【开鸿智谷NiobeU4开发板免费试用体验】控温（2）

接上文| # 【开鸿智谷NiobeU4开发板免费试用体验】控温（1）； |

感谢开鸿智谷研发人员依然小烨哥和 大佬们的支持指导。

准备在上文基础上增加LCD。本文参考大佬们成功移植，

LCD方法：

• 拷贝一份显示驱动，
• 修改显示驱动
• 修改新案例目录名下.application_config
• 修改新案例目录名下BUILD.gn
• 修改新案例目录名下程序

起动系统及MobaXterm，

cd niobeu4_src/vendor/openvalley/niobeu4/demo/301_user/

拷贝一份显示驱动

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

参考指令：

cd ~/niobeu4_src/vendor/openvalley/niobeu4/demo/301_user
cp -rf ../107_hdf_spi/st7735.h
 cp -rf ../107_hdf_spi/st7735s.c
cp -f lvgl/examples/porting/lv_port_disp_template.c lvgl/lv_port_disp.c
cp -f lvgl/examples/porting/lv_port_disp_template.h lvgl/lv_port_disp.h

修改显示驱动

配置文件lv_conf.h

复制lvgl/lv_conf_template.h为lvgl/lv_conf.h

将#if 0改为1

暂时将542行的#define LV_USE_WIN 1 改为0

暂时将 39行#define LV_MEM_SIZE (128U * 1024U) / [bytes] /改为

#define LV_MEM_SIZE (12U * 1024U) / [bytes] /

按需提供堆大小,过大可能编译不过,过小可能影响创建对象。

/**
 * [url=home.php?mod=space&uid=1455510]@file[/url] lv_conf.h
 * Configuration file for v9.0.0-dev
 */

/*
 * 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>

/*====================
   COLOR SETTINGS
 *====================*/

/*Color depth: 1 (1 byte per pixel), 8 (RGB332), 16 (RGB565), 32 (ARGB8888)*/
#define LV_COLOR_DEPTH 16

#define LV_COLOR_CHROMA_KEY lv_color_hex(0x00ff00)

/*=========================
   STDLIB WRAPPER SETTINGS
 *=========================*/

/*Enable and configure the built-in memory manager*/
#define LV_USE_BUILTIN_MALLOC 1
#if LV_USE_BUILTIN_MALLOC
    /*Size of the memory available for `lv_malloc()` in bytes (>= 2kB)*/
    #define LV_MEM_SIZE (12U * 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
        #undef LV_MEM_POOL_INCLUDE
        #undef LV_MEM_POOL_ALLOC
    #endif
#endif  /*LV_USE_BUILTIN_MALLOC*/

/*Enable lv_memcpy_builtin, lv_memset_builtin, lv_strlen_builtin, lv_strncpy_builtin*/
#define LV_USE_BUILTIN_MEMCPY 1

/*Enable and configure the built-in (v)snprintf */
#define LV_USE_BUILTIN_SNPRINTF 1
#if LV_USE_BUILTIN_SNPRINTF
    #define LV_SPRINTF_USE_FLOAT 0
#endif  /*LV_USE_BUILTIN_SNPRINTF*/

#define LV_STDLIB_INCLUDE <stdint.h>
#define LV_MALLOC       lv_malloc_builtin
#define LV_REALLOC      lv_realloc_builtin
#define LV_FREE         lv_free_builtin
#define LV_MEMSET       lv_memset_builtin
#define LV_MEMCPY       lv_memcpy_builtin
#define LV_SNPRINTF     lv_snprintf_builtin
#define LV_VSNPRINTF    lv_vsnprintf_builtin
#define LV_STRLEN       lv_strlen_builtin
#define LV_STRNCPY      lv_strncpy_builtin

/*====================
   HAL SETTINGS
 *====================*/

/*Use a custom tick source that tells the elapsed time in milliseconds.
 *It removes the need to manually update the tick with `lv_tick_inc()`)*/
#define LV_TICK_CUSTOM 0
#if LV_TICK_CUSTOM
    #define LV_TICK_CUSTOM_INCLUDE "Arduino.h"         /*Header for the system time function*/
    #define LV_TICK_CUSTOM_SYS_TIME_EXPR (millis())    /*Expression evaluating to current system time in ms*/
#endif   /*LV_TICK_CUSTOM*/

/*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]*/

/*========================
 * DRAW CONFIGURATION
 *========================*/

/*Enable the built in mask engine.
 *Required to draw shadow, rounded corners, circles, arc, skew lines, or any other masks*/
#define LV_USE_DRAW_MASKS 1

#define LV_USE_DRAW_SW  1
#if LV_USE_DRAW_SW

    /*Enable complex draw engine.
     *Required to draw shadow, gradient, rounded corners, circles, arc, skew lines, image transformations or any masks*/
    #define LV_DRAW_SW_COMPLEX 1

    /* If a widget has `style_opa < 255` (not `bg_opa`, `text_opa` etc) or not NORMAL blend mode
     * it is buffered into a "simple" layer before rendering. The widget can be buffered in smaller chunks.
     * "Transformed layers" (if `transform_angle/zoom` are set) use larger buffers
     * and can't be drawn in chunks. */

    /*The target buffer size for simple layer chunks.*/
    #define LV_DRAW_SW_LAYER_SIMPLE_BUF_SIZE          (24 * 1024)   /*[bytes]*/

    /*Used if `LV_DRAW_SW_LAYER_SIMPLE_BUF_SIZE` couldn't be allocated.*/
    #define LV_DRAW_SW_LAYER_SIMPLE_FALLBACK_BUF_SIZE (3 * 1024)    /*[bytes]*/

    /*Allow buffering some shadow calculation.
    *LV_DRAW_SW_SHADOW_CACHE_SIZE is the max. shadow size to buffer, where shadow size is `shadow_width + radius`
    *Caching has LV_DRAW_SW_SHADOW_CACHE_SIZE^2 RAM cost*/
    #define LV_DRAW_SW_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_DRAW_SW_CIRCLE_CACHE_SIZE 4

    /*Default gradient buffer size.
     *When LVGL calculates the gradient "maps" it can save them into a cache to avoid calculating them again.
     *LV_DRAW_SW_GRADIENT_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_DRAW_SW_GRADIENT_CACHE_DEF_SIZE 0

    /*Allow dithering the gradients (to achieve visual smooth color gradients on limited color depth display)
     *LV_DRAW_SW_GRADIENT_DITHER 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_DRAW_SW_GRADIENT_DITHER 0
    #if LV_DRAW_SW_GRADIENT_DITHER
        /*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_DRAW_SW_GRADIENT_DITHER_ERROR_DIFFUSION 0
    #endif

    /*Enable subpixel rendering*/
    #define LV_DRAW_SW_FONT_SUBPX 0
    #if LV_DRAW_SW_FONT_SUBPX
        /*Set the pixel order of the display. Physical order of RGB channels. Doesn't matter with "normal" fonts.*/
        #define LV_DRAW_SW_FONT_SUBPX_BGR 0  /*0: RGB; 1:BGR order*/
    #endif
#endif

/*Use SDL renderer API*/
#define LV_USE_DRAW_SDL 0
#if LV_USE_DRAW_SDL
    #define LV_DRAW_SDL_INCLUDE_PATH <SDL2/SDL.h>
    /*Texture cache size, 8MB by default*/
    #define LV_DRAW_SDL_LRU_SIZE (1024 * 1024 * 8)
    /*Custom blend mode for mask drawing, disable if you need to link with older SDL2 lib*/
    #define LV_DRAW_SDL_CUSTOM_BLEND_MODE (SDL_VERSION_ATLEAST(2, 0, 6))
#endif

/*=====================
 * GPU CONFIGURATION
 *=====================*/

/*Use Arm's 2D acceleration library Arm-2D */
#define LV_USE_GPU_ARM2D 0

/*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 GD32 IPA GPU
 * This adds support for Image Processing Accelerator on GD32F450 and GD32F470 series MCUs
 *
 * NOTE: IPA on GD32F450 has a bug where the fill operation overwrites data beyond the
 * framebuffer. This driver works around it by saving and restoring affected memory, but
 * this makes it not thread-safe. GD32F470 is not affected. */
#define LV_USE_GPU_GD32_IPA 0

/*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 SWM341's DMA2D GPU*/
#define LV_USE_GPU_SWM341_DMA2D 0
#if LV_USE_GPU_SWM341_DMA2D
    #define LV_GPU_SWM341_DMA2D_INCLUDE "SWM341.h"
#endif

/*=======================
 * FEATURE CONFIGURATION
 *=======================*/

/*-------------
 * 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

    /*1: Enable print timestamp;
     *0: Disable print timestamp*/
    #define LV_LOG_USE_TIMESTAMP 1

    /*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*/
#define LV_ASSERT_HANDLER_INCLUDE <stdint.h>
#define LV_ASSERT_HANDLER while(1);   /*Halt by default*/

/*-------------
 * 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_USE_BUILTIN_MALLOC = 1`*/
#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

/*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)

#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*/

/*Default image cache size. Image caching keeps some images opened.
 *If only the built-in image formats are used there is no real advantage of caching.
 *With other image decoders (e.g. PNG or JPG) caching save the continuous open/decode of images.
 *However the opened images 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

/* 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 0

/*=====================
 *  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)))*/
#define LV_ATTRIBUTE_MEM_ALIGN

/*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


/*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 0
#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 drawing placeholders when glyph dsc is not found*/
#define LV_USE_FONT_PLACEHOLDER 1

/*=================
 *  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

/*==================
 * WIDGETS
 *================*/

/*Documentation of the widgets: https://docs.lvgl.io/latest/en/html/widgets/index.html*/

#define LV_USE_ANIMIMG    1

#define LV_USE_ARC        1

#define LV_USE_BAR        1

#define LV_USE_BTN        1

#define LV_USE_BTNMATRIX  1

#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_CANVAS     1

#define LV_USE_CHART      1

#define LV_USE_CHECKBOX   1

#define LV_USE_COLORWHEEL 1

#define LV_USE_DROPDOWN   1   /*Requires: lv_label*/

#define LV_USE_IMG        1   /*Requires: lv_label*/

#define LV_USE_IMGBTN     1

#define LV_USE_KEYBOARD   1

#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_LED        1

#define LV_USE_LINE       1

#define LV_USE_LIST       1

#define LV_USE_MENU       1

#define LV_USE_METER      1

#define LV_USE_MSGBOX     1

#define LV_USE_ROLLER     1   /*Requires: lv_label*/

#define LV_USE_SLIDER     1   /*Requires: lv_bar*/

#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

#define LV_USE_SPINBOX    1

#define LV_USE_SPINNER    1

#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

#define LV_USE_TABVIEW    1

#define LV_USE_TILEVIEW   1

#define LV_USE_WIN        0

/*==================
 * 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 PARTS 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

/* Built-in TTF decoder */
#define LV_USE_TINY_TTF 0
#if LV_USE_TINY_TTF
    /* Enable loading TTF data from files */
    #define LV_TINY_TTF_FILE_SUPPORT 0
#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_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

/*1: Enable lv_obj fragment*/
#define LV_USE_FRAGMENT 0

/*1: Support using images as font in label or span widgets */
#define LV_USE_IMGFONT 0
#if LV_USE_IMGFONT
    /*Imgfont image file path maximum length*/
    #define LV_IMGFONT_PATH_MAX_LEN 64

    /*1: Use img cache to buffer header information*/
    #define LV_IMGFONT_USE_IMG_CACHE_HEADER 0
#endif

/*1: Enable a published subscriber based messaging system */
#define LV_USE_MSG 0

/*1: Enable Pinyin input method*/
/*Requires: lv_keyboard*/
#define LV_USE_IME_PINYIN 0
#if LV_USE_IME_PINYIN
    /*1: Use default thesaurus*/
    /*If you do not use the default thesaurus, be sure to use `lv_ime_pinyin` after setting the thesauruss*/
    #define LV_IME_PINYIN_USE_DEFAULT_DICT 1
    /*Set the maximum number of candidate panels that can be displayed*/
    /*This needs to be adjusted according to the size of the screen*/
    #define LV_IME_PINYIN_CAND_TEXT_NUM 6

    /*Use 9 key input(k9)*/
    #define LV_IME_PINYIN_USE_K9_MODE      1
    #if LV_IME_PINYIN_USE_K9_MODE == 1
        #define LV_IME_PINYIN_K9_CAND_TEXT_NUM 3
    #endif // LV_IME_PINYIN_USE_K9_MODE
#endif

/*1: Enable file explorer*/
/*Requires: lv_table*/
#define LV_USE_FILE_EXPLORER                     0
#if LV_USE_FILE_EXPLORER
    /*Maximum length of path*/
    #define LV_FILE_EXPLORER_PATH_MAX_LEN        (128)
    /*Quick access bar, 1:use, 0:not use*/
    /*Requires: lv_list*/
    #define LV_FILE_EXPLORER_QUICK_ACCESS        1
#endif

/*==================
* 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
#if LV_USE_DEMO_BENCHMARK
    /*Use RGB565A8 images with 16 bit color depth instead of ARGB8565*/
    #define LV_DEMO_BENCHMARK_RGB565A8 0
#endif

/*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"*/

配置文件lv_port_disp.h

将里面的#if 0改为1,

加入：

#include "../st7735.h"

#define LV_LVGL_H_INCLUDE_SIMPLE 1

#define MY_DISP_HOR_RES ROW_PIXEL

#define MY_DISP_VER_RES COL_PIXEL

/**
 * @file lv_port_disp_templ.h
 *
 */

/*Copy this file as "lv_port_disp.h" and set this value to "1" to enable content*/
#if 1
#include "../st7735.h"
#ifndef LV_PORT_DISP_TEMPL_H
#define LV_PORT_DISP_TEMPL_H

#ifdef __cplusplus
extern "C" {
#endif

/*********************
 *      INCLUDES
 *********************/
#if defined(LV_LVGL_H_INCLUDE_SIMPLE)
#include "lvgl.h"
#else
#include "lvgl/lvgl.h"
#endif

/*********************
 *      DEFINES
 *********************/
#define LV_LVGL_H_INCLUDE_SIMPLE 1
#define MY_DISP_HOR_RES ROW_PIXEL
#define MY_DISP_VER_RES COL_PIXEL

配置文件lv_port_disp.c

将里面的#if 0改为1,#include "lv_port_disp_template.h"改为#include "lv_port_disp.h"

修改disp_init(void)加入LcdInit();

修改 lv_port_disp_init(void),

删掉Example for 2)和 Example for 3) 内对应的代码

修改static void disp_flush(),

/ Put a pixel to the display. For example: /

/*put_px(x, y, color_p) /改为lcd_draw_point(x,y,color_p->full);尾部加LcdPush();代码

/**
 * @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 <stdbool.h>

/*********************
 *      DEFINES
 *********************/
#ifndef MY_DISP_HOR_RES
    #warning Please define or replace the macro MY_DISP_HOR_RES with the actual screen width, default value 320 is used for now.
    #define MY_DISP_HOR_RES    320
#endif

#ifndef MY_DISP_VER_RES
    #warning Please define or replace the macro MY_DISP_HOR_RES with the actual screen height, default value 240 is used for now.
    #define MY_DISP_VER_RES    240
#endif

/**********************
 *      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
     * -----------------------*/
    LcdInit();

    /*-----------------------------
     * Create a buffer for drawing
     *----------------------------*/

    /**
     * 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*/



    /*-----------------------------------
     * Register the display in LVGL
     *----------------------------------*/

    static lv_disp_drv_t disp_drv;                         /*Descriptor of a display driver*/
    lv_disp_drv_init(&disp_drv);                    /*Basic initialization*/

    /*Set up the functions to access to your display*/

    /*Set the resolution of the display*/
    disp_drv.hor_res = MY_DISP_HOR_RES;
    disp_drv.ver_res = MY_DISP_VER_RES;

    /*Used to copy the buffer's content to the display*/
    disp_drv.flush_cb = disp_flush;

    /*Set a display buffer*/
    disp_drv.draw_buf = &draw_buf_dsc_1;

    /*Required for Example 3)*/
    //disp_drv.full_refresh = 1;

    /* Fill a memory array with a color if you have GPU.
     * Note that, in lv_conf.h you can enable GPUs that has built-in support in LVGL.
     * But if you have a different GPU you can use with this callback.*/
    //disp_drv.gpu_fill_cb = gpu_fill;

    /*Finally register the driver*/
    lv_disp_drv_register(&disp_drv);
}

/**********************
 *   STATIC FUNCTIONS
 **********************/

/*Initialize your display and the required peripherals.*/
static void disp_init(void)
{
    /*You code here*/LcdInit();
}

volatile bool disp_flush_enabled = true;

/* Enable updating the screen (the flushing process) when disp_flush() is called by LVGL
 */
void disp_enable_update(void)
{
    disp_flush_enabled = true;
}

/* Disable updating the screen (the flushing process) when disp_flush() is called by LVGL
 */
void disp_disable_update(void)
{
    disp_flush_enabled = false;
}

/*Flush the content of the internal buffer the specific area on the display
 *You can use DMA or any hardware acceleration to do this operation in the background but
 *'lv_disp_flush_ready()' has to be called when finished.*/
static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p)
{
    if(disp_flush_enabled) {
        /*The most simple case (but also the slowest) to put all pixels to the screen one-by-one*/

        int32_t x;
        int32_t y;
        for(y = area->y1; y <= area->y2; y++) {
            for(x = area->x1; x <= area->x2; x++) {
                lcd_draw_point(x,y,color_p->full);
                color_p++;
            }
        }
  LcdPush();  }

    /*IMPORTANT!!!
     *Inform the graphics library that you are ready with the flushing*/
    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;
#endif

修改lv_tick_inc

此处修改方式与参考文件不同，此处修改如下

在/home/lst/niobeu4_src/vendor/openvalley/niobeu4/demo/301_user/lvgl/src/hal/lv_hal_tick.c中加入LOS_Msleep(tick_period);如下

/**
 * You have to call this function periodically
 * [url=home.php?mod=space&uid=3142012]@param[/url] tick_period the call period of this function in milliseconds
 */
LV_ATTRIBUTE_TICK_INC void lv_tick_inc(uint32_t tick_period)
{
    tick_irq_flag = 0;
    sys_time += tick_period;
    LOS_Msleep(tick_period);
}

修改新案例目录名下.application_config

在MobaXterm右侧

在niobeu4_src/vendor/openvalley/niobeu4/demo/301_user目录

下打开# .application_config文件，修改内容:

# Copyright (c) 2022 Hunan OpenValley Digital Industry Development Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


config NIOBEU4_APPLICATION_301
    bool "301_user"
    select DRIVERS
    select DRIVERS_HDF 
    select DRIVERS_HDF_PLATFORM
    select DRIVERS_HDF_CONFIG_MACRO
    select DRIVERS_HDF_PLATFORM_SPI    
    select DRIVERS_HDF_PLATFORM_GPIO
    select DRIVERS_HDF_PLATFORM_ADC

修改新案例目录名下BUILD.gn

在MobaXterm右侧

在niobeu4_src/vendor/openvalley/niobeu4/demo/301_user目录

下打开BUILD.gn文件，修改内容:

将lv_conf.h添加到工程头文件包含路径。

即修改

niobeu4_src/vendor/openvalley/niobeu4/demo/301_user/BUILD.gn

include_dirs = [

下添加一行"lvgl/",

# Copyright (c) 2022 Hunan OpenValley Digital Industry Development Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import("//kernel/liteos_m/liteos.gni")
assert(defined(LOSCFG_DRIVERS_HDF_CONFIG_MACRO), "Must Config LOSCFG_DRIVERS_HDF_CONFIG_MACRO in kernel/liteos_m menuconfig!") 
assert(defined(LOSCFG_DRIVERS_HDF_PLATFORM_SPI), "Must Config LOSCFG_DRIVERS_HDF_PLATFORM_SPI in kernel/liteos_m menuconfig!")   
assert(defined(LOSCFG_DRIVERS_HDF_PLATFORM_GPIO), "Must Config LOSCFG_DRIVERS_HDF_PLATFORM_GPIO in kernel/liteos_m menuconfig!")   
module_name = get_path_info(rebase_path("."), "name")
kernel_module(module_name){
    sources = [
        "os_thread_example.c",
        "st7735s.c",
                            "lvgl/src/core/lv_disp.c",

    "lvgl/src/core/lv_event.c",

    "lvgl/src/core/lv_group.c",

    "lvgl/src/core/lv_indev_scroll.c",

    "lvgl/src/core/lv_indev.c",

    "lvgl/src/core/lv_obj_class.c",

    "lvgl/src/core/lv_obj_draw.c",

    "lvgl/src/core/lv_obj_pos.c",

    "lvgl/src/core/lv_obj_scroll.c",

    "lvgl/src/core/lv_obj_style_gen.c",

    "lvgl/src/core/lv_obj_style.c",

    "lvgl/src/core/lv_obj_tree.c",

    "lvgl/src/core/lv_obj.c",

    "lvgl/src/core/lv_refr.c",

    "lvgl/src/core/lv_theme.c",



    "lvgl/src/draw/sw/lv_draw_sw_arc.c",

    "lvgl/src/draw/sw/lv_draw_sw_blend.c", 

    "lvgl/src/draw/sw/lv_draw_sw_dither.c",   

    "lvgl/src/draw/sw/lv_draw_sw_gradient.c",

    "lvgl/src/draw/sw/lv_draw_sw_img.c",

    "lvgl/src/draw/sw/lv_draw_sw_layer.c",

    "lvgl/src/draw/sw/lv_draw_sw_letter.c",

    "lvgl/src/draw/sw/lv_draw_sw_line.c",

    "lvgl/src/draw/sw/lv_draw_sw_polygon.c",

    "lvgl/src/draw/sw/lv_draw_sw_rect.c",

    "lvgl/src/draw/sw/lv_draw_sw_transform.c",

    "lvgl/src/draw/sw/lv_draw_sw.c",

    "lvgl/src/draw/lv_draw_arc.c",

    "lvgl/src/draw/lv_draw_img.c",   

    "lvgl/src/draw/lv_draw_label.c",  

    "lvgl/src/draw/lv_draw_layer.c",

    "lvgl/src/draw/lv_draw_line.c",

    "lvgl/src/draw/lv_draw_mask.c",

    "lvgl/src/draw/lv_draw_rect.c",

    "lvgl/src/draw/lv_draw_transform.c",

    "lvgl/src/draw/lv_draw_triangle.c",

    "lvgl/src/draw/lv_draw.c",

    "lvgl/src/draw/lv_img_buf.c",

    "lvgl/src/draw/lv_img_cache.c",

    "lvgl/src/draw/lv_img_decoder.c",



    "lvgl/src/font/lv_font_fmt_txt.c",

    "lvgl/src/font/lv_font.c",

    "lvgl/src/font/lv_font_montserrat_12.c",

    "lvgl/src/font/lv_font_montserrat_14.c",

    "lvgl/src/font/lv_font_montserrat_16.c",



    "lvgl/src/hal/lv_hal_disp.c",

    "lvgl/src/hal/lv_hal_indev.c",

    "lvgl/src/hal/lv_hal_tick.c",



    "lvgl/src/layouts/flex/lv_flex.c",

    "lvgl/src/layouts/grid/lv_grid.c",



    "lvgl/src/libs/bmp/lv_bmp.c",

    "lvgl/src/libs/ffmpeg/lv_ffmpeg.c",

    "lvgl/src/libs/freetype/lv_freetype.c",

    "lvgl/src/libs/fsdrv/lv_fs_fatfs.c",

    "lvgl/src/libs/fsdrv/lv_fs_posix.c",

    "lvgl/src/libs/fsdrv/lv_fs_stdio.c",

    "lvgl/src/libs/fsdrv/lv_fs_win32.c",

    "lvgl/src/libs/gif/gifdec.c",

    "lvgl/src/libs/gif/lv_gif.c",

    "lvgl/src/libs/png/lodepng.c",

    "lvgl/src/libs/png/lv_png.c",

    "lvgl/src/libs/qrcode/lv_qrcode.c",

    "lvgl/src/libs/qrcode/qrcodegen.c",

    "lvgl/src/libs/rlottie/lv_rlottie.c",

    "lvgl/src/libs/sjpg/lv_sjpg.c",

    "lvgl/src/libs/sjpg/tjpgd.c",



    "lvgl/src/misc/lv_anim_timeline.c",

    "lvgl/src/misc/lv_anim.c",

    "lvgl/src/misc/lv_area.c",

    "lvgl/src/misc/lv_async.c",

    "lvgl/src/misc/lv_bidi.c",

    "lvgl/src/misc/lv_color.c",

    "lvgl/src/misc/lv_fs.c",

    "lvgl/src/misc/lv_gc.c",

    "lvgl/src/misc/lv_ll.c",

    "lvgl/src/misc/lv_log.c",

    "lvgl/src/misc/lv_lru.c",

    "lvgl/src/misc/lv_malloc_builtin.c",

    "lvgl/src/misc/lv_math.c",

    "lvgl/src/misc/lv_mem.c",

    "lvgl/src/misc/lv_memcpy_builtin.c",

    "lvgl/src/misc/lv_printf.c",

    "lvgl/src/misc/lv_style_gen.c",

    "lvgl/src/misc/lv_style.c",

    "lvgl/src/misc/lv_templ.c",

    "lvgl/src/misc/lv_timer.c",

    "lvgl/src/misc/lv_tlsf.c",

    "lvgl/src/misc/lv_txt_ap.c",

    "lvgl/src/misc/lv_txt.c",

    "lvgl/src/misc/lv_utils.c",



    "lvgl/src/others/file_explorer/lv_file_explorer.c",

    "lvgl/src/others/fragment/lv_fragment_manager.c",

    "lvgl/src/others/fragment/lv_fragment.c",

    "lvgl/src/others/gridnav/lv_gridnav.c",

    "lvgl/src/others/ime/lv_ime_pinyin.c",

    "lvgl/src/others/imgfont/lv_imgfont.c",

    "lvgl/src/others/monkey/lv_monkey.c",

    "lvgl/src/others/msg/lv_msg.c",

    "lvgl/src/others/snapshot/lv_snapshot.c",



    "lvgl/src/themes/basic/lv_theme_basic.c",

    "lvgl/src/themes/default/lv_theme_default.c",

    "lvgl/src/themes/mono/lv_theme_mono.c",





    "lvgl/src/widgets/animimg/lv_animimg.c",

    "lvgl/src/widgets/arc/lv_arc.c",

    "lvgl/src/widgets/bar/lv_bar.c",

    "lvgl/src/widgets/btn/lv_btn.c",

    "lvgl/src/widgets/btnmatrix/lv_btnmatrix.c",

    "lvgl/src/widgets/calendar/lv_calendar_header_arrow.c",

    "lvgl/src/widgets/calendar/lv_calendar_header_dropdown.c",

    "lvgl/src/widgets/calendar/lv_calendar.c",

    "lvgl/src/widgets/canvas/lv_canvas.c",

    "lvgl/src/widgets/chart/lv_chart.c",

    "lvgl/src/widgets/checkbox/lv_checkbox.c",

    "lvgl/src/widgets/colorwheel/lv_colorwheel.c",

    "lvgl/src/widgets/dropdown/lv_dropdown.c",

    "lvgl/src/widgets/img/lv_img.c",

    "lvgl/src/widgets/imgbtn/lv_imgbtn.c",

    "lvgl/src/widgets/keyboard/lv_keyboard.c",

    "lvgl/src/widgets/label/lv_label.c",

    "lvgl/src/widgets/led/lv_led.c",

    "lvgl/src/widgets/line/lv_line.c",

    "lvgl/src/widgets/list/lv_list.c",

    "lvgl/src/widgets/menu/lv_menu.c",

    "lvgl/src/widgets/meter/lv_meter.c",

    "lvgl/src/widgets/msgbox/lv_msgbox.c",

    "lvgl/src/widgets/objx_templ/lv_objx_templ.c",

    "lvgl/src/widgets/roller/lv_roller.c",

    "lvgl/src/widgets/slider/lv_slider.c",

    "lvgl/src/widgets/span/lv_span.c",

    "lvgl/src/widgets/spinbox/lv_spinbox.c",

    "lvgl/src/widgets/spinner/lv_spinner.c",    

    "lvgl/src/widgets/switch/lv_switch.c",           

    "lvgl/src/widgets/table/lv_table.c",  

    "lvgl/src/widgets/tabview/lv_tabview.c",

    "lvgl/src/widgets/textarea/lv_textarea.c",

    "lvgl/src/widgets/tileview/lv_tileview.c",



    "lvgl/lv_port_disp.c",



    #"lvgl/demos/music/lv_demo_music_list.c",

    #"lvgl/demos/music/lv_demo_music_main.c",

    #"lvgl/demos/music/lv_demo_music.c",

    "lvgl/demos/stress/lv_demo_stress.c",

    ]
    include_dirs = [
        "//drivers/hdf_core/framework/include/platform/",
        "//drivers/hdf_core/framework/include/utils/",
        "//drivers/hdf_core/framework/support/platform/include/spi",
        "//drivers/hdf_core/adapter/khdf/liteos_m/osal/include/",
        "//drivers/hdf_core/framework/include/core/",
        "//drivers/hdf_core/framework/include/osal/",
        "//drivers/hdf_core/framework/support/platform/include/gpio",
        "//kernel/liteos_m/kernel/include",
        "//device/soc/esp/esp32/components/esp_adc_cal/include/",
        "//device/soc/esp/esp32/components/driver/esp32/include/",
        ".",
        "lvgl/",
        "lvgl/src",

    ]
}

修改新案例目录名下程序

/home/lst/niobeu4_src/vendor/openvalley/niobeu4/demo/301_user 下

os_thread_example.c

/*
 * Copyright (c) 2022 Hunan OpenValley Digital Industry Development Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include "stdint.h"
#include "los_task.h"
#include "ohos_run.h"
#include "st7735.h"

#include <math.h>

#include "lv_port_disp.h"
#include "lvgl.h"
#include "demos/lv_demos.h"
#include "esp_adc_cal.h"
#include "gpio_if.h"
#define PWR_SW_PIN_INDEX    2

#define KEY_LED_OFF 0
#define KEY_LED_ON  1

//在hcs文件中对应具体的GPIO口
#define BLUE_LED_PIN_INDEX  0       // 蓝色LED
#define RED_LED_PIN_INDEX   1       // 红色LED

UINT32 button_o=0,key_stateBLUE=0,key_stateRED=0;
     
void lv_tick_handle(UINT32 arg)
{
    printf("%s start tick\r\n", __FUNCTION__);
    while(1)
    {
        lv_tick_inc(50);
        lv_timer_handler();
    }
}


/* 低优先级任务入口函数 */
UINT32 Example_TaskLo(UINT32 arg)
{

uint16_t key_state = 0;

   while(1){
        LOS_Msleep(30);
   if (button_o==55){

//                       GpioRead(RED_LED_PIN_INDEX, &);
                       button_o=0;
                       printf("[key_state] sw4 : %d\n", key_state);
                       if (key_stateRED){
                            	GpioWrite(RED_LED_PIN_INDEX, KEY_LED_OFF);
                            	key_stateRED=0;
                            printf("[RED_LED] sw4 : Off\n");
//                             lv_label_set_text(label_swb, "RED off");
//                            lv_led_off(led1);
                            }
                            else{
                            GpioWrite(RED_LED_PIN_INDEX, KEY_LED_ON);
                            key_stateRED=1;
                            printf("[RED_LED] sw4 : ON\n");
//                             lv_label_set_text(label_swb, "RED on");
//                            lv_led_on(led1);
                            }
   }
//                            GpioWrite(RED_LED_PIN_INDEX, KEY_LED_ON);
//                            GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_OFF);


   if (button_o==66){
//                       GpioRead(BLUE_LED_PIN_INDEX, &key_state);
                       button_o=0;
                       printf("[key_state] sw5 : %d\n", key_state);
                       if (key_stateBLUE){GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_OFF);
                       	key_stateBLUE=0;
                            printf("[BLUE_LED] sw5 : Off\n");
//                            lv_label_set_text(label_swb, "BLUE off");
//                            lv_led_off(led2);
                            }
                            else{
                            GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_ON);
                            key_stateBLUE=1;
                            printf("[BLUE_LED] sw5 : ON\n");
//                            lv_label_set_text(label_swb, "BLUE on");
//                            lv_led_on(led2);
                            }
   }
//                            GpioWrite(RED_LED_PIN_INDEX, KEY_LED_ON);
//                            GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_OFF);
                            }
//    UINT32 ret;
//    printf("Enter TaskLo Handler.\n");
//    /* 延时100个Ticks，延时后该任务会挂起，执行剩余任务中最高优先级的任务 */
//    ret = LOS_TaskDelay(100);
//    if (ret != LOS_OK) {
//        printf("Delay TaskLo Failed.\n");
//        return LOS_NOK;
//    }
//
//    printf("TaskHi LOS_TaskSuspend Success.\n");
//
//    /* 恢复被挂起的任务g_taskHiId */
//    ret = LOS_TaskResume(g_taskHiId);
//    if (ret != LOS_OK) {
//        printf("Resume TaskHi Failed.\n");
//        return LOS_NOK;
//    }
//    return ret;


}


void StartHdfSPITest(void)
{
   int raw;
    UINT32 g_lv_time_task;
    TSK_INIT_PARAM_S task = { 0 };
    task.pfnTaskEntry = (TSK_ENTRY_FUNC)lv_tick_handle;
    task.pcName = "lv_time_task";
    task.uwStackSize = 0x1000;
    task.usTaskPrio = 25 - 1;

    GpioSetDir(PWR_SW_PIN_INDEX, GPIO_DIR_OUT);
    GpioWrite(PWR_SW_PIN_INDEX, 1);

    adc1_config_width(ADC_WIDTH_12Bit); 
    adc1_config_channel_atten(ADC1_CHANNEL_0, ADC_ATTEN_DB_11); 

    printf("[key_led] ADC init\n");

    lv_init();
    lv_port_disp_init();
    //lv_log_register_print_cb(lv_log_print);
    LOS_TaskCreate(&g_lv_time_task, &task);

    lv_obj_t * btn_sw4 = lv_btn_create(lv_scr_act());     /*Add a button the current screen*/
    lv_obj_set_pos(btn_sw4, 10, 10);                            /*Set its position*/
    lv_obj_set_size(btn_sw4, 110, 25);                          /*Set its size*/

    lv_obj_t * label_sw4 = lv_label_create(btn_sw4);          /*Add a label to the button*/
    lv_obj_center(label_sw4);


    lv_obj_t * btn_sw5 = lv_btn_create(lv_scr_act());     /*Add a button the current screen*/
    lv_obj_set_pos(btn_sw5, 10, 45);                            /*Set its position*/
    lv_obj_set_size(btn_sw5, 110, 25);                          /*Set its size*/

    lv_obj_t * label_sw5 = lv_label_create(btn_sw5);          /*Add a label to the button*/
    lv_obj_center(label_sw5);
    
    
    GpioSetDir(RED_LED_PIN_INDEX, GPIO_DIR_OUT);    // 红灯对应GPIO配置为输出
    GpioSetDir(BLUE_LED_PIN_INDEX, GPIO_DIR_OUT); // 蓝灯对应GPIO配置为输出
    


    
    task.pfnTaskEntry = (TSK_ENTRY_FUNC)Example_TaskLo;
    task.pcName = "Example_TaskLo";    
    task.uwStackSize = 0x1000;    
    task.usTaskPrio = 25 ;
    LOS_TaskCreate(&g_lv_time_task, &task);  
      
    while(1)
    {           lv_label_set_text(label_sw4, "SW4 Release");                     /*Set the labels text*/
            lv_label_set_text(label_sw5, "SW5 Release");                     /*Set the labels text*/
        LOS_Msleep(200);
        lv_task_handler();
        raw = adc1_get_raw(ADC1_CHANNEL_0); 
		    UINT32 button_s=0;        
        //printf("[key_led] raw: %d\n", raw);
        if (raw < 100)
        {
            LOS_Msleep(30);
                        lv_label_set_text(label_sw4, "SW4 Pressed");                   /*Set the labels text*/
            raw = adc1_get_raw(ADC1_CHANNEL_0); //获取ADC1通道0的原始值
                    if (raw < 100)
                        {
                            button_o=55;
                            button_s++;
                            printf("[key_led] sw4 pressed raw: %d\n", raw);
                            while(adc1_get_raw(ADC1_CHANNEL_0)< 100){                             LOS_Msleep(30);
                            button_s++;
                            if (button_s>34){
                                printf("[key_led] sw4 pressed long: %d\n", raw);
                            }
                            if (button_s>240){button_s=240;}

//                            GpioWrite(RED_LED_PIN_INDEX, KEY_LED_ON);
//                            GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_OFF);
                            }
                            button_s=0;
                    printf("[key_led] sw4 pressed up: %d\n", raw);
//                    GpioWrite(RED_LED_PIN_INDEX, KEY_LED_ON);
//                    GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_OFF);

                        }

        }
        else if (raw >1000 && raw < 3000)
        {

            LOS_Msleep(30);
            lv_label_set_text(label_sw5, "SW5 Pressed");                     /*Set the labels text*/
            raw = adc1_get_raw(ADC1_CHANNEL_0); //获取ADC1通道0的原始值
                    if (raw >1000 && raw < 3000)
                        {
                            button_o=66;
                            button_s++;
                            printf("[key_led] sw5 pressed raw: %d\n", raw);
                            raw = adc1_get_raw(ADC1_CHANNEL_0); //获取ADC1通道0的原始值
                            while(raw >1000 && raw < 3000){                             LOS_Msleep(30);
                            button_s++;
                            if (button_s>34){
                                                                printf("[key_led] sw5 pressed long: %d\n", raw);
                            }
                            if (button_s>240){button_s=240;}
                            raw = adc1_get_raw(ADC1_CHANNEL_0);

//                            GpioWrite(RED_LED_PIN_INDEX, KEY_LED_ON);
//                            GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_OFF);
                            }
                            button_s=0;
                    printf("[key_led] sw5 pressed up: %d\n", raw);
//                    GpioWrite(RED_LED_PIN_INDEX, KEY_LED_ON);
//                    GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_OFF);

                        }







//            printf("[key_led] sw5 pressed raw: %d\n", raw);
//            GpioWrite(RED_LED_PIN_INDEX, KEY_LED_OFF);
//            GpioWrite(BLUE_LED_PIN_INDEX, KEY_LED_ON);
        }


	}

}


OHOS_APP_RUN(StartHdfSPITest);
```![1665816283026.jpg](//file.elecfans.com/web2/M00/70/C8/pYYBAGNKX9yAeQhnAACbqvX3V1U987.jpg)

构建源码

• 进入源码根目录，执行hb set命令并选择openvalley下的iotlink。

hb set

• 执行hb build –f脚本构建产生固件。

hb build –f

• 如图所示，编译成功，并查看生产的固件。

构建成功会提示类似如下信息。

[OHOS INFO] iotlink build success
[OHOS INFO] cost time: 0:03:28

• 查看生成的固件。

ls /home/lst/niobeu4_src/out/niobeu4/iotlink/bin/

| 固件名称       | 用途                          |
| ---------------- | ------------------------------- |
| OHOS_Image.bin | OpenHarmony内核及应用镜像文件 |
| bootloader.bin | 启动引导镜像文件              |
| partitions.bin | 分区表镜像文件                |

烧录镜像

• 通过MobaXterm软件ssh登录服务器，将生成的文件Download到Windows系统下，如图所示。

Windows下可以使用Flash_Download_Tool工具进行烧录，点击这里开始下载。

• 在windows下解压flash_download_tool_3.9.2.rar。
• 双击解压后得到的烧录工具flash_download_tool_3.9.2.exe，chipType选择 ESP32, workMode选择 develop，进入主界面。

图4 Flash_Download_Tool打开页面图

• 连接开发板的TypeC口到PC，查看设备管理器，确定串口端口号。

• 进入下载页面，填入需要烧录的 bin 文件和对应的烧录地址，并根据自己实际 需求填入 SPI SPEED、SPI MODE、COM 及 BAUD。

固件对应烧录地址如下。

//out/niobeu4/iotlink/bin/bootloader.bin ---------->  0x1000
//out/niobeu4/iotlink/bin/partitions.bin ---------->  0x8000
//out/niobeu4/iotlink/OHOS_Image.bin ---------->  0x10000

图6 烧录设置页面图

• 点击 START 开始下载。下载过程中，下载工具会读取 flash 的信息和芯片的 MAC 地址。我们可以通过勾选框选择是否烧录该文件，一般我们在首次烧录时会全部烧录，为了加快开发效率，调试时只需烧录OHOS_Image.bin即可。下载完成后，可以看到如下提示。

图7 烧录成功页面图

运行镜像

烧录完成后需要按下复位键复位设备，程序才会启动。
com:

<--------------- OHOS Application Start Here --------------->
[key_led] ADC init

[2022-10-15 14:44:16.096]# RECV ASCII>
I (161) wifi_init: WiFi RX IRAM OP enabled
E (596) gpio: gpio_set_drive_capability(596): GPIO number error
E (706) spi_master: c

[2022-10-15 14:44:16.197]# RECV ASCII>
heck_trans_valid(706): trans tx_buffer should be NULL and SPI_TRANS_USE_TXDATA should be cleared to skip MOSI phase.
E (706) spi

[2022-10-15 14:44:16.338]# RECV ASCII>
lv_tick_handle start tick

[2022-10-15 14:45:56.791]# RECV ASCII>
[key_led] sw4 pressed raw: 0
[key_state] sw4 : 0
[RED_LED] sw4 : ON

[2022-10-15 14:45:58.261]# RECV ASCII>
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed long: 0
[key_led] sw4 pressed up: 0

[2022-10-15 14:46:02.024]# RECV ASCII>
[key_led] sw5 pressed raw: 1923
[key_state] sw5 : 0
[BLUE_LED] sw5 : ON

[2022-10-15 14:46:02.984]# RECV ASCII>
[key_led] sw5 pressed up: 4095

[2022-10-15 14:46:04.647]# RECV ASCII>
[key_led] sw4 pressed raw: 0
[key_state] sw4 : 0
[RED_LED] sw4 : Off

[2022-10-15 14:46:04.869]# RECV ASCII>
[key_led] sw4 pressed up: 0

[2022-10-15 14:46:06.101]# RECV ASCII>
[key_led] sw4 pressed raw: 0
[key_state] sw4 : 0
[RED_LED] sw4 : ON

[2022-10-15 14:46:06.235]# RECV ASCII>
[key_led] sw4 pressed up: 0

[2022-10-15 14:46:07.282]# RECV ASCII>
[key_led] sw5 pressed raw: 1923
[key_state] sw5 : 0
[BLUE_LED] sw5 : Off

达到预期状态。