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LVGL_Demo

一 软件配置​

以RD_AD100_EVB_V1.0开发板为例 , 屏幕为FW050, 触摸屏为gt9xx, 使用ad100_evb_v10_lvgl_nor_defconfig配置 , 实际根据硬件需要配置

1.1 LCD相关配置​

打开iconfigtool配置页面

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lcd设备配置

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1.2 设备电源管理配置​

因为lcd和tp电源共用一个io, 需要配置下电源管理

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1.3 背光配置​

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pwm相关

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1.4 触摸屏配置​

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i2c配置

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1.5 framebuffer 配置​

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1.6 lvgl配置​

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保存配置

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二 测试程序​

2.1 编写测试程序​

lvgl demo位于freertos/example/third_party/lvgl_example.c

#include "third_party/lvgl/lvgl_ingenic.h"

#include <devices/gt9xx_touch.h>
#include <driver/backlight.h>
#include "third_party/lvgl/lvgl/lvgl.h"
#include "third_party/lvgl/lvgl/examples/lv_examples.h"
#include "third_party/lvgl/lvgl/demos/lv_demos.h"

void backlight_use(void)
{
    struct backlight *lcd_pwm;

#if defined(CONFIG_PWM_BACKLIGHT0_NAME)
    lcd_pwm = backlight_open(CONFIG_PWM_BACKLIGHT0_NAME);
#elif defined(CONFIG_GPIO_BACKLIGHT0_NAME)
    lcd_pwm = backlight_open(CONFIG_GPIO_BACKLIGHT0_NAME);
#else
    lcd_pwm = backlight_open("lcd_pwm");
#endif

    if (lcd_pwm != NULL)
        backlight_set_brightness(lcd_pwm, backlight_get_maxbrightness(lcd_pwm));

}

void lvgl_test(void)
{
    const char *fb_path = "fb0";
    char *device_name = "gt9xx";
    /*该demo以gt9xx触摸屏作为lvgl input*/
    struct goodix_ts_data gt9xx;
    goodix_touch_init(&gt9xx);

    backlight_use();

    lv_init();

    int ret = lvgl_init_fb_display(fb_path);
    assert(!ret);

    ret = lvgl_init_tp_input(device_name);
    assert(!ret);

    lv_demo_widgets();

    lvgl_start(5*1000);

}

2.2 编译和使用测试程序​

修改 vendor/vendor.c ，测试lvgl, 内容如下：

#include <stdio.h>
#include  <../example/third_party/lvgl_example.c>
#include <common.h>

void vendor_init(void *arg)
{
    lvgl_test();           
    printf("vendor init...\n");
     
}

三 编译和烧录​

bhu@bhu-PC:~/rtos$ cd freertos                      
bhu@bhu-PC:~/rtos/freertos$  source build/envsetup.sh        //第一次编译需要初始化编译环境
bhu@bhu-PC:~/rtos/freertos$ make ad100_evb_v10_lvgl_nor_defconfig
bhu@bhu-PC:~/rtos/freertos$ make 
bhu@bhu-PC:~/rtos/freertos$ ls rtos-with-spl.bin 
rtos-with-spl.bin                                           //编译出来的文件

请使用最新版烧录工具

ubuntu版本烧录工具请下载

windows版本烧录工具请下载

烧录配置

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点击开始以后，按住BOOT_KEY键不放，再按下RST_KEY以后松手，就可以进入烧录模式，然后再把BOOT_KEY键松开，等待烧录完毕以后即可

四 测试验证​

U-Boot SPL 2013.07-00035-gc0c7a2ebd-dirty (Dec 27 2023 - 11:45:03)
ERROR EPC fffff35e
CPA_CPAPCR:0320490d
CPM_CPMPCR:0320490d
CPM_CPEPCR:0190510d
CPM_CPCCR:9a073310
DDR: M14F5121632A type is : DDR2
GD25B512ME 00c8471a 00c8471a
[0.000092] pwm clk rate 1200000000
[0.003623] <<-GTP-INFO->> GTP Driver Version: V2.4.0.1<2016/10/26>
[0.003851] <<-GTP-INFO->> GTP Driver Built@15:47:32, Jan 26 2024
[0.004082] <<-GTP-INFO->> Guitar reset
[0.096477] <<-GTP-INFO->> IC Version: 911_1060
[0.096909] <<-GTP-INFO->> Sensor_ID: 0
[0.097042] <<-GTP-INFO->> Config group0 used,length: 186
[0.097507] <<-GTP-INFO->> X_MAX: 720, Y_MAX: 1280, TRIGGER: 0x01

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