1. 测试了屏幕驱动，lvgl,触摸，驱动文件在Lib/Display当中。全部通过(修改了sdkconfig,以适配lvgl)

2. 新增了优雅的C语言错误处理
2025-08-25 11:07:52 +08:00
parent ec33aa0483
commit 7fa73d6183
23 changed files with 4495 additions and 16 deletions
@@ -0,0 +1,127 @@
+#include "LVGL_Driver.h"
+
+static const char *TAG_LVGL = "LVGL";
+
+    
+
+lv_disp_draw_buf_t disp_buf;                                                 // contains internal graphic buffer(s) called draw buffer(s)
+lv_disp_drv_t disp_drv;                                                      // contains callback functions
+lv_indev_drv_t indev_drv;
+
+void example_increase_lvgl_tick(void *arg)
+{
+    /* Tell LVGL how many milliseconds has elapsed */
+    lv_tick_inc(EXAMPLE_LVGL_TICK_PERIOD_MS);
+}
+
+
+void example_lvgl_flush_cb(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_map)
+{
+    esp_lcd_panel_handle_t panel_handle = (esp_lcd_panel_handle_t) drv->user_data;
+    int offsetx1 = area->x1;
+    int offsetx2 = area->x2;
+    int offsety1 = area->y1;
+    int offsety2 = area->y2;
+    // copy a buffer's content to a specific area of the display
+    esp_lcd_panel_draw_bitmap(panel_handle, offsetx1, offsety1, offsetx2 +1, offsety2 + 1, color_map);
+    lv_disp_flush_ready(drv);
+}
+
+/*Read the touchpad*/
+void example_touchpad_read( lv_indev_drv_t * drv, lv_indev_data_t * data )
+{
+    uint16_t touchpad_x[5] = {0};
+    uint16_t touchpad_y[5] = {0};
+    uint8_t touchpad_cnt = 0;
+
+    /* Read touch controller data */
+    esp_lcd_touch_read_data(drv->user_data);
+
+    /* Get coordinates */
+    bool touchpad_pressed = esp_lcd_touch_get_coordinates(drv->user_data, touchpad_x, touchpad_y, NULL, &touchpad_cnt, 5);
+
+    // printf("CCCCCCCCCCCCC=%d  \r\n",touchpad_cnt);
+    if (touchpad_pressed && touchpad_cnt > 0) {
+        data->point.x = touchpad_x[0];
+        data->point.y = touchpad_y[0];
+        data->state = LV_INDEV_STATE_PR;
+        // printf("X=%u Y=%u num=%d \r\n", data->point.x, data->point.y,touchpad_cnt);
+    } else {
+        data->state = LV_INDEV_STATE_REL;
+    }
+   
+}
+/* Rotate display and touch, when rotated screen in LVGL. Called when driver parameters are updated. */
+void example_lvgl_port_update_callback(lv_disp_drv_t *drv)
+{
+    esp_lcd_panel_handle_t panel_handle = (esp_lcd_panel_handle_t) drv->user_data;
+
+    switch (drv->rotated) {
+    case LV_DISP_ROT_NONE:
+        // Rotate LCD display
+        esp_lcd_panel_swap_xy(panel_handle, false);
+        esp_lcd_panel_mirror(panel_handle, true, false);
+        break;
+    case LV_DISP_ROT_90:
+        // Rotate LCD display
+        esp_lcd_panel_swap_xy(panel_handle, true);
+        esp_lcd_panel_mirror(panel_handle, true, true);
+        break;
+    case LV_DISP_ROT_180:
+        // Rotate LCD display
+        esp_lcd_panel_swap_xy(panel_handle, false);
+        esp_lcd_panel_mirror(panel_handle, false, true);
+        break;
+    case LV_DISP_ROT_270:
+        // Rotate LCD display
+        esp_lcd_panel_swap_xy(panel_handle, true);
+        esp_lcd_panel_mirror(panel_handle, false, false);
+        break;
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+lv_disp_t *disp;
+void LVGL_Init(void)
+{
+    ESP_LOGI(TAG_LVGL, "Initialize LVGL library");
+    lv_init();
+    
+    lv_color_t *buf1 = heap_caps_malloc(LVGL_BUF_LEN * sizeof(lv_color_t), MALLOC_CAP_SPIRAM);
+    assert(buf1);
+    lv_color_t *buf2 = heap_caps_malloc(LVGL_BUF_LEN * sizeof(lv_color_t) , MALLOC_CAP_SPIRAM);    
+    assert(buf2);
+    lv_disp_draw_buf_init(&disp_buf, buf1, buf2, LVGL_BUF_LEN);                              // initialize LVGL draw buffers
+
+    ESP_LOGI(TAG_LVGL, "Register display driver to LVGL");
+    lv_disp_drv_init(&disp_drv);                                                                        // Create a new screen object and initialize the associated device
+    disp_drv.hor_res = EXAMPLE_LCD_WIDTH;             
+    disp_drv.ver_res = EXAMPLE_LCD_HEIGHT;                                                     // Horizontal pixel count
+    // disp_drv.rotated = LV_DISP_ROT_90; // 图像旋转                                                            // Vertical axis pixel count
+    disp_drv.flush_cb = example_lvgl_flush_cb;                                                          // Function : copy a buffer's content to a specific area of the display
+    disp_drv.drv_update_cb = example_lvgl_port_update_callback;                                         // Function : Rotate display and touch, when rotated screen in LVGL. Called when driver parameters are updated. 
+    disp_drv.draw_buf = &disp_buf;                                                                      // LVGL will use this buffer(s) to draw the screens contents
+    disp_drv.user_data = panel_handle;                
+    ESP_LOGI(TAG_LVGL,"Register display indev to LVGL");                                                  // Custom display driver user data
+    disp = lv_disp_drv_register(&disp_drv);     
+    
+    lv_indev_drv_init ( &indev_drv );
+    indev_drv.type = LV_INDEV_TYPE_POINTER;
+    indev_drv.disp = disp;
+    indev_drv.read_cb = example_touchpad_read;
+    indev_drv.user_data = tp;
+    lv_indev_drv_register( &indev_drv );
+
+    /********************* LVGL *********************/
+    ESP_LOGI(TAG_LVGL, "Install LVGL tick timer");
+    // Tick interface for LVGL (using esp_timer to generate 2ms periodic event)
+    const esp_timer_create_args_t lvgl_tick_timer_args = {
+        .callback = &example_increase_lvgl_tick,
+        .name = "lvgl_tick"
+    };
+    
+    esp_timer_handle_t lvgl_tick_timer = NULL;
+    ESP_ERROR_CHECK(esp_timer_create(&lvgl_tick_timer_args, &lvgl_tick_timer));
+    ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, EXAMPLE_LVGL_TICK_PERIOD_MS * 1000));
+
+}