ESP32C3驱动TFT屏幕 因为使用的是新版esp-generate创建的项目，很多api的使用都大改了，网上能搜到的类似的教程也都完全没法用，这个教程是使用最新版esp-hal基于rust开发esp32c3驱动st7789屏幕。看网上有些项目叫MOSI，MISO的，也有叫SDI，SDO，这两个本质就是一个东西，在不同协议叫法不同。SPI 协议中大家都喜欢叫 MOSI / MISO，有些芯片厂商文档上写的是 SDI / SDO；MOSI == SDI（对于从机）：表示“数据输入”MISO == SDO（对于从机）：表示“数据输出”项目创建在 rust裸机开发esp32c3 的基础上，先新建一个最基础的环境引入依赖[dependencies] critical-section = "1.2.0" esp-hal = { version = "1.0.0-beta.0", features = ["esp32c3","unstable"] } esp-println = { version = "0.13.1",features = ["esp32c3","log"] } log = "0.4.27" # 图形相关 embedded-hal = "1.0.0" embedded-graphics-core = "0.4.0" embedded-graphics = "0.8.1" embedded-graphics-framebuf = "0.5.0" display-interface = "0.5.0" display-interface-spi = "0.5.0" mipidsi = "0.9.0" embedded-hal-bus = "0.3.0" 编写main.rs代码#![no_std] #![no_main] use embedded_graphics::Drawable; use embedded_graphics::image::{Image, ImageRawLE}; use embedded_graphics::pixelcolor::Rgb565; use embedded_graphics::prelude::{DrawTarget, Point, Primitive, RgbColor}; use embedded_graphics::primitives::PrimitiveStyle; use embedded_graphics_core::prelude::Size; use embedded_graphics_core::primitives::Rectangle; use embedded_hal::delay::DelayNs; use embedded_hal::digital::ErrorType; use embedded_hal_bus::spi::ExclusiveDevice; use esp_hal::clock::CpuClock; use esp_hal::delay::Delay; use esp_hal::gpio::{Level, Output, OutputConfig}; use esp_hal::main; use esp_hal::spi::master::{Config, Spi}; use esp_hal::spi::Mode; use esp_hal::time::{Duration, Instant, Rate}; use esp_println::logger::init_logger; use esp_println::println; use log::{error, LevelFilter}; use mipidsi::_mock::MockSpi; use mipidsi::models::ST7789; use mipidsi::Builder; use mipidsi::interface::SpiInterface; use mipidsi::options::Orientation; #[panic_handler] fn panic(e: &core::panic::PanicInfo) -> ! { println!("{}",e); loop { } } #[main] fn main() -> ! { // generator version: 0.3.1 let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max()); init_logger(LevelFilter::Debug); let peripherals = esp_hal::init(config); let mut delay = Delay::new(); let mut rst = Output::new(peripherals.GPIO3,Level::Low,OutputConfig::default()); delay.delay_ms(20); // 保持 RST 为低电平至少 10~20ms rst.set_high(); // 然后再拉高 delay.delay_ms(100); // 拉高后也延迟一下，再继续初始化 let dc = Output::new(peripherals.GPIO4,Level::Low,OutputConfig::default()); let mut backlight = Output::new(peripherals.GPIO5,Level::Low,OutputConfig::default()); let sclk = peripherals.GPIO6; let sda = peripherals.GPIO7; let sdi = peripherals.GPIO8; let cs = peripherals.GPIO10; let spi = Spi::new(peripherals.SPI2, Config::default() .with_mode(Mode::_3) .with_frequency(Rate::from_mhz(40)) ).unwrap() .with_sck(sclk) .with_miso(sdi) .with_mosi(sda); let cs_output = Output::new(cs,Level::High,OutputConfig::default()); let spi_device = ExclusiveDevice::new_no_delay(spi,cs_output).unwrap(); let mut buffer = [0_u8; 512]; let di = SpiInterface::new(spi_device,dc,&mut buffer); let mut display = Builder::new(ST7789,di) .display_size(240,240) .orientation(Orientation::new()) .reset_pin(rst) .init(&mut delay).unwrap(); println!("display 初始化完成"); backlight.set_high(); let raw_image_data = ImageRawLE::new(include_bytes!("../../assets/ferris.raw"), 86); let mut x = 0; loop { display.clear(Rgb565::BLACK).unwrap(); let ferris = Image::new(&raw_image_data, Point::new(x, 0)); // draw image on black background display.clear(Rgb565::BLACK).unwrap(); ferris.draw(&mut display).unwrap(); delay.delay_millis(400); x+=10; if x >= 140{ x = 0; } } // for inspiration have a look at the examples at https://github.com/esp-rs/esp-hal/tree/esp-hal-v1.0.0-beta.0/examples/src/bin } 效果展示{callout color="#efb44d"}屏幕是倒着放到，图片显示是正的{/callout}{lamp/}本项目参考了mipidsi(esp32c3) esp-idf-hal/examples /spi_st7789.rs