\u5728\u5d4c\u5165\u5f0f\u667a\u80fd\u9762\u677f\u3001\u8f66\u8f7d\u4e2d\u63a7\u3001\u5de5\u4e1a HMI \u7b49 LVGL \u9879\u76ee\u5f00\u53d1\u4e2d，\u7ecf\u5e38\u4f1a\u9047\u5230\u52a8\u753b\u5361\u987f\u3001\u6ed1\u52a8\u6389\u5e27\u3001\u754c\u9762\u54cd\u5e94\u5ef6\u8fdf\u7684\u95ee\u9898，\u5c24\u5176\u5728\u8d44\u6e90\u53d7\u9650\u7684 MCU \u5e73\u53f0（\u5982 STM32F4\u3001ESP32-S3）\u4e0a，\u5e27\u7387\u4e0d\u8db3\u4f1a\u76f4\u63a5\u5f71\u54cd\u7528\u6237\u4f53\u9a8c，\u751a\u81f3\u89e6\u53d1\u4ea4\u4e92\u8d85\u65f6\u3001\u4efb\u52a1\u8c03\u5ea6\u5f02\u5e38\u7b49\u529f\u80fd\u95ee\u9898\u3002\u638c\u63e1 LVGL \u5e27\u7387\u4f18\u5316\u624b\u6bb5\u662f\u5d4c\u5165\u5f0f GUI \u5f00\u53d1\u5de5\u7a0b\u5e08\u7684\u6838\u5fc3\u5fc5\u5907\u6280\u80fd，\u4e5f\u662f\u9762\u8bd5\u4e2d\u9ad8\u9891\u8003\u5bdf\u7684\u5b9e\u6218\u80fd\u529b\u70b9\u3002<\/p>\n
LVGL \u7684\u5e27\u7387\u672c\u8d28\u662f\u5355\u4f4d\u65f6\u95f4\u5185\u5b8c\u6210\u7684\u300c\u6e32\u67d3\u2192\u5237\u5c4f\u300d\u5faa\u73af\u6b21\u6570，\u4f18\u5316\u6838\u5fc3\u662f\u51cf\u5c11\u6bcf\u5e27\u7684 CPU\/GPU \u5360\u7528\u8017\u65f6，\u540c\u65f6\u964d\u4f4e\u6e32\u67d3\u548c\u5237\u5c4f\u7684\u65e0\u6548\u5f00\u9500\u3002\u5e95\u5c42\u903b\u8f91\u5206\u56db\u4e2a\u7ef4\u5ea6：<\/p>\n<\/p>\n
\u8c03\u5ea6\u5c42\u9762：\u5408\u7406\u5206\u914d GUI \u4efb\u52a1\u7684\u4f18\u5148\u7ea7\u548c\u65f6\u95f4\u7247，\u907f\u514d\u5176\u4ed6\u4efb\u52a1\u62a2\u5360 GUI \u7684 CPU \u8d44\u6e90\u3002<\/li>\n![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/11\/20261101125724-6ae737341c593.png\")
<\/p>\n
\u4e09\u3001\u4e09\u9053\u9012\u8fdb\u8ffd\u95ee\u53ca\u7b54\u6848<\/h2>\n\u8ffd\u95ee 1（\u57fa\u7840）：LVGL \u9ed8\u8ba4\u7684\u810f\u77e9\u5f62\u673a\u5236\u662f\u4ec0\u4e48？\u5f00\u542f\u548c\u5173\u95ed\u5bf9\u5e27\u7387\u6709\u4ec0\u4e48\u5f71\u54cd？<\/h4>\n
\u810f\u77e9\u5f62\u673a\u5236\u662f LVGL \u5c06\u754c\u9762\u4e2d\u53d1\u751f\u53d8\u5316\u7684\u533a\u57df\u6807\u8bb0\u4e3a\u300c\u810f\u533a\u300d，\u6bcf\u5e27\u4ec5\u91cd\u7ed8\u8fd9\u4e9b\u533a\u57df\u800c\u975e\u6574\u4e2a\u5c4f\u5e55，\u53ef\u5927\u5e45\u51cf\u5c11\u6e32\u67d3\u91cf\u3002\u5173\u95ed\u540e\u6bcf\u5e27\u4f1a\u91cd\u7ed8\u6574\u4e2a\u5c4f\u5e55，\u6e32\u67d3\u8017\u65f6\u6210\u500d\u589e\u52a0，\u5e27\u7387\u4f1a\u5927\u5e45\u4e0b\u964d，\u901a\u5e38\u53ea\u6709\u5728\u5168\u5c4f\u52a8\u753b\u7b49\u7279\u6b8a\u573a\u666f\u4e0b\u624d\u4f1a\u4e34\u65f6\u5173\u95ed\u4ee5\u907f\u514d\u591a\u810f\u533a\u5408\u5e76\u3001\u591a\u5757\u810f\u533a\u91cd\u590d\u4f20\u8f93\u7684\u5f00\u9500\u3002<\/p>\n<\/p>\n
\u8ffd\u95ee 2（\u8fdb\u9636）：\u5982\u679c\u754c\u9762\u5b58\u5728\u591a\u4e2a\u9891\u7e41\u66f4\u65b0\u7684\u5c0f\u63a7\u4ef6，\u5bfc\u81f4\u810f\u77e9\u5f62\u6570\u91cf\u8fc7\u591a，\u5e94\u8be5\u600e\u4e48\u4f18\u5316？<\/h4>\n
\u9996\u5148\u53ef\u5c06\u591a\u4e2a\u9891\u7e41\u66f4\u65b0\u7684\u63a7\u4ef6\u653e\u5230\u540c\u4e00\u4e2a\u5bb9\u5668\u4e2d，\u7edf\u4e00\u6807\u8bb0\u810f\u533a，\u964d\u4f4e\u810f\u533a\u6570\u91cf；\u5176\u6b21\u8c03\u6574LV_DISP_REFR_PERIOD（\u5237\u65b0\u5468\u671f）\u9002\u5f53\u62c9\u957f\u3001\u589e\u5927LV_DISP_DRAW_BUF_SIZE（\u7ed8\u5236\u7f13\u51b2\u533a\u5927\u5c0f），\u8ba9\u591a\u4e2a\u5c0f\u810f\u533a\u5728\u4e24\u6b21\u5237\u65b0\u95f4\u9694\u5185\u5408\u5e76\u4e3a\u66f4\u5c11\u7684\u5927\u810f\u533a，\u51cf\u5c11\u91cd\u590d\u6e32\u67d3；\u8fd8\u53ef\u5173\u95ed\u4e0d\u5fc5\u8981\u7684\u900f\u660e\u3001\u9634\u5f71\u3001\u5706\u89d2\u7b49\u7279\u6027，\u51cf\u5c11\u5355\u4e2a\u810f\u533a\u7684\u7ed8\u5236\u8017\u65f6\u3002<\/p>\n<\/p>\n
\u8ffd\u95ee 3（\u7efc\u5408）：\u5728 SPI \u63a5\u53e3\u7684 ILI9341 \u5c4f（240*320）\u4e0a\u8dd1 LVGL \u52a8\u753b\u5e27\u7387\u53ea\u6709 15 \u5e27，\u600e\u4e48\u6392\u67e5\u5e76\u4f18\u5316？<\/h4>\n
\u9996\u5148\u6392\u67e5\u786c\u4ef6：\u5c06 SPI \u65f6\u949f\u4ece\u9ed8\u8ba4 10MHz \u63d0\u5347\u5230\u82af\u7247\u548c\u5c4f\u5171\u540c\u652f\u6301\u7684\u6700\u9ad8\u901f\u7387（\u901a\u5e38 30~40MHz，ILI9341 \u6700\u9ad8 SPI \u65f6\u949f\u5178\u578b\u503c\u4e3a 40MHz），\u5f00\u542f SPI DMA \u4f20\u8f93，\u82e5\u786c\u4ef6\u652f\u6301\u5219\u5f00\u542f SPI Quad \u6a21\u5f0f\u8fdb\u4e00\u6b65\u63d0\u5347\u5e26\u5bbd；\u7136\u540e\u4f18\u5316 LVGL \u914d\u7f6e：\u7ed8\u5236\u7f13\u51b2\u533a\u5927\u5c0f\u5efa\u8bae\u8bbe\u4e3a\u81f3\u5c11 10 \u884c，\u82e5 RAM \u8db3\u591f\u53ef\u5f00\u542f\u53cc\u7f13\u51b2（disp_draw_buf2）\u5b9e\u73b0\u6e32\u67d3\u548c\u4f20\u8f93\u5e76\u884c，\u5e73\u53f0\u652f\u6301 GPU \u7684\u8bdd\u5f00\u542fLV_USE_GPU；\u63a5\u7740\u4f18\u5316\u8d44\u6e90：\u56fe\u7247\u7528LV_IMG_CF_TRUE_COLOR（\u4e0d\u9700\u8981\u900f\u660e\u65f6）\u6216LV_IMG_CF_TRUE_COLOR_ALPHA（\u9700\u8981\u900f\u660e\u65f6）\u9884\u89e3\u7801\u6210 C \u6570\u7ec4，\u5b57\u4f53\u7528\u5b50\u96c6\u5316 + \u538b\u7f29\u683c\u5f0f，\u5173\u95ed\u4e0d\u5fc5\u8981\u7684\u9634\u5f71\u3001\u5706\u89d2\u3001\u6e10\u53d8\u7b49\u590d\u6742\u7ed8\u5236\u6548\u679c；\u6700\u540e\u8c03\u5ea6\u5c42\u9762\u5c06 LVGL \u4efb\u52a1\u4f18\u5148\u7ea7\u8bbe\u4e3a\u9ad8\u4e8e\u666e\u901a\u4e1a\u52a1\u4efb\u52a1\u3001\u4f4e\u4e8e\u5b9e\u65f6\u6027\u8981\u6c42\u66f4\u9ad8\u7684\u4e2d\u65ad \/ \u4efb\u52a1，\u786e\u4fdd\u6e32\u67d3\u548c\u5237\u5c4f\u8fc7\u7a0b\u4e0d\u88ab\u957f\u65f6\u95f4\u62a2\u5360\u3002<\/p>\n<\/p>\n
\u56db\u3001\u6700\u5c0f\u9a8c\u8bc1\u5b9e\u9a8c<\/h2>\n4.1 \u5b9e\u9a8c\u73af\u5883<\/h3>\n
PC \u7aef LVGL v8.3 \u4eff\u771f\u73af\u5883（MinGW+SDL2），\u6a21\u62df 320*240 \u5206\u8fa8\u7387\u7684 MCU \u5e73\u53f0\u6027\u80fd\u9650\u5236，\u5173\u95ed GPU \u52a0\u901f\u3002<\/p>\n
4.2 \u5b9e\u9a8c\u4ee3\u7801<\/h3>\n
#include "lvgl\/lvgl.h"
\n#include <stdio.h><\/p>\n
\/* \u5e27\u7387\u7edf\u8ba1\u53d8\u91cf *\/
\nstatic uint32_t last_tick = 0;
\nstatic uint32_t frame_count = 0;
\nstatic int fps = 0;<\/p>\n
\/* \u6bcf\u5e27\u7ed3\u675f\u56de\u8c03，\u7edf\u8ba1\u5e27\u7387 *\/
\nstatic void on_flush_cb(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_p)
\n{
\n frame_count++;
\n uint32_t now = lv_tick_get();
\n if(now – last_tick >= 1000) {
\n fps = frame_count;
\n frame_count = 0;
\n last_tick = now;
\n printf("Current FPS: %d\\\\n", fps);
\n }
\n \/* \u6a21\u62dfSPI\u5237\u5c4f\u8017\u65f6：\u6bcf\u50cf\u7d202\u5b57\u8282（RGB565），20MHz SPI\u7684\u6bd4\u7279\u7387\u4e3a20Mbit\/s，\u4f20\u8f93\u6bcf\u5b57\u8282\u8017\u65f6400ns，\u6bcf\u50cf\u7d20\u8017\u65f6800ns *\/
\n uint32_t px_cnt = (area->x2 – area->x1 + 1) * (area->y2 – area->y1 + 1);
\n lv_delay_us(px_cnt * 800 \/ 1000); \/\/ \u8f6c\u6362\u4e3a\u5fae\u79d2\u7ea7\u5ef6\u8fdf
\n lv_disp_flush_ready(drv);
\n}<\/p>\n
int main(void)
\n{
\n lv_init();
\n \/* \u521d\u59cb\u5316\u663e\u793a\u9a71\u52a8，\u8fd9\u91cc\u7528SDL\u4eff\u771f *\/
\n static lv_disp_draw_buf_t draw_buf;
\n static lv_color_t buf1[320 * 10]; \/* 10\u884c\u7ed8\u5236\u7f13\u51b2\u533a，\u6a21\u62df\u5c0f\u7f13\u5b58 *\/
\n lv_disp_draw_buf_init(&draw_buf, buf1, NULL, 320 * 10);<\/p>\n
static lv_disp_drv_t disp_drv;
\n lv_disp_drv_init(&disp_drv);
\n disp_drv.hor_res = 320;
\n disp_drv.ver_res = 240;
\n disp_drv.flush_cb = on_flush_cb;
\n disp_drv.draw_buf = &draw_buf;
\n lv_disp_drv_register(&disp_drv);<\/p>\n
\/* \u4f18\u53161：\u5f00\u542f\u53cc\u7f13\u51b2，\u6ce8\u91ca\u6389\u5373\u53ef\u5bf9\u6bd4\u6548\u679c *\/
\n \/\/ static lv_color_t buf2[320 * 10];
\n \/\/ lv_disp_draw_buf_init(&draw_buf, buf1, buf2, 320 * 10);<\/p>\n
\/* \u4f18\u53162：\u589e\u5927\u7ed8\u5236\u7f13\u51b2\u533a\u4e3a\u6574\u5c4f，\u6ce8\u91ca\u6389\u5373\u53ef\u5bf9\u6bd4\u6548\u679c *\/
\n \/\/ static lv_color_t buf_full[320 * 240];
\n \/\/ lv_disp_draw_buf_init(&draw_buf, buf_full, NULL, 320 * 240);<\/p>\n
\/* \u521b\u5efa10\u4e2a\u540c\u65f6\u79fb\u52a8\u7684\u6309\u94ae，\u6a21\u62df\u9ad8\u8d1f\u8f7d\u573a\u666f *\/
\n for(int i = 0; i < 10; i++) {
\n lv_obj_t * btn = lv_btn_create(lv_scr_act());
\n lv_obj_set_size(btn, 60, 30);
\n lv_obj_set_pos(btn, 10, i * 35 + 10);
\n \/* \u521b\u5efa\u5de6\u53f3\u79fb\u52a8\u7684\u52a8\u753b *\/
\n lv_anim_t a;
\n lv_anim_init(&a);
\n lv_anim_set_var(&a, btn);
\n lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t)lv_obj_set_x);
\n lv_anim_set_values(&a, 10, 320 – 70);
\n lv_anim_set_time(&a, 2000);
\n lv_anim_set_playback_time(&a, 2000);
\n lv_anim_set_repeat_count(&a, LV_ANIM_REPEAT_INFINITE);
\n lv_anim_start(&a);
\n }<\/p>\n
while(1) {
\n uint32_t start = lv_tick_get();
\n lv_timer_handler();
\n uint32_t elapse = lv_tick_get() – start;
\n \/* \u6a21\u62df5ms tick\u95f4\u9694，\u6263\u9664lv_timer_handler\u8017\u65f6，\u4fdd\u8bc1tick\u6b65\u8fdb\u51c6\u786e *\/
\n lv_tick_inc(5);
\n if(elapse < 5) {
\n lv_delay_ms(5 – elapse);
\n }
\n }
\n return 0;
\n}<\/p>\n
4.3 \u64cd\u4f5c\u6b65\u9aa4<\/h3>\n
\u4f18\u5316\u4f18\u5148\u7ea7：\u786c\u4ef6\u63a5\u53e3\u52a0\u901f（\u63d0\u9ad8\u65f6\u949f\u3001\u5f00\u542f DMA \/ \u786c\u4ef6 SPI）> \u8f6f\u4ef6\u6e32\u67d3 \/ \u8d44\u6e90\u4f18\u5316 > \u8c03\u5ea6\u7b56\u7565\u8c03\u6574，GUI \u4efb\u52a1\u4f18\u5148\u7ea7\u9700\u5e73\u8861\u5b9e\u65f6\u6027\u4e0e\u8d44\u6e90\u5360\u7528，\u907f\u514d\u8fc7\u9ad8\u963b\u585e\u9ad8\u4f18\u5148\u7ea7\u4efb\u52a1\u6216\u8fc7\u4f4e\u5bfc\u81f4 GUI \u5361\u987f\u3002<\/li>\n","protected":false},"excerpt":{"rendered":"\u4e00\u3001\u573a\u666f\u5f15\u5165\u5728\u5d4c\u5165\u5f0f\u667a\u80fd\u9762\u677f\u3001\u8f66\u8f7d\u4e2d\u63a7\u3001\u5de5\u4e1a HMI \u7b49 LVGL \u9879\u76ee\u5f00\u53d1\u4e2d，\u7ecf\u5e38\u4f1a\u9047\u5230\u52a8\u753b\u5361\u987f\u3001\u6ed1\u52a8\u6389\u5e27\u3001\u754c\u9762\u54cd\u5e94\u5ef6\u8fdf\u7684\u95ee\u9898，\u5c24\u5176\u5728\u8d44\u6e90\u53d7\u9650\u7684 MCU \u5e73\u53f0（\u5982 STM32F4\u3001ESP32-S3）\u4e0a，\u5e27\u7387\u4e0d\u8db3\u4f1a\u76f4\u63a5\u5f71\u54cd\u7528\u6237\u4f53\u9a8c，\u751a\u81f3\u89e6\u53d1\u4ea4\u4e92\u8d85\u65f6\u3001\u4efb\u52a1\u8c03\u5ea6\u5f02\u5e38\u7b49\u529f\u80fd\u95ee\u9898\u3002\u638c\u63e1 LVGL \u5e27\u7387\u4f18\u5316\u624b\u6bb5\u662f\u5d4c\u5165\u5f0f GUI \u5f00\u53d1\u5de5\u7a0b\u5e08\u7684\u6838\u5fc3\u5fc5\u5907\u6280\u80fd，\u4e5f\u662f\u9762\u8bd5\u4e2d\u9ad8\u9891\u8003\u5bdf\u7684\u5b9e\u6218\u80fd\u529b\u70b9\u3002\u4e8c\u3001<\/p>\n","protected":false},"author":2,"featured_media":120914,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11820,13834,13832,13833,13836,13835],"topic":[],"class_list":["post-120918","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-atomgit","tag-lvgl-","tag--gui-"],"yoast_head":"\n
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