用户手册LCD例程使用问题

发布于 2024-05-18 11:58:14 浏览：425 订阅该版

使用用户手册中LCD显示的例程时
![用户手册.png](https://oss-club.rt-thread.org/uploads/20240518/022199aec2d4f64f89e592e93a7e174f.png.webp)
出现报错
![报错.png](https://oss-club.rt-thread.org/uploads/20240518/7b996b83de37e83654ac6df219f276dd.png)
将地址添加到include中后
![屏幕截图 2024-05-18 115512.png](https://oss-club.rt-thread.org/uploads/20240518/bdb888a093d4901b820a30cc3ea920ff.png.webp)
再次报错函数无定义
![屏幕截图 2024-05-18 115601.png](https://oss-club.rt-thread.org/uploads/20240518/6ad67b5dadffb22840bdde6e5731b202.png)

```c
/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2023-5-10      ShiHao       first version
 */

#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>

#include <drv_lcd.h>
#include <rttlogo.h>

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

int main(void)
{
    lcd_clear(WHITE);

/* show RT-Thread logo */
    lcd_show_image(0, 0, 240, 69, image_rttlogo);

/* set the background color and foreground color */
    lcd_set_color(WHITE, BLACK);

/* show some string on lcd */
    lcd_show_string(10, 69, 16, "Hello, RT-Thread!");
    lcd_show_string(10, 69 + 16, 24, "RT-Thread");
    lcd_show_string(10, 69 + 16 + 24, 32, "RT-Thread");

/* draw a line on lcd */
    lcd_draw_line(0, 69 + 16 + 24 + 32, 240, 69 + 16 + 24 + 32);

/* draw a concentric circles */
    lcd_draw_point(120, 194);
    for (int i = 0; i < 46; i += 4)
    {
        lcd_draw_circle(120, 194, i);
    }
    return 0;
}

```