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qjp1988113

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[GD32F303]

【星空派GD32F303开发板试用体验】+LVGL移植

今天有点空，我们移植一下LVGL~
先看效果图：
Z1.jpg
Z2.jpg
Z3.jpg
在这之前，我们得调试好屏幕及触摸~
我们以之前的LCD那个程序为模板，开始添加LVGL文件。
先下载LVGL源文件包：
lvgl-master.zip (725.23 KB)
(下载次数: 13, 2021-11-9 09:23 上传)

删去一些不必要的，整理成：
GUI.rar (2.51 MB)
(下载次数: 34, 2021-11-9 09:26 上传)

解压下来，将GUI添加进工程：
其中由于LVGL的特性，需要添加C99支持，并屏蔽一些类型的警告：
勾选C99,并在Misc Controls 中填入 --diag_suppress=68 --diag_supp
ress=111 --diag_suppress=550：
Z5.png
添加LVGL的心跳，这了由于已经用了SYStiCK作为延时定时器。
我们这了新开一个定时器1，并设定为1ms中断，为LVGL提供心跳节拍~
  1. #include "timer.h"
  2. #include "lvgl.h"

  4. //1秒产生一次中断 int_time = CLK / ((prescaler+1) *  (period+1))
  5. void TIM1_Int_Init(u16 arr,u16 psc)
  6. {
  7.   timer_parameter_struct timer_parameter;

  9.   rcu_periph_clock_enable(RCU_TIMER1);

  11.   //预分频
  12.   timer_parameter.prescaler = psc,
  13.   //对齐模式
  14.   timer_parameter.alignedmode = TIMER_COUNTER_EDGE,
  15.   //定时器增长方向
  16.   timer_parameter.counterdirection = TIMER_COUNTER_UP,
  17.   //定时器自动加载值
  18.   timer_parameter.period = arr,
  19.   //时钟分频值
  20.   timer_parameter.clockdivision = TIMER_CKDIV_DIV4,

  22.   timer_init(TIMER1, &timer_parameter);

  24.   timer_interrupt_enable(TIMER1, TIMER_INT_UP);
  25.   nvic_irq_enable(TIMER1_IRQn, 0, 2);

  27.   timer_enable(TIMER1);
  28. }


  31. void TIMER1_IRQHandler()
  32. {
  33.   if (timer_interrupt_flag_get(TIMER1, TIMER_INT_UP) != RESET)
  34.   {
  35.     lv_tick_inc(1);//lvgl的1ms心跳
  36.     timer_interrupt_flag_clear(TIMER1, TIMER_INT_UP);
  37.   }
  38. }

在main初始化里面设定：
  1. TIM1_Int_Init(999,119);//定时器初始化(1ms 中断),用于给 lvgl 提供 1ms 的心跳节拍
其余就是一些常见的config的配置：
对lv_conf.h进行如下修改：
  1. /**
  2. * [url=home.php?mod=space&uid=1455510]@file[/url] lv_conf.h
  3. *
  4. */

  6. /*
  7. * COPY THIS FILE AS `lv_conf.h` NEXT TO the `lvgl` FOLDER
  8. */

  10. #if 1 /*Set it to "1" to enable content*/

  12. #ifndef LV_CONF_H
  13. #define LV_CONF_H
  14. /* clang-format off */

  16. #include

  18. /*====================
  19.    Graphical settings
  20. *====================*/

  22. /* Maximal horizontal and vertical resolution to support by the library.*/
  23. #define LV_HOR_RES_MAX          (320)  //320
  24. #define LV_VER_RES_MAX          (480)  //480

  26. /* Color depth:
  27. * - 1:  1 byte per pixel
  28. * - 8:  RGB233
  29. * - 16: RGB565
  30. * - 32: ARGB8888
  31. */
  32. #define LV_COLOR_DEPTH     16

  34. /* Swap the 2 bytes of RGB565 color.
  35. * Useful if the display has a 8 bit interface (e.g. SPI)*/
  36. #define LV_COLOR_16_SWAP   0

  38. /* 1: Enable screen transparency.
  39. * Useful for OSD or other overlapping GUIs.
  40. * Requires `LV_COLOR_DEPTH = 32` colors and the screen's style should be modified: `style.body.opa = ...`*/
  41. #define LV_COLOR_SCREEN_TRANSP    0

  43. /*Images pixels with this color will not be drawn (with chroma keying)*/
  44. #define LV_COLOR_TRANSP    LV_COLOR_LIME         /*LV_COLOR_LIME: pure green*/

  46. /* Enable anti-aliasing (lines, and radiuses will be smoothed) */
  47. #define LV_ANTIALIAS        1

  49. /* Default display refresh period.
  50. * Can be changed in the display driver (`lv_disp_drv_t`).*/
  51. #define LV_DISP_DEF_REFR_PERIOD      30      /*[ms]*/

  53. /* Dot Per Inch: used to initialize default sizes.
  54. * E.g. a button with width = LV_DPI / 2 -> half inch wide
  55. * (Not so important, you can adjust it to modify default sizes and spaces)*/
  56. #define LV_DPI              60     /*[px]*/

  58. /* Type of coordinates. Should be `int16_t` (or `int32_t` for extreme cases) */
  59. typedef int16_t lv_coord_t;

  61. /*=========================
  62.    Memory manager settings
  63. *=========================*/

  65. /* LittelvGL's internal memory manager's settings.
  66. * The graphical objects and other related data are stored here. */

  68. /* 1: use custom malloc/free, 0: use the built-in `lv_mem_alloc` and `lv_mem_free` */
  69. #define LV_MEM_CUSTOM      0
  70. #if LV_MEM_CUSTOM == 0
  71. /* Size of the memory used by `lv_mem_alloc` in bytes (>= 2kB)*/
  72. #  define LV_MEM_SIZE    (16U * 1024U)

  74. /* Complier prefix for a big array declaration */
  75. #  define LV_MEM_ATTR

  77. /* Set an address for the memory pool instead of allocating it as an array.
  78. * Can be in external SRAM too. */
  79. #  define LV_MEM_ADR          0

  81. /* Automatically defrag. on free. Defrag. means joining the adjacent free cells. */
  82. #  define LV_MEM_AUTO_DEFRAG  1
  83. #else       /*LV_MEM_CUSTOM*/
  84. #  define LV_MEM_CUSTOM_INCLUDE    /*Header for the dynamic memory function*/
  85. #  define LV_MEM_CUSTOM_ALLOC   malloc       /*Wrapper to malloc*/
  86. #  define LV_MEM_CUSTOM_FREE    free         /*Wrapper to free*/
  87. #endif     /*LV_MEM_CUSTOM*/

  89. /* Garbage Collector settings
  90. * Used if lvgl is binded to higher level language and the memory is managed by that language */
  91. #define LV_ENABLE_GC 0
  92. #if LV_ENABLE_GC != 0
  93. #  define LV_GC_INCLUDE "gc.h"                           /*Include Garbage Collector related things*/
  94. #  define LV_MEM_CUSTOM_REALLOC   your_realloc           /*Wrapper to realloc*/
  95. #  define LV_MEM_CUSTOM_GET_SIZE  your_mem_get_size      /*Wrapper to lv_mem_get_size*/
  96. #endif /* LV_ENABLE_GC */

  98. /*=======================
  99.    Input device settings
  100. *=======================*/

  102. /* Input device default settings.
  103. * Can be changed in the Input device driver (`lv_indev_drv_t`)*/

  105. /* Input device read period in milliseconds */
  106. #define LV_INDEV_DEF_READ_PERIOD          30

  108. /* Drag threshold in pixels */
  109. #define LV_INDEV_DEF_DRAG_LIMIT           10

  111. /* Drag throw slow-down in [%]. Greater value -> faster slow-down */
  112. #define LV_INDEV_DEF_DRAG_THROW           20

  114. /* Long press time in milliseconds.
  115. * Time to send `LV_EVENT_LONG_PRESSSED`) */
  116. #define LV_INDEV_DEF_LONG_PRESS_TIME      400

  118. /* Repeated trigger period in long press [ms]
  119. * Time between `LV_EVENT_LONG_PRESSED_REPEAT */
  120. #define LV_INDEV_DEF_LONG_PRESS_REP_TIME  100

  122. /*==================
  123. * Feature usage
  124. *==================*/

  126. /*1: Enable the Animations */
  127. #define LV_USE_ANIMATION        1
  128. #if LV_USE_ANIMATION

  130. /*Declare the type of the user data of animations (can be e.g. `void *`, `int`, `struct`)*/
  131. typedef void * lv_anim_user_data_t;

  133. #endif

  135. /* 1: Enable shadow drawing*/
  136. #define LV_USE_SHADOW           1

  138. /* 1: Enable object groups (for keyboard/encoder navigation) */
  139. #define LV_USE_GROUP            1
  140. #if LV_USE_GROUP
  141. typedef void * lv_group_user_data_t;
  142. #endif  /*LV_USE_GROUP*/

  144. /* 1: Enable GPU interface*/
  145. #define LV_USE_GPU              0

  147. /* 1: Enable file system (might be required for images */
  148. #define LV_USE_FILESYSTEM       0
  149. #if LV_USE_FILESYSTEM
  150. /*Declare the type of the user data of file system drivers (can be e.g. `void *`, `int`, `struct`)*/
  151. typedef void * lv_fs_drv_user_data_t;
  152. #endif

  154. /*1: Add a `user_data` to drivers and objects*/
  155. #define LV_USE_USER_DATA        0

  157. /*========================
  158. * Image decoder and cache
  159. *========================*/

  161. /* 1: Enable indexed (palette) images */
  162. #define LV_IMG_CF_INDEXED       1

  164. /* 1: Enable alpha indexed images */
  165. #define LV_IMG_CF_ALPHA         1

  167. /* Default image cache size. Image caching keeps the images opened.
  168. * If only the built-in image formats are used there is no real advantage of caching.
  169. * (I.e. no new image decoder is added)
  170. * With complex image decoders (e.g. PNG or JPG) caching can save the continuous open/decode of images.
  171. * However the opened images might consume additional RAM.
  172. * LV_IMG_CACHE_DEF_SIZE must be >= 1 */
  173. #define LV_IMG_CACHE_DEF_SIZE       1

  175. /*Declare the type of the user data of image decoder (can be e.g. `void *`, `int`, `struct`)*/
  176. typedef void * lv_img_decoder_user_data_t;

  178. /*=====================
  179. *  Compiler settings
  180. *====================*/
  181. /* Define a custom attribute to `lv_tick_inc` function */
  182. #define LV_ATTRIBUTE_TICK_INC

  184. /* Define a custom attribute to `lv_task_handler` function */
  185. #define LV_ATTRIBUTE_TASK_HANDLER

  187. /* With size optimization (-Os) the compiler might not align data to
  188. * 4 or 8 byte boundary. This alignment will be explicitly applied where needed.
  189. * E.g. __attribute__((aligned(4))) */
  190. #define LV_ATTRIBUTE_MEM_ALIGN

  192. /* Attribute to mark large constant arrays for example
  193. * font's bitmaps */
  194. #define LV_ATTRIBUTE_LARGE_CONST       

  196. /*===================
  197. *  HAL settings
  198. *==================*/

  200. /* 1: use a custom tick source.
  201. * It removes the need to manually update the tick with `lv_tick_inc`) */
  202. #define LV_TICK_CUSTOM     0
  203. #if LV_TICK_CUSTOM == 1
  204. #define LV_TICK_CUSTOM_INCLUDE  "something.h"       /*Header for the sys time function*/
  205. #define LV_TICK_CUSTOM_SYS_TIME_EXPR (millis())     /*Expression evaluating to current systime in ms*/
  206. #endif   /*LV_TICK_CUSTOM*/

  208. typedef void * lv_disp_drv_user_data_t;             /*Type of user data in the display driver*/
  209. typedef void * lv_indev_drv_user_data_t;            /*Type of user data in the input device driver*/

  211. /*================
  212. * Log settings
  213. *===============*/

  215. /*1: Enable the log module*/
  216. #define LV_USE_LOG      0
  217. #if LV_USE_LOG
  218. /* How important log should be added:
  219. * LV_LOG_LEVEL_TRACE       A lot of logs to give detailed information
  220. * LV_LOG_LEVEL_INFO        Log important events
  221. * LV_LOG_LEVEL_WARN        Log if something unwanted happened but didn't cause a problem
  222. * LV_LOG_LEVEL_ERROR       Only critical issue, when the system may fail
  223. * LV_LOG_LEVEL_NONE        Do not log anything
  224. */
  225. #  define LV_LOG_LEVEL    LV_LOG_LEVEL_WARN

  227. /* 1: Print the log with 'printf';
  228. * 0: user need to register a callback with `lv_log_register_print`*/
  229. #  define LV_LOG_PRINTF   0
  230. #endif  /*LV_USE_LOG*/

  232. /*================
  233. *  THEME USAGE
  234. *================*/
  235. #define LV_THEME_LIVE_UPDATE    1   /*1: Allow theme switching at run time. Uses 8..10 kB of RAM*/

  237. #define LV_USE_THEME_TEMPL      1   /*Just for test*/
  238. #define LV_USE_THEME_DEFAULT    1   /*Built mainly from the built-in styles. Consumes very few RAM*/
  239. #define LV_USE_THEME_ALIEN      1   /*Dark futuristic theme*/
  240. #define LV_USE_THEME_NIGHT      1   /*Dark elegant theme*/
  241. #define LV_USE_THEME_MONO       1   /*Mono color theme for monochrome displays*/
  242. #define LV_USE_THEME_MATERIAL   1   /*Flat theme with bold colors and light shadows*/
  243. #define LV_USE_THEME_ZEN        1   /*Peaceful, mainly light theme */
  244. #define LV_USE_THEME_NEMO       1   /*Water-like theme based on the movie "Finding Nemo"*/

  246. /*==================
  247. *    FONT USAGE
  248. *===================*/

  250. /* The built-in fonts contains the ASCII range and some Symbols with  4 bit-per-pixel.
  251. * The symbols are available via `LV_SYMBOL_...` defines
  252. * More info about fonts: https://docs.littlevgl.com/#Fonts
  253. * To create a new font go to: https://littlevgl.com/ttf-font-to-c-array
  254. */

  256. /* Robot fonts with bpp = 4
  257. * https://fonts.google.com/specimen/Roboto  */
  258. #define LV_FONT_ROBOTO_12    0
  259. #define LV_FONT_ROBOTO_16    1
  260. #define LV_FONT_ROBOTO_22    0
  261. #define LV_FONT_ROBOTO_28    0

  263. /*Pixel perfect monospace font
  264. * http://pelulamu.net/unscii/ */
  265. #define LV_FONT_UNSCII_8     0

  267. /* Optionally declare your custom fonts here.
  268. * You can use these fonts as default font too
  269. * and they will be available globally. E.g.
  270. * #define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(my_font_1)
  271. *                                LV_FONT_DECLARE(my_font_2)
  272. */
  273. #define LV_FONT_CUSTOM_DECLARE

  275. /*Always set a default font from the built-in fonts*/
  276. #define LV_FONT_DEFAULT        &lv_font_roboto_16

  278. /* Enable it if you have fonts with a lot of characters.
  279. * The limit depends on the font size, font face and bpp
  280. * but with > 10,000 characters if you see issues probably you need to enable it.*/
  281. #define LV_FONT_FMT_TXT_LARGE   0

  283. /*Declare the type of the user data of fonts (can be e.g. `void *`, `int`, `struct`)*/
  284. typedef void * lv_font_user_data_t;

  286. /*=================
  287. *  Text settings
  288. *=================*/

  290. /* Select a character encoding for strings.
  291. * Your IDE or editor should have the same character encoding
  292. * - LV_TXT_ENC_UTF8
  293. * - LV_TXT_ENC_ASCII
  294. * */
  295. #define LV_TXT_ENC LV_TXT_ENC_UTF8

  297. /*Can break (wrap) texts on these chars*/
  298. #define LV_TXT_BREAK_CHARS                  " ,.;:-_"

  300. /*===================
  301. *  LV_OBJ SETTINGS
  302. *==================*/

  304. /*Declare the type of the user data of object (can be e.g. `void *`, `int`, `struct`)*/
  305. typedef void * lv_obj_user_data_t;

  307. /*1: enable `lv_obj_realaign()` based on `lv_obj_align()` parameters*/
  308. #define LV_USE_OBJ_REALIGN          1

  310. /* Enable to make the object clickable on a larger area.
  311. * LV_EXT_CLICK_AREA_OFF or 0: Disable this feature
  312. * LV_EXT_CLICK_AREA_TINY: The extra area can be adjusted horizontally and vertically (0..255 px)
  313. * LV_EXT_CLICK_AREA_FULL: The extra area can be adjusted in all 4 directions (-32k..+32k px)
  314. */
  315. #define LV_USE_EXT_CLICK_AREA  LV_EXT_CLICK_AREA_OFF

  317. /*==================
  318. *  LV OBJ X USAGE
  319. *================*/
  320. /*
  321. * Documentation of the object types: https://docs.littlevgl.com/#Object-types
  322. */

  324. /*Arc (dependencies: -)*/
  325. #define LV_USE_ARC      1

  327. /*Bar (dependencies: -)*/
  328. #define LV_USE_BAR      1

  330. /*Button (dependencies: lv_cont*/
  331. #define LV_USE_BTN      1
  332. #if LV_USE_BTN != 0
  333. /*Enable button-state animations - draw a circle on click (dependencies: LV_USE_ANIMATION)*/
  334. #  define LV_BTN_INK_EFFECT   0
  335. #endif

  337. /*Button matrix (dependencies: -)*/
  338. #define LV_USE_BTNM     1

  340. /*Calendar (dependencies: -)*/
  341. #define LV_USE_CALENDAR 1

  343. /*Canvas (dependencies: lv_img)*/
  344. #define LV_USE_CANVAS   1

  346. /*Check box (dependencies: lv_btn, lv_label)*/
  347. #define LV_USE_CB       1

  349. /*Chart (dependencies: -)*/
  350. #define LV_USE_CHART    1
  351. #if LV_USE_CHART
  352. #  define LV_CHART_AXIS_TICK_LABEL_MAX_LEN    20
  353. #endif

  355. /*Container (dependencies: -*/
  356. #define LV_USE_CONT     1

  358. /*Drop down list (dependencies: lv_page, lv_label, lv_symbol_def.h)*/
  359. #define LV_USE_DDLIST    1
  360. #if LV_USE_DDLIST != 0
  361. /*Open and close default animation time [ms] (0: no animation)*/
  362. #  define LV_DDLIST_DEF_ANIM_TIME     200
  363. #endif

  365. /*Gauge (dependencies:lv_bar, lv_lmeter)*/
  366. #define LV_USE_GAUGE    1

  368. /*Image (dependencies: lv_label*/
  369. #define LV_USE_IMG      1

  371. /*Image Button (dependencies: lv_btn*/
  372. #define LV_USE_IMGBTN   1
  373. #if LV_USE_IMGBTN
  374. /*1: The imgbtn requires left, mid and right parts and the width can be set freely*/
  375. #  define LV_IMGBTN_TILED 0
  376. #endif

  378. /*Keyboard (dependencies: lv_btnm)*/
  379. #define LV_USE_KB       1

  381. /*Label (dependencies: -*/
  382. #define LV_USE_LABEL    1
  383. #if LV_USE_LABEL != 0
  384. /*Hor, or ver. scroll speed [px/sec] in 'LV_LABEL_LONG_ROLL/ROLL_CIRC' mode*/
  385. #  define LV_LABEL_DEF_SCROLL_SPEED       25

  387. /* Waiting period at beginning/end of animation cycle */
  388. #  define LV_LABEL_WAIT_CHAR_COUNT        3

  390. /*Enable selecting text of the label */
  391. #  define LV_LABEL_TEXT_SEL               0

  393. /*Store extra some info in labels (12 bytes) to speed up drawing of very long texts*/
  394. #  define LV_LABEL_LONG_TXT_HINT          0
  395. #endif

  397. /*LED (dependencies: -)*/
  398. #define LV_USE_LED      1

  400. /*Line (dependencies: -*/
  401. #define LV_USE_LINE     1

  403. /*List (dependencies: lv_page, lv_btn, lv_label, (lv_img optionally for icons ))*/
  404. #define LV_USE_LIST     1
  405. #if LV_USE_LIST != 0
  406. /*Default animation time of focusing to a list element [ms] (0: no animation)  */
  407. #  define LV_LIST_DEF_ANIM_TIME  100
  408. #endif

  410. /*Line meter (dependencies: *;)*/
  411. #define LV_USE_LMETER   1

  413. /*Message box (dependencies: lv_rect, lv_btnm, lv_label)*/
  414. #define LV_USE_MBOX     1

  416. /*Page (dependencies: lv_cont)*/
  417. #define LV_USE_PAGE     1
  418. #if LV_USE_PAGE != 0
  419. /*Focus default animation time [ms] (0: no animation)*/
  420. #  define LV_PAGE_DEF_ANIM_TIME     400
  421. #endif

  423. /*Preload (dependencies: lv_arc, lv_anim)*/
  424. #define LV_USE_PRELOAD      1
  425. #if LV_USE_PRELOAD != 0
  426. #  define LV_PRELOAD_DEF_ARC_LENGTH   60      /*[deg]*/
  427. #  define LV_PRELOAD_DEF_SPIN_TIME    1000    /*[ms]*/
  428. #  define LV_PRELOAD_DEF_ANIM         LV_PRELOAD_TYPE_SPINNING_ARC
  429. #endif

  431. /*Roller (dependencies: lv_ddlist)*/
  432. #define LV_USE_ROLLER    1
  433. #if LV_USE_ROLLER != 0
  434. /*Focus animation time [ms] (0: no animation)*/
  435. #  define LV_ROLLER_DEF_ANIM_TIME     200

  437. /*Number of extra "pages" when the roller is infinite*/
  438. #  define LV_ROLLER_INF_PAGES         7
  439. #endif

  441. /*Slider (dependencies: lv_bar)*/
  442. #define LV_USE_SLIDER    1

  444. /*Spinbox (dependencies: lv_ta)*/
  445. #define LV_USE_SPINBOX       1

  447. /*Switch (dependencies: lv_slider)*/
  448. #define LV_USE_SW       1

  450. /*Text area (dependencies: lv_label, lv_page)*/
  451. #define LV_USE_TA       1
  452. #if LV_USE_TA != 0
  453. #  define LV_TA_DEF_CURSOR_BLINK_TIME 400     /*ms*/
  454. #  define LV_TA_DEF_PWD_SHOW_TIME     1500    /*ms*/
  455. #endif

  457. /*Table (dependencies: lv_label)*/
  458. #define LV_USE_TABLE    1
  459. #if LV_USE_TABLE
  460. #  define LV_TABLE_COL_MAX    12
  461. #endif

  463. /*Tab (dependencies: lv_page, lv_btnm)*/
  464. #define LV_USE_TABVIEW      1
  465. #  if LV_USE_TABVIEW != 0
  466. /*Time of slide animation [ms] (0: no animation)*/
  467. #  define LV_TABVIEW_DEF_ANIM_TIME    300
  468. #endif

  470. /*Tileview (dependencies: lv_page) */
  471. #define LV_USE_TILEVIEW     1
  472. #if LV_USE_TILEVIEW
  473. /*Time of slide animation [ms] (0: no animation)*/
  474. #  define LV_TILEVIEW_DEF_ANIM_TIME   300
  475. #endif

  477. /*Window (dependencies: lv_cont, lv_btn, lv_label, lv_img, lv_page)*/
  478. #define LV_USE_WIN      1

  480. /*==================
  481. * Non-user section
  482. *==================*/

  484. #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)    /* Disable warnings for Visual Studio*/
  485. #  define _CRT_SECURE_NO_WARNINGS
  486. #endif

  488. /*--END OF LV_CONF_H--*/

  490. /*Be sure every define has a default value*/
  491. #include "lvgl/src/lv_conf_checker.h"

  493. #endif /*LV_CONF_H*/

  495. #endif /*End of "Content enable"*/
主要分辨率要选成自己的屏幕对于的，并关闭系统支持~
下面我们对底层进行移植：
主要是LCD驱动及TOUCH驱动，我们把LVGL里面porting文件夹里面的temp进行修改：
其中：
lv_port_dis.c
  1. /**
  2. * @file lv_port_disp.c
  3. *
  4. */

  6. /*Copy this file as "lv_port_disp.c" and set this value to "1" to enable content*/
  7. #if 1

  9. /*********************
  10. *      INCLUDES
  11. *********************/
  12. #include "lv_port_disp.h"
  13. #include "lcd.h"
  14. /*********************
  15. *      DEFINES
  16. *********************/

  18. /**********************
  19. *      TYPEDEFS
  20. **********************/

  22. /**********************
  23. *  STATIC PROTOTYPES
  24. **********************/
  25. static void disp_init(void);

  27. static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p);
  28. #if LV_USE_GPU
  29. static void gpu_blend(lv_color_t * dest, const lv_color_t * src, uint32_t length, lv_opa_t opa);
  30. static void gpu_fill(lv_color_t * dest, uint32_t length, lv_color_t color);
  31. #endif

  33. /**********************
  34. *  STATIC VARIABLES
  35. **********************/

  37. /**********************
  38. *      MACROS
  39. **********************/

  41. /**********************
  42. *   GLOBAL FUNCTIONS
  43. **********************/

  45. void lv_port_disp_init(void)
  46. {
  47.     /*-------------------------
  48.      * Initialize your display
  49.      * -----------------------*/
  50.     disp_init();

  52.     /*-----------------------------
  53.      * Create a buffer for drawing
  54.      *----------------------------*/
  55.     /* Example for 1) */
  56.     static lv_disp_buf_t disp_buf_1;
  57.     static lv_color_t buf1_1[LV_HOR_RES_MAX * 10];                      /*A buffer for 10 rows*/
  58.     lv_disp_buf_init(&disp_buf_1, buf1_1, NULL, LV_HOR_RES_MAX * 10);   /*Initialize the display buffer*/

  60.     /*-----------------------------------
  61.      * Register the display in LittlevGL
  62.      *----------------------------------*/

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

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

  69.     /*Set the resolution of the display*/
  70.                 //适配多个屏幕
  71.     disp_drv.hor_res = lcddev.width;
  72.     disp_drv.ver_res = lcddev.height;
  73.                

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

  78.     /*Set a display buffer*/
  79.     disp_drv.buffer = &disp_buf_1;

  81. #if LV_USE_GPU
  82.     /*Optionally add functions to access the GPU. (Only in buffered mode, LV_VDB_SIZE != 0)*/

  84.     /*Blend two color array using opacity*/
  85.     disp_drv.gpu_blend = gpu_blend;

  87.     /*Fill a memory array with a color*/
  88.     disp_drv.gpu_fill = gpu_fill;
  89. #endif

  91.     /*Finally register the driver*/
  92.     lv_disp_drv_register(&disp_drv);
  93. }

  95. /**********************
  96. *   STATIC FUNCTIONS
  97. **********************/

  99. /* Initialize your display and the required peripherals. */
  100. static void disp_init(void)
  101. {
  102.     /*You code here*/
  103. }

  105. /* Flush the content of the internal buffer the specific area on the display
  106. * You can use DMA or any hardware acceleration to do this operation in the background but
  107. * 'lv_disp_flush_ready()' has to be called when finished. */
  108. static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p)
  109. {
  110.                 LCD_Color_Fill(area->x1,area->y1,area->x2,area->y2,(u16*)color_p);
  111.     /* IMPORTANT!!!
  112.      * Inform the graphics library that you are ready with the flushing*/
  113.     lv_disp_flush_ready(disp_drv);
  114. }


  117. /*OPTIONAL: GPU INTERFACE*/
  118. #if LV_USE_GPU

  120. /* If your MCU has hardware accelerator (GPU) then you can use it to blend to memories using opacity
  121. * It can be used only in buffered mode (LV_VDB_SIZE != 0 in lv_conf.h)*/
  122. static void gpu_blend(lv_disp_drv_t * disp_drv, lv_color_t * dest, const lv_color_t * src, uint32_t length, lv_opa_t opa)
  123. {
  124.     /*It's an example code which should be done by your GPU*/
  125.     uint32_t i;
  126.     for(i = 0; i < length; i++) {
  127.         dest[i] = lv_color_mix(dest[i], src[i], opa);
  128.     }
  129. }

  131. /* If your MCU has hardware accelerator (GPU) then you can use it to fill a memory with a color
  132. * It can be used only in buffered mode (LV_VDB_SIZE != 0 in lv_conf.h)*/
  133. static void gpu_fill_cb(lv_disp_drv_t * disp_drv, lv_color_t * dest_buf, lv_coord_t dest_width,
  134.                     const lv_area_t * fill_area, lv_color_t color);
  135. {
  136.     /*It's an example code which should be done by your GPU*/
  137.     uint32_t x, y;
  138.     dest_buf += dest_width * fill_area->y1; /*Go to the first line*/

  140.     for(y = fill_area->y1; y < fill_area->y2; y++) {
  141.         for(x = fill_area->x1; x < fill_area->x2; x++) {
  142.             dest_buf[x] = color;
  143.         }
  144.         dest_buf+=dest_width;    /*Go to the next line*/
  145.     }
  146. }

  148. #endif  /*LV_USE_GPU*/

  150. #else /* Enable this file at the top */

  152. /* This dummy typedef exists purely to silence -Wpedantic. */
  153. typedef int keep_pedantic_happy;
  154. #endif

lv_port_indev.c
  1. /**
  2. * @file lv_port_indev.c
  3. *
  4. */

  6. /*Copy this file as "lv_port_indev.c" and set this value to "1" to enable content*/
  7. #if 1

  9. /*********************
  10. *      INCLUDES
  11. *********************/
  12. #include "lv_port_indev.h"
  13. #include "touch.h"
  14. /*********************
  15. *      DEFINES
  16. *********************/

  18. /**********************
  19. *      TYPEDEFS
  20. **********************/

  22. /**********************
  23. *  STATIC PROTOTYPES
  24. **********************/

  26. static bool touchpad_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data);



  30. /**********************
  31. *  STATIC VARIABLES
  32. **********************/



  36. /**********************
  37. *      MACROS
  38. **********************/

  40. /**********************
  41. *   GLOBAL FUNCTIONS
  42. **********************/

  44. void lv_port_indev_init(void)
  45. {
  46.     lv_indev_drv_t indev_drv;

  48.     /*------------------
  49.      * Touchpad
  50.      * -----------------*/

  52.     /*Register a touchpad input device*/
  53.     lv_indev_drv_init(&indev_drv);
  54.     indev_drv.type = LV_INDEV_TYPE_POINTER;
  55.     indev_drv.read_cb = touchpad_read;
  56.     lv_indev_drv_register(&indev_drv);
  57. }

  59. /**********************
  60. *   STATIC FUNCTIONS
  61. **********************/

  63. /* Will be called by the library to read the touchpad */
  64. static bool touchpad_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data)
  65. {
  66.                 static uint16_t last_x = 0;
  67.                 static uint16_t last_y = 0;
  68.                 if(tp_dev.sta&TP_PRES_DOWN)//触摸按下了
  69.                 {
  70.                         last_x = tp_dev.x[0];
  71.                         last_y = tp_dev.y[0];
  72.                         data->point.x = last_x;
  73.                         data->point.y = last_y;
  74.                         data->state = LV_INDEV_STATE_PR;
  75.                 }else{
  76.                         data->point.x = last_x;
  77.                         data->point.y = last_y;
  78.                         data->state = LV_INDEV_STATE_REL;
  79.                 }
  80.     /*Return `false` because we are not buffering and no more data to read*/
  81.     return false;
  82. }





  88. #else /* Enable this file at the top */

  90. /* This dummy typedef exists purely to silence -Wpedantic. */
  91. typedef int keep_pedantic_happy;
  92. #endif

在新建一个GUI_APP文件夹，把里面我们要展示的例子，添加进去~
Z7.png
在main函数里面调用：
  1. TIM1_Int_Init(999,119);//定时器初始化(1ms 中断),用于给 lvgl 提供 1ms 的心跳节拍
  2.   LCD_Init();
  3.   tp_dev.init();//触摸初始化

  5.   
  6.   lv_init();                                                //lvgl系统初始化
  7.         lv_port_disp_init();        //lvgl显示接口初始化,放在lv_init()的后面
  8.         lv_port_indev_init();        //lvgl输入接口初始化,放在lv_init()的后面
  9.        
  10.         //通过TEST_NUM的值来选择运行不同的例程
  11.         #if(TEST_NUM==1)
  12.                 demo_create();                       
  13.         #elif(TEST_NUM==2)
  14.                 lv_test_theme_1(lv_theme_night_init(210, NULL));
  15.         #else
  16.                 lv_test_theme_2();
  17.         #endif
  18.        
  19.         while(1)
  20.         {
  21.                 tp_dev.scan(0);
  22.                 lv_task_handler();
  23.         }
编译，查看效果。如前图。好了LVGL的移植就到这了。谢谢大家观看~


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