SSD1306 driver

I2C and SPI (4 wire) driver for the SSD1306 OLED display.

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Documentation

Changelog

Examples

From examples/image_i2c.rs:

```rust

![no_std]

![no_main]

use cortexmrt::{entry, exception, ExceptionFrame}; use embeddedgraphics::{ image::{Image, ImageRaw}, pixelcolor::BinaryColor, prelude::*, }; use panichalt as ; use ssd1306::{prelude::*, I2CDisplayInterface, Ssd1306}; use stm32f1xxhal::{ i2c::{BlockingI2c, DutyCycle, Mode}, prelude::*, stm32, };

[entry]

fn main() -> ! { let dp = stm32::Peripherals::take().unwrap();

let mut flash = dp.FLASH.constrain();
let mut rcc = dp.RCC.constrain();

let clocks = rcc.cfgr.freeze(&mut flash.acr);

let mut afio = dp.AFIO.constrain(&mut rcc.apb2);

let mut gpiob = dp.GPIOB.split(&mut rcc.apb2);

let scl = gpiob.pb8.into_alternate_open_drain(&mut gpiob.crh);
let sda = gpiob.pb9.into_alternate_open_drain(&mut gpiob.crh);

let i2c = BlockingI2c::i2c1(
    dp.I2C1,
    (scl, sda),
    &mut afio.mapr,
    Mode::Fast {
        frequency: 400_000.hz(),
        duty_cycle: DutyCycle::Ratio2to1,
    },
    clocks,
    &mut rcc.apb1,
    1000,
    10,
    1000,
    1000,
);

let interface = I2CDisplayInterface::new(i2c);
let mut display = Ssd1306::new(interface, DisplaySize128x64, DisplayRotation::Rotate0)
    .into_buffered_graphics_mode();
display.init().unwrap();

let raw: ImageRaw<BinaryColor> = ImageRaw::new(include_bytes!("./rust.raw"), 64);

let im = Image::new(&raw, Point::new(32, 0));

im.draw(&mut display).unwrap();

display.flush().unwrap();

loop {}

}

[exception]

fn HardFault(ef: &ExceptionFrame) -> ! { panic!("{:#?}", ef); } ```

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.