使用STM32写一段控制屏幕显示的代码
时间: 2024-10-18 21:09:08 浏览: 32
在STM32微控制器上,控制屏幕通常涉及到LCD(液晶显示器)控制,例如ILI9341驱动的TFT屏。这是一个基本的例子,展示如何初始化和设置字符画笔颜色来显示文本:
```c
#include "stm32f4xx_hal.h"
#include "ili9341.h" // 假设已经包含了 ili9341库
// 初始化屏幕
void LCD_Init(void) {
GPIO_InitTypeDef GPIO_InitStruct;
ILI9341_Init(); // 库函数来配置GPIO和寄存器地址
// 设置RGB色彩模式
ILI9341_SetColorMode(ILI9341_COLOR_MODE_RGB565);
// 显示开启并清屏
ILI9341_Cmd(ILI9341_FUNCTIONality);
ILI9341_Cmd(ILI9341_SoftReset); // 软重置
HAL_Delay(200);
}
// 设置画笔颜色
void LCD_SetColor(uint16_t color) {
uint8_t r = (color >> 11) & 0b00001111; // 红色分量
uint8_t g = (color >> 5) & 0b00011111; // 绿色分量
uint8_t b = (color >> 0) & 0b00011111; // 蓝色分量
ILI9341_TouchColor(r, g, b); // 设置颜色
}
// 显示文本
void LCD_DisplayText(char* text, int x, int y) {
while(*text != '\0') { // 遍历字符串
ILI9341_DrawString(x, y, *text, WHITE); // 绘制单个字符,这里假设WHITE是预定义的颜色常量
x += 8; // 字符宽度为8像素,向右移动8个像素
text++;
}
}
int main() {
LCD_Init();
LCD_SetColor(WHITE);
LCD_DisplayText("Hello, STM32!", 0, 0);
//... 其他操作和循环
while (1) {
// 这里可以添加处理用户输入或其他定时任务
}
return 0;
}
```
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