esp32 s3驱动st7789屏幕
时间: 2023-07-03 18:23:10 浏览: 177
您好!要驱动ST7789屏幕,您可以使用ESP32 S3内置的SPI接口来进行通信。以下是一个简单的代码示例,可以让您开始使用:
```
#include <SPI.h>
// 定义ST7789屏幕的引脚
#define TFT_CS 13
#define TFT_RST 14
#define TFT_DC 15
// 初始化SPI接口
SPIClass spi(HSPI);
void setup() {
// 初始化串口
Serial.begin(9600);
// 初始化ST7789屏幕
pinMode(TFT_CS, OUTPUT);
pinMode(TFT_RST, OUTPUT);
pinMode(TFT_DC, OUTPUT);
digitalWrite(TFT_CS, HIGH);
digitalWrite(TFT_RST, HIGH);
digitalWrite(TFT_DC, HIGH);
spi.begin();
spi.setFrequency(80000000);
// 发送命令设置ST7789屏幕的初始化参数
// 注意:以下参数是示例值,具体值可能需要根据您的屏幕型号进行调整
spiWriteCommand(0x36);
spiWriteData(0x00);
spiWriteCommand(0x3A);
spiWriteData(0x05);
spiWriteCommand(0xB2);
spiWriteData(0x0C);
spiWriteData(0x0C);
spiWriteData(0x00);
spiWriteData(0x33);
spiWriteData(0x33);
spiWriteCommand(0xB7);
spiWriteData(0x35);
spiWriteCommand(0xBB);
spiWriteData(0x19);
spiWriteCommand(0xC0);
spiWriteData(0x2C);
spiWriteCommand(0xC2);
spiWriteData(0x01);
spiWriteCommand(0xC3);
spiWriteData(0x12);
spiWriteCommand(0xC4);
spiWriteData(0x20);
spiWriteCommand(0xC6);
spiWriteData(0x0F);
spiWriteCommand(0xD0);
spiWriteData(0xA4);
spiWriteData(0xA1);
spiWriteCommand(0xE0);
spiWriteData(0xD0);
spiWriteData(0x04);
spiWriteData(0x0D);
spiWriteData(0x11);
spiWriteData(0x13);
spiWriteData(0x2B);
spiWriteData(0x3F);
spiWriteData(0x54);
spiWriteData(0x4C);
spiWriteData(0x18);
spiWriteData(0x0D);
spiWriteData(0x0B);
spiWriteData(0x1F);
spiWriteCommand(0xE1);
spiWriteData(0xD0);
spiWriteData(0x04);
spiWriteData(0x0C);
spiWriteData(0x11);
spiWriteData(0x13);
spiWriteData(0x2C);
spiWriteData(0x3F);
spiWriteData(0x44);
spiWriteData(0x51);
spiWriteData(0x2F);
spiWriteData(0x1F);
spiWriteData(0x1F);
spiWriteData(0x20);
// 发送命令打开ST7789屏幕显示
spiWriteCommand(0x29);
}
void loop() {
// 在屏幕上显示一些内容
spiWriteCommand(0x2A);
spiWriteData(0x00);
spiWriteData(0x00);
spiWriteData(0x00);
spiWriteData(0xEF);
spiWriteCommand(0x2B);
spiWriteData(0x00);
spiWriteData(0x00);
spiWriteData(0x01);
spiWriteData(0x3F);
spiWriteCommand(0x2C);
for (int i = 0; i < 240*320; i++) {
spiWriteData(0xF800); // 红色
}
delay(1000);
}
// 发送命令到ST7789屏幕
void spiWriteCommand(uint8_t cmd) {
digitalWrite(TFT_DC, LOW);
digitalWrite(TFT_CS, LOW);
spi.transfer(cmd);
digitalWrite(TFT_CS, HIGH);
}
// 发送数据到ST7789屏幕
void spiWriteData(uint16_t data) {
digitalWrite(TFT_DC, HIGH);
digitalWrite(TFT_CS, LOW);
spi.transfer16(data);
digitalWrite(TFT_CS, HIGH);
}
```
请注意,上述代码中的参数是示例值,您需要根据自己的ST7789屏幕型号进行适当调整。同时,还需要根据您的具体需求编写代码来控制屏幕显示内容。