes it your display.* You should use DMA to write the buffer's content to the display.* It will enable LVGL to draw the next part of the screen to the other buffer while* the data is being sent form the first buffer. It makes rendering and flushing parallel.** 3. Double buffering* Set 2 screens sized buffers and set disp_drv.full_refresh = 1.* This way LVGL will always provide the whole rendered screen in `flush_cb`* and you only need to change the frame buffer's address.*//* Example for 1) */static lv_disp_draw_buf_t draw_buf_dsc_1;static lv_color_t buf_1[MY_DISP_HOR_RES * 10]; /*A buffer for 10 rows*/lv_disp_draw_buf_init(&draw_buf_dsc_1, buf_1, NULL, MY_DISP_HOR_RES * 10); /*Initialize the display buffer*//* Example for 2) */
// static lv_disp_draw_buf_t draw_buf_dsc_2;
// static lv_color_t buf_2_1[MY_DISP_HOR_RES * 10]; /*A buffer for 10 rows*/
// static lv_color_t buf_2_2[MY_DISP_HOR_RES * 10]; /*An other buffer for 10 rows*/
// lv_disp_draw_buf_init(&draw_buf_dsc_2, buf_2_1, buf_2_2, MY_DISP_HOR_RES * 10); /*Initialize the display buffer*/
//
// /* Example for 3) also set disp_drv.full_refresh = 1 below*/
// static lv_disp_draw_buf_t draw_buf_dsc_3;
// static lv_color_t buf_3_1[MY_DISP_HOR_RES * MY_DISP_VER_RES]; /*A screen sized buffer*/
// static lv_color_t buf_3_2[MY_DISP_HOR_RES * MY_DISP_VER_RES]; /*Another screen sized buffer*/
// lv_disp_draw_buf_init(&draw_buf_dsc_3, buf_3_1, buf_3_2, MY_DISP_VER_RES * LV_VER_RES_MAX); /*Initialize the display buffer*//*-----------------------------------* 在 LVGL 中注册显示器*----------------------------------*/static lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/lv_disp_drv_init(&disp_drv); /*Basic initialization*//*设置访问显示器的功能*//*设置显示器的分辨率*/disp_drv.hor_res = MY_DISP_HOR_RES;disp_drv.ver_res = MY_DISP_VER_RES;/*用于将缓冲区的内容复制到显示器*/disp_drv.flush_cb = disp_flush;/*设置显示增益r*/disp_drv.draw_buf = &draw_buf_dsc_1;/*Required for Example 3)*///disp_drv.full_refresh = 1/* 如果您有 GPU，请用颜色填充内存数组。请注意，在 lv_conf.h 中，您可以启用 LVGL 中内置支持的 GPU。* 但是，如果您有其他 GPU，则可以与此回调一起使用.*///disp_drv.gpu_fill_cb = gpu_fill;/*Finally register the driver*/lv_disp_drv_register(&disp_drv);
}/*********************** STATIC FUNCTIONS**********************//*初始化显示器和所需的外围设备.*/
static void disp_init(void) {/*You code here*/
// bsp_InitTftLCD(); 不在此处做初始化
}/* 将内部缓冲区的内容冲洗到显示屏上的特定区域 您可以使用DMA或任何硬件加速在后台执行此操作，* 但是 'lv_disp_flush_ready（）' 完成后必须调用。*/
static void disp_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p) {/*最简单的情况（但也是最慢的）将所有像素一个接一个地放在屏幕上*/int32_t x;int32_t y;for (y = area->y1; y <= area->y2; y++) {for (x = area->x1; x <= area->x2; x++) {/*Put a pixel to the display. For example:*//*put_px(x, y, *color_p)*/// 画点函数lcd_tft_draw_point_ex(x, y, color_p->full);color_p++;}}/*IMPORTANT!!!*通知图形库您已准备好进行刷新*/lv_disp_flush_ready(disp_drv);
}/*OPTIONAL: GPU INTERFACE*//*If your MCU has hardware accelerator (GPU) then you can use it to fill a memory with a color*/
//static void gpu_fill(lv_disp_drv_t * disp_drv, lv_color_t * dest_buf, lv_coord_t dest_width,
// const lv_area_t * fill_area, lv_color_t color)
//{
// /*It's an example code which should be done by your GPU*/
// int32_t x, y;
// dest_buf += dest_width * fill_area->y1; /*Go to the first line*/
//
// for(y = fill_area->y1; y <= fill_area->y2; y++) {
// for(x = fill_area->x1; x <= fill_area->x2; x++) {
// dest_buf[x] = color;
// }
// dest_buf+=dest_width; /*Go to the next line*/
// }
//}#else /*Enable this file at the top*//*This dummy typedef exists purely to silence -Wpedantic.*/
typedef int keep_pedantic_happy;
#endiflvgl输入设备驱动(触摸)
/*** @file lv_port_indev_templ.c**//*Copy this file as "lv_port_indev.c" and set this value to "1" to enable content*/
#if 1/********************** INCLUDES*********************/
#include "lv_port_indev.h"
#include "bsp_touch.h"
/********************** DEFINES*********************//*********************** TYPEDEFS**********************//*********************** STATIC PROTOTYPES**********************/static void touchpad_init(void);static void touchpad_read(lv_indev_drv_t *indev_drv, lv_indev_data_t *data);static bool touchpad_is_pressed(void);static void touchpad_get_xy(lv_coord_t *x, lv_coord_t *y);/*********************** STATIC VARIABLES**********************/
lv_indev_t *indev_touchpad;static int32_t encoder_diff;
static lv_indev_state_t encoder_state;/*********************** MACROS**********************//*********************** GLOBAL FUNCTIONS**********************/void lv_port_indev_init(void) {/*** Here you will find example implementation of input devices supported by LittelvGL:* - Touchpad* - Mouse (with cursor support)* - Keypad (supports GUI usage only with key)* - Encoder (supports GUI usage only with: left, right, push)* - Button (external buttons to press points on the screen)** The `..._read()` function are only examples.* You should shape them according to your hardware*/static lv_indev_drv_t indev_drv;/*------------------* Touchpad* -----------------*//*Initialize your touchpad if you have*/touchpad_init();/*Register a touchpad input device*/lv_indev_drv_init(&indev_drv);indev_drv.type = LV_INDEV_TYPE_POINTER;indev_drv.read_cb = touchpad_read;indev_touchpad = lv_indev_drv_register(&indev_drv);}/*********************** STATIC FUNCTIONS**********************//*------------------* Touchpad* -----------------*/
//extern uint8_t TP_Read_Adjust_Data(void);/*Initialize your touchpad*/
static void touchpad_init(void) {/*Your code comes here*/bsp_InitLcdTouch();g_lcd_touch.xfac = -0.084720f;g_lcd_touch.yfac = -0.12764f;g_lcd_touch.xoff = 331;g_lcd_touch.yoff = 496;/*读取校正信息(如果需要的话,这里是在触摸初始化完成，根据实际测试情况设置的默认值,所以就没有用到校准,* 这种基本要适用于对精准读要求不高的情况下，可以这样配置)*/
// if (TP_Read_Adjust_Data() == 0) {
// lcd_touch_adjust();/*重新校验屏幕*/
//
//
// TP_Save_Adjust_Data();
// }}/*Will be called by the library to read the touchpad*/
static void touchpad_read(lv_indev_drv_t *indev_drv, lv_indev_data_t *data) {static lv_coord_t last_x = 0;static lv_coord_t last_y = 0;/*Save the pressed coordinates and the state*/if (touchpad_is_pressed()) {touchpad_get_xy(&last_x, &last_y);data->state = LV_INDEV_STATE_PR;} else {data->state = LV_INDEV_STATE_REL;}/*Set the last pressed coordinates*/data->point.x = last_x;data->point.y = last_y;
}/*Return true is the touchpad is pressed*/
static bool touchpad_is_pressed(void) {/*扫描*/lcd_touch_scan(0);if (g_lcd_touch.sta & TP_PRES_DOWN) {return true;}return false;
}/*Get the x and y coordinates if the touchpad is pressed*/
static void touchpad_get_xy(lv_coord_t *x, lv_coord_t *y) {/*将坐标点赋值给调用方*/(*x) = (lv_coord_t) g_lcd_touch.x[0];(*y) = (lv_coord_t) g_lcd_touch.y[0];
}/*This dummy typedef exists purely to silence -Wpedantic.*/
typedef int keep_pedantic_happy;
#endifLVGL组件定义代码(组件初始化)
/** Copyright (c) 2024-2024，shchl** SPDX-License-Identifier: Apache-2.0** Change Logs:* Date Author Notes* 2024-4-22 shchl first version*/
#include "includes.h"#if 1#include "lvgl.h"
#include "lv_port_disp.h"
#include "lv_port_indev.h"
/*
*******************************************************************************************************
* 外部引入变量
*******************************************************************************************************
*//*
*******************************************************************************************************
* 变量
*******************************************************************************************************
*//*
*********************************************************************************************************
* 静态全局变量
*********************************************************************************************************
*//*
*********************************************************************************************************
* 函数声明
*********************************************************************************************************
*//*
*********************************************************************************************************
* 外部函数
*********************************************************************************************************
*/
#if LV_USE_LOG
static void lv_rt_log(const char *buf)
{printf(buf);
}
#endifint gui_lvgl_application_define(void) {
#if LV_USE_LOGlv_log_register_print_cb(lv_rt_log);
#endiflv_init();lv_port_disp_init();lv_port_indev_init();return FX_SUCCESS;
}TX_APP_DEFINE_EXPORT(gui_lvgl_application_define); /*首先创建模块应用*/
/*
*********************************************************************************************************
* 内部函数
*********************************************************************************************************
*/#endif
创建lvgl的GUI任务线程
/** Copyright (c) 2024-2024，shchl** SPDX-License-Identifier: Apache-2.0** Change Logs:* Date Author Notes* 2024-4-20 shchl first version*/
#include "includes.h"
#include "lv_api_map.h"#if 1#define APP_TASK_GUI_LVGL_PRIO 15
#define APP_TASK_GUI_LVGL_STK_SIZE 4096/*
*******************************************************************************************************
* 外部引入变量
*******************************************************************************************************
*//*
*******************************************************************************************************
* 变量
*******************************************************************************************************
*/
TX_THREAD gui_lvgl_thread;
VOID *gui_thread_stack_area;
/*
*********************************************************************************************************
* 静态全局变量
*********************************************************************************************************
*//*
*********************************************************************************************************
* 函数声明
*********************************************************************************************************
*/
static VOID gui_lvgl_thread_entry(ULONG input);/*
*********************************************************************************************************
* 外部函数
*********************************************************************************************************
*/
/*** @brief gui lvgl 任务线程创建*/
int tx_task_gui_lvgl_create() {UINT status;gui_thread_stack_area = app_malloc(APP_TASK_GUI_LVGL_STK_SIZE);if(!gui_thread_stack_area){tx_printf("app malloc error\r\n");return -1;}status = tx_thread_create(&gui_lvgl_thread, /* 任务控制块地址 */"gui lvgl thread", /* 任务名 */gui_lvgl_thread_entry, /* 启动任务函数地址 */0, /* 传递给任务的参数 */gui_thread_stack_area, /* 堆栈基地址 */APP_TASK_GUI_LVGL_STK_SIZE, /* 堆栈空间大小 */APP_TASK_GUI_LVGL_PRIO, /* 任务优先级*/APP_TASK_GUI_LVGL_PRIO, /* 任务抢占阀值 */TX_NO_TIME_SLICE, /* 不开启时间片 */TX_AUTO_START); /* 创建后立即启动 */if (status) {tx_printf("create error:%d\r\n",status);}return TX_SUCCESS;
}TX_THREAD_EXPORT(tx_task_gui_lvgl_create);/*
*********************************************************************************************************
* 内部函数
*********************************************************************************************************
*/static void event_handler(lv_event_t *e) {lv_event_code_t code = lv_event_get_code(e);if (code == LV_EVENT_CLICKED) {logInfo("Clicked");} else if (code == LV_EVENT_VALUE_CHANGED) {logInfo("Toggled");}
}void lv_example_btn_1(void) {lv_obj_t *label;lv_obj_t *btn1 = lv_btn_create(lv_scr_act());lv_obj_add_event_cb(btn1, event_handler, LV_EVENT_ALL, NULL);lv_obj_align(btn1, LV_ALIGN_CENTER, 0, -40);label = lv_label_create(btn1);lv_label_set_text(label, "Button");lv_obj_center(label);lv_obj_t *btn2 = lv_btn_create(lv_scr_act());lv_obj_add_event_cb(btn2, event_handler, LV_EVENT_ALL, NULL);lv_obj_align(btn2, LV_ALIGN_CENTER, 0, 40);lv_obj_add_flag(btn2, LV_OBJ_FLAG_CHECKABLE);lv_obj_set_height(btn2, LV_SIZE_CONTENT);label = lv_label_create(btn2);lv_label_set_text(label, "Toggle");lv_obj_center(label);
}static VOID gui_lvgl_thread_entry(ULONG input) {lv_example_btn_1();while (1) {lv_task_handler(); // lvgl 任务处理逻辑入口tx_thread_sleep(5);}}#endif
测试
总结
- threadx和lvgl之间的组合测试已经ok，特别注意栈分配空间大小的问题，lvgl这里使用的内存分配为sram外部内存来提供lvgl的动态内存分配
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