全志R128应用开发案例——适配SPI驱动ST7789V2.4寸LCD

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全志R128应用开发案例——适配SPI驱动ST7789V2.4寸LCD [复制链接]

# SPI驱动ST7789V1.47寸LCD

R128 平台提供了 SPI DBI 的 SPI TFT 接口，具有如下特点：

- Supports DBI Type C 3 Line/4 Line Interface Mode
- Supports 2 Data Lane Interface Mode
- Supports data source from CPU or DMA
- Supports RGB111/444/565/666/888 video format
- Maximum resolution of RGB666 240 x 320@30Hz with single data lane
- Maximum resolution of RGB888 240 x 320@60Hz or 320 x 480@30Hz with dual data lane
- Supports tearing effect
- Supports software flexible control video frame rate

同时，提供了 SPILCD 驱动框架以供 SPI 屏幕使用。

此次适配的SPI屏为 `ZJY147S0800TG01`，使用的是 SPI 进行驱动。

![在这里插入图片描述](https://img-blog.csdnimg.cn/ffd187931ac14186a91c7c6faf3fa010.png#pic_center)

引脚配置如下：

| R128 Devkit | TFT 模块 |
| :---------- | :------- |
| PA12  | CS   |
| PA13  | SCL  |
| PA18  | SDA  |
| PA9   | BLK  |
| PA20  | RES  |
| PA19  | DC   |
| 3V3   | VCC  |
| GND   | GND  |

## 载入方案

我们使用的开发板是 R128-Devkit，需要开发 C906 核心的应用程序，所以载入方案选择 `r128s2_module_c906`

```bash
$ source envsetup.sh 
$ lunch_rtos 1
```

![在这里插入图片描述](https://img-blog.csdnimg.cn/4801485782a14909b17729659dc58902.png#pic_center)

## 设置 SPI 驱动

屏幕使用的是SPI驱动，所以需要勾选SPI驱动，运行 `mrtos_menuconfig` 进入配置页面。前往下列地址找到 `SPI Devices`

```c
Drivers Options--->
  soc related device drivers--->
  SPI Devices --->
  -*- enable spi driver
```

![在这里插入图片描述](https://img-blog.csdnimg.cn/7ff1d2956857456eb8a2a9bcd70f2a16.png#pic_center)

### 配置 SPI 引脚

打开你喜欢的编辑器，修改文件：`board/r128s2/module/configs/sys_config.fex`，在这里我们不需要用到 SPI HOLD与SPI WP引脚，注释掉即可。

```
;----------------------------------------------------------------------------------
;SPI controller configuration
;----------------------------------------------------------------------------------
;Please config spi in dts
[spi1]
spi1_used   = 1
spi1_cs_number= 1
spi1_cs_bitmap= 1
spi1_cs0  = port:PA12<6><0><3><default>
spi1_sclk   = port:PA13<6><0><3><default>
spi1_mosi   = port:PA18<6><0><3><default>
spi1_miso   = port:PA21<6><0><3><default>
;spi1_hold   = port:PA19<6><0><2><default>
;spi1_wp   = port:PA20<6><0><2><default>
```

![在这里插入图片描述](https://img-blog.csdnimg.cn/b243dd57d8b448eea1bbd86c5b07867c.png#pic_center)

## 设置 PWM 驱动

屏幕背光使用的是PWM驱动，所以需要勾选PWM驱动，运行 `mrtos_menuconfig` 进入配置页面。前往下列地址找到 `PWM Devices`

```
Drivers Options--->
  soc related device drivers--->
  PWM Devices --->
  -*- enable pwm driver
```

![在这里插入图片描述](https://img-blog.csdnimg.cn/d8cd5a8223ec48dfaf334fc03265a3ec.png#pic_center)

### 配置 PWM 引脚

打开你喜欢的编辑器，修改文件：`board/r128s2/module/configs/sys_config.fex`，增加 PWM1 节点

```
[pwm1]
pwm_used  = 1
pwm_positive  = port:PA9<4><0><3><default>
```

![在这里插入图片描述](https://img-blog.csdnimg.cn/6a13923eaaaa47c0942b465e1c4ec639.png#pic_center)

## 设置 SPI LCD 驱动

SPI LCD 由专门的驱动管理。运行 `mrtos_menuconfig` 进入配置页面。前往下列地址找到 `SPILCD Devices` ，注意同时勾选 `spilcd hal APIs test` 方便测试使用。

```
Drivers Options--->
  soc related device drivers--->
  [*] DISP Driver Support(spi_lcd)
  [*] spilcd hal APIs test
```

![在这里插入图片描述](https://img-blog.csdnimg.cn/5640ea3035a84cf085b5e6c89dc0c546.png#pic_center)

## 编写 SPI LCD 显示屏驱动

### 获取屏幕初始化序列

首先询问屏厂提供驱动源码

![在这里插入图片描述](https://img-blog.csdnimg.cn/e00a1d2b7e9a4136876fedfdfd7bfc6d.png#pic_center)

找到 LCD 的初始化序列代码

![在这里插入图片描述](https://img-blog.csdnimg.cn/195d649816c14869a0b2eb6b8f19ffc6.png#pic_center)

找到屏幕初始化的源码

![在这里插入图片描述](https://img-blog.csdnimg.cn/83b15c7020344844a5e6b97d4ccc3789.png#pic_center)

整理后的初始化代码如下：

```c
LCD_WR_REG(0x11);
delay_ms(120);
LCD_WR_REG(0x36);
LCD_WR_DATA8(0x00);

LCD_WR_REG(0x3A);
LCD_WR_DATA8(0x05);

LCD_WR_REG(0xB2);
LCD_WR_DATA8(0x0C);
LCD_WR_DATA8(0x0C);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x33);
LCD_WR_DATA8(0x33);

LCD_WR_REG(0xB7);
LCD_WR_DATA8(0x35);

LCD_WR_REG(0xBB);
LCD_WR_DATA8(0x35);

LCD_WR_REG(0xC0);
LCD_WR_DATA8(0x2C);

LCD_WR_REG(0xC2);
LCD_WR_DATA8(0x01);

LCD_WR_REG(0xC3);
LCD_WR_DATA8(0x13);

LCD_WR_REG(0xC4);
LCD_WR_DATA8(0x20);

LCD_WR_REG(0xC6);
LCD_WR_DATA8(0x0F);

LCD_WR_REG(0xD0);
LCD_WR_DATA8(0xA4);
LCD_WR_DATA8(0xA1);

LCD_WR_REG(0xD6);
LCD_WR_DATA8(0xA1);

LCD_WR_REG(0xE0);
LCD_WR_DATA8(0xF0);
LCD_WR_DATA8(0x00);
LCD_WR_DATA8(0x04);
LCD_WR_DATA8(0x04);
LCD_WR_DATA8(0x04);
LCD_WR_DATA8(0x05);
LCD_WR_DATA8(0x29);
LCD_WR_DATA8(0x33);
LCD_WR_DATA8(0x3E);
LCD_WR_DATA8(0x38);
LCD_WR_DATA8(0x12);
LCD_WR_DATA8(0x12);
LCD_WR_DATA8(0x28);
LCD_WR_DATA8(0x30);

LCD_WR_REG(0xE1);
LCD_WR_DATA8(0xF0);
LCD_WR_DATA8(0x07);
LCD_WR_DATA8(0x0A);
LCD_WR_DATA8(0x0D);
LCD_WR_DATA8(0x0B);
LCD_WR_DATA8(0x07);
LCD_WR_DATA8(0x28);
LCD_WR_DATA8(0x33);
LCD_WR_DATA8(0x3E);
LCD_WR_DATA8(0x36);
LCD_WR_DATA8(0x14);
LCD_WR_DATA8(0x14);
LCD_WR_DATA8(0x29);
LCD_WR_DATA8(0x32);

LCD_WR_REG(0x21);

LCD_WR_REG(0x11);
delay_ms(120);
LCD_WR_REG(0x29);
```

### 用现成驱动改写 SPI LCD 驱动

选择一个现成的 SPI LCD 改写即可，这里选择 `nv3029s.c` 驱动来修改

![在这里插入图片描述](https://img-blog.csdnimg.cn/bd25172db1f44447972fc444c7de1014.png#pic_center)

复制这两个驱动，重命名为 `st7789v.c`

![在这里插入图片描述](https://img-blog.csdnimg.cn/ee4ff36ee3c049cca78e78885db6c59f.png#pic_center)

先编辑 `st7789v.h` 将 `nv3029s` 改成 `st7789v`

![在这里插入图片描述](https://img-blog.csdnimg.cn/49a1098bfc8b484c8bf4fecf3880778a.png#pic_center)

```c
#ifndef _ST7789V_H
#define _ST7789V_H

#include "panels.h"

struct __lcd_panel st7789v_panel;

#endif /*End of file*/
```

编辑 `st7789v.c` 将 `nv3029s` 改成 `st7789v`

![在这里插入图片描述](https://img-blog.csdnimg.cn/7d1587c73a4b481c9392d4457323d36f.png#pic_center)

### 编写初始化序列

先删除 `static void LCD_panel_init(unsigned int sel)` 中的初始化函数。

![在这里插入图片描述](https://img-blog.csdnimg.cn/649230e25d424a8299dacca4ebc4789c.png#pic_center)

然后将屏厂提供的初始化序列复制进来

![在这里插入图片描述](https://img-blog.csdnimg.cn/b3120f5779f0431fb2af1033c26ec034.png#pic_center)

然后按照 `spi_lcd` 框架的接口改写驱动接口，具体接口如下

可以直接进行替换

![在这里插入图片描述](https://img-blog.csdnimg.cn/eec9bb811ebd4f588f2dce2930e0e2d4.png#pic_center)

完成后如下

![在这里插入图片描述](https://img-blog.csdnimg.cn/23eeb2cecf0f48e4b7d515ea16f7bccf.png#pic_center)

然后对照屏厂提供的驱动修改 `address` 函数

![在这里插入图片描述](https://img-blog.csdnimg.cn/8745a63572954828b0a7ff6add84a25b.png#pic_center)

做如下修改

```c
static void address(unsigned int sel, int x, int y, int width, int height)
{
    sunxi_lcd_cmd_write(sel, 0x2A); /* Set coloum address */
    sunxi_lcd_para_write(sel, (x + 34) >> 8);
    sunxi_lcd_para_write(sel, (x + 34));
    sunxi_lcd_para_write(sel, (width + 34) >> 8);
    sunxi_lcd_para_write(sel, (width + 34));
    sunxi_lcd_cmd_write(sel, 0x2B); /* Set row address */
    sunxi_lcd_para_write(sel, y >> 8);
    sunxi_lcd_para_write(sel, y);
    sunxi_lcd_para_write(sel, height >> 8);
    sunxi_lcd_para_write(sel, height);
    sunxi_lcd_cmd_write(sel, 0x2c);
}
```

完成驱动如下

```c
#include "st7789v.h"

static void LCD_power_on(u32 sel);
static void LCD_power_off(u32 sel);
static void LCD_bl_open(u32 sel);
static void LCD_bl_close(u32 sel);
static void LCD_panel_init(u32 sel);
static void LCD_panel_exit(u32 sel);
#define RESET(s, v) sunxi_lcd_gpio_set_value(s, 0, v)
#define power_en(sel, val) sunxi_lcd_gpio_set_value(sel, 0, val)

static struct disp_panel_para info[LCD_FB_MAX];

static void address(unsigned int sel, int x, int y, int width, int height)
{
    sunxi_lcd_cmd_write(sel, 0x2A); /* Set coloum address */
    sunxi_lcd_para_write(sel, (x + 34) >> 8);
    sunxi_lcd_para_write(sel, (x + 34));
    sunxi_lcd_para_write(sel, (width + 34) >> 8);
    sunxi_lcd_para_write(sel, (width + 34));
    sunxi_lcd_cmd_write(sel, 0x2B); /* Set row address */
    sunxi_lcd_para_write(sel, y >> 8);
    sunxi_lcd_para_write(sel, y);
    sunxi_lcd_para_write(sel, height >> 8);
    sunxi_lcd_para_write(sel, height);
    sunxi_lcd_cmd_write(sel, 0x2c);
}

static void LCD_panel_init(unsigned int sel)
{
    if (bsp_disp_get_panel_info(sel, &info[sel])) {
        lcd_fb_wrn("get panel info fail!\n");
        return;
    }

sunxi_lcd_cmd_write(sel, 0x11);
    sunxi_lcd_delay_ms(120);
    sunxi_lcd_cmd_write(sel, 0x36);
    sunxi_lcd_para_write(sel, 0x00);

sunxi_lcd_cmd_write(sel, 0x3A);
    sunxi_lcd_para_write(sel, 0x05);

sunxi_lcd_cmd_write(sel, 0xB2);
    sunxi_lcd_para_write(sel, 0x0C);
    sunxi_lcd_para_write(sel, 0x0C);
    sunxi_lcd_para_write(sel, 0x00);
    sunxi_lcd_para_write(sel, 0x33);
    sunxi_lcd_para_write(sel, 0x33);

sunxi_lcd_cmd_write(sel, 0xB7);
    sunxi_lcd_para_write(sel, 0x35);

sunxi_lcd_cmd_write(sel, 0xBB);
    sunxi_lcd_para_write(sel, 0x35);

sunxi_lcd_cmd_write(sel, 0xC0);
    sunxi_lcd_para_write(sel, 0x2C);

sunxi_lcd_cmd_write(sel, 0xC2);
    sunxi_lcd_para_write(sel, 0x01);

sunxi_lcd_cmd_write(sel, 0xC3);
    sunxi_lcd_para_write(sel, 0x13);

sunxi_lcd_cmd_write(sel, 0xC4);
    sunxi_lcd_para_write(sel, 0x20);

sunxi_lcd_cmd_write(sel, 0xC6);
    sunxi_lcd_para_write(sel, 0x0F);

sunxi_lcd_cmd_write(sel, 0xD0);
    sunxi_lcd_para_write(sel, 0xA4);
    sunxi_lcd_para_write(sel, 0xA1);

sunxi_lcd_cmd_write(sel, 0xD6);
    sunxi_lcd_para_write(sel, 0xA1);

sunxi_lcd_cmd_write(sel, 0xE0);
    sunxi_lcd_para_write(sel, 0xF0);
    sunxi_lcd_para_write(sel, 0x00);
    sunxi_lcd_para_write(sel, 0x04);
    sunxi_lcd_para_write(sel, 0x04);
    sunxi_lcd_para_write(sel, 0x04);
    sunxi_lcd_para_write(sel, 0x05);
    sunxi_lcd_para_write(sel, 0x29);
    sunxi_lcd_para_write(sel, 0x33);
    sunxi_lcd_para_write(sel, 0x3E);
    sunxi_lcd_para_write(sel, 0x38);
    sunxi_lcd_para_write(sel, 0x12);
    sunxi_lcd_para_write(sel, 0x12);
    sunxi_lcd_para_write(sel, 0x28);
    sunxi_lcd_para_write(sel, 0x30);

sunxi_lcd_cmd_write(sel, 0xE1);
    sunxi_lcd_para_write(sel, 0xF0);
    sunxi_lcd_para_write(sel, 0x07);
    sunxi_lcd_para_write(sel, 0x0A);
    sunxi_lcd_para_write(sel, 0x0D);
    sunxi_lcd_para_write(sel, 0x0B);
    sunxi_lcd_para_write(sel, 0x07);
    sunxi_lcd_para_write(sel, 0x28);
    sunxi_lcd_para_write(sel, 0x33);
    sunxi_lcd_para_write(sel, 0x3E);
    sunxi_lcd_para_write(sel, 0x36);
    sunxi_lcd_para_write(sel, 0x14);
    sunxi_lcd_para_write(sel, 0x14);
    sunxi_lcd_para_write(sel, 0x29);
    sunxi_lcd_para_write(sel, 0x32);

sunxi_lcd_cmd_write(sel, 0x21);

sunxi_lcd_cmd_write(sel, 0x11);
    sunxi_lcd_delay_ms(120);
    sunxi_lcd_cmd_write(sel, 0x29);

if (info[sel].lcd_x < info[sel].lcd_y)
        address(sel, 0, 0, info[sel].lcd_x - 1, info[sel].lcd_y - 1);
    else
        address(sel, 0, 0, info[sel].lcd_y - 1, info[sel].lcd_x - 1);
}

static void LCD_panel_exit(unsigned int sel)
{
    sunxi_lcd_cmd_write(sel, 0x28);
    sunxi_lcd_delay_ms(20);
    sunxi_lcd_cmd_write(sel, 0x10);
    sunxi_lcd_delay_ms(20);
    sunxi_lcd_pin_cfg(sel, 0);
}

static s32 LCD_open_flow(u32 sel)
{
    lcd_fb_here;
    /* open lcd power, and delay 50ms */
    LCD_OPEN_FUNC(sel, LCD_power_on, 50);
    /* open lcd power, than delay 200ms */
    LCD_OPEN_FUNC(sel, LCD_panel_init, 200);

LCD_OPEN_FUNC(sel, lcd_fb_black_screen, 50);
    /* open lcd backlight, and delay 0ms */
    LCD_OPEN_FUNC(sel, LCD_bl_open, 0);

return 0;
}

static s32 LCD_close_flow(u32 sel)
{
    lcd_fb_here;
    /* close lcd backlight, and delay 0ms */
    LCD_CLOSE_FUNC(sel, LCD_bl_close, 50);
    /* open lcd power, than delay 200ms */
    LCD_CLOSE_FUNC(sel, LCD_panel_exit, 10);
    /* close lcd power, and delay 500ms */
    LCD_CLOSE_FUNC(sel, LCD_power_off, 10);

return 0;
}

static void LCD_power_on(u32 sel)
{
    /* config lcd_power pin to open lcd power0 */
    lcd_fb_here;
    power_en(sel, 1);

sunxi_lcd_power_enable(sel, 0);

sunxi_lcd_pin_cfg(sel, 1);
    RESET(sel, 1);
    sunxi_lcd_delay_ms(100);
    RESET(sel, 0);
    sunxi_lcd_delay_ms(100);
    RESET(sel, 1);
}

static void LCD_power_off(u32 sel)
{
    lcd_fb_here;
    /* config lcd_power pin to close lcd power0 */
    sunxi_lcd_power_disable(sel, 0);
    power_en(sel, 0);
}

static void LCD_bl_open(u32 sel)
{
    sunxi_lcd_pwm_enable(sel);
    /* config lcd_bl_en pin to open lcd backlight */
    sunxi_lcd_backlight_enable(sel);
    lcd_fb_here;
}

static void LCD_bl_close(u32 sel)
{
    /* config lcd_bl_en pin to close lcd backlight */
    sunxi_lcd_backlight_disable(sel);
    sunxi_lcd_pwm_disable(sel);
    lcd_fb_here;
}

/* sel: 0:lcd0; 1:lcd1 */
static s32 LCD_user_defined_func(u32 sel, u32 para1, u32 para2, u32 para3)
{
    lcd_fb_here;
    return 0;
}

static int lcd_set_var(unsigned int sel, struct fb_info *p_info)
{
    return 0;
}

static int lcd_set_addr_win(unsigned int sel, int x, int y, int width, int height)
{
    address(sel, x, y, width, height);
    return 0;
}

static int lcd_blank(unsigned int sel, unsigned int en)
{
    return 0;
}

struct __lcd_panel st7789v_panel = {
  /* panel driver name, must mach the name of lcd_drv_name in sys_config.fex
   */
    .name = "st7789v",
    .func = {
        .cfg_open_flow = LCD_open_flow,
        .cfg_close_flow = LCD_close_flow,
        .lcd_user_defined_func = LCD_user_defined_func,
        .blank = lcd_blank,
        .set_var = lcd_set_var,
        .set_addr_win = lcd_set_addr_win,
    },
};
```

### 对接驱动框架

完成了屏幕驱动的编写，接下来需要对接到 SPILCD 驱动框架。首先编辑 `Kconfig`

![在这里插入图片描述](https://img-blog.csdnimg.cn/728f6f6faf53420cbc67fda2676dd650.png#pic_center)

增加 `st7789v` 的配置

![在这里插入图片描述](https://img-blog.csdnimg.cn/5b29cf35e6b84c018b011488bc7beb9e.png#pic_center)

```
config LCD_SUPPORT_ST7789V
  bool "LCD support st7789v panel"
  default n
  ---help---
  If you want to support st7789v panel for display driver, select it.
```

然后编辑 `panels.c` 在 `panel_array` 里增加 `st7789` 驱动的引用

![在这里插入图片描述](https://img-blog.csdnimg.cn/8bff9d3f8d844f5490e95993823c2963.png#pic_center)

如下图

![在这里插入图片描述](https://img-blog.csdnimg.cn/a2559b3c11034947aeadc5af238d94e1.png#pic_center)

```c
#ifdef CONFIG_LCD_SUPPORT_ST7789V
  &st7789v_panel,
#endif
```

之后编辑 `panels.h` 同样增加引用

![在这里插入图片描述](https://img-blog.csdnimg.cn/ca4005078a3144be8f717ade24edde85.png#pic_center)

如下图

![在这里插入图片描述](https://img-blog.csdnimg.cn/40ea19a9cc684c20a7fe7cceb435dcce.png#pic_center)

```c
#ifdef CONFIG_LCD_SUPPORT_ST7789V
extern struct __lcd_panel st7789v_panel;
#endif
```

最后编辑外层的 `Makefile` 增加编译选项

![在这里插入图片描述](https://img-blog.csdnimg.cn/cbeb0764ffc74565a1e36942a7f2c0d5.png#pic_center)

如下所示

![在这里插入图片描述](https://img-blog.csdnimg.cn/33375feb786d4329ad5121b4bb6f38cb.png#pic_center)

```c
obj-${CONFIG_LCD_SUPPORT_ST7789V} += panels/st7789v.o
```

### 选择 ST7789V 驱动

在 SPILCD 驱动选择界面可以看到 `LCD_FB panels select` 选择 SPI 屏幕的驱动

进入 `LCD_FB panels select` 选项

![在这里插入图片描述](https://img-blog.csdnimg.cn/1e36bba7e2284d8d80f262a83806df04.png#pic_center)

选择并勾选 `[*] LCD support st7789v panel`

![在这里插入图片描述](https://img-blog.csdnimg.cn/b6512aa0503f49dba080bb71c2068bc2.png#pic_center)

### 配置 SPI LCD 引脚

打开你喜欢的编辑器，修改文件：`board/r128s2/module/configs/sys_config.fex`

```
[lcd_fb0]
lcd_used    = 1 
lcd_model_name  = "spilcd" 
lcd_driver_name = "st7789v" 
lcd_x     = 172 
lcd_y     = 320
lcd_width   = 17
lcd_height    = 32
lcd_data_speed  = 50
lcd_pwm_used  = 1
lcd_pwm_ch    = 1
lcd_pwm_freq  = 5000 
lcd_pwm_pol   = 0 
lcd_if    = 0
lcd_pixel_fmt   = 11 
lcd_dbi_fmt   = 2
lcd_dbi_clk_mode  = 1
lcd_dbi_te    = 1
fb_buffer_num   = 2
lcd_dbi_if    = 4
lcd_rgb_order   = 0
lcd_fps     = 60
lcd_spi_bus_num = 1
lcd_frm     = 2
lcd_gamma_en  = 1
lcd_backlight   = 100

lcd_power_num   = 0
lcd_gpio_regu_num = 0
lcd_bl_percent_num= 0

lcd_spi_dc_pin  = port:PA19<1><0><3><0>
;RESET Pin
lcd_gpio_0    = port:PA20<1><0><2><0>
```

## 编译打包

运行命令 `mp` 编译打包，可以看到编译了 `st7789v.o`

![在这里插入图片描述](https://img-blog.csdnimg.cn/5546bd13574d442da72323900ef42e4a.png#pic_center)

## 测试

烧录启动之后，屏幕背光启动，但是屏幕全黑。

![在这里插入图片描述](https://img-blog.csdnimg.cn/196392446bf145c48dc920fa76467e50.png#pic_center)

输入 `test_spilcd` ，屏幕显示黄色。

![在这里插入图片描述](https://img-blog.csdnimg.cn/8c61ee893a494d1b98cda7b917a74e67.png#pic_center)

![在这里插入图片描述](https://img-blog.csdnimg.cn/2bd77fa2c5f3430ca98961af09a876b6.png#pic_center)

输入 `lv_examples 1` 可以显示 `lvgl` 界面

![在这里插入图片描述](https://img-blog.csdnimg.cn/9467c1e6c18e424bae49d5e0409f9d59.png#pic_center)

## 常见问题

### LVGL 出现 DMA Over Size

![在这里插入图片描述](https://img-blog.csdnimg.cn/a7ba18c3b06c47bd92c7651da610a0ae.png#pic_center)

这是由于 LVGL 配置的 `LV_COLOR_DEPTH` 为 32，但是 SPI 屏配置为16位。请修改 `lv_conf.h`

![在这里插入图片描述](https://img-blog.csdnimg.cn/9595c1e03d974b49bb8975941f837142.png#pic_center)

全志R128应用开发案例——适配SPI驱动ST7789V2.4寸LCD [复制链接]

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