{"id":415,"date":"2026-05-31T23:17:58","date_gmt":"2026-05-31T15:17:58","guid":{"rendered":"http:\/\/www.millscience.cn\/?p=415"},"modified":"2026-05-31T23:19:14","modified_gmt":"2026-05-31T15:19:14","slug":"lvgltransplantarm","status":"publish","type":"post","link":"https:\/\/www.millscience.cn\/index.php\/lvgltransplantarm\/","title":{"rendered":"LVGL\u56fe\u5f62\u5e93\u79fb\u690darm\u5e73\u53f0"},"content":{"rendered":"\n

0.\u4e3a\u4ec0\u4e48\u9700\u8981\u201c\u989d\u5916\u201d\u7684\u6e90\u7801\u5305\uff1f<\/h1>\n\n\n\n

$LVGL$ \u4e3a\u4e86\u4fdd\u6301\u9ad8\u5ea6\u7684\u53ef\u79fb\u690d\u6027\uff0c\u628a\u56fe\u5f62\u7b97\u6cd5<\/strong>\u548c\u5e95\u5c42\u786c\u4ef6\u9a71\u52a8<\/strong>\u5b8c\u5168\u89e3\u8026\u4e86\u3002<\/p>\n\n\n\n

1. \u6838\u5fc3\u5e93 ($LVGL$)<\/h2>\n\n\n\n

\u8fd9\u662f\u4f60\u8bf4\u7684\u201c\u76f4\u63a5\u4e0b\u7684\u6e90\u7801\u201d\u3002\u5b83\u8d1f\u8d23\u8ba1\u7b97\uff1a<\/p>\n\n\n\n

    \n
  • \u6309\u94ae\u4ec0\u4e48\u65f6\u5019\u8be5\u53d8\u8272\uff1f<\/li>\n\n\n\n
  • \u52a8\u753b\u7684\u8f68\u8ff9\u600e\u4e48\u7b97\uff1f<\/li>\n\n\n\n
  • \u591a\u4e2a\u56fe\u5c42\u600e\u4e48\u53e0\u52a0\uff1f \u4f46\u5b83\u4e0d\u8d1f\u8d23\u9a71\u52a8\u5c4f\u5e55\u3002<\/strong> \u5b83\u53ea\u8f93\u51fa\u4e00\u5806\u4ee3\u8868\u50cf\u7d20\u989c\u8272\u7684\u539f\u59cb\u6570\u636e\u3002<\/li>\n<\/ul>\n\n\n\n

    2. \u9a71\u52a8\u5e93 ($lv_drivers$)<\/h2>\n\n\n\n

    \u8fd9\u5c31\u662f\u8001\u5e08\u4e0b\u8f7d\u7684\u90a3\u4e2a\u5305\u3002\u9488\u5bf9 Linux \u7cfb\u7edf\uff08\u6bd4\u5982\u4f60\u63a5\u89e6\u8fc7\u7684\u5d4c\u5165\u5f0f\u5f00\u53d1\u677f\uff09\uff0c\u6700\u5e38\u7528\u7684\u663e\u793a\u63a5\u53e3\u5c31\u662f \/dev\/fb0<\/code>\uff08Framebuffer\uff09\u3002<\/p>\n\n\n\n

      \n
    • \u5b83\u7684\u4f5c\u7528\uff1a<\/strong> \u63d0\u4f9b\u4e00\u5957\u73b0\u6210\u7684\u4ee3\u7801\uff0c\u544a\u8bc9 $LVGL$ \u5982\u4f55\u6253\u5f00 \/dev\/fb0<\/code> \u8bbe\u5907\u6587\u4ef6\u3001\u5982\u4f55\u8fdb\u884c mmap<\/code> \u5185\u5b58\u6620\u5c04\u3001\u4ee5\u53ca\u5982\u4f55\u628a\u8ba1\u7b97\u597d\u7684\u50cf\u7d20\u6570\u636e\u586b\u8fdb\u663e\u5b58\u3002<\/li>\n\n\n\n
    • \u8f93\u5165\u8bbe\u5907\uff1a<\/strong> \u8fd9\u4e2a\u5305\u91cc\u901a\u5e38\u8fd8\u5305\u542b\u4e86\u89e6\u6478\u5c4f\uff08\/dev\/input\/eventX<\/code>\uff09\u6216\u9f20\u6807\u7684\u9a71\u52a8\u4ee3\u7801\u3002<\/li>\n<\/ul>\n\n\n\n
      \n\n\n\n

      \u79fb\u690d\u8fc7\u7a0b\u4e2d\u7684\u201c\u5206\u5de5\u201d<\/h2>\n\n\n\n

      \u4f60\u63d0\u4f9b\u7684\u622a\u56fe\u4e2d\u5176\u5b9e\u5df2\u7ecf\u5199\u5f97\u5f88\u6e05\u695a\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u8fd9\u4e2a\u903b\u8f91\u4e32\u8d77\u6765\uff1a<\/p>\n\n\n\n

      \u6b65\u9aa4<\/strong><\/th>\u6d89\u53ca\u5185\u5bb9<\/strong><\/th>\u76ee\u7684<\/strong><\/th><\/tr><\/thead>
      \u5408\u5e76\u6e90\u7801<\/strong><\/td>$LVGL$ + $lv_drivers$<\/td>\u628a\u201c\u5927\u8111\u201d\u548c\u201c\u624b\u811a\u201d\u653e\u5728\u540c\u4e00\u4e2a\u9879\u76ee\u6587\u4ef6\u5939\u91cc\u3002<\/td><\/tr>
      \u4fee\u6539 lv_conf.h<\/code><\/strong><\/td>\u6838\u5fc3\u914d\u7f6e<\/td>\u5f00\u542f\u6216\u5173\u95ed $LVGL$ \u7684\u529f\u80fd\uff08\u6bd4\u5982\u662f\u5426\u542f\u7528\u4e2d\u6587\u5b57\u4f53\u3001\u52a8\u753b\u6548\u679c\u7b49\uff09\u3002<\/td><\/tr>
      \u4fee\u6539 lv_drv_conf.h<\/code><\/strong><\/td>\u9a71\u52a8\u914d\u7f6e<\/td>\u5173\u952e\u70b9\uff01<\/strong> \u5728\u8fd9\u91cc\u6307\u5b9a\u4f60\u8981\u7528 USE_FBDEV<\/code>\uff08Framebuffer\uff09\u8fd8\u662f\u5176\u4ed6\u9a71\u52a8\uff0c\u5e76\u544a\u8bc9\u5b83\u8bbe\u5907\u8def\u5f84\u662f\u4e0d\u662f \/dev\/fb0<\/code>\u3002<\/td><\/tr>
      \u7f16\u5199 main.c<\/code><\/strong><\/td>\u903b\u8f91\u521d\u59cb\u5316<\/td>\u5728\u8fd9\u91cc\u8c03\u7528 lv_init()<\/code> \u521d\u59cb\u5316\u5927\u8111\uff0c\u518d\u8c03\u7528\u9a71\u52a8\u521d\u59cb\u5316\u7684\u51fd\u6570\u628a\u4e24\u8005\u201c\u7f1d\u5408\u201d\u5728\u4e00\u8d77\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \n\n\n\n

      \u603b\u7ed3<\/h2>\n\n\n\n

      \u5982\u679c\u4f60\u4e0d\u4e0b\u8f7d\u8fd9\u4e2a lv_drivers<\/code> \u5305\uff0c\u4f60\u5c31\u5f97\u81ea\u5df1\u624b\u5199<\/strong>\u4e00\u5957\u9488\u5bf9 \/dev\/fb0<\/code> \u7684 C \u8bed\u8a00\u4ee3\u7801\uff0c\u53bb\u5b9e\u73b0\u50cf\u7d20\u70b9\u7684\u586b\u5145\u51fd\u6570\u3002\u8001\u5e08\u76f4\u63a5\u4e0b\u8f7d\u5b83\uff0c\u662f\u4e3a\u4e86\u5229\u7528\u73b0\u6210\u7684\u201c\u4e2d\u95f4\u4ef6\u201d\uff0c\u8282\u7701\u9020\u8f6e\u5b50\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n

      1.\u6e90\u7801\u4e0b\u8f7d<\/h1>\n\n\n\n
      \"image-20260501215539934\"\/<\/div><\/figure>\n\n\n\n

      2.\u914d\u7f6e\u6e90\u7801<\/h1>\n\n\n\n

      \u628a\u4e24\u4e2a\u5206\u652f\u6e90\u7801\u5305\u4e0b\u8f7d\u5230\u672c\u5730\u4e4b\u540e\uff0c\u9700\u8981\u5bf9\u4e24\u4e2a\u6e90\u7801\u5305\u8fdb\u884c\u89e3\u538b\uff0c\u518d\u628a\u89e3\u538b\u4e4b\u540e\u7684\u6240\u6709\u5185\u5bb9\u5206\u522b\u62f7\u8d1d\u5230\u5de5\u7a0b\u4e2dlvgl<\/code>\u6587\u4ef6\u5939\u548clvgl_drivers<\/code>\u6587\u4ef6\u5939\u4e2d\u5373\u53ef\u3002<\/p>\n\n\n\n

      \"image-20260501215737801\"\/<\/div><\/figure>\n\n\n\n

      \u5c06lvgl<\/code>\u6587\u4ef6\u5939\u4e0b\u7684lv_conf_template.h<\/code>\u7684\u5185\u5bb9\uff0c\u5168\u90e8\u66ff\u6362\u5230lv_port_linux_frame_buffer-master<\/code>\u6587\u4ef6\u5939\u4e0b\u7684lv_conf.h<\/code>\u6587\u4ef6\u5185<\/p>\n\n\n\n

      \"image-20260501215840803\"\/<\/div><\/figure>\n\n\n\n
      \"image-20260501220012287\"\/<\/div><\/figure>\n\n\n\n

      \u5c06lv_drivers<\/code>\u6587\u4ef6\u5939\u5185\u7684lv_drv_conf_template.h<\/code>\uff0c\u5168\u90e8\u66ff\u6362\u5230lv_port_linux_frame_buffer-master<\/code>\u6587\u4ef6\u5939\u4e0b\u7684lv_drv_conf.h<\/code>\u6587\u4ef6\u5185<\/p>\n\n\n\n

      \"image-20260501220200771\"\/<\/div><\/figure>\n\n\n\n
      \"image-20260501220334027\"\/<\/div><\/figure>\n\n\n\n

      \u4fee\u6539\u53c2\u6570<\/p>\n\n\n\n

      \u5728lv_conf.h<\/code>\u5185\uff0c\u4fee\u6539\u8272\u6df1\u4e3a32\u4f4d\uff0c\u542f\u7528\u6b64\u5934\u6587\u4ef6<\/p>\n\n\n\n

      \"image-20260501223802687\"\/<\/div><\/figure>\n\n\n\n

      \u5728lv_drv_conf.h<\/code>\u5185\uff0c\u542f\u7528USE_FBDEV<\/code>\u5b8f\u5b9a\u4e49\uff0c\u586b\u5165\u4f60\u8981\u542f\u52a8\u7684\u5e27\u7f13\u51b2\u8bbe\u5907\u8def\u5f84<\/p>\n\n\n\n

      \"image-20260501224121964\"\/<\/div><\/figure>\n\n\n\n
      \"image-20260501220834576\"\/<\/div><\/figure>\n\n\n\n

      \u66ff\u6362main\u51fd\u6570<\/p>\n\n\n\n

      #include \"lvgl\/lvgl.h\"\n#include \"lv_drivers\/display\/fbdev.h\"\n#include <unistd.h>\n#define DISP_BUF_SIZE (800*480)\n\nint main(void)\n{\n    \/*LVGL init*\/\n    lv_init();\n\n    \/*Linux frame buffer device init*\/\n    fbdev_init();\n\n   \/*A small buffer for LittlevGL to draw the screen's content*\/\n    static lv_color_t buf[DISP_BUF_SIZE];\n\n    \/*Initialize a descriptor for the buffer*\/\n    static lv_disp_draw_buf_t disp_buf;\n    lv_disp_draw_buf_init(&disp_buf, buf, NULL, DISP_BUF_SIZE);\n\n    \/*Initialize and register a display driver*\/\n    static lv_disp_drv_t disp_drv;\n    lv_disp_drv_init(&disp_drv);\n    disp_drv.draw_buf   = &disp_buf;\n    disp_drv.flush_cb   = fbdev_flush;\n    disp_drv.hor_res    = 800;\n    disp_drv.ver_res    = 480;\n    lv_disp_drv_register(&disp_drv);\n\n    \/*Create a \"Hello world!\" label*\/\n    lv_obj_t * label = lv_label_create(lv_scr_act());\n    lv_label_set_text(label, \"Hello world!\");\n    lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);\n\n    \/*Handle LitlevGL tasks (tickless mode)*\/\n    while(1) {\n        lv_tick_inc(5);\n        lv_timer_handler();\n        usleep(5000);\n    }\n\n    return 0;\n}<\/code><\/pre>\n\n\n\n
      3.\u7f16\u8bd1<\/h1>\n\n\n\n
      \u4ee3\u7801\u653e\u8fdbubuntu\u865a\u62df\u673a\u5185\uff0c\u6267\u884cmake\u5f00\u59cb\u7f16\u8bd1<\/p>\n\n\n\n
      \u7f16\u8bd1\u5b8c\u6210\u540e\uff0c\u6784\u5efa\u7684\u53ef\u6267\u884c\u6587\u4ef6\u5728build\/bin\u76ee\u5f55\u4e0b<\/p>\n\n\n\n
      \u8f93\u5165sudo init 3\u5173\u95ed\u5f53\u524d\u5c4f\u5e55\uff0c\u8fdb\u5165\u5b57\u7b26\u754c\u9762<\/p>\n\n\n\n
      \u8fd0\u884cdemo<\/p>\n\n\n\n
      \"image-20260501223519963\"\/<\/div><\/figure>\n\n\n\n
      \u8f93\u5165sudo init 5\u56de\u5230\u56fe\u5f62\u754c\u9762<\/p>\n\n\n\n
      4.\u79fb\u690darm\u5f00\u53d1\u677f<\/h1>\n\n\n\n
      \u5728lv_drv_conf.h<\/code>\u5185<\/p>\n\n\n\n
      \"image-20260502224831152\"\/<\/div><\/figure>\n\n\n\n
      \u5728Makefile<\/code>\u5185\uff0c\u6ce8\u610f\uff1a\u53bb\u6389-Wshift-negative-value<\/code>\u9009\u9879\uff0c\u8981\u4e0d\u7136\u7f16\u8bd1\u5668\u53ef\u80fd\u8bc6\u522b\u4e0d\u4e86<\/p>\n\n\n\n
      \"image-20260502224948179\"\/<\/div><\/figure>\n\n\n\n
      \u7f16\u8bd1\u540e\uff0c\u67e5\u770b\u6587\u4ef6\u5c5e\u6027\uff0c\u4e3aarm\u5e73\u53f0\u5373\u53ef<\/p>\n\n\n\n
      \"image-20260502225128983\"\/<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"
      0.\u4e3a\u4ec0\u4e48\u9700\u8981\u201c\u989d\u5916\u201d\u7684\u6e90\u7801\u5305\uff1f $LVGL$ \u4e3a\u4e86\u4fdd\u6301\u9ad8\u5ea6\u7684\u53ef\u79fb\u690d\u6027\uff0c\u628a\u56fe\u5f62\u7b97\u6cd5\u548c\u5e95\u5c42\u786c\u4ef6\u9a71\u52a8\u5b8c\u5168\u89e3\u8026\u4e86\u3002  […]<\/p>\n","protected":false},"author":1,"featured_media":430,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,13],"tags":[],"class_list":["post-415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-embedded","category-learning"],"_links":{"self":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts\/415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/comments?post=415"}],"version-history":[{"count":1,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts\/415\/revisions"}],"predecessor-version":[{"id":429,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/posts\/415\/revisions\/429"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/media\/430"}],"wp:attachment":[{"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/media?parent=415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/categories?post=415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.millscience.cn\/index.php\/wp-json\/wp\/v2\/tags?post=415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}