I2C and SPI (4 wire) driver for the SSD1306 OLED display.
This crate uses probe-run to run the examples. Once set up,
it should be as simple as cargo run --example <example name> --release.
From examples/image_i2c.rs:
#![no_std]
#![no_main]
use cortex_m_rt::{entry, exception, ExceptionFrame};
use embedded_graphics::{
image::{Image, ImageRaw},
pixelcolor::BinaryColor,
prelude::*,
};
use panic_halt as _;
use ssd1306::{prelude::*, I2CDisplayInterface, Ssd1306};
use stm32f1xx_hal::{
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);
}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.
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.