828F/applications/lvgl/lv__user_gui.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2025-11-25     Administrator       the first version
 */
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#include "lvgl.h"

#define DBG_TAG "gui"
#define DBG_LVL DBG_LOG
#include <rtdbg.h>

#define LCD_BL_PIN GET_PIN(D,12)
#define LCD_RST_PIN GET_PIN(D,11)

void lv_user_gui_init(void)
{
   // rt_pin_mode(LCD_BL_PIN, PIN_MODE_OUTPUT);
  //  rt_pin_write( LCD_BL_PIN, PIN_HIGH);
   // rt_pin_mIN, ode(LCD_RST_PIN, PIN_MODE_OUTPUT);
   // rt_pin_write( LCD_RST_PPIN_LOW);

    // 检查 LTDC 是否全局使能
    if (LTDC->GCR & LTDC_GCR_LTDCEN)
    {
        LOG_D("LTDC is ENABLED");
    }
    else
    {
        LOG_E("LTDC is NOT enabled!");
    }

    // 检查图层 0 是否使能
    if (LTDC_Layer1->CR & LTDC_LxCR_LEN)
    {
        LOG_D("Layer 0 is ENABLED");
    }
    else
    {
        LOG_E("Layer 0 is NOT enabled!");
    }
    if (__HAL_RCC_LTDC_IS_CLK_ENABLED())
    {
        LOG_D("LTDC clock is enabled");
    }
    else
    {
        LOG_E("LTDC clock is DISABLED! <-- This is likely the root cause");
    }


  //  lv_obj_t *label = lv_label_create(lv_scr_act());
  //  lv_label_set_text(label, "Hello LVGL on RT-Thread!");
  //  lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
}
//INIT_APP_EXPORT(lv_user_gui_init);