模电（一）二极管

开发板芯片：STM32G431RBT6;HAL库开发

比赛的时候资料包里会有LCD驱动例程，可以直接在他的MX文件里配置，注意把时钟树里改为外部时钟（例程里是内部时钟）

基础配置

配置引脚

把图片中的引脚配置为GPIO_Output模式

复制官方头文件

1. 复制官方项目Inc文件夹中的fonts.h和lcd.h到自己根目录的bsp文件夹
2. 复制Src文件夹中的lcd.c文件到bsp文件夹中

添加lcd.c

添加lcd.c到工程bsp文件夹里

添加头文件

在main.c中添加#include "lcd.h"和#include "stdio.h"

查看官方main.c

int main(void)
{
    /* USER CODE BEGIN 1 */

    /* USER CODE END 1 */

    /* MCU Configuration--------------------------------------------------------*/

    /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    HAL_Init();

    /* USER CODE BEGIN Init */

    /* USER CODE END Init */

    /* Configure the system clock */
    SystemClock_Config();

    /* USER CODE BEGIN SysInit */

    /* USER CODE END SysInit */

    /* Initialize all configured peripherals */
    MX_GPIO_Init();
    /* USER CODE BEGIN 2 */

    LCD_Init();
    /* USER CODE END 2 */

    /* Infinite loop */
    /* USER CODE BEGIN WHILE */

    LCD_Clear(Blue);
    LCD_SetBackColor(Blue);
    LCD_SetTextColor(White);


    LCD_DrawLine(120, 0, 320, Horizontal);
    LCD_DrawLine(0, 160, 240, Vertical);
    HAL_Delay(1000);
    LCD_Clear(Blue);

    LCD_DrawRect(70, 210, 100, 100);
    HAL_Delay(1000);
    LCD_Clear(Blue);

    LCD_DrawCircle(120, 160, 50);
    HAL_Delay(1000);

    LCD_Clear(Blue);
    LCD_DisplayStringLine(Line4, (unsigned char *)"    Hello,world.   ");
    HAL_Delay(1000);

    LCD_SetBackColor(White);
    LCD_DisplayStringLine(Line0, (unsigned char *)"                    ");
    LCD_SetBackColor(Black);
    LCD_DisplayStringLine(Line1, (unsigned char *)"                    ");
    LCD_SetBackColor(Grey);
    LCD_DisplayStringLine(Line2, (unsigned char *)"                    ");
    LCD_SetBackColor(Blue);
    LCD_DisplayStringLine(Line3, (unsigned char *)"                    ");
    LCD_SetBackColor(Blue2);
    LCD_DisplayStringLine(Line4, (unsigned char *)"                    ");
    LCD_SetBackColor(Red);
    LCD_DisplayStringLine(Line5, (unsigned char *)"                    ");
    LCD_SetBackColor(Magenta);
    LCD_DisplayStringLine(Line6, (unsigned char *)"                    ");
    LCD_SetBackColor(Green);
    LCD_DisplayStringLine(Line7, (unsigned char *)"                    ");
    LCD_SetBackColor(Cyan);
    LCD_DisplayStringLine(Line8, (unsigned char *)"                    ");
    LCD_SetBackColor(Yellow);
    LCD_DisplayStringLine(Line9, (unsigned char *)"                    ");

    while (1)
    {
        /* USER CODE END WHILE */

        /* USER CODE BEGIN 3 */
    }
    /* USER CODE END 3 */
}

复制LCD_Init();和后面的lcd显示代码到自己的main.c中

设置屏幕颜色

LCD_Clear(Blue);
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);

1. LCD_Clear(Blue);

   • 这行代码的作用是清除LCD屏幕上的内容，并将整个屏幕填充为蓝色（Blue）。

2. LCD_SetBackColor(Blue);

   • 这行代码的作用是设置LCD屏幕的背景颜色为蓝色（Blue）。

3. LCD_SetTextColor(White);

   • 这行代码的作用是设置LCD屏幕上文本的颜色为白色（White）。

在屏幕上打印

char text[30];
uint i=5;
sprintf(text,"  CNBR:%d      ",i);
LCD_DisplayStringLine(Line9, (uint8_t *)text);